Hacker News new | past | comments | ask | show | jobs | submit login
Drone Flying 101 – An interactive tutorial for beginners (fpvsim.com)
265 points by mosfets 25 days ago | hide | past | favorite | 134 comments



There are two big families of drones: FPV and non-FPV (sometimes called cinematic). Flying non-FPV, GPS stabilized drones (like the DJI Mavic family of drones) requires almost no training, you just put the drone in the air and it stays there, waiting for your instructions.

Flying FPV (in acro mode) has a steep learning curve (but is, arguably, much more fun). The way to learn is to use a proper simulator. The most versatile and popular one is Liftoff and costs around $20, but there are many others, including free ones. You should also buy a dedicated controller since normal game controllers don't work well (the throttle joystick needs to stay where it is instead of returning to center). Dedicated drone controllers can be found around $40-50 used.

And then off you go! Be prepared to spend at least 20 hours on a sim before you can fly IRL (it took me around 100 hours to really be comfortable). It's surprising how well the learned skills transfer from the simulator to the real thing.


One other note about simulators is that they include PID tuning (at least Liftoff does), which can be an incredibly time consuming and tedious process with a new quad if you're new to it. It's better to learn that process in a sim where you can change values and see how the results affect behavior right away. In the real world, you typically have to fly back, land, plug the quad into your laptop/phone, change the values, sync, unplug, and take off again.


Definitely agree. FPVSIM allows for PID tuning as well. You can learn a lot on how they affect drone dynamics by playing with the PID values once you know the basics of PID algorithm.


What dedicated controllers would you recommend? Is there a FPV that works for both drones in real life and in games? Any ones in particular you like?


Some replies to this already, but quick notes:

* "Controller" isn't used much as a term, when you start looking around. You'll see things listed under "transmitter" or "radio"

* The majority of FPV transmitters use OpenTX or EdgeTX software (EdgeTX is newer and a fork of OpenTX). Both of these support plugging the transmitter in to a host computer over USB, where it can appear as a HID joystick

* ExpressLRS (ELRS) is an open source radio protocol, with 2.4ghz and 900mhz versions. 2.4ghz is a denser waveforms, so better latency, but less penetration (unless you are going loooooong range, default to 2.4ghz). If you buy a radio today, get one with ELRS built in

* ELRS transmitters include Bluetooth. They can act as a BLE controller to a host computer, for wireless gamepad use: https://oscarliang.com/expresslrs-bluetooth-joystick/

* And there is a 3rd option for more convenience, since both HID over USB and BLE wirelessly require a tiny bit of menu fiddling: A dedicated simulator dongle. This acts as a full ELRS receiver, so you would just turn on your radio within range and play the simulator: https://www.getfpv.com/squid-stick-wireless-usb-simulator-do...

And finally, on radios themselves:

* The big split is between smaller "gamepad" style transmitters and full-size box transmitters. The larger versions usually have more inputs than you would use, for other radio control hobbyists (wings/planes/etc)

* Radiomaster is a solid recommendation. Check out the Pocket as an intro radio ($65 USD), and then the Boxer as a step up ($140 USD base, or $260 with all-metal gimbals and upgrades)

* Unless you have a strong reason to, like someone is gifting you a pile of quadcopter hardware using a different protocol, go with ELRS 2.4ghz built in


ELRS is fine but Crossfire is considered by many to be the superior radio link. The TBS Tango 2 is a great transmitter and comes with Crossfire built in.


Ever since ELRS 3 came out, I haven't met many people that argue that Crossfire is a superior radio link. The fact that ELRS 2.4GHz has gotten to 100KM and even now ELRS 900MHz RX's and TX's are widely available still gives that option, too. The smaller antennas for 2.4GHz are so much more convenient, as well.

Also, ELRS has modes to go to higher refresh rates than crossfire in 900MHz (200Hz vs 150Hz for crossfire). ELRS is also being rapidly developed(https://github.com/ExpressLRS/ExpressLRS/releases/) and has Gemini dual-channel modes (including cross-band support that doesn't have hardware for it yet), whereas crossfire (or TBS in general) has barely done anything.

And ELRS is cheaper (as it's open source) because of multiple hardware vendors and is more widely available as TBS has always had rather poor inventory management (their site now shows as unavailable for many components).

Don't get me wrong, crossfire was an absolute game changer when it came out, but TBS has really stagnated over the past few years.


This is my understanding of the state of the art in transmitter technology too. ELRS equipment and software offer a number of advantages over every other protocol I have used. It’s easier to pair and configure, it offers robust connectivity even in lossy signal environments, and its range exceeds that of any video downlink on any of my aircraft.


The one exception to your statement is "easier to pair". ELRS has historically been more of a pain to pair and update than crossfire.

Crossfire has OTA updates from the TX to the RX's, so you just need to update the transmitter and updates can then be pushed to RX's next time you connect. On crossfire, the button on the TX's always allowed for easy push-button binding.

ELRS was a pain having to flash and update binding phrases via wifi, which often had poor wifi chips on cheaper receivers. You often needed to take your RX, update it near a computer, update the binding phrase, update your TX, update the binding phrase on it. You had to do this for each RX individually (still do for updates).

3.4, released just last week, now allows for push-button binding on RX's (the button was originally reserved for recover modes on boot).

