... Charlie is no longer working for RCS/AeroTech.
...
Well that's some news, at least to me. Thanks for starting this thread Charlie and good luck with whatever's next.
... Charlie is no longer working for RCS/AeroTech.
...
What is Charlie doing now?
Would like to get the warranty hardware before its one year anniversary.[emoji3]The 38mm end burning forward closures were not on order for whatever reason. I am correcting that now.
I have been looking at many vendors to find the 54mm adaptor system out of stock. Any idea on the current lead time?
Would like to get the warranty hardware before its one year anniversary.[emoji3]
we have them in stock ready to shipI have been looking at many vendors to find the 54mm adaptor system out of stock. Any idea on the current lead time?
Question for Aerotech. Why are there no Mojave Green 38mm DMS motors? 29mm has a few single-use/DMS greens but no 38’s.
We don't have a DOT approval for single use high-power greens as I recall. We could however package the grains as a reload and the customer could assemble it...
i have an 18/20 case, got it back in the 90's when it came out. no doubt it has its place in the line up, and i sure do prefer the 18mm white lightning loads to the q-jet black loads.
Not sure you can share it, but is there a specific reason why you don't have DOT approval for greens? Or just "not worth the time at this point?"
D21s are available at RocketryWorks. No D10s (shown as discontinued by manufacturer).
Hi Tom, we discontinued the D10W and D21T because our 18mm case vendor sent us a bad batch of the casings and we lost confidence that they would be able to produce reliable molded cases moving forward. It is possible in the future we could approach the vendor that makes our 24 & 29mm casings, but that would involve a relatively large mold expenditure that isn’t currently in our budget.
To me the loss of the D21 is heartbreaking... I loved these motors, especially the D21's... but thanks for giving the reason. It makes sense since I'd rather not have detonations in the field... Unfortunately I can't see springing for the 18 mm case at the moment. While the short delay D24 would work just as well as the D21 in my Estes Phoenix, I would prefer to use a single use motor in anything that flies over 500 feet... The New England launch scene isn't conducive to recovering high flying narrow diameter rockets. (As in, I can't cram my chute release into them and there are just too dang many trees around here).
Only for the sake of technical accuracy, no APCP motor ever “detonates”. The case bursts because the pressure within exceeds the case’s ability to withstand such pressure.
A true detonation would release much more energy and consume nearly all of the propellant.
It’s important because a significant portion of our lawsuit was correcting misunderstandings about how rocket motors work.
Did you look into G12 glass/epoxy? I've got a quote in with Franklin Fibre for 500 and 1000 feet. I'll let you know what they say. Even if it adds a $ or so to the cost, it would be worth it and you could also bring back the longer 18mm such as the E45 and F55 Make them with no thrust ring like the 1990 style. Tape still worksHi Tom, we discontinued the D10W and D21T because our 18mm case vendor sent us a bad batch of the casings and we lost confidence that they would be able to produce reliable molded cases moving forward.
Did you look into G12 glass/epoxy? I've got a quote in with Franklin Fibre for 500 and 1000 feet. I'll let you know what they say. Even if it adds a $ or so to the cost, it would be worth it and you could also bring back the longer 18mm such as the E45 and F55 Make them with no thrust ring like the 1990 style. Tape still works
To me the loss of the D21 is heartbreaking... I loved these motors, especially the D21's...
Unfortunately I can't see springing for the 18 mm case at the moment.
There's barely enough market for the D21/D10 motors at their current price.
I'm a big fan of the Q-jets D16 and always found the price of the D21/D10 to be too high for my taste.With Q-Jets widely available at 1/2 the price of the old D21/D10, I would not look twice at the oldies.
54mm Reload adapter system question. Will there ever be a thredded floating style closure that will work with the adapter system? One of my projects makes use of the threaded forward closure as a shock cord attachment point and I can't use the adapter system because the tapped floating forward closure does not exist.
The Q-Jets don't replace them. The D21 and D10 had significantly higher total impulse and initial thrust, and really could do things the Q-Jets can't.
I'm a big fan of the Q-jets D16 and always found the price of the D21/D10 to be too high for my taste.
BUT....
The Q-Jets don't replace them. The D21 and D10 had significantly higher total impulse and initial thrust, and really could do things the Q-Jets can't.
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