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.

Semroc ThunderStrike

Semroc - ThunderStrike {Kit} (KA-16)

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 A3T3.702:16:1156.0526.7410.91.041.202.0443
Estes A10T3.582:113:1391.0223.881.70.891.101.7938
MPC B3-M3.763:15:1130.6554.148.21.952.103.85156
MPC A3-M3.663:15:1130.6526.718.20.951.201.9537
Quest C64.263:116:1376.6892.142.32.563.605.96446
Estes A83.983:110:1258.9629.992.50.771.401.9745
Apogee C44.004:112:1302.6599.722.32.373.805.97495
Estes C54.144:122:1473.89121.551.62.064.206.06543
Estes B44.074:113:1350.2158.101.71.072.503.37147
Weco C64.145:113:1330.9875.652.01.793.004.59270
Estes C64.225:115:1389.71116.991.71.894.205.89480
Estes B64.045:113:1332.6761.921.90.902.603.30150
Quest A63.945:113:1325.4526.912.00.411.301.5127
Quest A8 Q-Jet3.865:112:1282.4822.322.30.451.101.3520
Aerotech E6RCT5.266:113:1268.72193.902.17.145.5011.642177
Aerotech E7RCT5.116:112:1261.55186.212.25.655.5010.151696
FSI A63.976:112:1301.8220.242.00.490.801.0913
Aerotech C6W4.216:112:1304.14135.602.11.684.405.88561
Quest B63.977:115:1397.2570.051.80.782.903.48172
Apogee E65.037:121:1495.57233.891.46.096.0011.092183
Aerotech D7T4.897:112:1246.45180.262.22.885.408.081090
Apogee B73.727:116:1438.9277.861.50.813.103.71210
Aerotech D84.078:116:1433.95215.071.42.505.307.601178
Aerotech E104.829:121:1490.35336.391.64.155.809.752173
QUEST D819.419:131:1147.0830.916.92.231.503.5396
Estes D114.9810:128:1676.48221.371.71.885.807.481043
Apogee C104.0211:127:1741.21142.411.00.974.605.37522
Aerotech D9W5.0611:121:1423.99225.143.01.935.907.631037
Estes D124.9011:131:1777.23221.121.71.685.807.281008
Aerotech C12T4.1711:122:1527.93138.541.41.024.505.32500
Estes C114.6511:123:1554.84126.571.80.894.405.09430
Aerotech E12RCJ5.5012:119:1446.28316.371.33.106.309.201863
Aerotech D13W4.5612:124:1578.20243.931.01.765.707.261096
Aerotech E11J5.6012:120:1427.00310.471.62.936.309.031769
Aerotech D10W4.3113:126:1696.83259.431.01.455.907.151099
Apogee D104.3114:127:1700.68259.551.01.465.907.161095
Aerotech D15T4.9515:130:1654.35237.271.01.455.907.151060
Aerotech F125.7516:125:1535.45389.611.22.986.709.482160
Aerotech E15W5.1716:131:1711.95362.560.92.666.709.162041
Aerotech E18W5.4119:133:1734.10398.710.92.266.808.861954
Aerotech E20W5.1321:137:1834.94385.280.91.816.808.411730
Aerotech D21T4.2822:134:1910.35293.100.80.956.206.951093
Aerotech D24T4.4923:144:1678.31246.941.00.966.106.86951
CTI 24E22-13A5.3923:133:1729.28318.880.91.156.807.751301
Aerotech F245.6124:143:1914.93440.001.12.187.209.182188
Aerotech E25T4.1125:147:11351.56353.210.61.036.307.131255
CTI 26E31-15A5.2331:146:11061.04354.930.80.946.907.641357
Aerotech E30T4.9334:151:11256.61484.640.61.237.108.131827
Aerotech E28T5.3234:153:11166.66457.460.71.247.408.441839
Estes E30T4.9135:152:11300.15419.790.71.037.007.831581
Aerotech F395.5240:163:11372.82532.710.61.437.508.732135
Aerotech F44W5.0945:169:11637.60572.470.91.087.308.181872
Aerotech E504.7555:158:11390.64581.870.70.857.307.951799
CTI 25E75-17A5.2379:1101:12324.20304.640.50.426.706.921088

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.