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Need help sizing motor & equipment!

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Old 08-20-2005, 11:35 AM
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Half-A-Hec
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Default Need help sizing motor & equipment!

Howdy,


I must confess that I am a nitro breathing fool, but I would like to try my hand at electrics. Here we go right? The subject plane is a 24 oz. 1/2 A size float plane (flying boat) The wingspan is 44" and the kit calls for an .061 to .10 size engine. What do I stick in there if I want to go electric? What voltage, How many amps? What gear do I need? Why do zebras have stripes. Got carried away.


Thanks in advance


Hec
Old 08-20-2005, 03:36 PM
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lazyboyflyer
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Default RE: Need help sizing motor & equipment!

how much does the plane weigh and how much power do you want?
Old 08-21-2005, 09:56 AM
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Half-A-Hec
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Default RE: Need help sizing motor & equipment!

The plane weighs in at 24 oz. I want enough power to do some mild aerobatics. I would like long flight times though.


Old 08-21-2005, 07:31 PM
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bzpond
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Default RE: Need help sizing motor & equipment!

I believe you will need 100+ watts/oz for aerobatics. 150+w/oz for 3D. That being said, you'll need a 240 watt motor system. Do you want geared or outrunner? Li-poly batts will give you long flight times at a cost(charger).
Old 08-22-2005, 09:06 AM
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Half-A-Hec
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Default RE: Need help sizing motor & equipment!

Thanks for the reply,


I believed an outrunner is what I would like. Since the model calls for an .061 to .10 size engine and the engine is mounted over the wing on a pod I am limited to Prop dia. The largest diameter prop i could use would be in the order of 7". Anything larger and the prop will hit the top of the wing.

Here is a link of the model.

http://www.hacker-model.com/flboats/ospreyx.htm

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