However, once you're configured and bound, ELRS is technically better at every turn. If they figure out a way to get OTA updates (harder for them as there's dozens of different hardware vendors with diferent designs and limited flash space on them) to RX's, there's no reason to do crossfire. The only remaining issue with ELRS is that there are bad vendors with poorer quality hardware, but it's only an occasional problem.


Thanks, that's excellent info!


I use the DJI Remote 2. It's a little expensive at $150 new / $100 used, but it's justified if you want to use it with a DJI video system in the future (Caddx Vista or DJI O3), or the Avata (but not Avata 2...)

But there are controllers from BetaFPV that are much cheaper. A friend of mine just got started with the BetaFPV Radio Lite 3 ($60 new) and is very happy with it.

Edit: RC2 -> Remote 2.


You probably meant DJI Remote 2. DJI RC2 is the one Mavics use.

Anyway, I just wanted to warn anyone on the market against either DJI or BetaFPV controllers - DJI ones only work with drones that have O3 on them so if you want to fly a whoop you're going to buy another controller. And there's an issue where when your video link to the goggles breaks, your controller is offline for a couple seconds - that's all it takes to lose a drone when flying long range. Not being able to react to video loss by gaining altitude is Not a Good Thing(TM).

Regarding BetaFPV: First, their gimbals are crap. Their build quality is crap as well. Oh, and it doesn't run EdgeTX, doesn't work properly with its own ELRS module when flashed to ELRS v3 and doesn't have a screen so that when you lose your drone good luck using telemetry RSSI to locate it.. Radiomaster Pocket is much better value for the same money


Yes thanks for the correction, edited.

DJI remotes work with Caddx Vista as well (the predecessor to O3); those are digital video systems that offer much better quality than analog.

I have no experience with BetaFPV remotes, but I know they're cheap...


> DJI remotes work with Caddx Vista as well

Well, you're technically correct (the best kind). They work with first gen VTXes when they're upgraded to the V01.01 firmware. The catch is that if you upgrade your V1/V2 Goggles will no longer work with those VTXes.. And now there are Goggles 3 that aren't even compatible with O3 VTX yet, and it's 50/50 on whether or not they'll work with first gen - it's all a pretty big mess compatibility wise :)


There are a lot of options out there, but from what I understand most of the common FPV controllers you'll see around will work as a HID when connected to a computer over USB.

I personally have a Team BlackSheep Tango 2 - though I haven't been flying as much as I would like, and have done little simulator time, it's worked fine for both.

If you want to get into the hobby in general, look up Joshua Bardwell on youtube - a lot of great information, including a variety of controller reviews, simulator reviews, and general "here's how to get started" videos. There are of course others, but Bardwell is the only one I'm actually subscribed to (not that I'm any great metric).

EDIT: for a lot of great information, see my sibling comment from Matthew.


I’d avoid the DJI controller if you want to truly get into FPV. Eventually you’ll want to fly non-DJI quads (eg the o3 air units are too heavy for whoops, so you’ll be analog or HDZero) so stick with ELRS.

The arguably best all rounder controller at a decent price point is the radiomaster boxer at about $99. Their pocket model is only $55 and super compact, but isn’t really full sized.


>Eventually you’ll want to fly non-DJI quads

If you do FPV for fun, maybe. If you do it for video needs you'll most likely getting a drone, usually DJI, and sticking with it.


Even if it is just for fun, having a more powerful and a separate controller - that isn't tied to the video system is very valuable. If DJI signal gets lost, you simply punch out or trigger return to home using your ELRs controller.. and know that the quad will be safe..


Interesting, I am just getting into hobby and it looks like not many are flying dji for racing, some fly dji air unit ( just the video cam for video tx/rx but drone hardware rarely for freestyle. Even for cine dji does not dominate. What’s really cool is that a lot of people build and modify their drones as flying acro can lead to a lot of crashes:-)


DJI make the best easy to use quads that are basically GoPros that can be positioned anywhere in three dimension space at command. If you have a vlog about how you’re going off grid or hiking the Appalachian trail, that’s what you should use.

For true FPV, the DJI quads are way too limited in many ways and are not exceptional at anything - they’re a solid high-end Toyota Corolla.

The DJI video system is very good, and does make its way into a lot of custom FPV quads. But it’s very heavy and high latency (also, just as bad: variable latency), so never used for racing. And it’s also too heavy for smaller aircraft. It’s also more expensive than all alternatives, once you get past about 3 builds.


DJI is not very good in terms of end to end latency which are necessary for racing. They are good with packed techs, but racing market is too small for them.


>Interesting, I am just getting into hobby and it looks like not many are flying dji for racing, some fly dji air unit ( just the video cam for video tx/rx but drone hardware rarely for freestyle. Even for cine dji does not dominate. What’s really cool is that a lot of people build and modify their drones as flying acro can lead to a lot of crashes:-)

Yeah, as I said for FPV and for non-video, people fly other stuff.

But for non-FPV and also for video (meaning the millions doing: content creators, news, advertising, corporate, event videos, etc - don't know what Hollywood uses) typically use DJI.


Depends what type of video, doesn’t it? I’m surely biased but whenever I see people working on high-end film sets they’re using serious cinelifters, and even for property filming you typically see cinewhoops, and for action sport (motocross, drifting, etc) you’ll never see a DJI


Not talking about Hollywood or high end film sets. Or something like a Nike or Superbowl ad, which has the budget of a small movie.Those can use anything, even real life helicopters. Also not familiar what they use for sports (another special case).

