New Motors Certified January 2023

[Alan Whitmore]

The Tripoli Motor Testing Committee met on December 4, 2022 and January 7, 2023 and certified three new Aerotech motors.

1. K62N-P. This is a dual-thrust 54mm single-use motor using the Warp9 propellant with a total impulse of 1438.5 N.s and an average thrust of 62.5 N.

2. J1265ST-14A. A single use 54mm motor made from the Super Thunder propellant with a total impulse of 1072.3 N.s and an average thrust of 1261.1 N.

3. M2225WS-PS. This is a 75mm reload kit for the 76/5120 hardware. It uses the Super White Lightning propellant and has a total impulse of 5205 N.s and an average thrust of 2239 N.

Alan Whitmore, Chair
TMT

 

[cerving]

Any idea why the thrust curve for the first J1265 sample was so different than the other tests?

 

[cwbullet]

Hmm. A 25 second burn for a K? That must have a special use in mind.

 

[FredA]

K62 - the new hamster killer for Gary - cool motor!

 

[Alan Whitmore]

Any idea why the thrust curve for the first J1370 sample was so different than the other tests?

None. I sent the spent case back to Aerotech for Karl to cut up for a necropsy, but I haven't heard back yet. A

 

[Alan Whitmore]

None. I sent the spent case back to Aerotech for Karl to cut up for a necropsy, but I haven't heard back yet. A

BTAIM, the other two are so similar that I expect the performance of the motor to be almost identical to burns 2 and 3. A

 

[AeroTech]

K62 - the new hamster killer for Gary - cool motor!

That was actually the motor I flew last year at HD11 to nearly 21,000 feet.

 

[AeroTech]

Any idea why the thrust curve for the first J1265 sample was so different than the other tests?

Clearly a burning surface regression anomaly on one of the grains.

 

[Theory]

that 75/5120 looks to be the "go to" 75 mm case!

Blue, red, X, Super White, Sparky, Green, and White loads...

 

[Neutronium95]

that 75/5120 looks to be the "go to" 75 mm case!

Blue, red, X, Super White, Sparky, Green, and White loads...

The 4 grain cases seem to be really well supported by Aerotech across most sizes. Just take a look at the plethora of reloads available in the 54/1706 for example.

 

[n3tjm]

that 75/5120 looks to be the "go to" 75 mm case!

Blue, red, X, Super White, Sparky, Green, and White loads...

That's why I was hoping Santa would bring me one for Christmas. No luck this year