Rocket Motor Guide
Semroc Starship Excalibur
Semroc - Starship Excalibur {Kit} (KV-85) [2013-]
| 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 | 206.99 | 49.14 | 6.4 | 1.40 | 2.00 | 3.20 | 117 |
| Apogee 1/2A2 | 2.36 | 3:1 | 6:1 | 167.23 | 24.45 | 6.6 | 0.72 | 1.10 | 1.62 | 29 |
| Estes A3T | 2.50 | 4:1 | 10:1 | 250.55 | 48.05 | 3.5 | 1.07 | 2.10 | 2.97 | 105 |
| Estes A10T | 2.38 | 4:1 | 21:1 | 563.78 | 32.58 | 1.4 | 0.85 | 1.50 | 2.15 | 56 |
| MPC 1/2A3-M | 2.43 | 5:1 | 8:1 | 213.27 | 26.03 | 3.1 | 0.46 | 1.20 | 1.46 | 26 |
| Estes 1/2A3T | 2.43 | 5:1 | 12:1 | 340.49 | 24.89 | 2.0 | 0.38 | 1.20 | 1.38 | 23 |
| Quest C6 | 3.06 | 5:1 | 25:1 | 592.06 | 127.08 | 2.1 | 2.63 | 4.00 | 6.43 | 638 |
| Estes A8 | 2.78 | 5:1 | 16:1 | 377.36 | 41.21 | 1.8 | 0.81 | 1.70 | 2.31 | 72 |
| Estes 1/2A6 | 2.69 | 6:1 | 13:1 | 316.92 | 20.16 | 2.0 | 0.33 | 1.00 | 1.13 | 13 |
| Apogee C4 | 2.80 | 6:1 | 18:1 | 438.72 | 134.59 | 1.7 | 2.42 | 4.10 | 6.32 | 688 |
| Estes C5 | 2.95 | 6:1 | 33:1 | 776.34 | 165.84 | 1.4 | 2.04 | 4.50 | 6.34 | 725 |
| Estes B4 | 2.87 | 7:1 | 21:1 | 522.16 | 82.26 | 1.3 | 1.04 | 3.10 | 3.94 | 230 |
| Weco C6 | 2.94 | 8:1 | 20:1 | 405.46 | 115.14 | 1.7 | 1.75 | 3.80 | 5.35 | 435 |
| Estes C6 | 3.02 | 8:1 | 23:1 | 482.03 | 158.49 | 1.5 | 1.86 | 4.50 | 6.16 | 629 |
| Estes B6 | 2.84 | 8:1 | 20:1 | 468.04 | 89.78 | 1.6 | 0.86 | 3.30 | 3.96 | 242 |
| Quest A6 | 2.74 | 8:1 | 19:1 | 408.14 | 38.07 | 1.8 | 0.47 | 1.70 | 1.97 | 54 |
| Quest A8 Q-Jet | 2.66 | 8:1 | 18:1 | 352.21 | 36.74 | 2.0 | 0.40 | 1.60 | 1.80 | 46 |
| FSI A6 | 2.77 | 9:1 | 19:1 | 406.49 | 28.69 | 1.6 | 0.55 | 1.10 | 1.45 | 30 |
| Aerotech C6W | 3.01 | 10:1 | 19:1 | 444.31 | 185.10 | 1.7 | 1.65 | 4.60 | 6.05 | 713 |
| Quest B6 | 2.77 | 10:1 | 24:1 | 469.65 | 102.79 | 1.6 | 0.84 | 3.50 | 4.14 | 276 |
| Apogee B7 | 2.52 | 11:1 | 24:1 | 657.34 | 116.85 | 1.3 | 0.79 | 3.70 | 4.29 | 335 |
| Aerotech D8 | 2.87 | 12:1 | 25:1 | 645.64 | 275.15 | 1.1 | 2.48 | 4.90 | 7.18 | 1264 |
| Apogee C10 | 2.82 | 16:1 | 42:1 | 1091.18 | 195.72 | 0.8 | 1.05 | 4.70 | 5.55 | 655 |
| Aerotech C12T | 2.97 | 18:1 | 34:1 | 727.06 | 191.06 | 1.2 | 1.00 | 4.80 | 5.60 | 643 |
| Aerotech D13W | 3.37 | 18:1 | 36:1 | 820.62 | 306.51 | 0.8 | 1.74 | 5.40 | 6.94 | 1176 |
| Aerotech D10W | 3.11 | 20:1 | 41:1 | 1012.42 | 322.64 | 0.8 | 1.44 | 5.40 | 6.64 | 1148 |
| Apogee D10 | 3.11 | 22:1 | 41:1 | 1018.03 | 326.66 | 0.8 | 1.44 | 5.40 | 6.64 | 1155 |
| Aerotech D21T | 3.08 | 34:1 | 53:1 | 1322.11 | 377.63 | 0.6 | 0.94 | 5.70 | 6.44 | 1131 |
| Aerotech D24T | 3.29 | 36:1 | 68:1 | 966.15 | 318.04 | 0.8 | 0.95 | 5.80 | 6.55 | 1026 |
| Aerotech E25T | 2.91 | 38:1 | 73:1 | 2007.95 | 445.19 | 0.5 | 1.02 | 5.60 | 6.42 | 1236 |
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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