They ship them with the thrust rings off, you have to glue them on now. Even if they're on, it doesn't hurt to add a little CA as a backup. More troubling to me is the forward closures... I had two flights at LDRS with them, and both of them blew out the forward closures. The first one blew right away, reaching an apogee of about 1,000' instead of 11,000', and was forceful enough that it blew the guts out the back and took the Aeropack screw-on cap with it. The rocket had a solid builkhead in front of the motor mount, so fortunately it did no damage to the rocket. Since AT was on-site, we gathered up the pieces and brought them to their table, they gave me a replacement.
The replacement went all the way to 11,600', and I was quite satisfied... until I got home and took out the motor. Seems the forward closure had actually let go, but apparently it was late enough that it didn't have a significant effect on the flight. I'm done with the L1000 DMS... at least until I see an actual advisory from AT that they've fixed the forward closure issues, which seems to be why they're failing now.
Just glue fins on it and let 'er rip!If there have been recalls on the L1000 manufactured after that, then I would like to know. I do not want to fly an L1000 that is not reliable.
Who would accept payment in reloads?
Do it in Mojave Green. A single use in that, assuming it holds together, could be awesome.
With all the attention 4-to-3-inch two stagers get, the lack of an extra long 75mm is a bummer. For some bizarre reason Cesaroni only ever offered one performance motor in that size, and now it is literally unobtainable.
Loki may fill that gap, but I am curious if simply stuffing an extra grain on top of an M685 would be a benefit.
Oops, I left off the 38mm SU motors. The big 98mm ST motors were on the earlier list.
My understanding based on the ad in the last Sport Rocketry is that there are other ST motors in the pipeline, like a 54mm one, but those aren't on thrustcurve yet.
Some folks were flying 29mm single use demo motors at XPRS, maybe an F67, faster white lightning?
Any specific details on the motor or idea what the plan is for that one?
I have some of the data for the new motors. I might get to it one of these day. His is what happens when one works 12-14 hours a day for a bit.
Charlie
Gerald has a picture of your AT tent at Black Rock. On one of the tables there is what looks like a 3" single use motor? What is it?
Thanks
Gary
Charlie- will you or someone else from AT be at Midwest Power this year?
Keep in mind, that answer HAS to be YES. Since we are flying uncertified motors in the drag race. The motor manufacturer NEEDS to be present.
See you there. I'll save you a seat at the Pizza party!
Mark!!! This was how I was going to trick Charlie into having to make the trip!!
Maybe Charlie wants to enter into the drag race? Or he could demo the new 29/40-120 reloads that are supposedly coming out (red and metalstorm)?
I am confused, is the K990dm a reload for the 2800 case or a single use? It's total impulse appears to be less then the K850dm for the shorter 2560 case.
Cool. I'll be here when you do. Any chance of getting a 29mm Super Thunder? By the way, I flew my first Metalstorm today and I can tell you it won't be my last. What a ride. Loud, fast, bright, sparkie...what's not to love?
I cant watch at work, but you'll get more visibility with a new thread. Also fill out a MESS report https://www.motorcato.org/ and let Aerotech know for a warranty claim.This post is definitely not to trash AT. I simply want to know if anyone has any input as to why this may have happened. I know the 29mm G71R-7 is an old motor, but I've launched three of them prior to today and never had a problem. Bad delay grain, ignitor not installed all the way, or maybe even grease on the delay grain? I have no idea. If anyone can share some input, I'd appreciate it. Thanks! https://youtu.be/qKD2t6Jl3mQ
You guys are making this launch difficult to resist.
I cant watch at work, but you'll get more visibility with a new thread. Also fill out a MESS report https://www.motorcato.org/ and let Aerotech know for a warranty claim.
I believe I flew the first ever certified K2050 in my Nike Smoke yesterday at TCC October Skies -
It was spectacular. More later.
For those that have not seen it. Aerotech has put out a grain glueing advisory for certain 75 and 98 mm motors.
https://www.aerotech-rocketry.com/news.aspx?y=2016#n2172
Speaking of the L1000- are the thrust rings ok on these now? Thinking of picking one of these up at some point.
They ship them with the thrust rings off, you have to glue them on now. Even if they're on, it doesn't hurt to add a little CA as a backup. More troubling to me is the forward closures... I had two flights at LDRS with them, and both of them blew out the forward closures. The first one blew right away, reaching an apogee of about 1,000' instead of 11,000', and was forceful enough that it blew the guts out the back and took the Aeropack screw-on cap with it. The rocket had a solid builkhead in front of the motor mount, so fortunately it did no damage to the rocket. Since AT was on-site, we gathered up the pieces and brought them to their table, they gave me a replacement.
The replacement went all the way to 11,600', and I was quite satisfied... until I got home and took out the motor. Seems the forward closure had actually let go, but apparently it was late enough that it didn't have a significant effect on the flight. I'm done with the L1000 DMS... at least until I see an actual advisory from AT that they've fixed the forward closure issues, which seems to be why they're failing now.
Both of these issues have been resolved. If you have an L1000 let go be sure to at least send us the date codes on the tube so we can verify that it was indeed one of the older ones.
This post is definitely not to trash AT. I simply want to know if anyone has any input as to why this may have happened. I know the 29mm G71R-7 is an old motor, but I've launched three of them prior to today and never had a problem. Bad delay grain, ignitor not installed all the way, or maybe even grease on the delay grain? I have no idea. If anyone can share some input, I'd appreciate it. Thanks! https://youtu.be/qKD2t6Jl3mQ
If you don't come to MWP, I swear I'm not buying another AT motor for at least a week!
Thanks for the info! Could you tell us when the "good ones" started being produced, so I can check something before I buy?
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