# 55120-370KV In test nc

**URL:** https://foil.zone/t/55120-370kv-in-test-nc/3666
**Category:** Propulsion System (Motor, Gears)
**Created:** [January 23, 2019, 3:07am UTC](https://foil.zone/t/55120-370kv-in-test-nc/3666 "2019-01-23T03:07:11Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![chris2](https://foil.zone/user_avatar/foil.zone/chris2/32/5372_2.png) [@chris2](https://foil.zone/u/chris2)
#### Post date: [January 23, 2019, 3:07am UTC](https://foil.zone/t/55120-370kv-in-test-nc/3666/1 "2019-01-23T03:07:11Z")

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![image](https://efoil.builders/uploads/default/original/2X/1/1565fe632e267a9325159cbf68b348de6f961ecf.png)

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### Author: ![Bender](https://foil.zone/user_avatar/foil.zone/bender/32/1752_2.png) [@Bender](https://foil.zone/u/Bender)
#### Post date: [January 23, 2019, 12:46pm UTC](https://foil.zone/t/55120-370kv-in-test-nc/3666/2 "2019-01-23T12:46:06Z")

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Hi Chris what is last column %, is it duty or efficiency ?

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### Author: ![Alexandre](https://foil.zone/user_avatar/foil.zone/alexandre/32/2884_2.png) [@Alexandre](https://foil.zone/u/Alexandre)
#### Post date: [January 23, 2019, 2:00pm UTC](https://foil.zone/t/55120-370kv-in-test-nc/3666/3 "2019-01-23T14:00:04Z")

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Efficiency i think 3659/4512=.81  
W vs mecanical power ?

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### Author: ![Bender](https://foil.zone/user_avatar/foil.zone/bender/32/1752_2.png) [@Bender](https://foil.zone/u/Bender)
#### Post date: [January 23, 2019, 2:23pm UTC](https://foil.zone/t/55120-370kv-in-test-nc/3666/4 "2019-01-23T14:23:36Z")

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So 3659 is power at the shaft ?

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### Author: ![chris2](https://foil.zone/user_avatar/foil.zone/chris2/32/5372_2.png) [@chris2](https://foil.zone/u/chris2)
#### Post date: [January 23, 2019, 2:25pm UTC](https://foil.zone/t/55120-370kv-in-test-nc/3666/5 "2019-01-23T14:25:40Z")

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The motor efficiency is respectively 370KV, 420KV, 450KV, 490KV and 660KV

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### Author: ![chris2](https://foil.zone/user_avatar/foil.zone/chris2/32/5372_2.png) [@chris2](https://foil.zone/u/chris2)
#### Post date: [January 23, 2019, 2:27pm UTC](https://foil.zone/t/55120-370kv-in-test-nc/3666/6 "2019-01-23T14:27:15Z")

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Yes, his mechanical efficiency