djjones69

Hey guys and gals,

I'm a complete newbie to electric flight so sorry in advance for my blatant ignorance. I'm developing a 250lb aircraft that will require approx. 5kW power from an electric power system. Any suggestions of components/major issues etc would be awesome. Doing some maths shows it may be running at 120amps for nearly fifteen minutes; can any speed controllers/batteries handle this kind of amperage? Are there any one-shot (i.e cheap enough to be disposed after use) batteries that will provide high capacitances, i.e. over 7000mAh?

At the moment i'm looking at the following spec;

3S4P of the following li-po packs;

http://www.hobby-lobby.com/flightpower.htm (bottom packs 7400mAh)

The XTRM 7035/08 - 4800 watts motor

and this speed controller;
http://www.e-flight.co.uk/shopexd.asp?id=438

Cheers for any help,


Dan

Technito20

I have quite a few electric motor and ESC recommendations for Large Scale planes. But to be quite honest I don't think there's a single RC scaled motor & ESC that's even close to powering a 250lb plane. Are you sure it's gonna weigh that much? It's very unlikey an RC plane will weight even half that. The heaviest I've heard of was about 92lbs. I think it was a custom made 44% Extra. It's about the length of an SUV and close to somewhere around a 200 inch wing span. If the plane you're building is more than double that weight then you may need a pilot's license

cyclops2

I am very suspcious of anyone who needs to find information on such a large plane with no previous experience.

Sounds like 911 plane job again, on a smaller size.

I will not help a request like this.

Rich

rmenke

My Feedback: (13)

Rich:

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Glacier Girl

My Feedback: (4)

Hmm, weren't you looking for a gas motor last October for the same bird?