Rocket Motor Guide

Enter the name of the rocket. You can optionally select a rocket from the list that may appear as you type.
Enter the diameter of the rocket's body.
Enter the weight of the rocket without the motor.
Enter the diameter of the rocket's motor mount. This sets the largest diameter motor which will fit.
Enter the length of the rocket's motor mount. This sets the longest motor which will fit.
Select the approximate drag of the rocket. Sleeker rockets with a smooth finish will have lower drag.

Centuri Earth Forces Starfighter

Centuri - Earth Forces Starfighter {Kit} (5335) [1979-1981]

MotorWeight
oz
TTW
Average
TTW
Peak
Accel
f/s2
Speed
mph
Rod
Len
feet
Burnout Time
sec
Optimal
Delay
sec
Time to
Apogee
sec
Altitude
feet
Apogee A23.342:16:1140.4731.6613.11.371.502.6763
Estes A3T3.403:17:1173.2630.738.71.021.402.2253
Estes A10T3.293:115:1431.5825.651.60.881.201.8842
Quest C63.964:118:1432.17111.592.22.564.506.86604
Estes A83.684:111:1283.7333.152.20.751.502.0552
Apogee C43.704:113:1332.75122.212.12.364.806.96683
Estes C53.845:124:1496.29145.081.52.065.307.16764
Estes B43.775:115:1382.6264.011.61.062.803.66177
Weco C63.845:114:1345.3588.151.91.783.705.28355
Estes C63.926:116:1408.07135.301.71.885.206.88651
Estes B63.746:114:1363.7769.431.80.893.003.69188
Quest A63.646:114:1356.3228.672.00.501.301.6032
Quest A8 Q-Jet3.566:113:1295.7524.532.20.441.201.4423
FSI A63.676:113:1322.0420.271.90.480.801.0816
Aerotech C6W3.917:114:1331.69156.282.01.685.607.08791
Quest B63.677:117:1410.3977.461.70.773.303.87216
Apogee B73.428:117:1481.6487.111.50.813.604.21273
Aerotech D83.778:118:1477.28276.581.42.507.409.701838
Apogee C103.7212:130:1806.59161.420.90.965.806.56737
Aerotech C12T3.8712:124:1547.84156.671.31.015.706.51699
Aerotech D13W4.2613:126:1624.90287.711.01.757.809.351693
Aerotech D10W4.0114:129:1756.46307.261.01.458.009.251716
Apogee D104.0116:129:1760.59308.371.01.458.009.251718
Aerotech D21T3.9824:137:1987.94337.910.80.958.409.151732
Aerotech D24T4.1925:148:1733.71281.171.00.967.908.661448
Aerotech E25T3.8127:152:11472.88415.020.61.038.709.532051

Weight - The total weight of the rocket, with motor, at lift-off.

TTW Average - The average thrust-to-weight ratio of the rocket.

TTW Peak - The peak thrust-to-weight ratio of the rocket.

Accel - The maximum acceleration experienced by the rocket.

Speed - The maximum speed experienced by the rocket.

Rod Len - The minimal rod/rail length for the rocket to reach a safe speed (9 m/s) for free flight.

Optimal Delay - The optimal delay time (equal to the time from burnout to apogee).

Altitude - The altitude at apogee.

Note: These simulation results should be used with caution. Always double-check to ensure that your flight will be safe.

The Rocket Motor Guide helps you choose the right motor to use in your rocket by running a simulation using each of the motors in the RocketReviews.com motor database.