/diy/ - Do It Yourself

>>1439202
Cant find the exact ones I've watched in my history but if you search youtube for "quadcopter without gyro" some stuff comes up.

https://www.youtube.com/watch?v=PZtTrw3f3Is

Stuff like this reminds me of people learning helis and not knowing where to put the cyclic to avoid dynamic rollover, which makes me think its a similarly difficult thing to learn, and a similar situation. I've seen a lot of people say that quadrotor, by design, requires gyro - but I've been unable to find anyone elaborate on exactly why this is true... the exception being the anon in this thread saying ;

>if one prop is developing slightly more lift than the rest, how do you correct this? trim? that won't theoretically work for more than the one specific rpm you happen to be at

From that I am inferring that, IF quadrotors were collective pitch controlled at a static rpm only then would it be (sort of) analogous to a helicopter and in that case the gyro truly wouldn't be needed.