Black and yellow composite model rocker motor with a metal rod on a white background
Composite model rocket motor with packaging and instructions on a white background
Black and yellow composite model rocker motor with a metal rod on a white background
Composite model rocket motor with packaging and instructions on a white background

AeroTech G38-4FJ 29mm x 124mm Single-Use 1-Motor Pack 73804

$30.79 $38.99
Free CONUS Economy Shipping on All Orders $100.00 or More
*This is a product we must order from a distributor. Expect shipment within 14 business days or up to 30 business days for this product to come to MPM Hobbies. Products listed as back or pre-orders may take longer than 30 days. Distributor product availability may change without the knowledge of MPM Hobbies. Should this occur, we will notify you via email, text or phone call. Please read our "Shipping Policy" for details on mixed orders i.e orders covering both in-house and products we must order from the distributor.* For better information on product availability please call or text us at 1-(904) 885-0559
SKU: AER73804
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AeroTech G38-4FJ 29mm Black Max Single-Use Motor

Experience the dramatic black exhaust plume of the AeroTech G38-4FJ, a high-performance 29mm single-use rocket motor powered by Black Max™ composite propellant. Delivering 94.0 N-sec total impulse with a 4-second delay, this motor produces a distinctive black smoke trail and dense tracking smoke that makes following your rocket's flight path effortless. Perfect for mid-power rockets requiring reliable thrust and exceptional visual tracking.

Key Features

  • Distinctive Black Exhaust Plume: Black Max propellant creates a dramatic black smoke trail for superior visual tracking
  • Dense Tracking Smoke: Thick smoke trail makes it easy to follow your rocket throughout its entire flight
  • Superior Thrust Performance: 38.0 N average thrust with 61.0 N peak thrust over 2.47 seconds
  • Aerospace Heritage: Proven composite propellant technology derived from professional rocketry applications
  • U.S. Mailable: No hazmat fees—ships via standard ground delivery
  • Certified Performance: TRA, NAR, and CAR certified for competition and recreational use

Technical Specifications

  • Motor Diameter: 29mm
  • Casing Length: 124mm
  • Total Impulse: 94.0 N-sec (G-class)
  • Average Thrust: 38.0 N
  • Peak Thrust: 61.0 N
  • Thrust Duration: 2.47 seconds
  • Delay Time: 4 seconds
  • Propellant Weight: 40.0 grams
  • Total Motor Weight: 80.0 grams

What's Included

  • 1 AeroTech G38-4FJ 29mm single-use motor
  • 1 FirstFire™ Jr. Initiator

Certifications

This motor is certified by the Tripoli Rocketry Association (TRA), National Association of Rocketry (NAR), and Canadian Association of Rocketry (CAR) for safe recreational and competition use.

Complementary Products

Enhance your rocketry experience with these related items from MPM Hobbies:

About AeroTech

AeroTech is a leading manufacturer of high-performance composite propellant rocket motors, trusted by hobbyists and professionals worldwide. Their Black Max propellant line delivers exceptional visual tracking performance with distinctive black exhaust plumes and dense smoke trails. Learn more at AeroTech's official website.

Note: This is a single-use motor and cannot be reloaded. Always follow NAR/TRA safety codes and local regulations when launching model rockets.

Aerotech Website

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Backorder Notice

This item is currently listed as backorder with our distributors. By adding it to your cart, you acknowledge that shipping may be delayed for greater than 30 days until the item becomes available.