I also googled when helicopters were invented and got 1936 for the FW 61.
And the term seems to have originated much earlier.
Your link says "first practical helicopter", I'm trying to match that up with the rotor and tail arrangement. The Chinook has twin rotors, works, and is a helicopter. I wonder if the fw61 just didn't get it good enough to be practical, at that time.
Further digging has pushed back the date to 1932 for the first helicopter
The TSAGI 1-ea with 2 tail rotors.
So it would appear wikipedia is wrong
Ok so the 1-ea is listed under 'first flights'.
The FW61 is listed as the first operational, but on it's own page is described the first practical.
So clear as mud.
It does seem there were helicopter shaped things when this magazine came out though.
I spotted that one alright - but the entire shape is quite different from the single-tail rotor versions (eg in the second pic down). Still doesn't explain how they came up with the modern design..
Though it seems Igor Sikorsky, who built the VS-300 built at least two prototype helicopters early in the century. Cant find any pics, perhaps they were of the modern design. Or perhaps he was just the first to successfully put it together but the design was well known.
I find it quite interesting how even with something as 'obvious' (in the what it is sense, not the inventing and concept sense) as a helicopter, it becomes very hard to pin down the 'first'.
Some of the sheets seem to be copied. They are from hand written originals, and are in blue ink. I don't think they're carbon copies as they don't have that tell tale haze of ink where pressure was applied, although there is certainly that distinct hue that carbon copies have. Paper seems to be standard.
Could that be from a mimeograph?
I'm pretty sure this is what I remember my school using during the same time frame.
The quoted number of copies (30 - 40) would be about right for a class.
Edit: Thanks to retzkek also
There were ancient photocopying processes, including wet ones where individual sheets were hung to dry like laundry. Plus the famous 'blueprints', which were used for large engineering drawings. Maybe your copies are some variation of those, but by the late 80s pretty much everything for regular sized photocopies was dry process with black toner, like we use today minus the digital controllers.
Well I feel old. Not quite Tha old though lol.
I recall still getting handouts from those in the late 80s/early 90s.
I saw "things to Come" in the 80s. But I'd forgotten the Samurai-style costumes. I wonder why Wells (or Menzies) went with that. I doubt that it was familiar to many in the late 30s (or even in the 80s).
The Americans foresaw a strategic need to carry out amphibious invasions of tropical islands that were great distances apart.
The Germans invested in the technology to lob ballistic missiles.
The Americans invested in the technology to build aircraft carriers and better aircraft.
Considering the state of technology in the 1930s and 1940s they both made the correct decisions for their strategics position.
Yet, Goddard was even ridiculed by New York Times.