> Model Rockets > Launch Equipment > Misc. : Aerotech Reloadable Motor System 24/40 aro91241

Reloadable Motor System 24/40

This Model Rocket Motor Reload Kit Contains One Reloadable Motor System (RMS) 24/40 Motor Hardware Designed by Aerotech. Federal Law Prohibits the Sale of This Product to Persons Under Age 18.

Aerotech Reloadable Motor System 24/40
 Aerotech # aro91241
Retail $49.99  SAVE 7% !
Aerotech Item # aro91241
Specifications :
  • Motor Diameter: 0.94" (24mm)
  • Motor Length: 2.75" (70mm)
  • Assembled Weight: 1.6oz - 2.4oz (45g - 67g)
  • Aerotech Product Number: 91241
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Spotlight Review

"Great way to add power to those Estes kits"
This set allows you to use F motors in those 24mm estes kits I've used it for three launches now, and it was very fun watching the small Estes kits scream off the pad on an F motor instead of a D or E.

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  • For use with RMS 24mm D, E, F reloads.
  • The RMS 24/40 motor hardware can be used with Aerotech's D9, D15, E11, E18, E28, F12, F24, and F39 rocket motor reloads kits.
  • Primary use in single stage rockets.
  • They deliver power at the lowest per flight cost available in hobby rocketry.
  • RMS motors produce far less non-biodegradable waste than single-use motors.
  • Reflects the same reliablity, quality, and professional design.
  • Assembly and operation instructions provided.
  • Product warranty policies included.


  • Motor Diameter: 0.94" (24mm)
  • Motor Length: 2.75" (70mm)
  • Assembled Weight: 1.6oz - 2.4oz (45g - 67g)
  • Aerotech Product Number: 91241


  • 24mm Aft Closure
  • 24mm Case
  • 24mm Forward Closure
  • Grease

Requirements & Suggestions

  • Motor Reload Kit (Refer to FEATURES)
  • How To Build a Model Rocket
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Write a Review  View All Reviews
"Changed rocketry for me!"
When I first got back into rocketry I purchased the 24/40 case from HobbyLinc. Having only launched on Estes BP motors I was amazed at the difference that a good composite motor system makes. I've been able to launch much heavier rockets safely and to higher altitudes than I ever though possible with BP. At first I was anxious about the reloading process having heard stories of destroyed rockets due to improperly assembled motors but after the first flight all my concerns were laid to rest. The motors are easy and quick to assemble and I often reload the casing multiple times at club launches. Some rubber gloves and baby wipes help a lot when reloading at the range. The difficulty of cleaning cases seems to be a bit overstated by some. I've never used more than simple green and water and mine come out sparkling clean each time. (I've even run them through the dishwasher when the wife isn't home.) Every person who launches model rockets should be using these casings. Its cheaper in the long run and allows you to launch bigger rockets or get more height out of smaller ones. The best part is the better selection of motors and the ability to purchase reloads for some motors without having to pay the hazmat fee associated with prebuilts.

"Awesome product i love"
Great starter re loadable engine kit. I have several flawless flights with this motor tube and have used it not only for personal use but also as a training tool for others in the 4-H rocketry program. I am very pleased with the quality and workmanship involved in the making of this motor system. PRO'S easy to reload easy to clean well written instructions. CON'S Lots of small parts involved so not for younger children

"Solid piece of hardware"
Small, but essentially a carbon copy of the larger versions of the RMS system. I now have two, and have had no failures in many many cycles. Only downside is need for cleaning. Use a good grease, clean them as soon as possible after using, and they should last a very long time. Many suggestions out there on cleaning, I prefer to soak a bit in white vinegar, then wipe down with paper towels and Q-tips. Baby wipes will do the job if you need to do a quick turn on the field.


  • This reload kit is intended to be used only with AeroTech Reloadable Motor System Kits.
  • Read and follow the safety codes of the National Association of Rocketry (NAR) and the Tripoli Rocketry Association and comply with all federal, state and local laws in all activities with hobby rockets.
  • Damaged or defective reloads should be returned to Aerotech.

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