What is it: 

Full 4-fin modular aluminum assembly intended to be used with a minimum diameter high-power rocket. The assembly can be bolted onto the airframe and then flown. 

Models Offered:

• We have developed and tested the “3-inch” version – and will fit airframes with an OD = 3.130″
• The “4-inch” version is currently under development.

Future versions: (based on customer demand)

• “54mm”
• “38mm” 

Specifications:

CNC milled from 7075 Aluminum

Refer to the Fin Design Principles page for additional design details.

Fin and Bracket dimensions will vary based on the specific model. 

Recommended Use

For high-speed flight it is HIGHLY recommended that the fin assembly be epoxied onto the airframe. This will create a really strong bond between all assembly components and the airframe. Using epoxy will also fill in potential (small) airgaps that can exist between assembly components as well as the airframe. 

The rotating example on the right has flown multiple times at supersonic speeds (MACH 1.4+) and was dragged through the Black Rock Playa dirt for 15mins after landing – and there are barely any scratches or marks.