I am not a forensic rocket motor Doctor, nor do I play one on TV, but it appears the nozzle was installed backwards. The 'dimple' looks to be a complete case burn thru which would happen if the seal and 'o' ring wasn't tite against the grain and it looks like there is a phenolic ring seen thru this burn thru, which should have been against the closure. The distance looks about right too, but it just could have been a simple sealing failure. I've thrashed TWO H-165 reloads IN a ROW (!) after building a 38 and 54 mm motor the same morning because of an o-ring in the delay train I kept leaving out. Once you've seated that delay-it ain't coming out without destruction of same. Solution? CTI, baby! (and yes- I do love my AT stuff!-18 cases worth...) We all learn from our fellow flyers. Straight smoke and good chutes, my brother!
Originally Posted by cwbullet
I'd like to have a smart phone, but I don't qualify.
I'm not user friendly, I have Anti-Social Security.
I don't always do things, but when I do, I think I'm busy
I'm usually left holding the bag. If I got a Right bag, maybe it would be better.
Why is it a launch lug? They are usually too small to carry your rocket to the pad with.
Why do I need an altimeter that talks back to me? I can get that at home.