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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!😉

He does not have to be there- the load is certified now. It is the K990 Dark Matter. I have the cert docs/data and hope to have the motor files up tomorrow or Sunday.
 
Mark!!! This was how I was going to trick Charlie into having to make the trip!!
 
Do reloads expire? Are they dated? Is there a way to tell how old a reload I buy is?
 
Do reloads expire? Are they dated? Is there a way to tell how old a reload I buy is?

If you have it in hand, there should be a date somewhere on there.

White lightning oxidizes and gets tough to light. That said I have flown 20 year old reloads with some special treatment. I understand that mojave green can basically get impossible to light at a certain point when it ages, but that is different from basic oxidation. The other formulas seem to stay fairly responsive.
 
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?

This motor was absolutely spectacular for the size. Any idea if it will make production, Charlie?
 
This motor was absolutely spectacular for the size. Any idea if it will make production, Charlie?

Many years ago, Aerotech used to do small runs of less common single use motors. Several of these have been brought back as DMS like the i65, the g125. They also made what was a single use 29 in what was called fast white lightning propellant. It was also a G80- nice motor- I bought 10-15 and flew them all.
 
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)? :)
 
Specs on the latest certified motors per Paul with TMT:

K850DM-16A

This motor is a 54 MM-2560 case reload in the Dark Matter propellant. Specifics are as follows:

Total Impulse 1869.13 NS
Max Thrust 1094.56 N
Average 922.6 N
BurnTime 2.028 Seconds
TMT Metric K922 (45% K)
Total Weight 2041 G
Propellant Weight 1224 G


K990DM-14A

This motor is a 54 MM, 24” long Single Use motor, also in the Dark Matter propellant. Specifics are as follows:

Total Impulse 1867.13 NS
Max Thrust 1075.85 N
Average 931.9 N
BurnTime 2.04 Seconds
TMT Metric K931 (45% K)
Total Weight 2109 G
Propellant Weight 1224 G


K2050ST-PS

This motor is a 54 MM-1706 case reload in the Super Thunder propellant and it should get off the pad quick with a ¾ second burntime and a flat 450 pounds of thrust throughout that period. Please take note this is a certified Plugged motor due to its propensity for snuffing delays as all high core speed motors, (Vmax, Warp9, etc.). You also need to glue the grains in the liner as well to insure grains stay in the case through that short burn. Specifics are as follows:

Total Impulse 1384.74 NS
Max Thrust 2086.21 N
Average 1874.97 N
BurnTime 0.73 Seconds
TMT Metric K1874 (8% K)
Total Weight 1292 G
Propellant Weight 674 G

For October we have the M1340W-PS motor, an impressive White Lightning offering in the 98 mm, three grain case equivalent length. This motor is very similar performance to its 98-7680 RMS M1419W sibling but in a much lighter package with the single use case system.

Specifics are as follows:

M1340W-PS

Total Impulse 7368.911 NS
Max Thrust 1865.384 N
Average 1354.23 N
BurnTime 5.48 Seconds
TMT Metric M1354 (44% K)
Total Weight 6985 G
Propellant Weight 2585 G


Congrats to the people at Aerotech Rocketry and I wish them success with these offerings.


Paul Holmes
Tripoli Motor Testing
 
Cool. Looking forward to your report. Looks like I will have to order a bunch of new items on my next order in a few weeks
 
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.
 
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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 K850 for the shorter 2560 case.

iirc motors like DM, Black Jack and Smokey Sam have less total impulse for the same mass of propellant than other motors like White Lightning and such. Something like 15% less total impulse, so it would require a longer casing to get similar total impulse.
 
Many years ago, Aerotech used to do small runs of less common single use motors. Several of these have been brought back as DMS like the i65, the g125. They also made what was a single use 29 in what was called fast white lightning propellant. It was also a G80- nice motor- I bought 10-15 and flew them all.

You mean like these that I still have yet to fly? ;-)


IMG_2070.JPGIMG_2071.JPG
 
29mm HP line will be getting a tune-up shortly. We have released 10 new motors in the past 2-3 months so we will get there eventually. Also look for a threaded plugged 29mm closure and possibly an extended forward closure to hold a longer delay. I don't think you are in the minority on this, we have a lot of requests for those loads in this case. Just a matter of getting to it.

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?
 
lots of numbers and lots of letters. Some people are over worked and under paid
Below is the new motor certifications as posted on the TRA forum..

Aerotech 54/2800 K990DM video [video=youtube;--p4lqZZvUk]https://www.youtube.com/watch?v=--p4lqZZvUk[/video]

I can see being confused.

Tony
__________________________________________________ _____________________-


15 Oct 2016

To All,

I am pleased to announce four new motors having been certified in the last month, all by Aerotech Rocketry, Inc. Certified on the 18th of September were three new motors, and a single motor certified on 9 October, some with with unique properties.

September Certs.

K850DM-16A

This motor is a 54 MM-2560 case reload in the Dark Matter propellant. Specifics are as follows:

Total Impulse 1869.13 NS
Max Thrust 1094.56 N
Average 922.6 N
BurnTime 2.028 Seconds
TMT Metric K922 (45% K)
Total Weight 2041 G
Propellant Weight 1224 G


K990DM-14A

This motor is a 54 MM, 24” long Single Use motor, also in the Dark Matter propellant. Specifics are as follows:

Total Impulse 1867.13 NS
Max Thrust 1075.85 N
Average 931.9 N
BurnTime 2.04 Seconds
TMT Metric K931 (45% K)
Total Weight 2109 G
Propellant Weight 1224 G
 
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lots of numbers and lots of letters. Some people are over worked and under paid
Below is the new motor certifications as posted on the TRA forum..

Aerotech 54/2800 K990DM video [video=youtube;--p4lqZZvUk]https://www.youtube.com/watch?v=--p4lqZZvUk[/video]

I can see being confused.

Tony
__________________________________________________ _____________________-


15 Oct 2016

To All,

I am pleased to announce four new motors having been certified in the last month, all by Aerotech Rocketry, Inc. Certified on the 18th of September were three new motors, and a single motor certified on 9 October, some with with unique properties.

September Certs.

K850DM-16A

This motor is a 54 MM-2560 case reload in the Dark Matter propellant. Specifics are as follows:

Total Impulse 1869.13 NS
Max Thrust 1094.56 N
Average 922.6 N
BurnTime 2.028 Seconds
TMT Metric K922 (45% K)
Total Weight 2041 G
Propellant Weight 1224 G


K990DM-14A

This motor is a 54 MM, 24” long Single Use motor, also in the Dark Matter propellant. Specifics are as follows:

Total Impulse 1867.13 NS
Max Thrust 1075.85 N
Average 931.9 N
BurnTime 2.04 Seconds
TMT Metric K931 (45% K)
Total Weight 2109 G
Propellant Weight 1224 G

This letter is still wrong.
 
It was a copy and paste from Paul. Typos happen. From the post:

K850DM-16A

This motor is a 54 MM-2560 case reload in the Dark Matter propellant. Specifics are as follows:

Total Impulse 1869.13 NS
Max Thrust 1094.56 N
Average 922.6 N
BurnTime 2.028 Seconds
TMT Metric K922 (45% K)
Total Weight 2041 G
Propellant Weight 1224 G


K990DM-14A

This motor is a 54 MM, 24” long Single Use motor, also in the Dark Matter propellant. Specifics are as follows:

Total Impulse 1867.13 NS
Max Thrust 1075.85 N
Average 931.9 N
BurnTime 2.04 Seconds
TMT Metric K931 (45% K)
Total Weight 2109 G
Propellant Weight 1224 G

Per above, the K850 is a reload for the 2560 case while the K990 is a single use DMS motor likely using the same case as the L1000W DMS. A difference of 2 NS between the two, or .012 s in burn time, or 9.3 N of average thrus - virtually identical. The difference in classification (K850 versus K990) would be product differentiation I would imagine (L1000W DMS versus L1090 RMS, among others, although they didn't do that for the H550ST DMS/RMS for some reason).

Regarding which one is the actual DMS/RMS version? I'll defer to whatever Charlie said :).
 
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