But for millions doing content creation (professionally), news, ads, events, and such, I see DJI dominating. Again, I mean the non-FPV space (unfamiliar with that).


Content creators tend to use FPV more and more, because it lets them do tricks and "spectacular" shots not possible otherwise. But in many cases, even if the drone itself isn't DJI (and it usually isn't, for now), the video system is DJI (O3).


Yeah, DJI clearly owns the video space for FPV, with the exception of racing and a lot of freestyle where latency is king, so HDZero or analog rules.


If H.R. 2864 [1] passes, we're all going to have to fly non-DJI quads ..

[1] https://www.govtrack.us/congress/bills/118/hr2864


The drone controllers usually have more resolution than your typical PlayStation controllers. They can get recognised as USB joystick anyway.

If you prefer game pad style controllers, you can use radiomaster pocket/Zorro depending on your budget.. ELRS version.


+1 on the controllers resolution part. Just add to it, gamepads usually do things like dynamic frame rate for power saving reasons, these features are not the good if you do fly drones for competitions. Good to get a OpenTX/EdgeTX based controllers, which offers 1Khz frame rate in newer versions.


I bought a $300 fpv kit with small drone, goggles, and controller that worked in the sims. Emax tinyhawk i believe. Small enough to fly indoors


Yes. Look into radios from radiomaster with ELRS or multi protocol hardware.

They have USB ports and can be plugged in and detected as a joystick.


Checkout Jumper too, they are the biggest competitor of radiomaster, might offer better price with similar quality.


Radiomaster Zorro. This is a matter of taste, but I don't understand the form factor of the rectangular ones!


I was able to fly the DJI avata in full manual mode with maybe only 4 hours in a sim. I'm not sure if that's because it just "clicked" or if the avata is just way easier than other FPV drones. I definitely think the ability to exit FPV with a click of a button and it's crazy durability have allowed me to be comfortable taking risks, which has made me a better pilot.


It is not quite the same as FPV acro and has some additional safety features


Great point. Using Liftoff and similar is a game changer. Flying in acro mode is something where you will crash repeatedly at first. (At least I did... in Liftoff thankfully!) Then after a relatively short time, the controls will be intuitive, it will feel easy, and you don't forget. Like riding a bicyle is a perfect analogy.

I think 20 hours is excessive. I'd say 30 mins to 2 hours is fine, depending on the user. The most dramatic learning will happen in the first 10 mins or so.


Depends on what you intend to do IRL if it's just fly around then a couple of hours in acro will get people up to the point where they can bimble about and sort of land but will easily get way out of their depth.


Velocidrone $20 is the most popular sim with the pros. It's designed to be the most accurate at as cost of graphic detail.

They have open races every week.

I can place in the top 300 sometimes.

You can see the FPV of any of the races. The fastest pilots fly so fast it's insane. It's hard for me to comprehend how they can even comprehend what they are seeing.

They will fly though a 3 gate ladder(aka corkscrew) in 1.5 seconds.


There is a reason why these fpvs are so successful in the Ukraine/Russian war. Much quicker than a regular soldiers reaction. And it's over.


Curious, do pilots learn to fly using sims?


Private Pilot training tends to be in aircraft but when training for expensive, hard-to-book aircraft which require special certifications to fly there's often sim training involved. Sim training is also useful if you're about to fly an aircraft that's similar but not the same as an aircraft you're familiar with.


Absolutely. Nowadays sims get more and more realistic and you can definitely learn a lot from them and transfer a big chunk of the learning to real drones.


Commercial pilots are sent to the sim for training about once a year. Hard to train for a bird strike otherwise.


Not entirely unrelated, but FPV drones are now the main weapon of the Ukraine war. They started using them against tanks, then groups of soldiers, but have now found that they are cost effective enough to go against individual soldiers.

The drone soldiers operate in small teams from underground bunkers close to the front from which they launch hundreds of drones a day, with different types of drones for different targets. The limiting factor is the amount of drones, Ukraine plans to build one million of them this year domestically.

Apart from jamming, there's not much to defend yourself against drones except staying underground, or moving fast enough that there is no time for you to be spotted and tracked. But drones can see kms away and move at hundreds of kmph, then go after you personally, even inside buildings, and even at night with infrared vision.

In an interview they asked a drone-ace how many ennemies he killed, he said he couldn't remember; "Do you remember how many cups of coffee you drank last year?".

I am not sure what to think about all this, but it is certainly fascinating


Bombs and artillery is the main weapon, FPV drones are a novelty and they're being limited by being tied to the remote pilot. Pilots don't really scale that well - it takes a long time to train, and they have to be relatively close to the drone, so they're vulnerable to counter attacks.

Autonomous drones are supposedly already used for oil refineries (vision based navigation, to mitigate GPS jamming), once this tech trickles down to smaller drones things will get really scary..


I wouldn't describe the large scale use of FPV drones in conflicts over the past couple years as a "novelty". They perform reconnaissance on a scale that wasn't previously possible; harass, pin down, provide target coordinates for, and even directly attack infantry squads; and destroy immobilized or poorly armored vehicles. That's not even mentioning the single-use specially made drones with larger warheads, which are capable-enough of taking out armored vehicles that tank designs have been forced to evolve.


