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  Item found in the following categories;
> Electric Motors > Outrunners by size > 45 to 50mm
> Electric Motors > NTM Series > 42mm

  RATED:

NTM Prop Drive Series 42-38 750kv / 785w

NTM Prop Drive Series 42-38 750kv / 785w
NTM Prop Drive Series 42-38 750kv / 785w

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 engineers check and balance each motor before shipping to the HobbyKing.com warehouse.
 
Specs:
Model: NTM Prop Drive Series 42-38 750kv
Kv: 750rpm/v
Max current: 55A
Max Power: 403W @ 12v (3S) / 785W @ 15v (4S)
Shaft: 5mm
Weight: 169g
ESC: 60A
Cell count: 3s~4s Lipoly
Bolt holes: 25mm
Bolt thread: M3
Connection: 3.5mm Bullet-connector

Prop Tests: 
13x10 - 11.1V - 344W - 31A - 1.79kg
13x10 - 14.8v - 740W - 50A - 2.8kg
14 x 6 - 11.1V - 403W - 36A - 2.23kg
14 x 6 - 14.8v - 785W - 53A - 3.05kg

Note: An accessory pack is available for this motor. Please see the related items below.



PRODUCT ID: NTM4238-750

This product available from a warehouse near you!

Kv(rpm/v) 750
Weight (g) 169
Max Current(A) 55
Resistance(mh) 0
Max Voltage(V) 15
Power(W) 785
Shaft A (mm) 5
Length B (mm) 38
Diameter C (mm) 42
Can Length (mm) 15
Total Length E (mm) 55
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Customer Data

Weight: 199g
Quantity: 
International Warehouse
stock
10+
USA West Warehouse In Stock View Item
Price $25.99

acc.
  • NTM 42 Carbon Fibre Motor Mount

    Combo Price: $4.45   IN STOCK

  • NTM Prop Drive 42 Series Accessory Pack

    Combo Price: $1.95   IN STOCK



Further discounts available for registered & logged-in customers.
 Customer rated
523
crowns
  
 
Total of 96 discussions.
Krazyaz  14 points - 7/16/2014
 
How can I put the shaft so it is longer on the other end please anyone
 .Aus. 2 points
It makes more sense when you see the motor and prop adapter together: target=_blank>
 .Aus. 2 points
Here's a second photo: target=_blank>
greasmnky  594 points - 6/2/2014
 
I used this motor in my d-y-n-a-m SU-26 plane when the original motor died, it worked perfectly. This motor is a little larger diameter, but gobs more power. I also used the same 4S 2200mah battery, and a 13x8 Master Airscrew 3 bladed prop. The motor was pulling about 45 amps and 600 watts. The original X mount even worked for this motor, I just had to put the screws for mounting the x mount to the plane in the mount before attaching the mount to the motor. an excellent d-y-n-a-m replacement and more power! This would probably work for other d-y-n-a-m planes as well.
anjas  1 points - 5/31/2014
 
great motor in my trainer..this my video http://www.youtube.com/watch?v=3EKU0jrh4cg
 Nander 54 points
nice video !!
 Andreas 3 points
lol anoying trailer.....
haivei  12 points - 4/27/2014
 
i just made a octocopter with those motors, the motors are running fine with 4 x 4s 45-90c LIPO's and RED brick 70A ESC's .. the bad part is i didn;t configured ok the FC... here's the awfull video of the crash https://www.youtube.com/watch?v=PDgn9AIuk1c
 haivei 12 points
update... this is the new video address youtube.com/channel/UCL2iax67JafzWVL2LQTWZNw
flyopa  44 points - 4/26/2014
 
Engine has lots of power, however, after a few minutes a lot of vibration, after disassembly shows the fit of the front bearing on the shaft too broad. The only thing you can do is to eliminate through doing. Loctite on the shaft clearance Remains a source of concern, pity that this defect occurs* This engine is not recommended.
Customer Reviews
Overall Rating
Burdo
266 likes
Value
Quality
Like it?
Very impressed with this motor. Very well made and no slop or bearing noise to speak of. I've installed it into a CMP cessna 182 weight approx. 2.7kg. Running on 4S2P 2650mah 20C Flightmax, Otter 55A ESC using a 3 blade 12x8 APC prop (no thrust measures as yet but I would guess approx. 2.5kg of pull). The following is a reading using fully charged packs for about 30secs. I will update the review after my first flight. Wp 716.1 Ap 52.12 Ah .238 Wh 3.2 Vm 12.73 Great motor at a great price. You must buy the accessory pack as I tried fitting another prop adapter to it but they are completely different to the SK series motors.


2 comments. Reply..

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Overall Rating
Chewbaco
29 likes
Value
Quality
Like it?
Awesome quality for the Price...Used it on my .40 class Piper Cub (Balsa) lots of power stays cool!


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Overall Rating
Eloute
1 likes
Value
Quality
Like it?
Im using this motor with a HobbyKing 60A ESC, and a 12x6 2 bladed prop with power coming from Turnigy 20c 3300 lipo. I have it mounted on a Hangar 9 Cessna 40 and although it does fly, it certanly struggles to get off the ground and is not very fast in the air. After 7 minutes of flying time the battery is very warm.


6 comments. Reply..

Overall Rating
Glen
11 likes
Value
Quality
Like it?
I am very satisfied with this motor. I have installed it in a scratch built,68" span Ryan Navion. The motor is spinning a 13x8" prop on 4 cells. Plenty of power. I am using a 60 amp esc. This is a great value from Hobbyking. Motor runs very smoothly and is quiet. I plan to buy another. Quality is outstanding.


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Overall Rating
kinshas
23 likes
Value
Quality
Like it?
Yes, not so bad! The quality is really good, no any magnet was loose. Weight of motor is 205g with the accessories.


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