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Model Forum / General / Rockets / January 2006How long will Aerotech hobby line reloadable motor hardware (RMS) last?
I have just purchased some Aerotech RMS hardware. I noticed that the thread engagement is very small on the closures. How long ... How many times can I reload before the threads fail from fatigue and the motor comes appart? I don't want it to do this inside one of my nice rockets. Anyone have any experience? Or any experts out there that can answer? Thanks, KT I have used some 24 mm AT hardware and reloaded them 20-30 times without a failure. Dont over torque them together and make sure yu dont cross thread them. I have also used AT 29 mm 40-120 about the same amount and no problems. Steve Lubecki >I have just purchased some Aerotech RMS hardware. I noticed that the >thread [quoted text clipped - 6 lines] > Thanks, > KT It should last about 101 reuses >>I have just purchased some Aerotech RMS hardware. I noticed that the >>thread [quoted text clipped - 8 lines] > >It should last about 101 reuses My experience is that I can't get 101 reuses out of ANY flight hardware before loss, and my high performance flights have much higher loss rates. > My experience is that I can't get 101 reuses out of ANY flight > hardware before loss, and my high performance flights have much higher > loss rates. Yep <grin> By the way Alan, did you ever write a post for a small business blog about shipping costs vs handeing ? I read it today, but it probably was a different Alan Jones. >> My experience is that I can't get 101 reuses out of ANY flight >> hardware before loss, and my high performance flights have much higher [quoted text clipped - 4 lines] >By the way Alan, did you ever write a post for a small business blog about >shipping costs vs handeing ? I did not blog with that small business. >I read it today, but it probably was a different Alan Jones. There are just to many of us. That's why I'm using alanvj@nospam. I've used by 29/40-120 and 24/40 dozens of times each, and they still look fine. That part of the motor doesn't get very hot, so it shouldn't be having much problem with fatigue. -- David >I have just purchased some Aerotech RMS hardware. I noticed that the >thread [quoted text clipped - 6 lines] > Thanks, > KT >I have just purchased some Aerotech RMS hardware. I noticed that the thread > engagement is very small on the closures. How long ... How many times can I [quoted text clipped - 4 lines] > Thanks, > KT -------------- I have them all... got 'em in 1997... still going. Always SUPER clean the threads (I use gun cleaners)... and just be careful when you put 'em together. HDS >>I have just purchased some Aerotech RMS hardware. I noticed that the thread >>engagement is very small on the closures. How long ... How many times can I [quoted text clipped - 11 lines] > > HDS WD40 works pretty good too. Ted Novak TRA#5512 IEAS#75 > I have them all... got 'em in 1997... still going. Always SUPER clean the threads (I use > gun cleaners)... and just be careful when you put 'em together. Spit works, and well as a $1 store orange wipe ;) >I have just purchased some Aerotech RMS hardware. I noticed that the thread >engagement is very small on the closures. How long ... How many times can I [quoted text clipped - 4 lines] >Thanks, >KT You'll probably lose it long before it could wear out. I've had and used extentsively my 24/40 and 29/40-120 casings for over a decade. Regards, Bob Bernatchez NAR 29996 |
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