RCU Forums - View Single Post - Yellow A/C Spitfire Retracts and engine.
Old 06-17-2008 | 10:14 AM
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Red B.
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From: Jonkoping, SWEDEN
Default RE: Yellow A/C Spitfire Retracts and engine.

ORIGINAL: YellowAircraft
Hi,
I'm curious about this because I'm not sure what you mean by 96 degrees. Do you mean that the unit is supposed to extend beyond 90 or less than 90? If it goes beyond 90, what would that look like? Would that have to do with the dihedral of the wing and the gear pointing straight down in spite of it? Thanks in advance.
On most versions of the full scale Spitfire the U/C swings trough 96 degrees, i.e., 6 degrees more than 90 degrees.
The reason is that that the U/C has quite a lot of rake back when retracted and when extended the U/C legs are almost vertical when viewed from the front. This together with the dihedral of the wing requires a 96 degree retract angle. Some of the American kit manufacturers, e.g., Pica, Great Planes and Dynaflite use(d) 90 degree retracts and a non-scale U/C position and geometry. I don't know about Yellow Aircraft.