> it takes a long time to train, and they have to be relatively close to the drone, so they're vulnerable to counter attacks.

You'd think so. I mean to fly a quad properly, you'd need like 20-30 hours. To just crash a drone into a large enough target, 6-7 hours is more than enough.

As for having to be relatively close to the drone, range extenders these days seem to go a long way.. or even having a receiver outside a safe bunker - that seems to be how the Ukrainians/Russians fly these days.


> To just crash a drone into a large enough target, 6-7 hours is more than enough.

I know nothing about this but this makes it sound like the target is cooperative. Isn't it harder to crash into a target that actively tries to avoid you?

(E.g. listening for propeller whine, shooting at objects in sky, ducking into small openings, having signal jammers, moving/arranging personnel to limit the impact of drone damage, running counter-drone efforts, etc.)

I remember reading that book about the Predator drone and being surprised how much of Predator effectiveness came down to pilot skill, rather than technology. The predator was just a slow, small prop plane, after all. What made it powerful was that the pilots knew exactly how to use those properties (along with knowledge of the enemies' technology limitations) to evade detection and interception.


There's plenty of footage you can see of how the FPV drones are used.

> to evade detection and interception.

I was under the impression that the Reaper was typically used where US has air superiority. There is an international combat guy on Youtube who fought with the YPG in Rojava and has been hunted by that type of loitering drone, he said they are easy enough to hide from, but the main thing is that they are almost always around-- and eventually lead to complacency. To quote the IRA: "we only have to be lucky once. You will have to be lucky always."


With the predator, you're controlling a large, expensive aircraft flying at higher altitudes. But with these cheap $250 flying bricks, you're directly controlling the bullet.

You don't have to worry about stalling, latency, accuracy etc.. they are also harder to shoot down because of their size and speed.

So they simply select targets like a moving vehicle or a bunker or even a group of moving people, and go kamikaze.


> once this tech trickles down to smaller drones

That is here now. Small drones are appearing in Ukraine that target vehicles and infantry using machine vision and thermal imaging. This is driven by RF jamming that limits FPV. Also, the terminal phase of a small drone attack is often where the attack fails and automating that improves effectiveness even when FPV is possible. Less skill is necessary when a fighter can just designate a target and hit the 'kill' button, so this is a force multiplier.

An interesting story on this is found here[1]. Quantity serial production is underway and it will be in wide use very soon, as in the next couple weeks. One thing they've done is secure the software to prevent reverse engineering.

[1] https://mil.in.ua/en/news/drones-with-machine-vision-are-bei...

Another thing that stands out to me in that article is the claim that production is limited by component availability. An obvious thing to do is further enhancing these drones by converting them from suicide drones to bomb delivery vehicles so they can be reused.

> Bombs and artillery is the main weapon

That's a generalization that overlooks a great deal in Ukraine. It's like selecting some organ in the body and calling it the "main organ." These drones frequently provide precision forward observation that enables artillery and precision missiles. It's a system, and without FPV observation, FPV interdiction and other contributions Ukraine wouldn't be performing as well as it has.


Flying a drone from inside a bunker is, for all intents and purposes, playing a video game. Call of Duty and Flight Simulator have been training very capable pilots for years now. If you want to see the (near) future of warfare, hop on an open COD game.

As for optional, full autonomy on small drones - I suspect it's further along than many might expect.


> once this tech trickles down to smaller drones

We're almost there: https://www.researchgate.net/publication/369380266_Channel-A...


> FPV drones are a novelty

I can't find the link, but I believe I read Russian doctors claiming that drones were now the #1 cause of battlefield infantry injuries.


This makes sense because of the other aspects at play in the war, namely no one having clear air dominance, which allows artillery to shape the battlefield. In the shaped battlefield, the hunter-killer type drones have a target rich environment.


That’s really impressive, - although for more deadly weapons deaths/injuries ratio would be different than with drones.


I think the problem is with the autonomy.

Someone is gonna end up using something like a global hawk (spy drone) to deploy smaller kamikaze drones.


Ukraine already does the mothership thing using a larger multicopter, and there is a company working on the autonomy part. They are supposedly close to releasing the product.

https://news.ycombinator.com/item?id=40428492


it's "cool" tech but unfortunately not in the industry I would like


There are only two forces of creation in tech, the porn industry and the military


As they are for life in general.


We’re already there

Headed to production


Drones basically have flipped the total modern artillery doctrine on their heads.

With the proliferation of fire-finder-radar, modern artillery started to switch from dug in stationary guns to highly mobile "shoot-and-scoot"-tactics, in which a gun quickly fires half a dozen rounds in a time-on-target salvo and relocates to dodge the counterbattery fire. For this, modern Artillery systems like PZH2000, Archer, RCH155, Dana and Caesar are optimized.

Since the advent of quick and cheap FPV drones, moving artillery on the road is much more in danger, and dug-in guns with jammers, SHORAD and overhead protection again regained the survivability edge - albeit mainly because russia lost most of its modern radar.

The only western SPA with any chance of survival seems to be the PZH2000, as its on a tracked carriage allowing it offroad movement and concealment and being better armored than most wheeled contemporaries on Lorry-Chassis


Uh, I'm not sure FPVs have all of the effects that you're discussing.

