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Old 12-24-2014, 11:18 AM   #1
davidchoate
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Default Guillows B-25 26.5" WS

I have converted several Guilows kits to electric with mixed results. I have much better luck with the 300 or larger series. The smaller kits are just too heavy to fly on a little brushed motor. I am active on the Guilows forum, and honestly, only a few guys are able to get the small ones to fly on electric power. Even to fly them on Rubber power takes alot of deviation from the plan,but anyone can put together a Hanger 9, or Alien plane,,and make it fly; guess I enjoy a challenge. Guillows does make a rather nice scale accurate kit. Alot of other kits, though easier to make fly, lack the scale appearance. Just My opinion. But anyway I have been wanting to do a multi motor plane for some time, and now have acquired the build skill to do it. I chose the B-25 cause it was meant to fly on twin .049 control line oeiginally,and so I figured it would be easier to convert.Also it has moveable control surfaces already on the plan. I need help in the form of information how to hook up two motors. I assume (unlike gas engines) the motors need only one throttle sticck as the outputs should be same unlike a gas engine wich needs to be have a carb set perfect to use a single throttle. A wiring scem. would help Me alot.


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Old 12-24-2014, 11:45 AM   #2
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Hi David and Welcome to Wattlyers, here is a nice motor that will work well for your plane from Heads up Rc, the recomended ESC is also given on the motor page,as well as the prop sizes, just use one lipo to feed the 2 -- 10 Amp Esc and Motors with, I would use a 3 cell 1200 mah lipo of about 30C rating,

http://www.headsuphobby.com/Power-Up...otor-E-536.htm



You will just need one lipo, use a small Y harness for the receiver to the 2 esc,

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Old 12-24-2014, 11:54 AM   #3
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The motors dont have to turn in Opposite directions, but you can make them do that and use counter rotating props, have the prop rotation turn from the top of the prop in towards the fuselage on both sides, are you using a 2.4 radio system ? if you are, i would suggest you use a UBEC because the 10 AMP esc only have a 1 amp bec, here is a 5 AMP ubec that will keep your plane safe, you will have to disconnect the normally red wire at the ESC to receiver plug to eliminate the esc bec to use the ubec.

http://www.headsuphobby.com/5-Amp-Un...?categoryId=-1

http://www.wattflyer.com/forums/show...highlight=ubec

http://www.wattflyer.com/forums/showthread.php?t=39483

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Old 12-24-2014, 05:13 PM   #4
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from what I have read on this plane, you might want to go with counter rotating props, as torque roll seems to be a issue. if you can stretch out the wing a little and make it a tad wider, that would be a good thing, say to 30"

http://www.rcgroups.com/forums/showthread.php?t=817971


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Old 12-24-2014, 08:20 PM   #5
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Thanks for the info. I have been dealing with Heads Up RC for a while already. I really love the B-25. It's always been one of My favorite Planes. I'd like to do it as a scale Model of the Doolittle Planes. You Know omit all the guns, and I will have to find some photos as there were so many variants ,and field modifications to that Plane.
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Old 12-24-2014, 08:35 PM   #6
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Originally Posted by davidchoate View Post
Thanks for the info. I have been dealing with Heads Up RC for a while already. I really love the B-25. It's always been one of My favorite Planes. I'd like to do it as a scale Model of the Doolittle Planes. You Know omit all the guns, and I will have to find some photos as there were so many variants ,and field modifications to that Plane.
I like the B-25 too Its a nice plane, Jeff is great to work with at HURC, I have been buying from Jeff since he was on EBay, Lots of Sharp people here on Wattflyers, feel free to ask lots of questions Thats the way that I learned Take care and have fun, Chellie

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