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GWS Mustang

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Old 04-23-2003, 02:16 AM
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ml0126
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Default GWS Mustang

Need help. I fly glow and a IFO but no other electrics. I recently purchased a built but not flown P-51. It has a GWS 300 motor, an 8 cell Ni/MH AAA, 600mah battery pack, and a 9070 prop. The tail seems to slide from side to side when flying straight and I can do barrel rolls but it will not do a loop. It will get vertical , almost a hover, and then fall out of the loop. It seems not to have enough power to climb on over the top????? Is this normal????? Could the CG be to far rearward? The motor seems noisy. If I have to replace the motor, how do you get the old one out??????
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Old 04-23-2003, 12:31 PM
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Default I have 6 months on mine

Same combo, 8 cell, 9-7 prop. It took a couple flights for the motor to really spin up. I also retimed the motor. It involves turning the rear cap 3/16'' clockwise with a snap ring plyers. You do that because the motor is spinning backwards with the gear reduction setup. do a search on rcgroups.com for retiming GWS motors for more details.

Mine now will loop, roll, fly inverted for 4 minutes and 4 more minutes of touch and go type flying. couldn't live without it. I can take it down to the park and have a blast. The motor will get quietier after a few flights. good luck
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Old 04-23-2003, 08:49 PM
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Default GWS Mustang

Have you tried the 10x8 prop.Lots more PULL!
Have not had any trouble with looping the P-51 with 10x8 prop.
Now I have Razor 400 in her and WOW shes a screamer.
Have fun it's a great little plane.
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Old 04-24-2003, 01:47 AM
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ml0126
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Default P51

Thanks for the info. I'm going to try the timing trick, BUT......
how do you get the motor out of the Mustang?????
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Old 04-24-2003, 02:21 AM
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Default :confused: motor removal

Well, the motor gearbox may have been installed in two ways.
The builder may have just pushed the gearbox assy onto the mounting stick, which is a pretty snug fit. In that case a good pull on the gearbox may dislodge it. Or, as I did, the gearbox was pushed onto the stick and a small screw installed thru the gearbox and stick. To remove it, in that case, you would have to make a small hole in the top of fuse to get at it with a screwdriver.I had to do that when I installed the Razor motor, and the hole was easily done with a heated piece of brass tubing.
Worse case would be if builder epoxied the gearbox to the mounting stick
Hope this might help.

Good luck
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Old 04-24-2003, 02:22 AM
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Default chances are,

that you followed the instructions and ran 1 screw from the top to hold the motor on? Then poke a hole right where the screw is and spin it out.

Or extreme measures, go around the cowl area with a blade and cut it off to get access and glue it back on.

On the re timing thing, using the red dot for reference, move it clockwise past the closest crimp the same distance it is to start with.

I saw those razors in the store, I might have to get a fresh P-51 and go with one. good luck all.
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Old 04-24-2003, 09:36 PM
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Default P51

THANKS FOR ALL THE ADVISE...........
I'll head over to the internet to try to locate a few of the motors mentioned..............
PS..Will the Razor 400 or other 400 motor mount in the same way as the stock 300?
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Old 04-25-2003, 06:09 PM
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Default GWS Mustang

I can only say for sure that the Razor is a direct replacement for
the gws motor.
Very happy with this motor
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