Aero Tech motor spacers?

troj said:

Close, but the grains are short in those motors, to allow space for the forward seal disc -- the disc is there because some motors generate enough pressure to need the better seal provided by the disc.

-Kevin

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Darn it, I put the horse before the cart again.:bang:

qquake2k said:

As far as I know, the motor would be assembled just as if you were going to put it in a 29/240 case. The only difference is the spacer. The forward closure sits on top of the propellant grains and forward insulator just as in a 240 case, but the spacer and forward retaining ring hold it tight. I have a 29/240 case if you want to use it on Saturday.

https://www.aerotech-rocketry.com/c...gs/29mm_hp_rms/29-240/29-240_h180w-m_assy.pdf

https://www.aerotech-rocketry.com/u...d1b-330609b44a63_29mm_reload_adapter_inst.pdf

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That was pretty much the conclusion I arrived at based on the assembly drawings for both the 29-240 w H180 and the 29 RAS. I was just checking to see that I wasn't going off into the wild blue yonder...a little knowledge being a dangerous thing.

Thanks for the offer of your case, Jim. I'm anxious to try out my 29mm RAS that I bought from the Wildman some time ago but have never used so that's what I'm going to use this Saturday. My original thought when I bought it was that I'd use it strictly as a 29-240 and keep the spacers just in case.

BTW, I bought yet another Dr. Rocket case from Troj. LOL! It's also a 29-240 case.