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Old 04-11-2015 | 02:20 PM
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marmalade1
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From: Wheaton, IL USA
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Overall I'm very happy. The die-cut parts were a bit of a challenge, but more than likely, it was my impatience that led to some imperfect alignments early on with the fuselage. The covering was easy and honestly, no part was complicated. The cowl was by far the biggest frustration, but I'm happy with the result. I expect I'd do it a lot faster next time; the cowl alone was weeks of work. The fuse and wing (besides the warp and unwarping) were quick builds, it's the finishing that takes me the longest.

The prop I'm using is a Dynathrust 12x8. The testing in the garden just now achieved 10,500 RPM with an idle of 2300 RPM. I'm concerned that I'll not get much vertical performance as a full-throttle test resulted in gravity winning. Perhaps I'll switch to the APC 13x6.

The AUW was a hefty 6.9lbs. A full 1/2 lb overweight despite my LiFe battery and 3 mini-servos. Likely culprits for the over-weight plane are me using too much CA (2oz total used) and the hefty engine (23oz). The added weight pushes the wingloading to about 25oz/sqft - war-bird territory.

I was careful to follow the CG guidelines placing the CG on the front edge of the main spar. Used my 'digital' CG machine (read: fingers).
The control surface throws were set as suggested in the manual for both high and low. The flaps were set as between the suggested high and low settings. I'm keen to experiment with the flaps.

For grass, my biggest concern is the 2.5" wheels barely peek out of the wheel pants. Testing around the garden revealed the plane is keen to nose-over. I'll have to head to the field with the runway to minimize aggravation.

I'm excited to maiden her!

PD.

Next: Maiden.