NTW 2836 3000kv equivalent? - RC Groups
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Dec 29, 2017, 07:58 PM
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NTW 2836 3000kv equivalent?


I used to really like the NTM Propdrive 2836 3000kv on 4 cells and a 4.5 x 4.5... but recently i have bought 5 of the v2 motors and all 5 are bad... can someone suggest a good replacement that has atleast the same performance or better?

thanks
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Dec 30, 2017, 06:41 AM
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Fourdan's Avatar
Hi
Bad ? concerning what ? Kv ? temperature ?
Look at Scorpion HKII-2221-10 (3000 rpm/V 81g)
https://www.scorpionsystem.com/catal...22/HK-2221-10/
Louis
Dec 30, 2017, 05:16 PM
homo ludens modellisticus
Ron van Sommeren's Avatar
Quote:
Originally Posted by paulwilson
...can someone suggest a good replacement that has atleast the same performance or better? ...
Motor of same mass ('=' power) and same Kv.

Quote:
Originally Posted by paulwilson
...ave bought 5 of the v2 motors and all 5 are bad...
How, in what way bad? With same voltage and prop?

Keep in mind that both current and power drawn are proportional to Kv cubed. E.g a 10% difference in Kv would give a 30% difference in current and power drawn. A 20% difference would result in a 80% change. Doubling Kv would eight-fold current and power.

Four simple methods for determining Kv
www.bavaria-direct.co.za
→ motor constants
→ Kv constant.


Prettig weekend Ron
Last edited by Ron van Sommeren; Dec 30, 2017 at 05:24 PM.


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