Reviews

• Scratch Cheap Dumb Rocket (CDR) By Larry Brand

  ( Contributed - by Larry Brand) Brief: Cheap Dumb Rocket (CDR) is a 40% scale version of the 8 1/2" tall, 7.5" diameter, tube-fin Big Dumb Rocket (BDR) built as a club project by the SSS rocketry club of Arizona. As a fan of tube-fin rockets, the huge, twin J570-powered BDR is the biggest tube-fin design I’ve seen, so I made plans to fly one like it for my Level 2 shot. ...