RE: thunder crawler.
here is the drill and gear reduction, and the batt and speed controll.its a simple setup but now it all needs to be mounted. i also made this truck from a newbrite, i added a s400 rocket motor and a speed controll and a radio. the radio gear will be taken out and put in the crawler. with the sides up it looks like a steel plane, it will never fly but it will be easy to mount the servos with some blocks on the side of the frame.
btw the newbrite is a bit faster than before, its fun outside but dosent have a suspenion and flips easily at speed.