FPVs are significantly range limited (~10km), and have relatively small surveillance footprint. It's true that persistent ISR is significantly increasing the danger posed to all vehicles within the 10-30km (perhaps further) of the 'front line', but these are predominantly coming from different classes of drones.

And yes, while FPVs can be queued onto SPGs (or whatever) by these other drones, so can other means of fires (like traditional artillery). As a reminder, tube artillery can usually reach out to at least 20km.

I am not downplaying the impact that drones in general have, and I'm also not claiming that FPVs cannot significantly shape artillery operations within 5-10km of the front line.

Here's the rub - Russia is clearly cable to assembly company sized AFV elements (though not consistently) to attack. And yes, we see these attacks generally get repulsed (with significant FPV drone involvement). So we know that Ukrainian ISR + FPV combination (Ukraine has been limiting its artillery usage) can be overwhelmed in the deeper space - it is possible to mass company sized elements, and transit them through into the line of contact, reasonably intact.

There's no denying that PzH2000 is more survivable than Archer or Caesar (that is infact the entire point of Archer and Caesar - trade suitability and tactical mobility for strategic/operational mobility). But you're also missing like... M109? Like by numbers, there were more M109s donated than any other western platform.


Domakha has ~50km range.

Here's a report (in Polish) from a FO mission to correct HIMARS fire (sadly the drone was lost but the Russians had to send a fighter jet to shoot it down with a rocket): https://x.com/Aldohartwinska/status/1792838189494706220


FPV drones have been used at much longer ranges than that - it’s pretty well documented with videos that with repeater systems there’s now been strikes in excess of 25km using FPV, by both sides.

That’s not to downplay artillery though: you simply cannot deliver the volume of fires with drones that you can with tubes.


>>And yes, while FPVs can be queued onto SPGs (or whatever) by these other drones, so can other means of fires (like traditional artillery). As a reminder, tube artillery can usually reach out to at least 20km.

Yeah but that's the whole point thats been discussed in interested circles - the shift of the vulnerability of SPGs from the firing to the travel phase in absence of accompanying VSHORAD. (If they just had 2000 Gepards) And as Gunlorrys have to travel and fire on certain roads, that decreases the problem space.

For the M109, you are completely right. I missed that one.

I am not saying that tube artillery has a problem, but that ~10-20km around the line of contact seems to be the place you don't want to rely on mobility alone for survivability. Rheinmetall currently seems to be developing a 100km ranged base bleed grenade for 155mm pipes.


Ok that makes sense.

I agree that persistent ISR has dramatically increased the vulnerability of especially road bound SPGs behind the line of contact.

I guess in my first post, I was emphasizing that the catalyst for this increased vulnerability was not the FPV drones, but rather of ISR drones.


I'm not going to go into details of why I know (other than I'm an FPV pilot with a drone licence in my country and I have direct connections to pilots operating in a certain conflict), but you're more wrong than right. FPV drones have become a factor and like all new technologies, had an immediate impact that has since been blunted by adapting, eg EM warfare/jamming, "cope cages" around tanks, and the fact that it's still artillery killing the most soldiers.

FPV drones carrying anything more than antipersonnel grenades are heavy, with limited range and can have EW sensors track the control link signal sources that can then be responded with artillery.

Since a lot of the adaptions have happened, FPV pilots on both sides have become more about harassing the enemy than a strategic flipping of artillery doctrine (which was shifting to more mobile batteries before FPV drones came into the picture).


Primary reason the 2000 fares better in terms of survival is because they are being extra careful with them. Likely the condition under which they were provided. But that means fewer missions, greater distance and so on.


Lancets are much bigger problem for artillery as they are not as limited in range as FPVs.


>In an interview they asked a drone-ace how many ennemies he killed, he said he couldn't remember; "Do you remember how many cups of coffee you drank last year?".

On the other hand, that's also what someone bragging insincerely would say...


OP is refering to this vid (which is great): https://www.youtube.com/watch?v=WipqeFgzdTc


Today I left major European defense company. It’s fantastic how tax payer pay for real outdated, but properly certified crap. Long story short: Bundeswehr soldier can’t use improvised drone at all. In fact he also needs a license and insurance. This renders earlier mentioned Bundeswehr useless in modern conflict against an enemy with many improvised drones. With certification 500-1000$ diy drone costs suddenly 10 times more. Maybe this is nice business opportunity to team up for?


Hopefully this will make invasion much more costly, so smaller countries will have more chances to survive their imperialists neighbors. Sure the criminals can level your city but they need toe eventually move their troops in to pillage the resources and then you can make them pay. Only downside is with countries that can afford to lose 1000+ men a day for years, it will cost them and you a lot.

Anyone knows if in China such men loses are acceptable for the population.


I just watched that video. I feel bad for the kid. Even in the absolute best case scenario, Ukraine wins and he has to live the rest of his life with nightmares of all the people he killed. I know this isn't exactly productive discourse but God, war is incredibly bleak.


How do they control them? Is it using Internet/4G? Isn't easy to jam those signals?


It's quite annoying that every stage of the lesson requires you to recalibrate your controller.

When I learned to fly racing drones, I used Velocidrone; I have no experience of FPVSim.

Even if you don't plan to eventually fly an acrobatic or racing drone, the sim experience can be a bit relaxing & focused. I used to practice on a 2nd monitor while I was in large mandatory group meetings for work.

