This is a replacement fin can for the following model rockets:
Enerjet 1340 Sounding Rocket
Enerjet 1340/20 Sounding Rocket
Centuri Phoenix Bird
Centuri M.A.R.S. Project
Estes Challenger II
Estes Eliminator XL
The dimensions were taken right from fin can and put into the CAD program I used to design it. The tubing designed to use it is Centuri ST-13 and the Estes BT-56. You can always scale it up or down to fit.
Will it reach and pass through transonic speeds and even into supersonic speeds remains to be seen. The massed produced one that came with various kits was not able to do so.
1) Stock design with the launch lug,
2) Without the launch lug.