Reviews

• Scratch Upscale Semi-Sonic By Marlin Meyer (July 22, 2010)

  ( Contributed - by Marlin Meyer - 07/22/10) Brief: Single stage, low power, parachute recovery rocket. I saw the review posted on EMRR of this rocket, used the provided Rocksim file (thank you) and upscaled to BT-55 Construction: Parts are all Semroc: BNC-55PT nose cone SE-2 screw eye BT-55 body tube 15" parachute (Topflight) BT-20 engine tube (2) ...

Rocksim Design Files

• Semi-Sonic upscaled