The Sunward Flying Umbrella is a very high drag rocket that looks like, well, an umbrella and flies like one too. The “rocket” uses a parachute for recovery, but that might not really be needed. It does not go very high and it comes down slowly.
- Low altitude
- Laser Cut Balsa Fins
- Skill Level 3
- Length: 14″
- Width: 13″
- Recovery: 18″ Parachute
- Recommended Engine: D12-3
- 03/10/2006 – Purchased Sunward Flying Umbrella from JonRockets for $24.50 (Retail $24.50)
- 01/05/2007 – Measured 1/4″ & 1-3/4″ from one end of motor mount tube. Cut a slit at the 1/4″ mark and installed the engine hook. Slipped a green centering ring onto the tube and moved it to the 1-3/4″ mark. Slipped the other centering ring onto the other end of the tube even with the end and glued both in place. Glued the thrust ring even with the same end of the motor mount tube on the inside. Allowed the assembly to dry on wax paper overnight.
- 01/06/2007 – Filleted all centering ring joints at the 1-3/4″ mark. Copied tube marking pages and shock cord mount page and cut out each with a straight edge and razor blade. Marked body tube for fins and launch lug. Glued fins to body tube. It took a while to figure out how they fit onto the body tube. It was hard trying to keek them absolutely square and straight. Allowed to dry overnight.
- 01/07/2007 – With a lot of difficulty, glued the spaces between the main and fins. Even tough they were not perfect, they did fit together with a little glue filler. Fitted fin spacer evenly. Glued motor mount incorreclty onto read of body tube. Did not push it until the tube was even. Only pushed it until the rear centering ring was even with the body tube. Will try to balance it out with nose weight if possible. Glued launch lug 5″ along launch lug line from rear of body tube.