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Old Nov 15, 2001, 04:19 PM
Registered User
Ireland
Joined Apr 2001
4,032 Posts
robbe geier "nurflugel" questions

I was given the wing part of this glider and am now designing a "fusselage box" that i mount under it (kinda like the original i asume)

i have a few gestions

cg; where measured form the center of the wind leading edge?
deflections ; how mutch up dows for airlon and elevator function?
trust line ; if i use a reference line form both the center of the leading and trailing edge, what angle should the "firewall" be?

i found the folowing parts that i intend of using

servo's; fut 3001 (2)
batery; 8 sanyo 2000 mah (gray silver with orange numbers)
esc; shulze slim 25
motor; robbe planeta gear speed 400 part # 4185
prop; aeronaut 8*5 white folding
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Old Nov 15, 2001, 06:06 PM
Registered User
Bristol, England
Joined Aug 2000
2,077 Posts
Yes! I built a Geier E when I lived in Kerkrade.

Mine had 8 subCs and a Graupner Jumbo 550 which I tried both DD and geared, I settled for a 7x6 on DD in the end. I don't know why I still have the motor mounting bracket.

The geared 400 is not enough for this model (particularly with subCs). Unfortunately the plan was passed on with the model, but if I was to do it all again, it would probably get a Speed 600 Race 8.4v with something like a 7x5 pusher.

Goes really well off a short bungee.

Happy flying, John
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