Re: Electric for large Planes

"Glenn Jacobs" <jakeinhartsel@[EMAIL PROTECTED]
> wrote in message
news:xP6dnaM9No7nDanVnZ2dnUVZ_umdnZ2d@[EMAIL PROTECTED]
| I plan to start a 1/4 scale Stearman (Boeing Kadet) this Fall or
Winter. I
| intend to model the plane flown by Johnny Vasey in the 1949 National
| Acrobatic Champion****ps. I will use the Barron plans for the basic
plane.
|
| My question is the practicality of using electric power for this
airplane. To
| make it even more complicated as I live at 9,750 feet (2972 meters)
which
| requires significantly more power.
|
| Is there a conversion formula for Electric Versus Gas? How about
relative
| expense? Certainly not having to clean up the plane after flights is a
plus,
| but a negative is the time to recharge batteries.
|
| Any thoughts?
|
| JakeInHartsel

I have flown a Goldberg Electra sailplane at 9,000 + and was suprised
how well it flew. It flew faster in relation to the ground but otherwise
no different than at 3,500 feet. The electric motor does not lose power
in higher elevations as does glow or gas engines, which is a plus. A guy
in our local club uses battery packs that cost almost $300.00 a piece
and he has three of them for his aerobatic plane. The balancing charger
he uses is expensive too.

You might contact Hobby Lobby as they seem to be going more to electrics
now.  http://www.hobby-lobby.com/

Every one I know here in the Texas panhandle uses the maximum (or over)
recommended engine size because of the power loss with altitude on glow
engines

-- 
Anyolmouse


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