Step 1: Pick the diameter of the engine. Clicking on the diameter will take you to more information about each diameter motor so you can select the correct casing.

• 24mm Dia. Motors (power: E - F )
• 29mm Dia. Motors (power: F - G )
• 29mm HPR Motor (Power: G - I )
• 38mm Dia. Motors (power: G - J )
• 54mm Dia. Motors (power: I - K )
• 75mm Dia. Motors (power: K - M )
• 98mm Dia. Motors (power: K - N )

Step 2: Pick the Aerotech Propellant kit that you want to fly in your rocket. To be honest, this is the most time-consuming step. Contact us if you need help. We'll direct you to the RockSim software that we use to help pick the right rocket engines for your vehicle. Technical Publication #28 gives you a step-by-step procedure for picking the motors that might work in your rocket.

Step 3: Match the propellant kit that you just selected in step 2 to the appropriate Rouse-Tech Monster Motor Case.

Q. Don't I need to be high-power certified to buy these motors?

A. No. You can buy the aluminum casings without being certified. However, you do need to be high-power certified to buy the propellant kits (H size and larger).

Q. Where do I go to get High Power Certified so I can buy the propellant kits?

A. In the United States, there are two organizations that can certify you to fly high power motors. They are the National Association of Rocketry, and Tripoli Rocketry Association. If you are outside of the USA, please click here.

Q. How easy is it to assemble a reloadable rocket motor?

A. It will take you about 5 minutes to put one together. If you want to see how easy it is, watch our YouTube video where we put one together (click here).

Cesaroni (also known as CTI) is a manufacture of reloadable rocket motors. These motors are made in the standard diameters, so they will fit into your current fleet of rockets without having to do any further modifications. Note: the cases are not compatible with Aerotech Reload Propellant.

"I am satisfied with how the order was handled. Everything arrived quickly and in good condition. It will take me some time to get through the book and using the software but will pass along any comments. I will be passing along information about Apogee Components as I found the web site helpful, provideing links to many resources (materials and information)." - Sebastien LeBel