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 Gemini Titan

Estes - Gemini Titan {Kit} (21) [1965-1973]

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 A3T4.102:16:1137.1721.6115.21.061.001.8631
Estes A10T3.992:112:1346.5821.412.00.911.001.7133
Quest C64.663:115:1313.3567.252.42.582.504.88289
Estes A84.373:19:1231.1426.173.90.831.101.7334
Apogee C44.404:111:1252.9871.052.52.382.604.78314
Estes C54.544:119:1439.6490.281.62.072.904.77334
Estes B44.474:112:1314.0050.221.91.092.002.89111
Weco C64.544:112:1311.0060.722.11.802.203.80183
Estes C64.614:113:1351.0691.581.81.903.004.70308
Estes B64.445:112:1297.8752.332.10.912.102.81107
Quest A64.345:111:1290.8024.732.20.431.101.3323
Quest A8 Q-Jet4.265:111:1284.5620.612.40.461.001.2617
FSI A64.375:111:1276.7120.212.10.500.701.0013
Aerotech C6W4.616:111:1272.35109.342.21.702.904.40339
Quest B64.376:114:1367.4060.671.90.782.302.88122
Apogee B74.126:114:1391.7664.991.70.822.302.92139
Aerotech D84.477:115:1386.54161.131.62.513.305.61651
Apogee C104.429:124:1668.53117.351.10.973.304.07314
Aerotech C12T4.5710:120:1501.81115.391.41.023.204.02304
Aerotech D13W4.9611:121:1525.50187.701.11.763.605.16599
Aerotech D10W4.7112:124:1630.18196.851.11.463.805.06592
Apogee D104.7113:124:1633.75196.601.11.463.805.06590
Aerotech D21T4.6820:130:1823.75227.530.80.964.104.86578
Aerotech D24T4.8921:139:1615.79196.341.10.974.104.87524
Aerotech E25T4.5122:142:11217.37266.970.71.034.004.83645

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.