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 Cosmic Interceptor

Estes - Cosmic Interceptor {Kit} (001351) [2013-]

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 C6W10.912:14:194.4140.365.01.621.603.02100
Apogee E611.732:17:1179.0691.913.56.223.508.72785
Aerotech D7T11.592:14:181.1260.305.92.942.505.24276
Apogee B710.422:15:1133.3221.845.70.771.001.5727
Aerotech D810.773:15:1136.9377.473.62.463.005.26354
Aerotech E1011.523:17:1170.39145.893.34.084.408.281004
Estes D1111.683:19:1241.5275.842.51.883.204.88275
Apogee C1010.724:19:1250.0645.952.90.992.002.79104
Aerotech D9W11.764:17:1164.6483.854.91.963.204.96299
Estes D1211.604:111:1276.1775.042.41.683.104.58258
Aerotech C12T10.874:17:1190.4045.612.90.942.002.7498
Estes C1111.344:18:1197.4642.452.90.811.902.5177
Aerotech E12RCJ12.194:17:1158.44140.253.33.134.507.43809
Aerotech D13W11.264:18:1203.7193.202.41.753.404.95357
Aerotech E11J12.304:17:1160.13137.633.22.864.507.16746
Aerotech D10W11.014:19:1239.0796.422.61.463.604.86358
Apogee D1011.015:19:1240.4996.272.61.463.604.86356
Aerotech D15T11.655:110:1258.3194.852.01.433.604.83350
Aerotech F1212.455:18:1205.19185.612.52.975.207.971053
Aerotech E15W11.875:110:1266.88171.922.02.735.207.73973
Aerotech E18W12.116:111:1283.10184.091.92.235.407.43949
Aerotech E20W11.837:112:1324.04172.021.71.775.306.87804
Aerotech D21T10.987:111:1317.13110.411.71.024.104.92381
Aerotech D24T11.198:115:1239.9391.242.50.963.604.36286
CTI 24E22-13A12.098:111:1281.03131.472.51.154.605.55498
Aerotech F2412.308:115:1374.65212.161.62.135.907.831119
Aerotech E25T10.818:116:1462.44135.231.30.984.705.48508
CTI 26E31-15A11.9310:116:1415.15143.761.80.915.005.71544
Aerotech E30T11.6312:117:1478.84215.051.21.275.906.97942
Aerotech E28T12.0212:118:1476.32208.311.21.275.906.97921
Estes E30T11.6112:118:1487.42180.091.31.075.506.37737
Aerotech F3912.2213:121:1563.66254.251.11.366.407.561158
Aerotech F44W11.7915:123:1639.68242.401.41.036.207.03969
Aerotech E5011.4519:120:1538.06251.751.20.896.407.09998
CTI 25E75-17A11.9326:134:1935.89131.530.90.344.704.84418

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.