Multi-rotor

A multi-rotor helicopter is a flying vehicle with more than one rotor.

The nice people at http://www.quadheli.com/ have asked for our help designing and building a multi-rotor helicopter.

Several people are using small unmanned helicopters with 4 rotors ("quadheli" or "quadcopter").

unsorted

way too many links here. Please delete the ones not relevant to multi-rotor helicopters.

• Wikipedia: quadrotor is a nice introduction. But what are these "three rotor craft" it mentions? (TriCopter? Tri-copter?)
• The Gluonpilot wiki (autopilot) mentions "Quadrocopter" [1]
• MikroKopter wiki [2]
• QC-Copter Wiki [3]
• QuadroCopter Wikia [4]
• ARM-o-Kopter wiki [5]
• DIYdrones: "There are a zillion quad- and tri-copters out there" [6]
• DIYdrones: Quadcopters discussion forum [7]
• DIYdrones: Return to Home Quadrocopter (UAVX) [8]
• DIYdrones: "There are loads of open source quadcopters out there, but they're all ..." [9] Is it possible to design a helicopter that avoids this problem?
• the "ChRoMicro - Cheap Robotic Microhelicopter HOWTO" [10], [11] describes "how to build a 300 g helicopter with embedded Linux and Bluetooth datalink from off-the shelf components for less than 500 EUR." Can these ideas be adapted to helicopters with more rotors?
• Quadrotto: Project Quadcopter [12], [13]. Is there any way to avoid making the same mistakes all over again, and instead make fresh new mistakes? :-).
• RCgroups: Multi Rotor Helis discussion forum [14]
• microdrones [15]
• whatnick blog: "quadcopter taking shape"; and other quadcopter posts

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