Model Rocket Side Boosters

These are mounts for Side Boosters on a Model Rocket.

These can be mounted for show, or for use.
The booster tubes are for the 18mm BT20 and mounted to a 56mm BT70.
They are for the 18 mm engines. Either Estes BlackPowder ABC or Q-Jet C/D.
If you just use boosters or want the engines ejected, Do not create a hole into the BT70 for the Cowling.
If you want the boosters to provide / help ejection, you can make a hole into the main BT70.

Enjoy.