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0.685" for both. https://web.archive.org/web/20221017004701/https://www.rocketmotorparts.com/page/motor-assembly-drawings

Too bad Norm Macdonald isn't alive to give his eulogy.

The new TRA Unified Safety Code did away with the separate safe distance tables for commercial vs. research motors.

Welcome! I'm just up Rt. 100 in Pottstown. MDRA is the way to go if you are looking to get into HPR. Also look into LDRS in Potter, NY this June. The last time it was held here was 2015, so try not to miss it if you can make it. It's quite a show!

If you're referring to the ~1/4" thick 54mm ring, that is a spacer for using AT/CTI motors.

Brand new MARSA 33LHD with LCD Screen and Gyro tilt module. Not looking to separate anything. All brand new in the box with instructions. $250 shipped. Payment accepted via PayPal. If sending G&S add 3% to cover fees.

This is one of my big fears, and why I always connect the igniter to the launch leads before inserting it into the motor.

I think I found the root cause. I saved the spent L2500 reload parts so I measured it. The liner is 12.813", but the assembly drawing shows 12.688". For a comparison my M4500 liner is 18.75", which exactly matches the assemble drawing and is left with ~1/16 gap when the closure is tightened.

Aerotech recommends using a strap wrench to tighten the aft closure.

Here is the only one I saw. Opportunity: LCO Launch Control Officer Slot: LCO When: 6/6/2024 03:00 PM - 05:00 PM Who: Jeff Boldig

There is a volunteering link under histories in your member profile.

I had the same issue with an L2500 I flew back in December even after tightening the aft closure with a strap wrench.

Same with the L1365M.

Sounds like a plan... :D

It was your post which rekindled my motivation to finish this rocket. I originally wanted to do a Fatboy O load, but I won't have the time to finish the build and test the motor. I'd be up for something like this. Heck, I'd even be up for a drag race if you wanted. Only thing is I'd like to...

Thanks! That flight is the picture in my avatar. I forget what I called it on the flight card, but it came out to a K3000 with a 0.85 sec. burn. The screech/howl sound effect is totally unintended.

That's me. I have another one of these loads ready for LDRS. I'm also working on an extended 8" DX3. Hoping to fly it on an O5500X.

I saw this was added to the RCS store. Does that mean this going to be released?

You'll need an old PC with Windows XP or Vista as well. I wasn't able to figure out how to get it to work with anything Windows 7 or later.

Looks like Kenny's domain expired.