RE: Calling all Aerodynamicists !
Andy, I'm going to check out that video later. Sounds interesting.
So it looks like there will be two Deceptions, a D10 and a D60, that will be built with a flat top wing as per Jim's instructions (we'll disregard those on the plans although I think the MAN plans give the right dimension for a flat top wing).
On another note, I've determined that in order to have the wing (and stab) incidence line parallel to the ground when resting on the gear, I'm going to have to move the FW forward by 3/8" (10 mm). This is in part due to the fact that I decided to use slightly larger main wheels than the equivalent 60 size would use (using 1-3/4 in instead of the scaled 1-1/2 in) and the mains layout is now fixed.
The additional 10 mm is the differential between the retractable gear rotation points (pivots) with the nose gear pivot sitting higher off the ground than the mains (4-1/8" nose & 3-3/4" mains). Per design, the model provides a 4" space in the nose gear bay, putting the pivot at 3-3/4", so an additional 3/8" will be required. Not wanting to modify the design of F2 and cut a notch into the belly pan and wing I've decided to move the FW forward.
This gives rise to a couple of questions:
[ul][*] How should the position of the CG be affected (if at all...) by this increased nose moment?[*] How will the increased nose moment impact the dynamics of the aircraft in flight?
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I suspect that I'll end up putting the battery in the fuse just forward of the rearward servo quartet or, if necessary, just aft of F3 above the pushrods.
Looking forward to your comments guys!
Thanks, David.