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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.
Specs: Model:NTM Prop Drive Series 35-42A 1250Kv Kv: 1250rpm/v Turns: 6 Max current: 56 Max Power: 500W @ 12v (3S) / 600W @ 15v (4S) Shaft: 4mm Weight: 148g ESC: 60A Cell count: 3s~4s Lipoly Bolt holes: 18.9mm & 25mm Bolt thread: M3 Suggested Prop: Prop test data coming soon!
I am using this motor with a Plush 60 BESC, and trying to use Programming card. Card lights up, BESC beeps, and motor twitches. But, I cannot get the Programming Card to operate. Do I have the motor wired incorrectly? Is there a problem somewhere? Need help.
Ulf,
That's an awesome video. I've been wanting to update my DS. Did you notice considerable peformance upgrade with this motor vs the stock motor? It's amazing how much the V-Tail flex's in the video. I think I will do the same upgrade.
Who can help me ?, I am almost to order the X8 wing, and I m expecting to carry around 2.5 Kg of payload (FPV equipment), could someone recommend me this motor or another one ? with ESC and prop sizes ?please...someone who understand more about setting up the X8 ? waiting for answers..thanx
Yes, it will work. But it will only works if you don't use a prop which is bigger than 12" *6". With this setup and this prop, you will have aprox. 2:30 min full throttle, 2kg (4.4lbs) thrust and 90km/h (55mp/h) speed.
Disappointed and annoyed. The mount did not fit the motor. Had to grind the hole bigger to fit the motor. Attempted to remove the shaft, because I thought I deeded to. Big mistake. "E" clip had no spring to it. Opened up and did not spring back. Then, I realized that needs to be there to keep the armature inside the housing. I had to cut off the long shaft to use YOUR collet. What's the point of putting that long shaft on, if it won't work with your accessories? I can only hope this motor works on the plane I'm building for it.
Any motor fit a guess prop then use a watt meter,alter the prop until you get close to the amps or watts the motor is nominated as. The more volts the smaller the prop.
How do we replace the shaft ? i unscrewd the allen screw it has on one side but the shaft wont budge* the shaft came out from the wire side or the allen screw side ? do i have to hammer it out with force ?
Max current: 56, does this figure say anything about the battery i should be using to push this motor (C rating) I tried running this motor on a brand new plane with the specified prop and I took off and crashed (no power) On the bench I was getting 23AMPS for static runs...battery used : turnigy 2200/20C....did I screw up ?
simdaddy: you get a bsc of 23amps? on an Push aircraft? The BL-Motor has an curent discharging rate of 50amps.:-) for example: Use the Turnigy Trust 75amp and the same BL = perfect config. and use an higher discharge rate of Lipo, 20c is not enough for pusher aircrafts,,hope i can help
running two of these on a sea plane..getting 103 amps on APC 9X7.5's and Turnigy 4000mah 4s 40c cells..that's for the two on one pack..individualy, doing about 750 watts.
I have never bought separate motor but they all seem to come with no thread in the shaft. How am i supposed to attach the prop? Do i have to buy different shaft? Tell me how this works.
I run this motor with a master-airscrew 3 blade 9x7 prop on my pilatus porter (PRODUCT ID: PC-6 EP) using a turnigy 2200 3s batt., I get 20 amps or less on full power static runs (BUT never checked static thrust) On the maiden flight of my porter, It took off slugish though at full power, stalled and crashed. what did I do wrong ? the amps seemed a little low for the static run.
hello friend,mine have one too, i suggest u to use 4sel nanotech with high discharge rate 65-120c. now ur motor wll get the static trust more than 1.5kg..believe me. Amp use by that enjin was about 47-53Amp. my next project is to use 5sel 1300mah. see how whether it melt or not...
I dont have any 4s batteries and I dont really intend to get any as all my planes fly on 3s so I need it to work with 3s. so I need to know whats wrong with my setup.
Something wrong with the battery, connectors, wiring or ESC. The amp draw should be over 40 with that setup. Check the battery, it should be 25 - 30c (for a 2200) to allow a margin and feel for heat in the connectors and esc (suggest around 50Amp specification). Any hot spot equals high resistance and will be part of the problem. You may have dry joints in the connectors and need to re solder them.
