PokerJones
Well-Known Member
What is a "quick release pin?"
It's an attachment point on his machined bulkheads.
https://ape-rc.com/#!/4-Machined-Bulkhead/p/59245081/category=11909535
What is a "quick release pin?"
Really sorry about the result on Sunday. But take heart in the fact that because you are willing test new ideas and boldly go where no man has gone before, you have taught us a whole lot about a whole lot of things:
(1) That Punisher is a crazy rocket. It's itching for you to rebuild it minimum diameter (since you you may have lost the motor case anyway).
(2) You have crazy build skills. Your motor mount looked better than my finished rockets!
(3) The way you are handling the setbacks is modeling the behaviors I would like to pass on to my kids...it's easy to be graceful when you're ahead. Grace under pressure is the real test of character. Thank you so much for that.
(4) On my own L3 project (just underway) I'll use different search terms for the hardware at McMaster-Carr. I'll search for "really freakin' hard to get off" pins instead of the QR ones (Sorry, I had to do that. It was a hanging curve...somebody had to swing at it.)
Good luck with the rebuild and next (successful) cert flight.
Excellent video. Love the data overlay. Dashware?
Great video! (other than the whole "losing the booster" part). What did you use for your drogue chute?
I've just come to realize thatin the end it's just a hobby. So I lost a booster and I didn't get my L3. That means I have to/get to build a new booster, have to/get to fly another M, and I didn't get a piece of paper that says I can fly more Ms.
4. Yes, do a search for PITA pins or something along those lines. :wink:
I have a couple ideas for replacing the pins. I'll dig into that soon.
I looked at the bulkhead and pin this morning. I have a really hard time believing that the shock cord managed to pull the pin free. I think I just didn't get it seated all the way.
Anyway, I think I'm going to replace them with clevis pins that have a cotter pin on one end and a head on the other. It will be more secure and there shouldn't be any doubt that the pin will stay in place once the cotter it installed.
View attachment 303676
I looked at the bulkhead and pin this morning. I have a really hard time believing that the shock cord managed to pull the pin free. I think I just didn't get it seated all the way.
Anyway, I think I'm going to replace them with clevis pins that have a cotter pin on one end and a head on the other. It will be more secure and there shouldn't be any doubt that the pin will stay in place once the cotter it installed.
View attachment 303676
Just out of curiosity, why won't a 10-32 screw that's threaded all the way through work? Are you worried about the thread abrading the harness?
That was exactly my concern.
That was exactly my concern.
That was exactly my concern.
I'm way ahead of you Kevin. The booster was falling slower than the payload bay. It should have been carried farther by the wind. In my opinion it is East of the wash in the red box on the picture. I sent this picture to James so he could forward it to Mr. Maddox. If it doesn't show up soon I might have to take a drive over there myself.
View attachment 303800
It was pretty close, I failed to ensure that the quick release pin was seated all the way through the lug.
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