Nozzle for Kosdon 29/150 C-slot

[J Blatz]

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.

 

[H_Rocket]

Reach out to Dan Patell, he made some for me.

 

[patelldp]

Reach out to Dan Patell, he made some for me.

I can make them but I don't know what throat the G40 needs, unfortunately.

 

[J Blatz]

Dan - I'll poke through my specs at lunch.

 

[jsdemar]

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.

 

[patelldp]

Pretty sure the nozzle is 1” long. No step.

 

[jsdemar]

Pretty sure the nozzle is 1” long. No step.

1" sounds right. Here's the KBA 29mm assembly instructions which show the same case system used by the G40 C-slot.
https://www.aerotech-rocketry.com/c...KBA_Instructions/29-150-250_kba_in_k08001.pdf

If you make a 0.221" nozzle also, the case could use those KBA loads.

 

[J Blatz]

Thanks John, you are correct. 0.1695" throat.

 

[J Blatz]

Hey Dan, please PM on this, would like to proceed.