Question after measuring with LIPO. The Motor NTM 35-42 with 4S has 650W Power, but wenn i atach my 4S 2800mah Lipo, 10x6 Prop, 60A ESC my Wattmeter shows 950W, 65A with 12000rpm. The RPM was to low and the Watt are to high. Have i made a mistake?? This is not good for the esc and the motor, or?
The prop is too big for 4S. You are correct. This is not good as all either for motor or ESC. I am running same prop but on 3S. Try 9x5 with 4S. Defenetly check again with wattmeter, do not let Amps to go over specifications because they are set to high already. Regards
Ok. Or not good. I have no smaller Prop. I ordered now 10x5, 10x4 and 9x6. For my superlight edge 540 looks a 10" Prop good, but 9" looks to small. I will look an check with the wattmeter. Thanks
Sure, it was easier to use 3S, but i haven't 3S in a fitting mAh. The most important reason for 4S are 600W. I would have to get 600W for my bird. Flying weight is round about 1300g. Thanks
Now i have tested two Props. First 10x4 wooden. Good but i think the rpm was to high, then 10x5. This ist the Prop i would use the next time. I dont check this with wattmeter but i feel its better. My flight wasnt with many full speeds.
I have this motor on 1,2kg aircraft with 10x6 prop, 3S and 40Amps ESC. With hand launch a/c goes verticaly up. I estimate around 1,5 kg of thrust. With 4S you have to defenetely do a test run with wattmeter connected to check loading. Regards
surely if I am running 4s I have more volts so I can swing a larger prop?? I want long flights and efficency not speed really. Thats why I said maybe an 11" prop instead. perhaps I will try several props and decide.
Volts give you RPMs, but actual work is done by Amps! The bigger prop you put and more volts supply the more Amps will be demanded to do work. At some moment the power required will overcome either motor or ESC max and one of them will burn. Usually if you go for more S battery, you put smaller prop BUT NOT BIGGER!!!! to keep max Amps at the same level. Do NOT put 11" prop on 4S ... thats my warm suggestion.
4000mah 4A for hour so that 60*4=240A for minute if you fly constant 50A,hence* 240/50=4,8 in theortical but sometimes the motor takes 20-30-40-50 so that you can fly approximately 5-6-7-8-9-10 minutes.:)may be more
Depends what you are going to do with this motor. Usually motors do not run all the time at max power (if not to fly 3D). So I would say that average consuption will be around 30Amps. With such consumption battery you specified will be drained in around 6-7 minutes. Regards
Hello
Can someone tell me, which is the best prop for this engine for 60A ESC on 3S. I use 10x5e prop and ESC and engine did not become even warm. Which is the best prop for best performance?(60A ESC, 3S* 11v)
thx
try to use 11*6e or 11*7e props. with 3s 2200 mah max current must be around 40 Amp and static trust 1,8 kg. by this link you can calculate it for free: ***********s4a.ch/eflight/motorcalc_e.htm
Just got my EagleTree RPM sensor... and need to know how many "poles" this engine have. Stats "6 Turns??" in the engine specs... whats "turns" vs "poles" Used 9*7,5 SF and got 460w and 8800rpm when guessing number off poles to 12... ???
you might be ok with a 10x10 or 10x9 or you can try a 9x9 or 9x10 to be safe but make sure you have sufficient cooling for the motor since high pitch props get loaded at high speed
I have to add a vote on that this motor shaft sucks. Thought it would be an upgrade to my acromaster and first bench run with a well balanced 11x5.5 APC it reached 27 Amps on 3S and the prop was airborne. Shaft is only hardened on the surface, it snapped almost flat level at the bearing. The motor has good power and punch but I have to cut an own shaft from some hardened shaft steel.
Better off would be 5mm shaft and of course proper manufacturing.
yes, i have 2 of this motors, the shaft brake in the first flight, but if you put the prop in the other side, using the accesorises, the motor is very good and powerfool.
"Numnut.." ... you are right - this is the only 4mm I have broken so far but I did what "Bekkarim" suggests and it is working again - even better since it's harder to break the shaft in this configuration.
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I just flew the PZ Corsair with this motor today. It is so powerful that I only use about 2/3 throttle at the most. If I nail the throttle the plane will torque roll somewhat. It is much too much for this plane and am anxious for the 35-36 motors to arrive.
Using 3S TGY Nano 2650mAh 35C and Eflite 2100mAh 30C
Tests all with fresh TGY pack at 12.5vdc and 60a Tgy Plush ESC
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. what did I do wrong ? the amps seemed a little low for the static run. 
