PugJesus@lemmy.dbzer0.com to NonCredibleDefense@lemmy.worldEnglish · 1 year agoThe US military and gaslighting its own troops; name a more iconic duolemmy.dbzer0.comimagemessage-square13fedilinkarrow-up1494arrow-down118
arrow-up1476arrow-down1imageThe US military and gaslighting its own troops; name a more iconic duolemmy.dbzer0.comPugJesus@lemmy.dbzer0.com to NonCredibleDefense@lemmy.worldEnglish · 1 year agomessage-square13fedilink
minus-squareEmpricorn@feddit.nllinkfedilinkEnglisharrow-up30arrow-down9·1 year ago“Without a propeller”!? When have you ever been able to see a propeller on a flying aircraft??
minus-squareQuinceDaPence@kbin.sociallinkfedilinkarrow-up10·1 year agohttps://m.youtube.com/watch?v=3Okx0T5vpFc
minus-squareCrackhappy@lemmy.worldlinkfedilinkEnglisharrow-up10·1 year agoTrue, it’s a blur, just like last night with your mom.
minus-squaretraches@sh.itjust.workslinkfedilinkEnglisharrow-up8·1 year agoAll the time, the tip has to stay subsonic so they don’t spin that fast. 1021 RPM on an H-model herc for example.
minus-squaremykneedoesnthurt@kbin.sociallinkfedilinkarrow-up3·1 year agothe tip has to stay subsonic - that’s what she said
minus-squareEmpricorn@feddit.nllinkfedilinkEnglisharrow-up3arrow-down2·1 year agoHuh, interesting. It just seems like from a distance, while both it and the aircraft are moving fast, a visual determination of whether a propeller is there or not or not seems… difficult.
minus-squaretraches@sh.itjust.workslinkfedilinkEnglisharrow-up4·1 year agoDepends on distance, angle, and lighting but they’re definitely visible from another aircraft. (Source: former c-130 flight engineer)
minus-squarehobovision@lemm.eelinkfedilinkEnglisharrow-up6·1 year agoHere’s a picture of the first us jet fighter prototype next to a propeller fighter, you can definitely tell a difference. https://upload.wikimedia.org/wikipedia/commons/c/c1/Bell_P-59_Airacomet_060913-F-1234P-013.jpg
minus-squareIlovethebomb@lemmy.mllinkfedilinkEnglisharrow-up5·1 year agoYou can’t see individual blades, but you can absolutely see the disc the propeller forms. Same with helicopters.
“Without a propeller”!? When have you ever been able to see a propeller on a flying aircraft??
https://m.youtube.com/watch?v=3Okx0T5vpFc
True, it’s a blur, just like last night with your mom.
All the time, the tip has to stay subsonic so they don’t spin that fast. 1021 RPM on an H-model herc for example.
the tip has to stay subsonic- that’s what she saidHuh, interesting. It just seems like from a distance, while both it and the aircraft are moving fast, a visual determination of whether a propeller is there or not or not seems… difficult.
Depends on distance, angle, and lighting but they’re definitely visible from another aircraft. (Source: former c-130 flight engineer)
Here’s a picture of the first us jet fighter prototype next to a propeller fighter, you can definitely tell a difference.
https://upload.wikimedia.org/wikipedia/commons/c/c1/Bell_P-59_Airacomet_060913-F-1234P-013.jpg
You can’t see individual blades, but you can absolutely see the disc the propeller forms. Same with helicopters.