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Jan 14, 2006, 01:21 AM
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J250 in a Cox Micro Warbird?

I just got a Cox Micro P40 Warbird. I will be using a 2 cell Etec 450mah Lipo. Should I just go with the stock motor, or use a Johnson 250 that I have? If I go with the J250, should I use the stock Prop?

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Jan 14, 2006, 01:43 AM
The Big Kahuna of Foam.
bkahuna's Avatar
The motor is not easy to replace in the cox planes. If you do attempt to replace it, make sure you note the down and right thrust of the current motor.

By the way... it is pretty fast with the stock brushed motor.
Jan 14, 2006, 01:45 AM
The Johnson 250 is probably overkill. But, direct drive on a 4x4 GWS prop would definitely work well.

-- Brian
Jan 14, 2006, 03:59 PM
Registered User
i have an m100 in my cox p40 and it works fine. i sue a gws 4.5x3 or even a 4 x2.5 will be fine.
Jan 15, 2006, 10:46 PM
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I flew the P40 today for the first time. I used the stock 130 and had to add a nickle to the front to make it balance. It flies fine, but it won't loop unless you put the nose down first. I'll fly it this way for a while, then I'll change out motors and put the J250 in it. By the way, what capacitors should I solder onto the J250?

Jan 15, 2006, 11:22 PM
Crash Master
Gene Bond's Avatar
.01mf (104 is a common code)

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