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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
International Warehouse
Price  HKD232.72

  • NTM 42 Carbon Fibre Motor Mount

    Combo Price: HKD34.53   IN STOCK

Further discounts available for registered & logged-in customers.
 Customer rated
Total of 78 discussions.
veffting  11 points - 11/20/2014
Hello, which indicated the propeller to a glider weighing 3.5kg and with baterria of 18.5V?
odair josé  1 points - 9/13/2014
which propeller should I use this engine with which esc?
 sidd232 1008 points
14x8 on 4 cells, 13x7 on 5 cells, play safe with esc and go for 70 amps
george  6 points - 8/13/2014
Would this motor work with 4s 4000 battery and 14x8 prop on 108000004 - DHC-2 Beaver Balsa Super Scale 1800mm wing span, 2500-2600g.. any suggestions?.. : 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
 Novice-9 61 points
hi George, I have been using this motor for a while on a voted weight is 2100gm with a 14x8 turnigy wood prop. I get nearly 1000 watts straight vert climb and drawing just over 65amps, this with a nano tech 3300 4s. I bought two more for a twin engine cessna 1800 wing span, gas to electric conversation running a 13x8 3 blade. bench test produced about 800 watts on 4s. Hope that helps
jerome  3 points - 7/27/2014
Bonjour, idem pour moi avec batterie en 5s aimants dé*coller temps de fonctionnement moteur 9 secondes du à* une chaleur importante controleur 80 amp HK et hé*lice 15x8 sur motoplaneur, avez vous trouvez une solution passer en 4 s? Ou diminuer la course moteur,?
 LE GUENNEC 3 points
j'ai beurré* d'araldite tous les espaces entre aimants sur le dernier moteur que j'ai acheté*. Du coup, à* ce jour je n'ai pas eu de dé*collement mê*me en 5S. Je croise les doigts !!!
LE GUENNEC  3 points - 4/30/2014
Dé*jà* 3 fois que j’*achè*te ce moteur et à* chaque fois les aimants se dé*collent si j'utilise une batterie 5S (avec hé*lice 15x8). Pourtant les bobinages ne surchauffe pas (pas de trace d'é*chauffement). Maintenant je recolle les aimants avec de la colle é*poxy mais il faut faire attention en vol! Sinon j'en suis satisfait pour son faible prix et son excellent rapport poids/puissance.
 Robert 3 points
Il faut profiter du fait que ce moteur est livré* avec des courbes complè*tes pour bien choisir son hé*lice. A mon avis, 15x8 n'est pas adapté* à* ce moteur en 5S. Au delà* de 45A (en 5S) le rendement chute, et on dé*pense de la puissance pour rien. J'ai testé* diverses hé*lices, le bon rendement en motoplaneur est obtenu avec une 15x6 (repliable Aeronaut CamCarbon) en 5S : environ 42-45A, poussé*e statique entre 3.2 et 3.5 kg ! Excellent, et sans problè*mes avec 3 moteurs utilisé*s. En 4S il ne faut pas dé*passer 35A sinon le rendement se casse la figure ! Il vaut alors mieux passer à* un NTM 35-48, Aeronaut CamCabon 13x5 repliable, environ 45A (4S) qui dé*livre 3kg statique.
 LE GUENNEC 3 points
Oui mais alors la puissance absorbé*e n'a plus rien à* voir avec celle annoncé*e: 45X14,8=666W!!!
 Robert 3 points
En 5S, 48Ax19V = 900 watts, environ 700 watts sur l'arbre de sortie ! et il tient bien à* cette puissance. Mais un moteur n'est pas fait pour fonctionner à* sa puissance maxi plus de quelques secondes. Et mê*me s'il tient de le coup de n'est pas inté*ressant car son rendement à* puissance maxi n'est pas bon. Si on a le choix on a inté*rê*t à* utiliser un moteur à* tension é*levé*e, le rendement sera meilleur à* puissance é*gale, car le courant sera plus faible.
Customer Reviews
Overall Rating
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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.

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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

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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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