Reviews

• Scratch Air Pressure Rocket By Matt Gillard (August 4, 2009)

  There are several air pressure rockets on the market that either use an air chamber that you pressurize by a hand or foot pump and the rocket fires by a release mechanism or allows pressure to build up until it overcomes the friction holding the rocket on the launcher. This one is a variation on this idea. A foot pump builds the pressure inside some copper tubes and is then released via a ball ...