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Old Dec 27, 2004, 04:09 PM
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Neumotor for Pattern Plane


Steve, what motor would you recommend for a .90 size pattern plane that will weigh about 9 lbs. Plan to use 8s-10s as required with 18-20" prop. Would like to see about 55 amps max.

Want something comparable to a Purple C5012XL.

I saw the specs for your 1515 2y but seems a little much for a .90 size plane. If reducing number of cells or prop size will allow use of this motor efficently, it could be the answer.

What are your feelings?

Thanks.

Jeff
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Old Dec 27, 2004, 04:32 PM
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I'm not Steve, but I'm betting the 1512/2Y would be a good choice with an 18" or 19" prop and 10S.

I'm also betting the 1512/3D would be good with 8S.

Wiz
Old Dec 27, 2004, 04:42 PM
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You'll want one of the lessor ratio boxes than the 6.7:1 for 10s and an 18" or 19" prop. My 1515/2Y 6.7:1 only draws 54 amps with a 22x12 prop. 5.2, 4.2, and 3.7 ratios are available, Steve can probably tell you which one you should use.

Norm
Old Dec 27, 2004, 05:20 PM
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Norm, what kind of cash outlay for that motor? It's not listed on the site?

Greg
Old Dec 27, 2004, 05:25 PM
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I bought mine from Steve Belknap at FlyDMA. It was $350.00 with the gearbox, plus $5.00 priority mail shipping. I'm using a Kontronik 55-10-32 controller with it.

Norm
Old Dec 27, 2004, 07:01 PM
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Jeff, running the figures in E-Calc, it looks like you'd pull about 54 amps with the 1515/2Y, 5.2:1 ratio, and a 19x10 APC-E prop on 10s3p TP6000 packs.

Norm
Old Dec 27, 2004, 07:04 PM
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no 10:1 yet?
Old Dec 27, 2004, 09:11 PM
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Quote:
Originally Posted by gkamysz
Norm, what kind of cash outlay for that motor? It's not listed on the site?

Greg
The prices are listed on this site:

http://www.flydma.com/motors/neu1506...tors&path2=neu

Chuck
Old Dec 27, 2004, 09:16 PM
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Quote:
Originally Posted by nxtdoor
Steve, what motor would you recommend for a .90 size pattern plane that will weigh about 9 lbs. Plan to use 8s-10s as required with 18-20" prop. Would like to see about 55 amps max.

Want something comparable to a Purple C5012XL.

I saw the specs for your 1515 2y but seems a little much for a .90 size plane. If reducing number of cells or prop size will allow use of this motor efficently, it could be the answer.

What are your feelings?

Thanks.

Jeff
Jeff,

Contact the distributer Diversified Model Aircraft for a recommendation on your application. If you want to run your own numbers there is a free calculator on the website.

http://flydma.com/flydmahome.asp

10223 Kaiser Place
San Diego, CA 92126
(858) 693-8188
Let1Fly@aol.com

Chuck
Old Dec 27, 2004, 10:40 PM
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The 1515/1.5/6.7 or the 1515/2/5.2 are the likely choices in the larger motor size. The 1512/2Y/6.7 would be the fit also and is shorter and weighs less. Not all the motors are listed in the motor program so check the product list also.

Steve
Old Dec 27, 2004, 11:42 PM
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Steve, how difficult is it to change gearboxes, say if I get a 1515/2 5.2 and then want to switch it to a 6.7 later? Is this something you would have to do at the factory?

Jeff
Old Dec 28, 2004, 01:16 AM
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Quote:
Originally Posted by nxtdoor
Steve, how difficult is it to change gearboxes, say if I get a 1515/2 5.2 and then want to switch it to a 6.7 later? Is this something you would have to do at the factory?

Jeff
It is not too tough--new pinion gear, carrier and planets. It can be done by the user--if you have the right equipment.

Steve
Old Dec 28, 2004, 11:30 AM
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Steve, is there any necessity to clamp the rear of these motors to keep the gearbox from unscrewing? Also, how often should the gearbox be serviced?

Norm
Old Dec 28, 2004, 11:36 AM
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Quote:
Originally Posted by Norm
Steve, is there any necessity to clamp the rear of these motors to keep the gearbox from unscrewing? Also, how often should the gearbox be serviced?

Norm
The gear box is attached with 4 screws through the gear box to the mounting plate.The gear box can't unscrew like some motors. As for lube--It would be a good idea to service every 50 flights or so when running at high power. A small dab of lithium grease is all thhan is needed--don't fill it up.

A rear support is a good idea but there is no need to clamp it.

Steve
Old Dec 28, 2004, 01:14 PM
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Just in case anybody is interested, Cambria Tool has made a front plate for their aluminum mount that fits my NeuMotors 1509 gearbox. I should be getting the mount in a few days. When I do, I'll post a pic here in this thread.

Wiz


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