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All Forums >> Electric Aircraft Universe >> Foamies! - RC Electric Foam Aircraft >> GP Slinger , FMA Razor
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GP Slinger , FMA Razor - 11/7/2009 3:47 AM   
Flight Risk



Posts: 332
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Last Login: 11/17/2009
From: Rocky Flats, CO, USA
Status: offline 		Hey I just picked up a new/old 48" FMA Razor, and have been trying to research it.
Finally I came across this Great Planes Slinger and it sure seems like the same plane, except for the servo covers.
http://www.rcuniverse.com/magazine/article_display.cfm?article_id=365
Then I noticed a link at the bottom to FMA.
Did GP take over FMA products?

Also, I have only flown gear drive tractor motors before, with prop savers. How do you guys with direct drive motors attach your props, and not worry about bending/breaking the drive shaft? I would think that prop savers wouldn't work on these high speed motors.
Any suggestions on a motor that I could use with my Castle Creation Phoenix 25? I used it with a Himax 2025 which recently bit the dust.
I guess some of you are using outrunners, on Zagi's and Strykers. Do they make more sense than an innrunner?
I see the motor is supposed to be attached with a zip tie, but shouldn't a motor back there need a heatsink? How would you attach an outrunner in there?
Thanks for any ideas.

Rod S

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RE: GP Slinger , FMA Razor - 11/13/2009 4:52 PM   
b16a2sir


 

Posts: 240
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Last Login: 11/21/2009
From: Fort McMurray, AB, CANADA
Status: offline 		I had the slinger years ago. The zip ty held untill i put 4s in there and then the motor would shake under full power. An outrunner would be tough to do, but is do-able.
I would stick to an inrunner, the motor will get enough cooling from the airflow. a standard prop adapter should work fine, which clamps or set screws to motor shaft. Bending the shaft is always going to be a risk, but the prop is small so should be OK.

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RE: GP Slinger , FMA Razor - 11/14/2009 6:04 AM   
Flight Risk



Posts: 332
Score: 100
Joined: 6/7/2003
Last Login: 11/17/2009
From: Rocky Flats, CO, USA
Status: offline 		Yea, thanks for the reply. I will plan to use an inrunner and not worry about the shaft.

RS


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       Post #: 3

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