AoI for a Flari Swallow

Jan 18, 2004 3 Replies
B

Hi,



Does anyone here know what the angle of incidence should be for a Flair Swallow ? (F3A pattern model with NACA-0012T airfoil section). I would have expected a 0-0-0 setup (engine, wing, tp), any comments ? As completed, without any shimming, I have the engine set to the same incidence as the wing, with the tail set to about -0.75 degree (ie wing and engine positive wrt tp).



The instructions don't mention any angles of attack but they do say that a degree or so of downthrust and rightthrust is required which is easy to add via washers under the engine bolts. Should this be measured wrt the tp or the wing ?



If anyone who's flown one remembers the numbers they ended up with then I'd be grateful for any advice.


Thanks,


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M

downthrust and rightthrust are also dependen on you engine and prop. Mine was downthrust 2 degrees and rightthrust 2 degrees Saito .91. unfortunately with the saito .91 the plane is a bit underpowered. Noticeble in the uplines. better would be a YS .91 or a saito .120 or osmax .91FX Note: The original OCG is not correct. See the flair's website for this. Too far forward. Note2: if you flying at an altitude of 6 feet inverted: do not try to make a loooping. The trurn radius is a bit more then 6 feet :...-(

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S

I have done that! :-(

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