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Nov 25 at 17:04 comment added Charles Bretana I assume everyone stating that the V-22 can land with only one propellor operating is talking about with both propellors tilted horizontally to the ground, (Helicopter mode), as the tips of the propellor would impact the ground when tilted the other way. And if you mean landing in airplane mode, with no lift from the rotors, that raises the issue as to exactly what the Stall Speed would be for that small wing with no lift being generated by any propellor.
Nov 25 at 2:10 history edited Carlo Felicione CC BY-SA 4.0
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S Nov 25 at 2:10 history suggested Peter Mortensen CC BY-SA 4.0
Copy edited (e.g. ref. <en.wikipedia.org/wiki/Lockheed_P-38_Lightning>, <en.wiktionary.org/wiki/counterrotating#Adjective>, <en.wiktionary.org/wiki/by#Preposition>, and <en.wiktionary.org/wiki/driveshaft#Noun>). Used more standard formatting (we have italics and bold on this platform).
Nov 24 at 19:59 comment added AirCraft Lover @DKNguyen, airplane mode, of course. It is definitely not capable to hover or to land in helicopter mode with only one rotor.
Nov 24 at 19:53 comment added DKNguyen @AirCraftLover Landing with one rotor like an airplane? Or like a helicopter?
Nov 24 at 19:41 comment added AirCraft Lover @MaxR, I searched it but I didn't find. It could be mentioned on tv news or mentioned by the related air force staff or by the our DoD or by the so self-claimed expert in aircraft so it not google-able. But for sure, it was mentioned that the V-22 can fly and land safely with one side rotor only. But in my humble opinion, it is very possible as it is a common feature of an airplane can fly with one engine only, even once an airplane in our country still can glide and land on a river with total power loss, just like the airplane land in Hudson river in the US. So, make sense if V-22 also can.
Nov 24 at 19:33 comment added AirCraft Lover @DKNguyen, seems like it is the most possible answer of all possibilities. As the propeller located on the tip of the wing, the downwash will definitely created larger spiral force to the wing.
Nov 24 at 17:14 review Suggested edits
S Nov 25 at 2:10
Nov 24 at 4:28 comment added fectin Everyone here needs to consider what a "propeller failure" even means. There is also some terminology peculiar to V-22 which is missing here, and which suggests that none of the commenters are actually osprey experts.
Nov 24 at 4:19 comment added Max R @SnakeDoc You are quite correct. Without a tail rotor or thrust vectoring, the vertical flight regime would be impossible if the rotors did not counter-rotate.
Nov 24 at 4:12 comment added Max R @AirCraftLover Can you cite a source that an Osprey can fly with one propellor failed? It can land (not hover) with one engine out, and the other engine driving both rotors. But it is impossible for me to imagine an Osprey flying in any configuration with one propellor inoperative. The Osprey's thrust is twice the distance from the centerline of a typical 2-engine airliner, has a much shorter fuselage, and much smaller rudders.
Nov 24 at 2:30 comment added DKNguyen @AirCraftLover Search up the flying pancake. High pressure beneath the wing makes it want to spiral up around the tip onto the top of the wing. A tip mounted propeller swirling air the opposite direction alleviates this and increases efficiency. It effectively makes the wing longer.
Nov 24 at 2:03 comment added AirCraft Lover @CharlesBretana, one of its feature they offer is the ability to continue cruise (air plane mode) even with only one side propeller only. Indeed, not possible to hover, but for sure it can land safely. One engine can produce 6000kW, compare to the engine used by B737 Max, one engine can produce power until 8000kW. We are talking maximum load.
Nov 24 at 1:00 comment added SnakeDoc Is there not also the effect of cancelling out rotational forces, negating the need for a tail rotor? Similar to the Chinook?
Nov 23 at 22:56 comment added Charles Bretana This is correct, but even more important, I'm pretty sure that in the Osprey, even in horizontal flight, if a rotor fails the aircraft will crash. It certainly can't land with only one rotor. So there is no need to minimize or worry about P-factor in that scenario.
Nov 23 at 18:17 comment added AirCraft Lover What is the meaning of the propwash vortices to move out board in this sentence: Having a right engine turning clockwise, and a left engine turning counterclockwise, causes the propwash vortices to move out board and avoid interference with the empennage during forward flight.?
Nov 23 at 17:47 history edited Carlo Felicione CC BY-SA 4.0
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Nov 23 at 16:45 history answered Carlo Felicione CC BY-SA 4.0