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 - H )
• 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 Cesaroni 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 Cesaroni Case.

Q. How do I adjust the ejection charge delay on the Cesaroni motors.

A. You need a special drill tool, called the "Pro-DAT" that allows you to put a hole into the delay grain that makes the coasting time shorter. One delay tool can be used on all 38mm motors. Click Here for more information.

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