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Old Mar 22, 2005, 02:40 PM
brushless nutjob
Inverted_Fly's Avatar
Atlanta
Joined Apr 2004
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not all planes can just bank and yank like you describe. A great deal of modern 3ders have a hard time doing that, especially the Tensor.


flat turns are easy and fun. vertical pinwheels however, are difficult and fun.
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Old Mar 22, 2005, 07:56 PM
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Joined Aug 2004
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So we have coordinated turns, banked turns, and flat turns. I am still a little confused, I understand that a banked turn is not always a coordinated turn but can be, but a flat turn is never a coordinated turn (is this correct)? Sorry for the knit picking on the terminology I would just like to get a handle on the differences among these turns.
thank you
shawn
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Old Mar 22, 2005, 11:17 PM
Burnin' holes in the sky!
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Gilbert, AZ
Joined May 2003
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Like Inverted Fly said, the best turning technique depends on the airplane. A standard coordinated turn is where the plane is banked to one side and rudder in the same direction is applied to keep the plane tracking through a circle. This is how a "competition turn" is done. A "yank and bank" turn is basically initiated by banking the plane so much that yaw doesn't matter, then pulling up on the stick. The guys that do this are the ones you usually end up ducking for at the field . Finally, a flat turn is where rudder is moved to one side and aileron/elevator are used to keep it straight and level.

Dan
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Old Mar 23, 2005, 01:07 AM
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San Jose, Ca.
Joined Jan 2005
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Quote:
Originally Posted by SkyPyro
Like Inverted Fly said, the best turning technique depends on the airplane. A standard coordinated turn is where the plane is banked to one side and rudder in the same direction is applied to keep the plane tracking through a circle. This is how a "competition turn" is done. A "yank and bank" turn is basically initiated by banking the plane so much that yaw doesn't matter, then pulling up on the stick. The guys that do this are the ones you usually end up ducking for at the field . Finally, a flat turn is where rudder is moved to one side and aileron/elevator are used to keep it straight and level.

Dan

So, would a typical foamy need elevator and aileron to execute a flat turn?



bob
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Old Mar 23, 2005, 02:20 AM
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ryanl2006's Avatar
Ames, Iowa
Joined Oct 2002
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Quote:
Originally Posted by steelgtr
So, would a typical foamy need elevator and aileron to execute a flat turn?



bob

Most will. Usually when rudder is applied the nose will drop and one wingtip will drop but it depends on the plane. Some planes can do it with just rudder, but most require aileron and elevator to remain flat.
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Old Mar 23, 2005, 02:24 AM
Burnin' holes in the sky!
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Gilbert, AZ
Joined May 2003
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Your theoretical "perfect foamy" wouldn't need elevator or aileron to pull off a flat turn. However, even the best designs have some degree of coupling. Aileron is just used to keep the wingtip on the inside of the turn from dropping (or climbing if there is forward sweep/anhedral). Elevator is then used to keep the plane from climbing or diving.

Dan
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Old Mar 23, 2005, 07:19 AM
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dick hanson's Avatar
slc ut
Joined Nov 2003
867 Posts
the new Shockflyers - F3A and YAK- balanced for nice controllable maneuvering -NOT really tailheavy - do instant flat turns with rudder only - no fiddling with other axis.
The coupling is so minimal as to ignore in all but extended max deflection turns .
There are no typical foamies - I know of .
but a good typical 3D type that is of latest generation -all do instant , flat turns -even a rank beginner can do em.
These planes are all flat -flat wing ,flat stab- no dihedral but the lateral area is well balanced and the common engine /wing/stab force setup is pretty darn nuetral
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