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Old Oct 03, 2012, 01:19 PM
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Youtube Johnbrum26
United States, TX, Celina
Joined Oct 2010
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Originally Posted by Danub View Post
I dropped my props down to 9" apc's and if flies really smooth BUT, It seems under powered. . . 70% throttle to hover and I now have this weird pitch "back". . . . What I think is happening is the quad kinda "falls" off of the air. . . I don't understand the pitch going back with the CG pushed up about 1/2" from where it flew fine with my CC board??

I think these 2 are possible solutions:

1. change from 10x4.7 apc props to 10x3.8 to get the motors further spooled up on lift off (avroto 770kv)

2. change from my avrotos 770kv to something aroung 1000-1100kv that will do the job with a wider "power" window? It kinda seems the multiwii guys go for higher kv motors, an I right?

I do have these motors laying around but don't think they will handle 4s and 9" props. . . maybe I am wrong?

Whadya think?
That is the same problem i have on 10" props, it requires alot of throttle to get it to hover, That is why i stuck with 11"
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