Review of NTM Prop Drive 28-26A 1200kv Motor and Thrust Test

Review and thrust test of the NTM Prop Drive 28-26A 1200kv brushless outrunner. Tested with a 3S and 4S lipo and a 8"x4.5 prop, Hobbyking 20A ESC flashed with simonk.

My website:

[ebuzek]

Your higher amp draw (than the specs list) is because you are using a slow fly prop and not a regular "E" prop. The slow fly props have a wider blade and push more air, thus taking more energy to run it. I have the same motor. 8x4E draws 9.9 amps on 3s and rpm is 10, 500. 8x6E draws 12.5 amps on 3s and turns 10, 300. hope this helps.

[supercobrapro]

Dear Sir,
You tested the thrust of the motor horizontally. Would thrust be the same when we use it for vertical flying?
An Rc plane engine states that it has static thrust of 23.5kg at 1800 meters. Does that mean straight upward from ground?
The question what I'm trying to ask is: if the thrust is calculated horizontally ( you did in this video), would it be same straight up vertically?

[iqbaln]

Hi Andrew, your thrust vector is perpendicular with your load cell, I think it will introduce additional error in your measurement?

[AeroTesting]

Hello! i have one big question i want buy this motor.
Model: PRODRIVE v2 Series 4238 750KV, but i not know what good helice i can use he!
i will use this motor in No Extra 300
With 1 meter 20 wing and
Total weight 1.20

Model: PRODRIVE v2 Series 4238 750KV
KV: 750 kV
Max current: 55A
ESC: 70~80A
Cell count: 3s~4s Lipoly
Pole Count: 14
Bolt holes: 25mm
Bolt thread: M3
Shaft: 5mm
Connectors: 3.5mm Bullet

what helice is good for use he?

[raghavendrasrivardhan]

Hi can i get to know what is the exact size of motor . Some say it is 2826(mm) and other say its 2212(mm). I taught of checking it myself purchasing. But hobbyking dosn't ship to my country .

[mike]

I am using this motor on my Hexacopter, and also quadcopter, and I really like this motor because of the thrust. The only thing I don't like about it, is that the bearings are too fragile, they start to make noise (when you spin the motor by hand) from a small crash. I am running my hexa and quad with bad (noizy) bearings, and it flies fine.... so far :)
I am using Rctimer 30A OPTO with SimonK pre-flashed ESC, (the ESC is cold after flying), and 4S battery, my quad hovers at 50% throttle (no camera, no FPV), and my hexacopter hovers at about 60% throttle, with gimbal, gopro, and FPV gear)

[Bobbybalboa]

I'm trying to build a hover suite is 1200kv possible to pull this off ?

[krashNburn]

It looks like you're not using a pusher prop so that may be the results are skewed but good work anyways. I'm looking at getting these motors to use in the new dart400. Any concerns on the bearings? Thanks for the review

[siboolofficial]

Sir, where did you get that small power meter? 

[Ultrarc]

I used this motor on a 900mm flying wing and its perfectly powered with an APC 8x4 prop

[davidmarkwood]

These motors are very good I'd say better than most in the price range

[tinkertron]

Thanks for the video Andrew W. I am just getting into the field of custom build my own quadcopters. Right now I am working on a Q450 Ghost Edition that I got from HobbyKing. I am using an APM 2.8 Flight Controller with GPS/Telemetry, I also purchase some high crab legs, also purchased on HobbyKing. I purchased my first Radio transmitter from Banggood.com the FlySky FS-i6S. I got my battery from a local hobby store the Predator 11.1v 3300mAh 35C, which I believe is a 3 cell? But in reference to your video, I learn to stay away from 10x4.5 and to go with 10X5, i heard that 4.5 can snap? Any what material of props should I stay away? Are Nylon props OK to uses? I haven't decided which motor KV I will need till I get my rig weighed, also what does the maker NTM stand for and whats their web address, so that I can visit their site and view all their motors and specs.

[norules]

i was going to purchase a motor of 2212 but they told they have 4 types
1. 2212/13 1000KV
2. 2212/12 1400KV
3. 2212//6  2200KV

i wanted to know which one is better and will produce more thrust . please tell me as i am confused about purchasing motors.

[jonasaers]

This is probably a stupid question but is this a DC-motor or an AC-motor?

[sufysofi]

Have one but with 1350kv, combined with HKVPP4D prop, 30A esc, 450 3cells lipo, slighty modified Techone Epp Sbach 342...

[masso]

So…. How does this brand compare to Turnigy?

[manuelverdugo]

Your propeller looks like a GWS Rs8x4.3 and according to the manufacturer its rpm limit is 10500. So your motor will surely surpass them with only 3slipo. The safest thing is that this motor these rpm with this propeller at 3 and 4slipo. GWS recommends never using it above these RPM.
If they don't have an RPM meter, you may find that you overreached when you hit 130Watts or 759g of thrust.
in your case at 152 watts you are turning at about 10, 785 rpm with an efficiency of 65.6%
With 4slipo and the same propeller it's crazy. I hope they wear a protective mask. 12, 965 rpm (2, 465 more than those recommended by the manufacturer) with a power usage of 294 watts for an efficiency of only 60.9%. This means that your motor is working on the 179 watt propeller. and 115 watts are being lost in heat in a motor that barely and should dissipate about 60 watts. My recommendation is that you try HD or APCe type propellers and in 3slipo motors that you never use RS, SF type propellers. when they have Kv above 920 unless you use FC propellers

[jaysonragasa]

title said "Review" the actual review starts at 4:00 

[mariomatovina]

Sorry, the video is too long to watch it just to learn a few numbers.

[tburriss]

Thanks for the presentation. Useful. Like nearly all you-tubers you talk entirely too much which is not efficient or professional. Maybe write out your script or something.