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 Astron Explorer

Estes - Astron Explorer {Kit} (7264) [2018-2022]

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 C46.602:17:1169.9249.263.52.372.204.37203
Estes C56.742:112:1335.7561.961.92.012.704.51227
Estes B46.672:18:1196.3729.498.01.061.402.2653
Weco C66.743:17:1193.5338.055.71.771.703.27107
Estes C66.813:18:1221.1262.784.51.942.804.54217
Estes B66.643:17:1185.7533.245.00.861.502.1655
Aerotech E6RCT7.863:17:1161.44153.793.37.225.5011.721646
Aerotech E7RCT7.713:17:1155.99137.183.35.735.5010.231205
Aerotech C6W6.814:17:1172.7378.913.01.673.104.57285
Quest B66.574:19:1230.0538.683.80.791.802.3968
Apogee E67.634:112:1304.91187.552.06.136.5011.631746
Aerotech D7T7.494:17:1146.24120.953.32.974.607.37704
Apogee B76.324:19:1242.3042.202.50.781.902.4881
Aerotech D86.674:19:1245.68147.672.22.465.207.46851
Aerotech E107.425:112:1293.14249.602.14.106.5010.401960
QUEST D822.015:117:1125.1622.4517.22.261.003.0666
Estes D117.586:116:1335.51138.952.11.925.206.92681
Apogee C106.626:115:1429.4582.871.61.013.404.21271
Estes D127.506:118:1346.57132.702.01.725.006.52618
Aerotech C12T6.776:112:1328.2582.231.80.963.504.26259
Estes C117.257:113:1290.1272.312.20.843.103.74194
Aerotech E12RCJ8.107:111:1269.58238.782.03.156.709.651622
Aerotech D13W7.167:113:1345.49161.671.51.795.306.89803
Aerotech E11J8.207:112:1267.80231.422.22.886.709.381501
Aerotech D10W6.917:115:1408.33167.551.61.395.706.89804
Apogee D106.918:115:1410.63168.381.61.505.606.90806
Aerotech D15T7.558:117:1414.04158.501.41.485.506.78766
Aerotech F128.359:114:1327.76304.161.73.017.4010.211995
Aerotech E15W7.779:117:1440.49284.501.32.687.409.881860
Aerotech E18W8.0111:119:1460.57298.761.32.297.509.591801
Aerotech E20W7.7312:121:1523.72280.861.21.837.409.031560
Aerotech D21T6.8813:119:1535.92187.891.20.986.106.88842
Aerotech D24T7.0913:125:1405.00159.651.51.005.606.40686
CTI 24E22-13A7.9913:118:1457.42214.311.61.096.707.591036
Aerotech F248.2013:125:1586.63339.291.32.208.0010.002075
Aerotech E25T6.7114:127:1782.95229.130.90.956.707.451064
CTI 26E31-15A7.8318:126:1668.44239.451.20.977.007.771128
Aerotech E30T7.5319:129:1785.47348.290.81.258.009.051766
Aerotech E28T7.9220:130:1738.19330.960.91.258.109.151729
Estes E30T7.5120:130:1796.88290.540.91.057.608.451423
Aerotech F398.1222:136:1881.02401.300.81.348.609.742108
Aerotech F44W7.6926:139:11035.32390.361.11.008.309.101824
Aerotech E507.3531:133:1877.17401.960.90.868.409.061808
CTI 25E75-17A7.8344:157:11481.66198.930.60.436.506.73844

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.