NTM Prop Drive motors are rock-solid performance outrunners with tight windings, quality bearings, correctly rated magnets, balanced stator and flux rings 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.
Model: NTM Prop Drive Series 13-12 2600kv
Max current (Burst): 3.9A
Max current (suststained): 3.0A
Max Power: 42W @ 11.1v (3S)
Cell count: 2s~3s Lipoly
Mount type: Tri-hole firewall mount (15mm width between mount holes)
Connection: Loose wire (for direct soldering)
Prop Test Data:
3.75x3 - 7.4V / 13W / 1.8A / 62g thrust
3.75x3 - 11.1V / 31W / 2.8A / 102g thrust
4.5x4.5 - 7.4V / 20W / 2.8A / 84g thrust
4.5x4.5 - 11.1V / 42W / 3.9A / 129g thrust (Burst figures only)
Max Currents (A)
Length B (mm):
Can Length D(mm)
Unit Weight (g):
Total Length E(mm)
Quality is variable. Some rotate smoothly, some do not. Some cope with a 3S battery some do not. I have had five and one has worked as advertised. A pity as the Durafly F3A is a great flier.Bare thread wires are impossible to connect to any ESC. I literally tried 8 times and eventually ran out of wire since it kept breaking. The idea of using winding wire as connecting wire is overrated. I'll pay the penalty of a few grams to have a wire I can connect (and a motor I can use).Mine came with a loose magnet straight out of the bag - disappointing to say the least. Was able to glue it back in with CA and now it runs quite well. Using it in a R/C conversion of a 25 inch rubber powered balsa kit plane - a Pacific Balsa 'Hawk'. Running on 1S with the Turnigy 5A 1S brushless ESC and GWS DD 5x3 prop. Since the power and RPM are quite low, I was able to attach the prop with hot glue - saves weight and money. As a bonus, in a crash the hot glue gives way and the prop falls off, saving damage to the motor shaft.I use the prop adapter from the radjet 420.
My little radjet 420 flies super fast.
It's now a turbo Radjet!!works ok and nice aspectI was about to buy this motor but was disapointed to find out that there's no 1.5mm prop savers available on this site...the purpose of this motor is to keep the weight down. A collar weighs the same or more than the motor.This is the REAL KING of 5 grammers bl motors, beats my favourite AP 05 (same mounting wholes nearly equal weight differs 0,2 gramm?!?)
Changed in two models ( sailplane 2s-Lipo 780 mm flying weight 90 Gramms, Cox Mustang 540 mm 3S- Lipo 120 gramm now it`s a rocket )
-First experience longer flying time - more power - looks like much higher efficiency. Don`t want to bore with "individual measurement" I bought two of this Kings and I am really proud to show my collegues what`s going on!!