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What servos for 71" Ultimate

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Old 08-09-2003, 08:56 AM
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madhun
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Default What servos for 71" Ultimate

What servos do I need on the ailerons of this bipe (one servo per ail.)?. Weight about 17lb, engine DA 50, hard mounted. Weight and price is an issue, and because of the latter I'd prefer Hitecs. The elevator will take 2x625 and rudder 5945.

Thanks Chris
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Old 09-06-2003, 10:14 PM
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flytheedge
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Default What servos for 71" Ultimate

I have a Goldberg Ultimate and I HAD to go to twin ailerons. The bellcranks in the wing weren't strong enough and binded in high G maneuvers. Thus, the ailerons vibrated and was not easy to control. I used Hitec 615 MG servos on both aileron servos, that I had to modify, and 615 MG on the rudder and elevator with a 6.0 volt battery pack 1100 maH. You might end up going to more expensive servos though. Call Hitec and see what they recommend. You'd definitely want something with Metal Gears and possibly digital servos. their weibsite is www.hitecrcd.com.
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