I think someone was testing a military drone on me the other night.
New moon, so pitch black, can barely make out a tree in back garden. Bird squawking noise coming from tree 30ft up, but the one low light reflection of what would be its eye was bigger than a birds eye, the low light reflection suggested a 1"-2" diameter eye!!
That then makes me wonder is this a drone with toroidal style props as these are much close to being silent besides being more energy efficient, but with a bird feather like construction for improved noise reduction instead of a hard 3d printed plastic construction. Its the only explanation I can come up with due to its silence.
Why test at night? Your hearing ramps up to compensate for loss of sight.
New moon, so pitch black, can barely make out a tree in back garden. Bird squawking noise coming from tree 30ft up, but the one low light reflection of what would be its eye was bigger than a birds eye, the low light reflection suggested a 1"-2" diameter eye!!
That then makes me wonder is this a drone with toroidal style props as these are much close to being silent besides being more energy efficient, but with a bird feather like construction for improved noise reduction instead of a hard 3d printed plastic construction. Its the only explanation I can come up with due to its silence.
Why test at night? Your hearing ramps up to compensate for loss of sight.