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Old Feb 10, 2016, 07:38 PM
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What motor and ESC combo for 56" Bi Plane 6lbs

I am looking for some suggestions on Motor and ESC combo for my 56" Bi Plane roughly 6lbs with no electronics. Rated for glow .46- .60 size
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Old Feb 10, 2016, 08:38 PM
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To get useful advice you need to advise:
1 the max prop diameter you are able to use with ground clearance that you're comfortable with.
2 whether you are willing to use any battery voltage or have constraints on batteries, eg 4S only, not 5 or 6s
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Old Feb 11, 2016, 07:29 AM
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Check the recommended stats for the sig hog bipe. It's about that size.
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Old Feb 11, 2016, 01:57 PM
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Bipe conversion

A power 42 from eflite
Or any motor putting out at least 900watts of power
Watts per pound is the easiest way to figure this out been converting gas to electric for 8 yrs
6 lbs 600 watts
100 watts a pound for scale flight
200 watts a pound is good for acrobatic
And some 3D
Go 250 watts a pound on heavy 3D planed
It's easier than you think
100 watts a pound
Good luck
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Old Feb 14, 2016, 11:17 AM
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Quote:
Originally Posted by stagger123 View Post
A power 42 from eflite
Or any motor putting out at least 900watts of power
Watts per pound is the easiest way to figure this out been converting gas to electric for 8 yrs
6 lbs 600 watts
100 watts a pound for scale flight
200 watts a pound is good for acrobatic
And some 3D
Go 250 watts a pound on heavy 3D planed
It's easier than you think
100 watts a pound
Good luck
200 watts per pound is for a fully aerobatic plane of unlimited potential.
150 watts will do 3D.

If he's flying a sport plane in the Sunday flier range, 110-125 watts per pound will do average aerobatics. And if he flies on the wing, rather than the prop, 125 watts will be plenty of authority for every day flying.

A lot of it depends upon personal flying style. (Recall that 30 years ago, 2 strokes made about 1/2 the thrust at the prop that they do today.)
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