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 Mean Machine

Estes - Mean Machine {Kit} (1295) [1978-1998, 2007-2013, 2018-]

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 C46.402:17:1175.7350.323.42.362.204.36207
Estes C56.542:113:1341.2562.921.92.002.704.50227
Estes B46.473:18:1203.6830.007.11.121.302.2255
Weco C66.543:18:1200.7740.154.91.741.803.34112
Estes C66.613:19:1229.1765.974.11.922.804.52225
Estes B66.443:18:1192.7133.854.60.941.502.2458
Aerotech E6RCT7.663:17:1166.85134.663.17.215.0011.211419
Aerotech E7RCT7.513:17:1161.24124.023.45.734.509.231072
Aerotech C6W6.614:17:1178.8280.203.01.663.004.46279
Quest B66.374:19:1238.5140.673.50.781.802.3872
Apogee E67.434:112:1314.88164.832.06.135.0010.131490
Aerotech D7T7.294:17:1151.24116.723.22.964.206.96645
Apogee B76.124:19:1251.4143.342.40.771.902.4783
Aerotech D86.474:110:1253.76140.902.22.464.506.76747
Aerotech E107.225:112:1300.31232.062.14.095.309.191585
QUEST D821.815:118:1126.6422.7815.92.201.103.1067
Estes D117.386:116:1342.46137.592.01.924.706.42621
Apogee C106.426:116:1444.2984.371.51.013.304.11264
Estes D127.306:118:1350.83132.702.01.724.606.12569
Aerotech C12T6.577:113:1339.4084.011.80.963.304.06254
Estes C117.047:113:1296.2874.632.20.843.103.74195
Aerotech E12RCJ7.897:111:1278.36222.541.93.145.608.541334
Aerotech D13W6.967:114:1356.96159.381.51.794.706.29704
Aerotech E11J8.007:112:1274.86218.202.22.875.608.271245
Aerotech D10W6.718:116:1422.23165.811.61.395.106.29701
Apogee D106.718:116:1424.61166.721.61.505.006.30703
Aerotech D15T7.359:118:1425.20157.681.31.484.906.18678
Aerotech F128.159:115:1332.68281.531.63.016.108.911597
Aerotech E15W7.579:118:1454.21261.661.32.686.208.681499
Aerotech E18W7.8111:119:1474.53283.001.22.286.208.281443
Aerotech E20W7.5312:122:1538.51268.761.11.836.207.831261
Aerotech D21T6.6813:120:1553.92188.031.10.985.406.18724
Aerotech D24T6.8914:126:1418.38160.251.50.995.105.89608
CTI 24E22-13A7.7914:119:1471.27213.161.61.195.806.79880
Aerotech F248.0014:125:1603.46317.431.32.206.608.601638
Aerotech E25T6.5114:128:1809.67227.910.90.945.806.54882
CTI 26E31-15A7.6318:127:1688.44239.371.20.976.106.87944
Aerotech E30T7.3320:130:1810.03336.190.81.256.707.751387
Aerotech E28T7.7220:131:1758.98321.090.91.256.807.851372
Estes E30T7.3120:131:1821.82285.530.91.056.407.251149
Aerotech F397.9223:137:1904.27382.670.81.347.108.241636
Aerotech F44W7.4926:140:11060.56386.861.11.006.907.701420
Aerotech E507.1532:134:1888.84395.400.90.867.007.661402
CTI 25E75-17A7.6346:159:11524.69203.560.60.435.806.03726

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.