| CP Method: | Rocksim/Rocksim | 
| CP Position From Front: | 18.72 inches | 
| Manufacturer: | Thrustline Aerospace | 
| Product Type: | Kit | 
Brief: The Double Up is an original design from John Rowan-Stern at Thrustline Aerospace. The Double Up is a fairly simple two stage rocket with a four fin design, friction fit motor retention, gap staging, and streamer recovery. The kit is rated skill level three but I would rate it closer to skill level two based on its straightforward assembly. Construction: This kit arrived ...
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