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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: 4.0mm 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) 20
Total Length E (mm) 55
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Customer Data

Weight: 199g
Quantity: 
International Warehouse
stock
10+
USA West Warehouse In Transit View Item
USA East 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



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 Customer rated
523
crowns
  
 
Total of 103 discussions.
Jared  26 points - 5/11/2015
 
After some testing I like 12x8 prop the best with 4s lipo
Sabine  1 points - 4/26/2015
 
Hello, does anyone knows where i can find ceramic bearing for this motor ? Kind regards
Sabine  1 points - 3/27/2015
 
the described connectors are NOT 3.5mm bullet connectors.......
 greasmnky 693 points
No they are 4mm. The description is wrong.
Pranav  2 points - 3/20/2015
 
What esc should I use for this motor. A 60 amp or a 55 amp or 50 amp
 Obamjur 67 points
HK 60A BlueSeries ESC, definitely ! At least...
 Obamjur 67 points
A HK YEP 60A is a good choice too! It has a better SBEC !
Binoca  44 points - 2/10/2015
 
can i use with 6s batt 11x5,5 props???
 greasmnky 693 points
I don't think I would. I think that 6S is too high. They give you a recommended battery voltage for a reason, they are engineered this way. That high voltage is going to spin this motor really fast. Maybe 5S though.
BEST ANSWER CREDIT AWARDED
Customer Reviews
Overall Rating
Burdo
268 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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