Doug is an aerospace engineer and pilot with ASEC, Inc. He served in the U.S. Navy as a test pilot and test pilot instructor, and has been voiding warranties since early childhood.
Author of these Magazine Articles
$5 Helicopter Rocket
Use toilet paper tubes, rubber bands, and hobby rocket motors to build a high-flying model rocket that transforms into a helicopter mid-flight.
In Flight from MAKE: schoolsout: School's Out page 71
Use toilet paper tubes, coat hangers, and rubber bands to build a high-flying model rocket that transforms into a helicopter midflight, then spins dramatically back down to Earth.
From MAKE: 25: Microcontrollers and Arduino page 82