pyrobob
Well-Known Member
- Joined
- Dec 6, 2013
- Messages
- 2,439
- Reaction score
- 48
Charlie
Thanks for the info on the L-1000. Makes me feel better about flying the replacements. Plus for taking the time to respond to our questions.
++1
Charlie
Thanks for the info on the L-1000. Makes me feel better about flying the replacements. Plus for taking the time to respond to our questions.
What I believe to be a failure in the MESS system. Failures should be reported and openly discussed.... and I think openly tracked. But the fear of economic impact keeps failures in this dark world... which leads to distrust. As much as I wish we could all have numbers of failures and detailed reports on why, I also understand people are panicky. Which is why the whole system is broken.
I don't think that you would see a ton of cato's anyway, as I don't think the numbers are that high.
Clear as mud, with the flyer reporting he called and was told this was a new motor. Perhaps he was told it was an unaffected lot, and it just happened to become an affected lot. That's what I'm trying to figure out.
What I believe to be a failure in the MESS system. Failures should be reported and openly discussed.... and I think openly tracked. But the fear of economic impact keeps failures in this dark world... which leads to distrust. As much as I wish we could all have numbers of failures and detailed reports on why, I also understand people are panicky. Which is why the whole system is broken.
Dizwolf's post in the L1000 cato thread asks the valid question of the treatment of the motor after leaving Aerotech as a possible cause. Do you simulate in the lab the temperature/humidity/abuse cycles an engine may see in the real world? If the motor has a small but functional safety margin you may not see a failure in testing fresh motors, but a small normally inconsequential degradation from environmental or handling issues may put it over the edge. I am not saying this is the issue or that there is still an issue, I'm just curious if you test for this as it may explain a difference onsite testing and results in the field. Another possibility would be looking for commonalities in conditions at the launch sites where the issues happened.
Yeah I though the MESS report was to inform manufacturers of issues or potential issues too. This is why we prefer the customer to contact warranty directly whenever possible.
DaveWhat I believe to be a failure in the MESS system. Failures should be reported and openly discussed.... and I think openly tracked. But the fear of economic impact keeps failures in this dark world... which leads to distrust. As much as I wish we could all have numbers of failures and detailed reports on why, I also understand people are panicky. Which is why the whole system is broken.
Yeah I though the MESS report was to inform manufacturers of issues or potential issues too. This is why we prefer the customer to contact warranty directly whenever possible.
The NAR is the certifying agency and consumers report failures of certified motors for statistical analysis. Hence the name M.E.S.S.
The NAR would never report failures to manufacturers as a third party middleman.
Consumers report product failures to manufacturers for warranty claims.
I just got back from BALLS where we had a great time, I'll have some news about some new stuff as well as answer the unanswered questions either tomorrow or Wednesday. View attachment 273257
I just got back from BALLS where we had a great time, I'll have some news about some new stuff as well as answer the unanswered questions either tomorrow or Wednesday. View attachment 273257
Now this one looks exiting - the kind of exiting where I can't resist of making a fool of myself by speculating.
Counting pixels, the motor appears to be about 10-20% longer than the longest 98mm comparable casings in the market. Tony's picture doesn't look like White Lightning, so I assume we're talking about Propellant-X. Looks like an O7000 with 22-24kNs. How many rockets do you plan to shred with that thing? ;-)
Reinhard
Karl looks to be holding a DMS single use motor. Size?
Hi AT folks-
I'm hoping you can briefly discuss a couple of small-motor development points that I believe you're working on... Appreciate any info you can provide on:
- 24mm sparky reloads (as pictured on your website with the caption "Barbara Grocki`s rocket on a 24mm diameter `F`-class Aerotech Metalstorm motor at MDRA`s Red Glare VIII Launch (photo by Dan Michael)")
- development of (or challenges associated with) additional reloads for the 24/60 case
- any progress on re-issuing a redline reload for the 29/40-120 case
- Are any other propellant types being examined for the 29/40-120 case? I'd love to see a sparky!
Thanks in advance!
Erik McKee
Wow. 55 inches. As Reinhard guesstimated, that would make it O-size,
Enter your email address to join: