G64-7W 29/40-120 Reload Motor Kit

This Model Rocket Motor Reload Kit Includes One G-class G64-7W Reloadable Motor Systems for RMS 29/40-120 Motor Hardware, Designed by Aerotech. Federal Law Prohibits the Sale of This Product to Persons Under Age 18. Package contains 1 Aerotech G Size Reloadable Model Rocket Engines.

Aerotech G64-7W 29/40-120 Reload Motor Kit G RMS Model Rocket Engine #76407
 Aerotech # aro76407
Retail $25.99  SAVE 21% !
Aerotech Item # aro76407
Specifications :
  • Motor Diameter: 1.13" (29mm)
  • Assembled Weight: 5.3oz (151g)
  • Maximum Liftoff Weight: 28oz (794g)
  • Total Impulse: 120 Newtons
  • Aerotech Product Number: 76407
USA Ground Shipping Only
Website security verified by GoDaddy.

Spotlight Review

"Hits hard, plus a good sustaining thrust"
I've used G64's for approximately 25 years, and it's a great motor. The thrust curve of the G64 is nearly perfect in my opinion. It hits hard and can have a 2-pound rocket moving at very stable speeds (45 ft/sec) at the end of a 5 or 6 foot launch rod. After the initial punch, the thrust tapers off due to the C-slot grain design, providing a nice, long sustaining thrust. The only downside I've encountered with White Lightning propellant is that it can be difficult to ignite at times. A thermalite booster can be helpful in this case.

Member Gallery

(Pictures shared by our community)

You Might Also Like

← Swipe To View More →


  • For use in RMS 29mm E, F, G motor.
  • Primary use in single stage rockets.
  • They deliver power at the lowest per flight cost available in hobby rocketry.
  • White Lightning looks and sounds like actual sounding rockets and launch vehicles.
  • White Lightning propellant formulation: a brilliant white flame, dense bright white exhaust, and a throaty roar.
  • Easy to track and exciting to watch!
  • The average thrust of the motor is 14.4 pounds (64 Newtons).
  • Time delay of 7 seconds between propellant burnout and the firing of the ejection charge.
  • Uses the exclusive Copperhead single lead igniter.
  • Ignites by electrical means only.
  • Certified by the National Association of Rocketry.
  • This reload kit includes (1 of each)
  • -Liner (1" O.D. tube)
  • -Propellant Grain (long slotted part)
  • -Grain Adapter (7/8" O.D. tube)
  • -Delay Grain (short solid part)
  • -Delay Spacer (9/16" O.D. Washer or tube)
  • -Delay Insulator (5/8" O.D. tube)
  • -Delay O-Ring (5/8" O.D. x 3/32" thick)
  • -Forward Insulator (1" O.D. washer)
  • -Aft O-Ring (1/16" thick x 1" O.D.).
  • -Forward O-Ring (1/16" thick x 1" O.D.)
  • -Nozzle (black plastic part).
  • -Copperhead Igniter
  • -Ejection Charge Container/Nozzle Cap (Red)
  • Assembly and operation instructions provided.
  • Product warranty policies included.


  • Motor Diameter: 1.13" (29mm)
  • Assembled Weight: 5.3oz (151g)
  • Maximum Liftoff Weight: 28oz (794g)
  • Total Impulse: 120 Newtons
  • Aerotech Product Number: 76407


One G64-7W Reloadable Motor Systems

Requirements & Suggestions

  • RMS 29/40-120 Motor(s)
  • 12V Launch System
  • Wet Wipes or Damp Paper Towel
  • Hobby Knife or Scissors
  • How To Build a Model Rocket
← Swipe To View More →


"Greatest bang for the buck motor!"
Has to be one of the best 'bang for the bucks' reloadable 29 mm motors, in my opinion! The White Lightning propellant produces a big, bright white flame and lots of smoke! And a nice very audible sound as soon as it ignites! One of my favorites.

"best hobby class reload"
great looking smoke,flame & roar and 7 sec. delay is good for the aerotech hv arcas

"Great Mid-Power Motor"
The AeroTech G64W reloads for the RMS 29/40-120 motor case are excellent mid-power motors and one of my favorites. I have used them many times and will continue to do so. The White Thunder propellant formula provides very good Isp (more bang for your buck) and an impressive launch with a deep throaty roar, brilliant white exhaust plume, and thick white smoke. They always make the crowd turn and watch. Just be aware, these are not like little black powder motors for a school yard launch. These are serious motors for serious rocketeers. They are a great motor to help you learn what you need to know to transition to high-power rocketry. I used them in my scratch built 38mm rocket when I was learning dual-deploy techniques and regularly hit altitudes over 1,700 feet. I'm NAR L2 certified and working on my L3 project now, but I still love these motors for my local rocket club's low-power launch events.


  • This reload kit is only for use in Aerotech's RMS-29/40-120 motor.
  • 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.

Others Also Ordererd

← Swipe To View More →