NTM Prop Drive motors are rock-solid performance outrunners with tight windings, quality bearings, correctly rated magnets, balanced stator and flux rings plus they are QC checked at 14 points, from material processing all the way through to final dyno test.
Because we design and build these motors completely in-house (from 3D/2D drawing to materials sourcing, machining, balancing, final assembly and dyno) we can completely control production and ensure product consistency from design right through to shipping the product to you. The removal of middle-men has meant we can drive better value to the market and retail these motors at factory(our) prices! All performance figures are real and tested on our own motor dynos.
Our QC engineer checks and balances each motor before shipping to the HobbyKing.com warehouse.
I bought this motor to replace my Radian Pro sailplane motor. I was running a 11x6 Gruapner folding prop on the stock Radian motor with 3s. Will the 11x6 Graupner folding prop be ok with the motor on 3s? I have a 60a esc also.
I have this motor mounted in a Fun Cub with a 60A Turn-Plush ESC and 3S 2.65A 25-50C power pack. I tried different props and have settled on a 10x5 for first flight. I have seen some refer to the use of a 40A ESC but my tests showed that I could exceed easily 40A with this prop at NEAR full throttle. My coice for the 60A esc aligns with OEM spec and for sure this plane will not need more than 280 watts flying in some wind.
Prop tests I ran revealed this prop to be the best choice versus the 10x7 however an 11x5 may work out with a little care on the throttle.
10x5 TP pulled 48A at WOT at 12.0vdc (576watts) ran it till the battery was down to 10.1vdc varying current between 18A and 25A with bursts to 38-40A every couple of minutes. Took 10 minutes
10x7 APC pulled 55A at WOT at 12.0vdc (660watts) started to get WARM and exceeded max allowable amps so NO-GO!!!! I shut it down immediately to 1/4 throttle to cool. It never really got so hot that you could not touch it but it would have had I left it at WOT for more than 5 seconds.
9.5x7.5 PZ prop pulled about the same maybe a tad higher than the 10x7 so I scrapped this idea immediately.
11x5 TP pulled 51A at 12.1vdc at WOT (616watts) ran it till the battery was down to 10.3vdc varying current between 17A and 25A with bursts to 38-40A every couple of minutes. Took 9 minutes. This was really making some wind so I may t
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1 thumbs up!
For fast models up to 1kg, not the realy good one. I flown it in my F8F Bearcat EP (920g) with 3s3000mAh with an 9x6 Graupner Camprop, ok it was fast, but after 5:30 minute the Lipo was empty. So...I think, for fast models is the 8x6 the maximum. With an 9x5 or 10x4 the speed is only good for better Parkflyer up to 1kg and than you can fly much longer time
This is a very good motor. It is strongly recommended to all. You will not regret it.
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Placed a pair of these motors in a 1.3m B25 kit from HK. Using 3blade 8x6 props and running twin 1800 nanotec batteries, I can fly around the 6 minute mark. Great combo with ooodels of power. Half throttle will give you great scale like flying, full throttle unlimited climb. Have the same motor prop and battery combo in a P47 from HK , Wild !!!! a bit too fast but I like it because I have been mainly flying jets.