If you do plan to build and fly drones, then a simulator is absolutely worth every penny. You pay for real drone crashes with time and money, and you probably need 100 hours of practice before you can handle the real thing (and not that well).

If I were going to get back into the hobby, I'd probably try to do long range fixed wing aircraft with FPV and flight automation. The view will be much more enjoyable and the batteries will last much longer. I think there's also less community pressure around RC planes vs. drones, especially the loud racing ones.


> If I were going to get back into the hobby, I'd probably try to do long range fixed wing aircraft with FPV and flight automation.

For me personally that’s too boring.. Long range is illegal in lots of places; in the US you technically need a spotter and the craft needs to be in direct line of sight, and pretty close because it should be visible with unaided eye - so, no binoculars.

3.5" is the sweet spot where you can build a sub 250g (or almost sub 250 - do cops really carry kitchen scales on them?) drone with decent performance that doesn't scare people when you fly around and still has the performance close to a 5" one and you can still do all of the tricks. The only drawback with 3.5" is that they're more susceptible to wind, so if it's always very windy where you fly, maybe consider a 5". Oh, and you also don't need to install a remote ID module on a sub 250g quad.


Still need a spotter. And if you have 107 for YouTube money, then sub 250g doesn't give you any alleviation from RID.


I was in to drone racing for a while then got out of it and in to high powered rocketry. Interestingly, a friend is moving and wants me to take over his passion project. A rocket powered glider using an 'M' (pretty powerful) rocket motor. He has a smaller POC working with an ardupilot autopilot launching on 'H' motors. The basic gist is the rocket takes the glider up and the autopilot handles the flying until the altitude is low and then manual takeover for landing. On an M motor, the glider is going to go far out of site so the ardupilot will have to get it back to the flight line where i can see it and land.

I need to check the rules closely because there's exceptions for rocket powered gliders but I don't think i'll be able to launch at a sanctioned event and will probably have to go out to FAR (friends of amatuer rocketry) which is a multi-day drive for me. Tripoli, the main governing body for experimental high powered rocketry, has rules about guided recovery with some exceptions for gliders. I have a feeling a rocket powered glider would have to remain in sight at all times which wouldn't be the case with an 'M' motor sending it up. Someone building a rocket that can fly to 100k feet and then land at a waypoint would attract a lot of unwanted attention from authorities and be bad for the hobby which is why those rules exist.


I think these days things have changed for the better... Free simulators,light weight fun builds that don't easily be damaged/cause damage from crashes..

I just bought my first fixed wing, but it made me realize why i like my sub 100 gram " 3" toothpick" kind of quads even more. i can fly those around the home, i get 10+ minutes of flight time (trust me, it gets annoying after 8-9 minutes and you need a break before you fly the next battery!), and even if i crash that 1S toothpick into something or someone, you barely cause a scratch..


What’s your setup for fixed wing? I am trying to build a fixed wing that has a nice dji camera and good range but I’m not sure if it’s possible


I bought this one:

https://www.youtube.com/watch?v=XDIgPN9TWS8

Yet to fly it though but this will fit o3 nicely. Range is always limited by your Video signal anyway..


I really wanna give this a go.

what controller would you recommend?


Radiomaster Boxer is probably the goto one for FPV quadcopters. If you want to fly LoS and autonomous missions then Radiomaster TX16S (large touchscreen, community support, all the LUA tememetry widgets you could ever want). For the link, it's either ELRS for manual flying or mLRS for Mavlink telemetry over LoRa.


+1 on the boxer. Great for everything at a pretty damn good price point.


Thank you very much!


I would recommend one of the radios that run OpenTX or EdgeTX (fork of OpenTX firmware: https://www.open-tx.org. These radios support a wide variaty of RF modules and have good support for simulators. No need to get a too expensive one.


good to know, thanks!


Check out https://www.fpvknowitall.com/fpv-shopping-list-controller-an... , it describes some of the best different options are depending on budget or requirements.


Depending on your personal preference, go with radiomaster pocket/zorro/boxer - ELRS version.


Wings are just so much fun because of the longer flight times and no need for a flight controller.

FC are essential for long range missions typically, but I have pushed several miles on just GPS overlay in my video feed.


Sorry, this tutorial is meant to be played with the on-screen virtual joystick. Not many people have radios lying around after all.


Velocidrone is a lot of fun.

There's also freerider fpv, DRL, and Liftoff. They're all pretty good, honestly.


Does anybody fly Ardupilot? Last time I was really into flying I used DRonin, which sadly got abandoned. I have a real aversion to BetaFlight, though I know it's got 90% of the market; however, Ardupilot seems to have a reasonably active community.

I don't really care about freestyling - I'm more interested in cruising over forest canopy, and having a reliable return to home function if radio signal gets lost. (I have probably 15 built out airframes; over time I probably need to replace defunct hardware, but a lot of it still seems reasonably acceptable. Quite a few f7 controllers for example.)


Ardupilot is quite good, but I would say it's kinda similar to Linux in terms of an operating system for your drone. It can be configured to work with a wide array of hardware and operations, but its 'off the shelf' interface isn't going to be as polished as some other more hardware specific systems. If you want to build your own, and have full control over your system, Ardupilot is a great place to start.


For those considering getting a drone license in Europe, this is free and official and applicable to whole EU https://learningzone.eurocontrol.int/ilp/pages/login.jsf?fac...


