• If you have bought, sold or gained information from our Classifieds, please donate to Rocketry Forum and give back.

    You can become a Supporting Member which comes with a decal or just click here to donate.

Nozzle for Kosdon 29/150 C-slot

The Rocketry Forum

Help Support The Rocketry Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

J Blatz

Well-Known Member
TRF Supporter
May 8, 2010
Reaction score
I have several Kosdon G40 loads I want to burn, but I lost the only nozzle I had for this load.

Anybody out there have one? Or would anyone like to make one for me? I have the specs, somewhere, I think.
I can make them but I don't know what throat the G40 needs, unfortunately.

Kosdon G40 nozzle is 0.1695 (#18 drill). I don't know the nozzle length, but you could back that off from other dimensions.

The grain is 5" long with 1/4" wide slot half way through the diameter.