Sold 54mm Minimum Diameter Retainer & 38/54 adapter tailcone

[gfunk]

Too much rocket stuff, too little storage space! I machined an extra set of this hardware when I was making my own WM Mach 2 rocket. I have flown these designs in my own Mach 2 rocket, twice to ~22k' AGL after a 38mm H130W shakedown flight, all without issue.

54mm minimum diameter retainer = SPF

• Similar to the AeroPack MD offering, but instead of glue in, it mounts with four #8-32 set screws through the air frame, so it's easily removed or moved. You could glue it in, but that'd be silly. 3 sets of holes allow a little Z- position adjustment if needed. Blue loctite recommended on the set screws!
• You must drill 4 evenly spaced holes through the air frame to mount the retainer.
• Fits perfectly (i.e. snug slip fit) in WM fiberglass and MAC canvas, 2.150" OD
• 5/16"-18 UNC threads to attach to AeroTech threaded forward closures (you supply a chunk of 5/16"-18 threaded rod of appropriate length for your application)
• 1/4"-20 thread for recovery eye nut (comes with the pictured "M5" SS eye nut which has been drilled out and tapped to 1/4-20). Eye nut and short set screw must be red Loctite'd before flight.
• CNC'ed 6061 aluminum, Type II black anodizing
• If you don't know what all this means, then it's probably not for you. ;P

38 to 54mm minimum diameter motor adapter / tail cone kit = SPF

• This adapter was not my idea, I just made my own after CJ shared his, all credit to CJ. Not offering a product for sale here, just the one extra I made.
• Comes with a 7" piece of WM 38mm motor mount fiberglass tube and phenolic CR
• Tailcone adapter retains AeroTech 38mm motors with a snap ring. Loki definitely doesn't fit, CTI might fit (not sure)
• You'll need to glue (epoxy or JB weld) the phenolic 1/4" centering ring and machined tailcone onto the fiberglass motor mount
• Similar to the MD retainer, it mounts in the air frame with 4 #8-32 set screws (so you drill another 4 holes).
• You can get fancy, use both the MD retainer and this tailcone together and mount a rail button on each for a 38mm rail button'ed shakedown flight before moving to the 54mm tower. I can include the rail buttons and 8-32s for this if you want.
• CNC'ed 6061 aluminum, Type II black anodizing
• Snap ring pliers not included (and yes you should wear safety glasses when using snap rings)
• This adapter is specific to 54mm minimum diameter applications, no it won't work with your aeropack screw on retainer.

 

[Mendal]

PM Sent on the retainer

 

[mrwalsh85]

pm sent on adapter

 

[Joe Rocket 97]

Can you point me to a link of that tail cone adapter set up? I’d like to make one

 

[gfunk]

Can you point me to a link of that tail cone adapter set up? I’d like to make one

https://www.rocketryforum.com/threads/cj-builds-wm-mach-2-rocket-2-stage.144264/

 

[dandreat]

That's some awesome workmanship there. The buyers got a real bargain!