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Old 07-22-2006 | 06:32 AM
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MikeEast
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Default RE: HOW-To..3D maneuvers

AKSCHU,
Sounds like you are talking about a knife edge spin. I think its posted earlier in the thread.


Mr. Scale,
Hovering is something you really can't "teach". You just stand the plane up on its tail and do it.. I will give you some tips ( in my simple minded terms) though.
1. You need the plane a little on the tailheavy side, not much, just a little. If the plane is constantly wanting to fall forward or back then you probably need to move the cg back some or tweek the engine thrust. However, you have to compromise on whether you want the plane to "fly" well or hover well.
2. You need a LOT of throw, especially if you are a beginner,,, 45° ++. The less experienced you are the more elevator and rudder throw you will need to get yourself out of trouble. As you improve you need less throw because you make fewer mistakes that require big corrections.
3. Max Aileron throw and ailerons that come in as close to the wing root as possible are key. You need LOTS of throw to stop the plane from torque rolling. You need to ailerons in close to the root so they get the maximum amount of prop was across them. If your ailerons are not in the prop wash they wont be effective in a hover. This holds true for most all 3D maneuvers since the plane is stalled in most 3D manuevers so you are always relying on thrust and propwash to fly.
4. You need enough power to pull out of a hover with significant authority. You should be able to hover the plane at 1/2 throttle or less. If you are at more than 1/2 throttle you may not have enough reserve power to yank the plane back upright if you get in trouble. This is critical to being able to safely learn to hover. If you are underpowered and get the plane into an awkward attitude and cannot pull out, you run a significant risk of losing control and crashing.
5. If the airplane is belly in, I personally key on the tail. TO rudder correct with the belly facing you, you simply push the rudder stick in the direction you want the tail to go. IF the canopys facing you its obvious what you do with the rudder, just correct normally.
6. To keep the plane from torque rolling, do not stand the plane straight up, leave the nose slightly less than vertical. Maybe 80 degrees or so. As soon as the plane stands up vertically it is going to want to torque roll. To stop this you need big aileron throws as mentioned above. Biplanes are going to torque roll easier and since they have a shorter wingspan relative to their size, they will torque roll really fast almost immediately.