full propo using bcg electronics
 

___ok if you want to use the original electrics to a bcg, you might want to have proportional control. I checked the speed of the tx with rx and it is possible to make propo with a stock receiver and a slight mod to the transmitter... If you look at the schematic of the tx, the buttons need connection to ground, easy, transistors.
___The only way i've thought of controlling it is with variable oscilators ie: a quad comparator, cause they can be all on, all off, everywhere between, and thier easy to adjust to make a center off. This makes it optimal for the speed-flyer because there might be too much control with all on input. I wouldnt weeken the actuators to lessen control, because what if you want to turn sharp so you dont hit a wall er a trash-can?
___With the chip im using, it has 4 comparators in it to mod to the 4 channel remote. Im gonna use an lm339 for this. This pic is one fourth of an lm339 which you have to build:
http://img46.exs.cx/img46/6493/ComparatorOscillator.gif
___The 100k resistor on the power (+ or -, im not sure) will be your pot or "control stick", just use the other half of the pot for the other side. Also theres ways of fine-tuning it to your control stick, which im not sure of details right now. Oh and the LED is where you hook it to the transistor via a resistor.
___2hz seems to be almost perfect for this application (not too much).
___As for range, im still expirimenting, though someone said to add a longer antennae to the receiver, and add more batteries to the transmitter with a voltage reg on the chip. ¿not sure if it works though?
___Hope this helps alot with propo issues :)

sounds like it will work. Good luck on the project

this wont work. the problem is the BCG chip is strange it has "fwd" "left" and "fwd+left" so by using a simple variable occilator it doesnt work. its been tryed.

It will work, because im using 4 oscillators, one per chanel. I stated that you "tune" them so they are off untill you change the resistance to begin the oscillation. And when they hit full, the oscillator locks "on".

Compared with other oscillators, they're really slow; around 2-5bpm. Thats as fast as your fingers can move, however,your fingers arent very stable with digital, but they are with analog. Its like playing Gran Turismo 3 with a ps1 (digital) controller, campared with a ps2 (analog). The analog rules out.

Most all RC racing uses analog for precision driving. Try changing the pots with toggle switches and a two year old can beat you, regardless of skill.

My point is with the precision of analog to digital electronics, it is possible to make your "stock" bcg act superior to others by just modding the controller.
You can litterally do slolum(i think thats how you spell it) tests between mini cones with a stock car.