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> Electric Motors > NTM Series > 42mm
> Electric Motors > Outrunners by size > 35 to 44mm
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NTM Prop Drive Series 42-48 650KV / 1295W

NTM Prop Drive Series 42-48 650KV / 1295W
NTM Prop Drive Series 42-48 650KV / 1295W

NTM Prop Drive motors are rock-solid performance outrunners with tight windings, quality bearings, correctly rated magnets, balanced stator and flux rings, tool-steel shafts 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 warehouse. 
Model: NTM Prop Drive Series 4248 650kv
Kv: 650rpm/v
Turns: 7T
Max current: 70A
Max Power: 1295W 
Shaft: 5mm
Weight: 243g
ESC: 60~70A
Cell count: 4~5s Lipoly
Bolt holes: 25mm
Bolt thread: M3
Connection: 4mm Bullet-connector


Kv(rpm/v) 650
Weight (g) 243
Max Current(A) 70
Resistance(mh) 0
Max Voltage(V) 19
Power(W) 1295
Shaft A (mm) 5
Length B (mm) 48
Diameter C (mm) 42
Can Length (mm) 30
Total Length E (mm) 70
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Customer Data

Weight: 279g
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Price  $29.99

  • NTM 42 Carbon Fibre Motor Mount

    Combo Price: $4.45   IN STOCK

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 Customer rated
Total of 101 discussions.
Luis  1 points - 9/30/2015
Which is average plane's weight this motor could handle???
 Ronaldo 43 points
I fly a Slick 540 50E with this motor on 5S with insane power. For a sport plane I think you could go comfortably to a 60 size. I think my plane weight is around 2.2kg. Build thread and video
John  2 points - 9/30/2015
Do I have to disassemble the motor to add some glue to the magnets? I would like to use a toothpick to add a tiny amount of glue for insurance, but I am uncomfortable disassembling the motor. Also, JB weld makes a cold weld, metal infused epoxy that is designed to withstand up to 550 F when fully cured. Would this be a good choice for gluing/reinforcing magnets?
 Ronaldo 43 points
My tips for re-gluing here: ****rcgroups****/forums/showthread.php?t=2357100
Mark  1 points - 9/16/2015
I have purchased 3 of these motors . All 3 have had the magnets move , they have noisy bearings , and the final straw , one of the grub screws holding the shaft was stripped and eventually the rotor section came loose . Good value if they did not have problems .
 Ronaldo 43 points
My tips for re-gluing magnets (replace the * by
colin  2 points - 9/8/2015
is this agood choice for a PC-6 arf w/s 1600mm weight 2.8-3-2kg .46 size or are there better choices out there , sorry only new to elec so any help would be greatly appreated. at the moment comaring it to the NTM 42-38-750 and 2 Trunigys G46 670kv or the 550 Kv.
Orel  1 points - 8/31/2015
hi I think that the 14x7 size prop is a too small to this motor witk 5s lipo battery. who is tried to fly with 15x6 prop, but with 5cell battery not with 4s..? thanks
Customer Reviews
Overall Rating
Like it?
I bought this motor as a replacement for a 4250 SK 650kv. I am running it in my 63" P-51D with a 13x8 prop 5s 5000mah 30-40C Lipo. I get excellent performance. Put it on the box and it ran at 1375 watts 77amp draw at full throttle. It seemed fine. It didnt get all that hot and I am comfortable wit these numbers. However this motor lacks a prop shaft. Lucky for me I have access to a full machine shop (metal lathe and Mill) and I was able to myself a prop shaft from 6061 Aluminum to match the plane. BEAUTIFUL. Couldnt be happier and will certainly buy another soon.

3 comments. Reply..

Overall Rating
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Motor looks great, but it doesn't come with prop drive or mounting plate and attendant screws. I think you should mention that in the description. Also the prop drive is 3 screw mounting so the mount will have to be peculiar to this motor. I can't use my other Turnigy prop drives.

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un mostro di compatezza di prestazioni elevate

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Overall Rating
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high quality motor. Strong magnets and runs smooth. 13x8 APC-E prop with 5s 4000 packs, almost 1000watt 13x10 I will try soon. top motor for a very fair price

8 comments. Reply..

Overall Rating
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Engine excellent workmanship, Silent bearings, tested with 15x8 prop and lipo 4500 mha 4 s 3.2 kg max pull shot.

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