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Results tagged with design
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user 46
Use in questions asking about why the materials or components of drones/model aircraft are constructed in a certain way.
27
votes
Accepted
Why do multirotors usually have four propellors?
With aircraft, there are 6 degrees of freedom (DoF) we want to control (roll-pitch-yaw, and x-y-z), but for hovering vehicles (i.e. rotorcraft) we can get away with controlling two degrees of freedom …
- 1,892
10
votes
Is it better to have a bottom heavy quadcopter or a top heavy quadcopter when it comes to a ...
It depends on what kind of stability you're after. Nicolas Petit wrote a paper on this several years ago, the graphics below are taken from Pages 4 and 5.
The summary is that a higher CG is better fo …
- 1,892
5
votes
Why do a quadcopter's opposite rotors spin in the same direction?
They don't necessarily have to spin in the same direction, but it gives the best results.
This has to do with the mathematics of drone flight. Pulling from https://drones.stackexchange.com/a/419/46, …
- 1,892