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Thought I should do a wrap up of this thread. Had to spend a couple of weeks with family in more sunny climes, then life intervenes but here's the last word. Thanks to NTP2 who created a free CAD file for me and and to MarsLander who referred me to Alex at Boyce, the result was a very nice boat...

Thanks for the referral. Alex will be making the boat tail for me and gave me some great advice for insulating against high temps.

Post Script

All feedback much appreciated!

Thanks to NTP2 and his offer to provide a CAD file for my sustainer boat tail, which I now have, I need to get it 3-D printed. Yes, it may melt or who knows, but that's one of the things I want to find out. If it does I may have to have a metal one printed somewhere. In the meantime I'm asking...

RASAero II advises; Marginal Stability and Unstable Rocket Warnings The RASAero II Flight Simulation has built-in checks for rocket marginal stability, and for when a rocket goes unstable. Stability margin is CP – CG (distance measured from the nose, CG should be ahead of CP), divided by the...

Thank you for this thread, problem solved. First time using EasyMega.

Uh... WOW! Comments before have said it all. Congratulations on an incredible flight. So there was kickapoo juice in the homemade propellant, months of meticulous planning, slow careful construction, and an appeal to have Lady Luck sit on your shoulder. All things I aspire to. If you decide to...

Thanks Jim and Cris. It looks like I have the information I need and will contact Cris for parts as needed. I believe I have one of the later versions and one of the older versions of the switch. Thanks again.

Hi all, I’m in the process of completing the sustainer for a planned 2-stage. My hope is to launch the sustainer as a single stage multiple times with different motors to check out deployments, timing, etc. However, I wasn’t smart enough to check battery requirements before I decided on...

Please explain. And can you point me to the reference? Thanks.

Thanks Dugway & mtnmanak, I use VISIO extensively so shold be able to figure it out. Appreciate your help.

I requested the copies of the issues from NAR that have the instructions for the Cluster Box a couple of weeks ago and haven't heard from them or received anything. Slow mail or whatever. If you don't mind could I get a copy from you? You can PM me. Thanks, Stan

Thanks for the feedback. What do you anticipate as the maximum thrust for your testing of a hybrid motor?

Just curious. What does it weigh without the blast deflector? It looks really good, I'm jealous. Someday I'll make one.

Thanks for bringing this everyone's attention. I feel for you as painting can be a lot of work especially if you have to do it over. As I use Rust-Oleum paint and have not had this problem yet, would you mind indicating the paint numbers that are on the back of the cans such as 249088 FLAT GRAY...

I love that the BGMicro relay has SPECIAL FEATURES FAILURE RATE 3.0 PCT. Of course my rocket failure rate is higher so using them would be an improvement.o_O StanO

Let’s see… my batteries are hooked up and I have completed all my continuity checks using the WiFi switches without the e-matches in BP and they were fine. I have turned off WiFi switches for both altimeters and physically disconnected from energetics as I use redundant dual deployment. I then...

Also one could add to Tony's list for clarification the approximate .1cc (.1 gram) used in cable cutters. Stan

Ditto