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.

Estes Helicat

Estes - Helicat {Kit}

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
Estes A3T3.802:16:1151.0124.2811.71.081.101.9839
Estes A10T3.682:113:1379.2823.321.70.891.101.7937
Quest C64.363:116:1360.1789.282.32.573.505.87429
Estes A84.083:110:1251.7228.542.80.781.301.8842
Apogee C44.104:112:1290.1596.992.32.373.705.87479
Estes C54.244:121:1465.71118.201.62.064.105.96525
Estes B44.174:113:1340.6756.671.81.082.403.28142
Weco C64.245:113:1327.0673.432.01.793.004.59258
Estes C64.315:114:1381.49114.221.81.894.105.79467
Estes B64.145:112:1323.5659.991.90.902.603.30143
Quest A64.045:112:1316.4626.462.10.411.201.4127
Quest A8 Q-Jet3.965:111:1287.7621.922.30.451.001.2519
FSI A64.076:112:1295.8220.252.10.490.801.0914
Aerotech C6W4.316:112:1296.09132.212.11.694.305.79545
Quest B64.076:115:1391.6268.141.80.782.803.38165
Apogee B73.827:115:1426.4475.101.60.813.003.61199
Aerotech D84.177:116:1422.06211.001.52.515.307.611157
Apogee C104.1210:126:1721.86138.971.00.974.605.37508
Aerotech C12T4.2711:121:1523.74135.141.41.024.505.32485
Aerotech D13W4.6612:123:1564.24239.051.11.765.707.261077
Aerotech D10W4.4113:126:1679.13254.291.11.455.907.151081
Apogee D104.4114:126:1682.89254.071.11.465.907.161076
Aerotech D21T4.3821:133:1887.33286.810.80.956.206.951076
Aerotech D24T4.5922:142:1661.83241.881.00.966.006.76934
Aerotech E25T4.2124:146:11315.83345.840.61.036.307.131239

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.