Summary

This is a re-mix of the Apollo RD-4 Thruster Nozzle created by Swiss_Dynamics
https://www.thingiverse.com/thing:4656358
for the creation of the thruster assembly used on the Apollo Service Module.

The nozzle diameter is 18mm so you will know how to scale it up or down to fit your needs.

The nozzles are scale but mount is only semi-scale.