New AT longburn motor

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AP aroma

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Did I happen to hear about a new Aerotech long burn G motor? A G9 or something like that?

Thx
 

Nytrunner

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The H13 is out.

There have been G8 and G12 motors prototyped, but I'm not sure if the G12 got fully certified and on-market
 

aerostadt

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The H13 is out.

There have been G8 and G12 motors prototyped, but I'm not sure if the G12 got fully certified and on-market
The reloadable 32 mm G12 has been out for sometime. Frank and I have been flying them in rocket gliders. I have several in my inventory. I bought mine at Balsa Machining Services. I think our local club vendor has them, too.

 
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Rocketjunkie

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There will be a DMS 29 mm G12, also a 29 mm H13, both SuperThunder end burners. IIRC, the H13 is certified, not sure about the G12.
 

Neutron95

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The reloadable 32 mm G12 has been out for sometime. Frank and I have been flying them in rocket gliders. I have several in my inventory. I bought mine at Balsa Machining Services. I think our local club vendor has them, too.

Is there any source for the motor hardware out there? I'm kind of interested in those motors, but the hardware is out of production as far as I can tell.
 

aerostadt

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Is there any source for the motor hardware out there? I'm kind of interested in those motors, but the hardware is out of production as far as I can tell.
Looks like Balsa Machining Service is saying that the RMS-RC 32/60-100 case listed under "Rocket Motors", then "Estes and Aerotech Low Power" has been DISCONTINUED. You are right!!
 
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Mike Haberer

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AT G12 29mm is listed on Thrustcurve as a TRA certified motor, cert date 2018-08-26 > https://www.thrustcurve.org/motors/AeroTech/G12/
So, it is certified, but not on-market? This is NOT the same as the G12-RCT 32mm, which is also there...

AT H13 29mm is listed on Thrustcurve as a TRA certified motor, cert date 2020-09-10 > https://www.thrustcurve.org/motors/AeroTech/H13ST/

Hmmmm, I have visions of a 3 cluster model (Delta Heavy or Falcon Heavy) with two outboard high max thrust for lift off and a long burn in the center. Drop the outboards on burnout. Apogee deploy on outboards, DD on the sustainer. Methinks I'll model up a draft in Rocksim to see how high it would go on 13s (G12) and 15s (H13) burn. It would be interesting to see if you can build it so that it can fly MPR on small fields w/ G's and HPR w/ H's. Would have to keep the diameter small'ish, maybe 1.64...
 

AeroTech

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The G8ST and G12ST DMS single-use motors were retested with a new case and liner design because the first version got too hot. They are not yet available.

AT G12 29mm is listed on Thrustcurve as a TRA certified motor, cert date 2018-08-26 > https://www.thrustcurve.org/motors/AeroTech/G12/
So, it is certified, but not on-market? This is NOT the same as the G12-RCT 32mm, which is also there...

AT H13 29mm is listed on Thrustcurve as a TRA certified motor, cert date 2020-09-10 > https://www.thrustcurve.org/motors/AeroTech/H13ST/

Hmmmm, I have visions of a 3 cluster model (Delta Heavy or Falcon Heavy) with two outboard high max thrust for lift off and a long burn in the center. Drop the outboards on burnout. Apogee deploy on outboards, DD on the sustainer. Methinks I'll model up a draft in Rocksim to see how high it would go on 13s (G12) and 15s (H13) burn. It would be interesting to see if you can build it so that it can fly MPR on small fields w/ G's and HPR w/ H's. Would have to keep the diameter small'ish, maybe 1.64...
 

aerostadt

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This may have been answered somewhere and I missed it. So, are there two different H13ST-P motors, one with a thrust-ring and one without a thrust ring? Does anyone sell the motor with the thrust ring?
 

Buckeye

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This may have been answered somewhere and I missed it. So, are there two different H13ST-P motors, one with a thrust-ring and one without a thrust ring? Does anyone sell the motor with the thrust ring?
Mine have thrust rings. Never heard of a variant without one.
 

Maxwelljets

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Rocketjunkie

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1/4" is plenty for a H13. I've used 1/2" on a J700 (SU version of J800 reload).
 

beeblebrox

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Masking Tape Thrust Ring Chart for you noobs... NEVER Use that Blue tape... NEVER Use Duct Tape...

1/4" for Estes 13mm & 18mm
1/2" for Composite 18mm & 24mm Lower thrust 29mm & Estes 24mm
3/4" for all 29mm Composite or Black Powder, 38mm Thrust <=200nt.
1.0" 38mm & 54mm thrust <= 1000nt.
Larger or Higher thrust, just don't do it...

This comes from a half century of experience...
 

jimzcatz

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your chart is just plain trash, tape hase been used on 4" "O" motors with complete successI have personnally used it on a Vulcan L750.
 

rfjustin

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your chart is just plain trash, tape hase been used on 4" "O" motors with complete successI have personnally used it on a Vulcan L750.
"your chart is just plain trash"... Is there a specific reason why you feel it necessary to be prickly to everyone, all the time here? Honestly, you need a time-out...
 

3stoogesrocketry

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I remember Paul Robinson using masking tape on a 6 inch O/P class motor. Its tried and true , everybody has their own way to fly and it is best in their opinion.
 
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