Hi, just registered and logged in, but your link just takes me to the catalogue page - is that intentional? Is there a specific course I should be searching for?

I've been thinking of pulling the plug on getting a dji mavic (maybe mini pro which is 249g and doesn't need a licence, but also thinking of another dji mavic pro also). A1/A3 is around £200 elsewhere.


Huh, once I figured out how to switch to first person view and acro mode and hooked up my PlayStation controller this was surprisingly fun – it behaved a little like a more friendly helicopter simulator. The most annoying part was that I couldn't have throttle on a completely separate control from the rotation axes, and the frequent brief freezes I got in Firefox.

If this is an indication of what it is like to fly real FPV drones, I'll have to put a lock on my wallet.


> The most annoying part was that I couldn't have throttle on a completely separate control from the rotation axes

You wouldn't want that because throttle is essential for flight control unlike with fixed wing where it's somewhat set and forget in many situations. It's partially alleviated by 'real' radios not having a spring on the throttle axis, so it stays in the position you've put it and part of it is just more practice..


I was actually thinking more in terms of helicopters having the collective on a separate input from yaw... bur then again, helicopter pilots use their feet to yaw, not their fingers.

Not springing back the throttle to neutral makes a lot of sense and would probably help!


Nice! Glad you liked it. Try a webkit based browser instead like Chrome/Safari/Edge, I'm not sure how much WebGL optimization firefox carries.


Having been intrigued by this (see my other comment) I decided to try out one of the more featureful higher-fidelity simulators, and discovered something else: I get really motion sick after just a few minutes.

Is this

(1) because my turns are uncoordinated,

(2) because I have an incorrectly configured viewport,

(3) because I'm not cut out for FPV flying, or

(4) a matter of persevering and getting used to the perspective?


If you don't get motion sickness from a simple flight simulator, I'd suggest that improving your skill so that the motions are smooth might be enough.


Can anyone recommend some good drones outside of DJI?


For cine drones DJI is so dominant, other brands don't stand a chance. Potensic is trying to exist, and their drones aren't bad, but not as good as those from DJI and costing about the same. Hubsan was once promising but seems to have entirely dropped the ball. Anafi's long dead. One sometimes hear about Skydio but they seem to only exist in the US? I don't know anyone who flies them.

For FPV drones there are many more options. I think one of the best brands is GepRC but there are so many others, it's impossible to mention them all. Still, for the video transmitting system, DJI is still dominant there as well, but at least you can use alternatives if you really don't like them (Walksnail for digital, or lots of others for analog).


Skydio has abandoned its consumer business - DJI basically killed them and now they're busy lobbying to ban DJI from government use (or ideally just ban them from being used in the US altogether - yay protectionism).

iFlight is probably among the top BnF brands together with GepRC, but nowadays it's cheaper to build your own (used to be BnF/PnP ones were cheaper than parts, no longer the case).


Joshua Bardwell has tons of educational videos on YouTube discussing options. Also his website has articles that are up to date on solid hardware options. It depends a bit if you wanna fly racing, freestyle or cine. I really do recommend his content especially learn to fly in sim with ELRS boxer radio.


If you want to go the DIY way, it can be a fun experience to build your drone (from a kit).

If you want a commercial off-the-shelf drone, nothing is remotely close to DJI, really.


Once you step outside of DJI there’s so much variety, what do you want to do?

If you’re learning to fly FPV, get a betafpv all inclusive kit like the cetus series - that’s what I started on.

Eventually though, if you’re flying hard you’ll crash hard so you want to know how to build and therefore fix your quads. I highly highly recommend Joshua Bardwells DIY build kit and YT video series.

But you can also buy bind-n-fly quads like the Nazgul.


What's the purpose though?

If it's dji like flying, there's skydio .

If it's fpv racing, freestyle etc ... There are many ready to fly options. Starting at 50 grams all up weight for indoor flying to 5" 200+kmph racers to bigger 7" long range quads..


Is there an alternate control system other than sticks? Looking for the mouse-keyboard combo


Is there a native Linux client yet? That's why I stick to velocidrone, liftoff, and wings.


You can play FPVSIM web simulator on any devices with a Chrome/Safari/Edge browsers. Which means - Windows/OSX/Linux/Chromebook/Android/iOS etc.


Hey, we gotta get ready for the alien invasion somehow!

https://en.wikipedia.org/wiki/Armada_(novel)


Good to start practicing now ;)


Too bad in most parts of the EU is illegal to fly drones. You can do it if you are far from populated areas but you need to go trough a complicated bureaucracy and obtain a permit before each flight.


This is not true as a blanket statement unless you are talking about commercial flying, large drones or restricted airspace. I'm not sure what country you are referring to but I haven't personally come across one that requires a per flight permit outside of higher risk commercial operations. Most EU countries are pretty harmonised on drone rules at this point.

Sub 250g drones such as the DJI Mini series and the Autel Nano will give you the most flexibility in places you can fly legally.


> I haven't personally come across one that requires a per flight permit outside of higher risk commercial operations

Portugal requires approval from the coast guard if your planned flight is within certain distance from a beach/the sea, which is quite easy in a coastal and islands country.


I don't read Portuguese but there's nothing specifically regarding beaches in their courtesy translation [1] beyond avoiding areas next to SAR helicopter bases (which is fair enough) and there's nothing on their UAS restrictions map [2] that would be unusual in any other EU country.

