are were going to go out to the test site and static test the blue ball with a “solid” catalyst. (The FAR event was canceled due to 75mph winds forecast on Saturday as I was typing this.)
John Carmack sent me several catalyst styles, one kind was a pourable ring catalyst from cpilink.com It looks like the picture on the right here. So we had some stainless plates water jet cut by Thunderbird Water Jet to hold the catalyst rings, and we added a sintered stainless diffuser plate. and reassembled the motor.
When we first cut the motor apart the inside was kind of nasty with permangenate residue.
A picture of the sintered diffuser plate welded to the support ring.
A view from the other side as it is welded into the top of the motor.
A view of the waterjet cut bottom support plate. The area between the two plates is filled with the ring catalyst. The fittings on the side as shown on the view of the motor top allow us to shake the catalyst out and replace it.
The reassembled motor ready for testing…. soon.