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 Terrier/Sandhawk

Estes - Terrier/Sandhawk {Kit} (2083) [1993-1996]

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
Aerotech E6RCT10.462:15:1109.6091.084.67.314.0010.31905
Aerotech E7RCT10.312:15:1105.6280.514.85.833.007.83625
Aerotech C6W9.413:15:1114.8850.154.21.662.003.46140
Quest B69.173:16:1153.8623.628.20.831.101.7329
Apogee E610.233:18:1212.44114.542.76.184.509.681001
Aerotech D7T10.093:15:198.5575.874.82.873.105.77373
Apogee B78.923:16:1161.4326.704.10.781.201.7838
Aerotech D89.273:16:1165.2094.913.12.433.605.83463
Aerotech E1010.023:18:1202.85170.662.84.154.808.751206
Estes D1110.184:111:1269.5790.212.41.863.605.26349
Apogee C109.224:111:1296.8256.012.31.062.303.16142
Aerotech D9W10.264:18:1195.50100.614.51.913.805.51392
Estes D1210.104:112:1298.6189.002.31.663.605.06329
Aerotech C12T9.375:19:1226.5855.052.41.012.303.11134
Estes C119.845:19:1229.0847.742.60.892.102.7998
Aerotech E12RCJ10.705:18:1188.11163.772.83.105.108.00978
Aerotech D13W9.765:19:1241.25110.662.11.733.905.43455
Aerotech E11J10.805:18:1190.23160.982.92.934.907.63908
Aerotech D10W9.515:110:1283.42114.012.21.434.205.43452
Apogee D109.516:111:1285.07115.752.21.444.205.44458
Aerotech D15T10.156:112:1302.49111.361.81.414.105.31442
Aerotech F1210.956:110:1233.73213.522.22.955.708.451240
Aerotech E15W10.376:112:1313.28198.511.82.715.708.211154
Aerotech E18W10.618:113:1330.92212.531.62.215.807.811123
Aerotech E20W10.338:115:1378.69199.291.51.855.707.35960
Aerotech D21T9.489:113:1374.40130.811.51.004.605.40483
Aerotech D24T9.699:117:1283.52106.362.10.944.104.84357
CTI 24E22-13A10.599:113:1328.56154.012.21.135.206.13617
Aerotech F2410.809:117:1433.40242.861.52.226.208.221307
Aerotech E25T9.3110:119:1545.51159.231.10.965.205.96627
CTI 26E31-15A10.4312:118:1483.31169.111.60.895.506.19670
Aerotech E30T10.1314:120:1560.05248.381.11.266.407.461106
Aerotech E28T10.5214:121:1546.40239.421.11.276.407.471083
Estes E30T10.1114:121:1569.57208.081.11.066.006.86876
Aerotech F3910.7216:125:1651.07290.861.01.356.807.951341
Aerotech F44W10.2918:127:1744.58280.691.31.026.607.421137
Aerotech E509.9522:123:1625.90289.721.10.886.807.481154
CTI 25E75-17A10.4331:140:11082.92149.500.80.345.105.24502

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.