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- Jun 16, 2011
- Messages
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CATO on the pad. Resulted in the rocket body landing on the rail (fins up, of course). Quite spectacular. Makes me very nervous to fly the one I have tho...
Where do I find a MESS report? I tried to fly one of your J250W-14A DMS motor at Midwest Power today (11/06). It lifted off the rail approx. 3 feet and the rear closurer let go, spitting out the grains. The Wildman Gizmo rocket fell to the ground and the body ended up on the rail. The rail was inside the body. They have photos. Thanks Greg Olson
I am having a hard time finding Elmers Glue-All Max locally. I don't have time to order it before this weekend. Can I use 30 minute epoxy instead? Or an alternate glue?
Gorilla glue or Titebond polyurethane should work, use sparingly. Titebond is supposed to be low foaming, don't know if that or Elmer's is in comparison to Gorilla glue or not.
Charlie,
I intended to do this a long time ago but... Thanks for all your help and attention at AirFest this year. It was awesome having AeroTech on site. I hope you can make it out next year as well.
What is the status on the improvements mentioned above? It has been about 1 1/2 since those comments were made and not much has changed with the website or catalog. I can tell you one piece of info that I used and still use from time to time is the chart that Rouse-Tech Motor Compatibility chart https://www.rouse-tech.com/motorchart.htm. It shows all the motors that fit in a specific case. I realize that there are new motors now that aren't on this chart but an equivalent chart on the AeroTech website would be awesome. Thanks again for your help with things. I have repaired my rocket that had the deployment failure due to my "excessive" use of grease in the delay well. It will be launched again Saturday on an AT I357R. Photo attached for a reminder of which rocket it was.
Any word on when the 3 new loads for the 24/60 will be available from vendors?
Mr. Savoie, I just had another 54mm load chew up a seal disk. I haven't filled out a MESS report or warranty claim yet. (Doing that this weekend)
I was wondering if the alloy has recently changed? The seal disk in question was flown with a K375NW and was the first and only flight on the seal disk.
This is the last disk I had replaced (K1103X) and the damage to the new one is very similar:
I have updated motor files to include the M1340 DMS.
https://www.rocketryforum.com/showthread.php?137261-New-Aerotech-motor-files&p=1637238#post1637238
What happened with the DMS J250W failure?
Charlie, is the rear closure failure on the J250W a known issue, such as a bad batch? I have three of them that I'm excited to use, just hoping the failure rate isn't higher on these.
We are aiming to have them available beginning of 2017. Along with another surprise.
Glue-All Max is the adhesive recommended for now. We have not tested them with 30 minute epoxy so we cannot recommend that before testing. We are looking into other solutions as well.
We are aiming to have them available beginning of 2017. Along with another surprise.
Charlie, any update on the 24mm plugged forward closure design for using the 24/40 RC loads in the standard casing?
Frank
A lil'sparky load? 
Would this apply to the new 29/40-120 reloads as well?
(I purchase most of my motors for the upcoming season at the end of the year, so would like to know if I'll be able to get these)
Thank you!
-Erik
View attachment 305557View attachment 305558
I purchased the Wildman Midwest Power 14 special a few months ago and it came with a 54/2800 case and K990DM reload. I noticed that the case has a machined groove inside one end. This appears to me to be a manufacturing defect, as I have not see n this before on an AT case. I used the case only once (for the K990) and noticed the groove when cleaning it. I have attached photos of the groove. I also noticed that the rear closure is rough to screw on. It is not cross threaded, but offers quite a bit of resistance. It appears to be the threads on the closure and not the case threads, since my other rear closures thread on smoothly and easily.
Sent an email to AT customer service earlier this week. Haven't heard back yet.
That's there by design. They machine a short length of the ID to assure o-ring sealing on a uniform surface instead of the irregular surface straight from the mill.
That's there by design. They machine a short length of the ID to assure o-ring sealing on a uniform surface instead of the irregular surface straight from the mill.
View attachment 305557View attachment 305558
I purchased the Wildman Midwest Power 14 special a few months ago and it came with a 54/2800 case and K990DM reload. I noticed that the case has a machined groove inside one end. This appears to me to be a manufacturing defect, as I have not see n this before on an AT case. I used the case only once (for the K990) and noticed the groove when cleaning it. I have attached photos of the groove. I also noticed that the rear closure is “rough” to screw on. It is not cross threaded, but offers quite a bit of resistance. It appears to be the threads on the closure and not the case threads, since my other rear closures thread on smoothly and easily.
Sent an email to AT customer service earlier this week. Haven't heard back yet.
IIRC, the groove was not machined around the entire inside circumference, only half. Also, the groove was only on one end. When I get home tonight, I will verify this and provide more information - and will measure the the recess distance of the "partial" groove from the end of the case. I have not seen this type of partial groove on any of my other 54 mm cases.
Don't use Gorilla glue? The other 2 manufacturers both recommend Gorilla glue only. What's up with that?
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