I have flown (below 120m obviously) in Portugal near the beach with a <250g drone after checking their UAS map so it would be good to know what I missed? Possibly you are referring to some additional local restrictions?

1: https://www.anac.pt/vPT/Generico/drones/operacoes_transfront...

2: https://uas.anac.pt/registry/explore


Hm, can't find anything about it now, but it was the case in 2021, at least for the Azores. If memory serves me right I even had to send some signed papers via the post because their online portal wasn't ready yet (which it seems to be).


I am a registered pilot. Had to do an online course and learn about restrictions, took an hour and was free and is valid across most countries in EU. Most stupid restriction is that for FPV, a spotter is required. But if I stay away from people/buildings I am permitted to fly up to IIRC 6kg drones


Is being in the vicinity of roads okay? And what does "stay away" mean, just not fly up to or over them, or maintain hundreds of metres distance?

I remember the Dutch laws said, before European alignment in 2020: 150 meters from any uninvolved person, any road, or any building. Since fields generally have less than 300 meters between two roads, that means you can try to fly between trees in some forest (somehow making sure there's not a person in a 300 meter diameter from the quadcopter) or inside your own four walls. It was essentially banned outright. Not to mention that a large percentage (majority?) of the population lives inside of airport no fly zones because there's smallish airports sprinkled everywhere, but that's understandable even if the omission of a height restriction is a bit silly (if you would be allowed to stay below the height of a large flat and are several km from the airport, any plane would be striking buildings sooner than your device... but people are stupid and we probably need this hard rule with safety margin)

I think the location rules are more relaxed now but I don't know them by heart anymore. Stopped taking them seriously during the total prohibition period. If it is now only about people and buildings (and perhaps highways or such), the location rules are making more sense at least.


If I recall correctly, the wording is "people and structures". If you want to fly close-by (10m or so) buildings and people, you can file for a special class/permit which requires an in-person exam. I might do that at some point, but haven't yet. Otherwise it's about what you said, couple hundred meters.

A 5" fpv quadcopter is already terribly dangerous, it happily pulls up to 50A, goes above 100km/h easily, and the rotors shred through flesh like butter, so it makes sense to at least regulate it somewhat. When I started, I had drones fall out of the sky because my battery connection was not firm enough and while I have by now quite some confidence in my soldering and building abilities, that's always something that can happen, so I naturally stay away from roads, regardless the rules.

For flying 5" drones, I usually take a trip to the country side where there's plenty of space. It's already stressful enough, and that way you can enjoy your flights much more without endangering people. Nobody ever asked for my permit, though, and nobody ever measured my signal strength and asked whether I have the required HAM license (which is far more involved getting). I don't fly in densely populated areas, at least not with my bigger drones. Sub-250g drones are barely regulated, and while they can hurt as well, the risk of serious injury is quite low - so you can try tinywhoops (which come even under 50g)


It's crazy how the US is almost the opposite. Flying in populated areas is permitted with some restrictions (airports, ports, defense) but flying over unpopulated national parks or BLM land is illegal or restricted.


Well, at least in the City of LA it's pretty much illegal to fly FPV (unless commercially, with very involved regulations). But that's also LA so..


That's not true at all. You can fly in many places in the EU without any permit, esp. for sub-250g drones. You can't fly over groups of people (isolated people is ok), over towns and near airports and airfields. (And yes, it can be annoying if you live in a big city center.)

For FPV flying it's a little bit different. In theory, it requires to have a "spotter" who will watch the drone when you fly, and the same other rules apply. But if you're flying in your backyard, close to the ground, or indoors, nobody will notice or care.


Not sure for FPV (don't own one), but it's quite trivial to get an operator license/registration, and you don't even need one for a certain smaller / more toy-like class of devices.

And this covers most parts of EU.

For 99% of flights you also don't need any per-flight "bureucracy".

There are some limitations, like X height in city, not above crowds, no "no-go" zones, but totally not "illegal to fly in most parts of EU".


In france, Drone less than 250gr are legal without any documentation in autorized places (or more exctely where it's not forbidden) but you need to be able to see the drone. So FPV is legal as long as the drone isn't too far.


The line of sight requirement prohibits FPV altogether, unless you have someone else maintaining the line of sight requirement for you

You're not looking at the drone when you're looking at your goggles, or at least that's how Dutch laws were explained when I last looked into them, and nowadays they're aligned in the EU or maybe EEA (edit: looked it up, it's still like this but I think what changed is that your spotter can be the line of sight fulfiller and they needn't be able to pilot the device, they just need to be able to tell you of danger nearby)


The list of authorized places is a very arbitrary. With my DJI I can take off in half of my garden, but the other half is not authorized. Apparently it falls in a nature reserve, but actually the entire reserve is in a residential area with no other restrictions.


>but you need to be able to see the drone

To have line-of-sight. Actually being able to see the drove is usually not possible - seeing a small drone at 40m high is near impossible after a couple hundrend meters away, especially as it moves.

Of course nobody actually tries to be able to really see the drone.


the law translated by deepl is more strict than in my memory:

> The drone must be visible to the naked eye and remain within the pilot's field of vision. Immersion flights (FPV) and the use of follower drones are possible, provided a second person is present.

https://www.service-public.fr/particuliers/vosdroits/F35675/...




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: