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.

Rocketarium Black Brant IIIB (NASA)

Rocketarium - Black Brant IIIB (NASA) {Kit} (RK-1020) [2019-]

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 A22.104:19:1248.1462.364.81.412.503.71170
Apogee 1/2A22.014:18:1202.0230.985.00.731.301.8342
Estes A3T2.164:111:1297.9558.022.31.112.403.31140
Estes A10T2.055:124:1622.8537.911.30.951.602.3572
MPC 1/2A3-M2.096:110:1255.1127.742.40.521.201.5231
Estes 1/2A3T2.096:115:1403.6626.411.60.451.201.4529
Quest C62.726:130:1651.71158.802.02.615.007.41877
Estes A82.436:119:1417.9846.551.70.802.002.6092
Estes 1/2A62.357:115:1360.1420.371.90.420.901.1215
Apogee C42.467:122:1506.05171.021.52.415.107.31960
Estes C52.608:140:1951.08207.381.32.035.507.331011
Estes B42.538:125:1589.5596.261.31.033.704.53305
Weco C62.609:124:1436.73142.631.61.744.706.24608
Estes C62.679:127:1519.58193.141.41.955.407.15874
Estes B62.5010:124:1494.78104.401.50.953.804.55326
Quest A62.4010:123:1435.8545.061.70.462.002.2673
Quest A8 Q-Jet2.3210:122:1411.1948.251.80.392.102.2976
FSI A62.4311:122:1447.3342.601.50.541.702.0461
Aerotech C6W2.6712:123:1507.38221.561.51.645.707.14992
Quest B62.4312:128:1499.98120.181.50.834.204.83384
Apogee B72.1813:129:1657.41138.891.30.784.505.08464
Aerotech D82.5314:130:1755.28337.881.02.476.108.371765
Apogee C102.4819:150:11257.85234.170.71.055.806.65919
Aerotech C12T2.6321:140:1841.17227.531.20.995.906.69898
Aerotech D13W3.0222:143:1929.61368.630.81.746.708.241654
Aerotech D10W2.7724:148:11159.76393.020.71.436.707.931619
Apogee D102.7726:149:11166.12397.920.71.446.707.941628
Aerotech D21T2.7440:162:11515.07456.770.61.046.907.741605
Aerotech D24T2.9542:180:11097.05378.280.80.947.007.741442
Aerotech E25T2.5745:186:12303.73548.700.51.026.907.721755

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.