Reviews

• Scratch 6-C Cluster Altitude Rocket By Bob Hvarven

  ( Contributed - by Bob Hvarven) Brief: A 6 "C" engine cluster altitude rocket from the May/June Issue of Sport Rocketry Magazine. Found on page 26, titled "6-C Cluster Altitude (Competition Rocketry)" By Dan Wolf. Construction: This is a very easy rocket to build from scratch. The alignment of the side tubes is best accomplished using a line drawn on body tube for a ...