Deployment¶

Single Deploy vs Dual Deploy¶

Single deployment uses only a main chute that is deployed at apogee, while dual deployment uses a drogue chute at apogee and a main chute at a lower altitude during descent. Electronics are required for dual deployment. Dual deployment is favored for high altitude flights as it reduces the drift distance of the rocket by falling faster under drogue for majority of the descent.

Dual-Step Dual-Deploy¶

The standard deployment mechanism commonly utilized by the club.

Single-Step Dual-Deploy¶

Employs the use of a chute release (Jolly Logic) or cable cutters (Cat Claws)

Head-End Deployment¶

Parachute is in nosecone

Head-End Dual-Deploy¶

Parachute in fin-can and nosecone

Motor Ejection¶

This simplest form of deployment, commonly used for L1 flights. Motor ejection uses a black powder charge in the motor to separate the rocket. After the motor burns out, a delay grain slowly burns for a set time, then ignites the black powder (ideally right after apogee). Optimal delay can be simulated in OpenRocket.

Delay Grain Drilling¶

Created by Aidan M. Last Edited by Aidan M. on 2026-04-22