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Aerobatic manouvers with model aircraft page 3; aerobatic turns.
Aerobatic turns.
Immellman turn(Half roll, half loop)
Named after the German world war 1 ace, though some people say the manouver he came up with in his Eindekker was something different to this. Anyhow it consists of rolling inverted and pulling out with elevator to level flight. An easy manouver with most aircraft given sufficient altitude at entry.
The variation on this is doing the half loop first. The only difference is as the aircraft approaches the top of the half loop airspeed is decayed and rolling response may be sluggish. A little added rudder can help sometimes at this point. Very similar is the overbanked turn where the aircraft is banked in excess of 90 degrees and pulled through with elevator, then banked to level again.
Stall turn
The aircraft is pulled vertical, airspeed is allowed to decay then full rudder is applied to yaw the plane through 180 degrees, all this is done with power on to keep the rudder effective with the propwash, how much power depends on the particular model. With the aircraft now pointing and moving downwards throttle is backed off to prevent
excessive speed build up and the plane is pulled back into level flight at the same altitude (hopefully) as it began the manouver.
TIP A burst of full power as you kick the tail over with the rudder can be effective. Also when the tail's really swinging back off the rudder a bit.
Flat turn
Or turning without any banking. This involves yawing the aircraft around using the rudder while stopping any bank creeping in by using aileron input. Your success at doing one of these manouvers largely depends on the aircraft design.
The less dihedral the model has the easier it is, (dihedral induces roll when rudder is applied).
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