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 HobbyKing.com warehouse.
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
Max current: 70A
Max Power: 1295W
Cell count: 4
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,?
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.
I bought this motor with the intension of using parts from another plane being a 70amp ESC and 4S 4000mah lipo. I also got a 14x6 prop but have found that it is too large for the plane. Thinking of getting a 13" prop but wondering what the best pitch will be? 13x8??
Hi.It all depends on what you intend to do with the plane...pitch is connected to speed..the more pitch the faster your plane will fly...if your increase the pitch you have to lower the diameter( if you are at max AMP).you have to figure it out by yourself and experiment..the only point to watch is not overloading your ESC..
I use this in a 1400mm plane with a 13x8 3 bladed Master Airscrew prop, I also use a 5S battery and an 80 amp speed controller. This setup maxes out this motor. If you need a smaller diameter prop, I suggest going to a 3 blade. Good luck!
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..
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.