PugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 24 days agoVought-Sikorsky VS-300 helicopter in tethered flight, USA, 1939lemmy.worldimagemessage-square8fedilinkarrow-up182
arrow-up182imageVought-Sikorsky VS-300 helicopter in tethered flight, USA, 1939lemmy.worldPugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 24 days agomessage-square8fedilink
minus-squareWaterWaiver@aussie.zonelinkfedilinkEnglisharrow-up4·edit-223 days agoThat only works if both rotors are the same size and speed. Perhaps Sikorsky’s tethers to the ground worked around the problem for that photo anyway. Not sure.
That only works if both rotors are the same size and speed.
Perhaps Sikorsky’s tethers to the ground worked around the problem for that photo anyway. Not sure.