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NTM 35-42 1250kv prop size

Old 10-09-2014, 12:57 AM
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Lproee
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Default NTM 35-42 1250kv prop size

Hello,
What prop would you recommened me using with this motor?
3s lipo on 1500mm wingspan trainer.
Thanks!
Old 10-22-2014, 08:34 AM
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aeajr
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It is ALWAYS best to provide a link to the site about the motor as that will usually answer the question for you.

We also need the weight of the aircraft, ready to fly and the details on the ESC and the battery to be sure they can handle the load.



After doing some searching I found this:
https://www.hobbyking.com/hobbyking/...50Kv_600W.html

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: M3Suggested Prop: Prop test data coming soon!

At the same location I found this test post by an owner of the motor.

Using 3S TGY Nano 2650mAh 35C and Eflite 2100mAh 30C

Tests all with fresh TGY pack at 12.5vdc and 60a Tgy Plush ESC

#1 11x5.5E APC WOT 495watts 43amps 9356rpm
#2 10x7E APC WOT 510 watts 46amps 9930rpm


So, it would seem one of these props would be suggested. That assumes your battery and your ESC can handle at least 50 amps.

Last edited by aeajr; 10-22-2014 at 08:43 AM.

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