RCU Forums - View Single Post - Biplane Wing Incidence - Well kept F3A secret or nobody knows for sure.
Old 04-08-2016, 02:26 PM
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drac1
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Originally Posted by Henning


Hi,


The Ascent BIP had the maiden flight today. 4 clicks of up elevator and I was able to fly knife edge both ways without any couplings. This has never happened to me before on a maiden flight. My Acuracy mono took 100+ flights of trimming to have it fly mix free.


The incidence are as per the drawing. Low wing and motor have 0 degree to the fuse datum line. The top wing -1 degree and the stab 0.5 + (lifting the nose). I used 5000 packs today but will use Hacker 4150 packs at 900 grams once they arrive. The total wight will be 4800 grams. Looking forward to fine-tune the model and start practise P and F17.


Br,
Henning
Looks good. You did a good job of covering the fuse instead of painting.

I think positive incidence on the stab would drop the nose not raise. The 4 clicks of up elevator indicates that the stab incidence needs to be reduced. Maybe 0 degrees would be better.