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Old 01-21-2010 | 12:32 AM
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doxilia
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Default RE: TOC CAP 21

UStik,

More great info!

Now that you remind me, I recall seeing that German site but never noticed the CAP's. You're right that the smallest one should fit the bill. However, I believe that, being designed for glow, they might still be a tad on the heavy side ("overbuilt") for my electric purposes. Besides, part of the fun is re-designing it and building your own kit! Nonetheless, great options. The Canopy might just fit the bill! [8D]

So I sized things to my target scale (80" span/62.6" length - might stretch it a little bit for an aspect ratio of 1.25 - i.e., 64" fuse length) and started putting some lines to paper. Very early stages but here's a draft fuse side view and wing/stab planforms. BTW, I used the E168 airfoil that you recommended. The GP model also has a very similar airfoil although it is not flat in the rear 1/2 of the airfoil - I'm not sure what airfoil is being used there.

Here are the current specs of the model:

Length = 62.6" (1590 mm)
Span = 80.0" (2032 mm)
MAC = 11.84" (300.7 mm)
Area = 946 sq in (61.0 dm^2)
Loading = 23.1 oz/sq ft (70.6 g/dm^2)
Weight = 9.5 lbs (4309 g)
Engine = .91 cu in (15.0 cc)
Motor = 1900-2100 W (8s/75A/17x8 - 18x10)

Some formers will follow.

David.

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