I'm an engineering student doing research to design and prototype a never before seen or significantly improved attachment for a quadcopter. You don't need to go in depth at all with ANY idea you have, just tell me it and I'll take it from there. It doesn't matter how realistic or ridiculous it is, so go nuts. I'll try to post results if this post is fruitful. Thank you for any and all suggestions.
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@Michael - good luck with your project.
Here's something that only a really old engineer would consider: Current flight controllers use MEMS based "rate gyros" for platform stabilization. These device suffer from a fundamental sensitivity to vibration because they are using the first order differential of angular position to calculate attitude.
By unfortunate coincidence the vibration frequencies of a 'copter configuration almost always contain components that interfere with the MEMS signals making it necessary to provide mechanical damping and apply complicated filtering in order to extract the best estimate of the real result.
Aircraft gyros used for the artificial horizon do not have the same problem. These are based on inertial systems using good old fashioned mechanical gyroscopes and because they are fundamentally attitude sensitive (not rate sensitive) they are virtually immune to vibration and have the potential to provide superb platform stabilization.
IMHO there is an opportunity to develop a small light weight inertial gyro for drones using the latest manufacturing techniques such 3D printing in metal and then using modern sensors and signal processing to extract a "flight controller friendly" result.