Balloon Rig, etc.
I've been continuing to work on the helicopter almost every day (design, lasercut, build, and repeat).
The new wireless video transmitter/receiver works quite well.
I lasercut some structural components so that I have a single hand-held controller (including the video receiver, LCD TV monitor, battery, and radio transmitter).
I've set up a microcontroller to manipulate the signals between the radio-control receiver and the motor controllers. (The microcontroller takes in PWM servo signals and outputs modified PWM servo signals.)
I've done two shoots using a balloon rig. First I shot in a park. A week later I shot on a rooftop in Manhattan.
Now that I'm done with the balloon rig, I'll go back to focusing on the helicopter. Hopefully soon I'll determine whether I should be using 2, 3, or 4 rotors.