Rocket Motor Guide
Estes Big Bertha
Estes - Big Bertha {Kit} (1948, 23, 7007)
| Motor | Weight 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 A2 | 2.44 | 3:1 | 8:1 | 206.95 | 47.89 | 6.5 | 1.40 | 1.90 | 3.10 | 109 |
| Apogee 1/2A2 | 2.36 | 3:1 | 6:1 | 167.18 | 24.39 | 6.6 | 0.72 | 1.10 | 1.62 | 28 |
| Estes A3T | 2.50 | 4:1 | 10:1 | 250.42 | 46.83 | 3.6 | 1.07 | 1.90 | 2.77 | 98 |
| Estes A10T | 2.38 | 4:1 | 21:1 | 562.90 | 31.99 | 1.4 | 0.85 | 1.40 | 2.05 | 54 |
| MPC 1/2A3-M | 2.43 | 5:1 | 8:1 | 213.00 | 25.94 | 3.1 | 0.46 | 1.20 | 1.46 | 26 |
| Estes 1/2A3T | 2.43 | 5:1 | 12:1 | 340.23 | 24.91 | 2.0 | 0.38 | 1.10 | 1.28 | 23 |
| Quest C6 | 3.06 | 5:1 | 25:1 | 591.31 | 111.44 | 2.1 | 2.63 | 3.40 | 5.83 | 526 |
| Estes A8 | 2.78 | 5:1 | 16:1 | 376.62 | 40.76 | 1.8 | 0.81 | 1.70 | 2.31 | 69 |
| Estes 1/2A6 | 2.69 | 6:1 | 13:1 | 316.24 | 20.14 | 2.0 | 0.33 | 0.90 | 1.03 | 13 |
| Apogee C4 | 2.80 | 6:1 | 18:1 | 434.57 | 115.79 | 1.7 | 2.42 | 3.40 | 5.62 | 558 |
| Estes C5 | 2.95 | 6:1 | 33:1 | 775.52 | 145.67 | 1.4 | 2.04 | 3.70 | 5.54 | 581 |
| Estes B4 | 2.87 | 7:1 | 21:1 | 521.52 | 79.62 | 1.3 | 1.04 | 2.80 | 3.64 | 204 |
| Weco C6 | 2.94 | 8:1 | 20:1 | 404.67 | 106.05 | 1.7 | 1.75 | 3.30 | 4.85 | 365 |
| Estes C6 | 3.02 | 8:1 | 23:1 | 481.26 | 143.32 | 1.5 | 1.86 | 3.80 | 5.46 | 511 |
| Estes B6 | 2.84 | 8:1 | 20:1 | 467.29 | 87.46 | 1.6 | 0.86 | 3.00 | 3.66 | 212 |
| Quest A6 | 2.74 | 8:1 | 19:1 | 407.38 | 37.83 | 1.8 | 0.47 | 1.60 | 1.87 | 52 |
| Quest A8 Q-Jet | 2.66 | 8:1 | 18:1 | 351.38 | 36.67 | 2.0 | 0.40 | 1.60 | 1.80 | 44 |
| FSI A6 | 2.77 | 9:1 | 19:1 | 405.75 | 28.63 | 1.6 | 0.55 | 1.10 | 1.45 | 29 |
| Aerotech C6W | 3.01 | 10:1 | 19:1 | 443.58 | 171.60 | 1.7 | 1.65 | 3.80 | 5.25 | 565 |
| Quest B6 | 2.77 | 10:1 | 24:1 | 468.86 | 100.58 | 1.6 | 0.84 | 3.10 | 3.74 | 237 |
| Apogee B7 | 2.52 | 11:1 | 24:1 | 656.53 | 112.42 | 1.3 | 0.79 | 3.30 | 3.89 | 279 |
| Aerotech D8 | 2.87 | 12:1 | 25:1 | 641.26 | 249.47 | 1.1 | 2.48 | 3.90 | 6.18 | 973 |
| Apogee C10 | 2.82 | 16:1 | 42:1 | 1091.02 | 184.12 | 0.8 | 1.05 | 3.90 | 4.75 | 514 |
| Aerotech C12T | 2.97 | 18:1 | 34:1 | 726.33 | 180.61 | 1.2 | 1.00 | 4.00 | 4.80 | 508 |
| Aerotech D13W | 3.37 | 18:1 | 36:1 | 820.61 | 276.31 | 0.8 | 1.74 | 4.30 | 5.84 | 895 |
| Aerotech D10W | 3.11 | 20:1 | 41:1 | 1012.27 | 289.49 | 0.8 | 1.44 | 4.40 | 5.64 | 868 |
| Apogee D10 | 3.11 | 22:1 | 41:1 | 1017.98 | 291.98 | 0.8 | 1.44 | 4.40 | 5.64 | 873 |
| Aerotech D21T | 3.08 | 34:1 | 53:1 | 1321.98 | 339.65 | 0.6 | 0.94 | 4.70 | 5.44 | 844 |
| Aerotech D24T | 3.29 | 36:1 | 68:1 | 965.71 | 288.90 | 0.8 | 0.95 | 4.70 | 5.45 | 779 |
| Aerotech E25T | 2.91 | 38:1 | 73:1 | 2007.28 | 396.75 | 0.5 | 1.02 | 4.50 | 5.32 | 913 |
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.
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