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Jul 28, 2003, 08:10 PM
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Best motor for Discuss launch glider conversion?


I am looking for the best motor and batery combination to convert a crashed Enigma DLG to electric. About 10 oz former all up flying weight - tail, boom and wing are fine. I will build the fuse to fit the best motor. Any idea?
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Jul 28, 2003, 09:06 PM
A very good solution is the Hacker B20 L15 with the Maxon 4.1:1 planetary gear box. I have one installed in a home brew pod and boom fuse with a 59" Gee Bee poly bagged wing. Very good performance!

The RTF weight of my plane is 27 oz. with an 8 cell 1100 mah pack.

There are other good solutions, I'm sure.

Sierra Gold
AMA 12351
Last edited by sierra-gold; Jul 28, 2003 at 09:08 PM.
Jul 28, 2003, 10:24 PM
As long as you are young you can Discuss launch but
I can't get no power to hand launch don't throw a shoulder
out joint. Take care
Jul 29, 2003, 01:50 PM
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Neil Stainton's Avatar
I've got an Enigma DLG and I have been thinking of the lightest power option - not necessarily the best, but good enough to get it to altitude, without adding too much weight:

Razor RZ-400 motor
Graupner CAM 4.7x4.2 folder direct drive
2S1P Kokam 340HD cells
CC Phoenix 10 ESC

The whole power system should only weigh about 60g, your existing batts probably weigh 30g, so the weight would only go up by 30g ~ 1oz!

Not cheap though.

Ooops, I've just noticed that MotoCalc estimates about 10A, which is over the 6.8A 20C rating of the cells. You may have to cut down the prop a little and use the Phoenix's lowest advance setting to get the current down to an acceptable level.

Neil.
Last edited by Neil Stainton; Jul 29, 2003 at 01:54 PM.


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