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Dec 20, 2005, 09:00 AM
Registered User

Help! power system set up for 3m sailplane


As a returned sailplane flyer, I would appreciate your views on the following set up which I propose to use.

criteria sought:- Brisk climb about 2000fpm (or better)
Current draw within capability of ESC I have at present
Airframe Top Model "Diva" converted to electric Thermik Dream (NSP) ??
4 servo wing total auw. weight 100oz.
Motor Hacker B50 S 6.7 to 1 gearbox
Cells IB 3800 up to 12 cells
ESC CC phoenix 80
Radio JR 3810 (8103)
Prop haven't bought one yet !

Questions Prop to use
RX pack or BEC gadget (my view is RX pack but could be convinced otherwise )

Current competence level:- I dont usually break them flying, "Hanger Rash "is more of a problem

I would welcome any advice.
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Dec 20, 2005, 10:28 AM
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Andy W's Avatar
https://www.rcgroups.com/forums/showthread.php?t=244143

This really belongs in the Electric Sailplanes forum.
As to your setup, what wind B50 do you have?
..a
Dec 20, 2005, 10:45 AM
Registered User
B50 11s 6.7 : gearbox
Dec 31, 2005, 11:10 PM
BANNED!!!
soholingo's Avatar
b50 11s on 12 cells go with an 18.5x12 prop or even a 20x13
Jan 04, 2006, 04:54 PM
Registered User
Thanks Soho,
I have read some of your posts and seen your recent trauma, I hope you have recovered your good spirit, usually evident here.
Thanks again, I will look out for the 18.5 prop initially,

Assembling a Riva Silver S for some "slow" flying has got in the way of the "thermik dream" but it should be started next week , I have managed to get most of the parts except prop and spinner.


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