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.

Squirrel Works Dragonfire

Squirrel Works - Dragonfire {Kit}

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 A22.243:19:1229.5457.345.51.352.303.45145
Apogee 1/2A22.163:17:1186.2729.825.60.661.401.8639
Estes A3T2.304:110:1276.5253.522.71.032.203.03119
Estes A10T2.194:123:1598.4735.261.30.951.502.2562
MPC B3-M2.365:19:1236.1499.343.01.963.204.96339
MPC A3-M2.265:19:1236.1453.193.00.962.102.86110
MPC 1/2A3-M2.235:19:1236.0627.082.60.441.201.4428
Estes 1/2A3T2.235:114:1375.0225.701.70.361.201.3624
Quest C62.866:128:1623.87133.272.02.624.006.42669
Estes A82.586:118:1403.3043.791.70.811.902.5180
Estes 1/2A62.496:114:1342.6620.331.90.420.901.1214
Apogee C42.607:120:1473.82140.601.62.424.106.32719
Estes C52.747:137:1874.32174.121.32.034.406.23750
Estes B42.677:123:1564.0688.281.31.043.204.04249
Weco C62.749:122:1422.21123.591.61.753.905.45465
Estes C62.819:125:1502.18167.051.51.964.406.16655
Estes B62.649:122:1481.7496.391.50.963.304.06261
Quest A62.549:121:1424.6341.781.70.471.802.0763
Quest A8 Q-Jet2.469:120:1372.7942.551.90.401.802.0059
Aerotech E6RCT3.869:121:1396.28213.021.87.614.5011.112410
Aerotech E7RCT3.7110:121:1387.55208.721.95.625.009.621896
FSI A62.5710:121:1432.8635.461.60.551.401.7543
Aerotech C6W2.8111:121:1475.86195.581.61.644.606.04732
Quest B62.5711:126:1485.56110.671.50.843.604.24300
Apogee E63.6311:136:1730.64249.791.26.075.0010.072334
Aerotech D7T3.4912:120:1373.01217.261.62.945.207.941269
Apogee B72.3212:127:1658.26126.121.30.783.804.38356
Aerotech D82.6713:128:1701.66290.191.02.474.706.971267
Aerotech E103.4215:135:1732.83406.871.34.125.008.922208
QUEST D818.0116:152:1161.6136.394.42.221.703.72117
Estes D113.5817:147:1951.95276.671.51.955.307.051159
Apogee C102.6218:146:11183.38208.210.71.054.705.55672
Aerotech D9W3.6618:136:1597.95295.042.61.975.607.371169
Estes D123.5018:154:11035.03277.001.51.755.406.951101
Aerotech C12T2.7719:137:1790.79203.331.20.994.805.59661
Estes C113.2520:139:1792.83186.341.60.864.805.46593
Aerotech E12RCJ4.1020:133:1639.62372.851.03.085.608.481917
Aerotech D13W3.1620:140:1881.45318.720.81.745.206.741178
Aerotech E11J4.2021:135:1611.47366.371.32.905.708.401833
Aerotech D10W2.9122:145:11094.16336.390.71.435.306.531146
Apogee D102.9124:145:11100.24339.360.81.445.306.541152
Aerotech D15T3.5525:151:1960.15311.340.81.445.706.941164
Aerotech F124.3527:142:1782.83439.740.92.965.908.662164
Aerotech E15W3.7727:152:11016.02414.730.72.645.908.342050
Aerotech E18W4.0133:156:11060.92472.180.72.256.008.051940
Aerotech E20W3.7336:162:11222.86467.560.71.796.107.691718
Aerotech D21T2.8838:158:11429.13393.880.61.045.506.341123
Aerotech D24T3.0939:174:11038.87332.360.80.955.706.451028
CTI 24E22-13A3.9940:155:11054.09409.910.71.146.307.241354
Aerotech F244.2040:174:11294.81513.990.92.176.408.372155
Aerotech E25T2.7142:180:12184.16465.120.51.025.406.221217
CTI 26E31-15A3.8353:179:11533.65462.950.60.936.407.131385
Aerotech E30T3.5358:187:11862.54588.050.51.226.107.121731
Aerotech E28T3.9259:191:11684.46550.580.61.236.507.531786
Estes E30T3.5159:189:11947.48519.790.51.026.207.021537
Aerotech F394.1267:1107:11976.00620.730.51.426.607.822040
Aerotech F44W3.6977:1117:12363.82724.570.81.076.307.171753
Aerotech E503.3594:199:12072.46724.390.70.846.206.841652
CTI 25E75-17A3.83133:1171:13333.04415.470.40.416.306.511136

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.