Rocket Motor Guide
Semroc Goblin
Semroc - Goblin {Kit} (KV-80) [2011-]
| 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 | 1.54 | 5:1 | 13:1 | 356.84 | 87.84 | 2.7 | 1.39 | 2.90 | 4.09 | 246 |
| Apogee 1/2A2 | 1.46 | 5:1 | 11:1 | 294.62 | 50.60 | 2.9 | 0.70 | 2.00 | 2.50 | 90 |
| Estes A3T | 1.60 | 6:1 | 16:1 | 420.94 | 78.78 | 1.5 | 1.06 | 2.70 | 3.56 | 193 |
| Estes A10T | 1.49 | 7:1 | 35:1 | 706.75 | 50.06 | 1.2 | 0.93 | 2.00 | 2.73 | 104 |
| Estes 1/4A3T | 1.52 | 7:1 | 14:1 | 351.85 | 20.13 | 1.8 | 0.27 | 0.90 | 0.97 | 13 |
| Apogee 1/4A2 | 1.43 | 7:1 | 15:1 | 413.07 | 20.25 | 1.8 | 0.25 | 0.90 | 0.95 | 13 |
| MPC B3-M | 1.66 | 7:1 | 14:1 | 363.59 | 131.77 | 1.8 | 1.88 | 3.30 | 4.98 | 433 |
| MPC A3-M | 1.56 | 8:1 | 14:1 | 363.59 | 77.23 | 1.8 | 0.98 | 2.60 | 3.38 | 175 |
| MPC 1/2A3-M | 1.53 | 8:1 | 14:1 | 358.64 | 38.88 | 1.9 | 0.48 | 1.70 | 1.98 | 52 |
| Estes 1/2A3T | 1.53 | 8:1 | 21:1 | 567.87 | 35.43 | 1.3 | 0.43 | 1.50 | 1.73 | 45 |
| Quest C6 | 2.16 | 9:1 | 43:1 | 783.21 | 156.18 | 1.8 | 2.59 | 4.00 | 6.39 | 783 |
| Estes A8 | 1.88 | 9:1 | 27:1 | 475.44 | 61.09 | 1.5 | 0.78 | 2.40 | 2.98 | 129 |
| Estes 1/2A6 | 1.79 | 9:1 | 22:1 | 430.78 | 25.87 | 1.7 | 0.39 | 1.20 | 1.39 | 24 |
| Apogee C4 | 1.90 | 10:1 | 31:1 | 652.91 | 162.35 | 1.3 | 2.39 | 3.90 | 6.09 | 796 |
| Estes C5 | 2.05 | 11:1 | 56:1 | 1371.39 | 199.59 | 1.2 | 2.01 | 4.10 | 5.91 | 813 |
| Estes B4 | 1.97 | 12:1 | 35:1 | 712.82 | 117.94 | 1.1 | 1.12 | 3.40 | 4.32 | 332 |
| Weco C6 | 2.04 | 13:1 | 34:1 | 644.77 | 157.85 | 1.4 | 1.72 | 3.80 | 5.32 | 569 |
| Estes C6 | 2.12 | 13:1 | 39:1 | 606.49 | 199.36 | 1.3 | 1.94 | 4.20 | 5.94 | 737 |
| Estes B6 | 1.94 | 14:1 | 34:1 | 563.27 | 130.74 | 1.4 | 0.94 | 3.60 | 4.34 | 348 |
| Quest A6 | 1.84 | 14:1 | 33:1 | 487.77 | 62.21 | 1.5 | 0.44 | 2.40 | 2.64 | 111 |
| Quest A8 Q-Jet | 1.76 | 14:1 | 31:1 | 782.94 | 76.20 | 1.6 | 0.46 | 2.70 | 2.96 | 146 |
| Aerotech E6RCT | 3.16 | 15:1 | 33:1 | 511.36 | 243.48 | 1.5 | 7.59 | 4.50 | 11.09 | 2477 |
| Aerotech E7RCT | 3.01 | 15:1 | 32:1 | 501.29 | 240.54 | 1.7 | 5.60 | 4.50 | 9.10 | 1947 |
| FSI A6 | 1.87 | 15:1 | 32:1 | 640.18 | 63.79 | 1.4 | 0.52 | 2.30 | 2.62 | 108 |
| Aerotech C6W | 2.11 | 17:1 | 33:1 | 651.19 | 240.29 | 1.4 | 1.62 | 4.30 | 5.72 | 774 |
| Quest B6 | 1.87 | 17:1 | 40:1 | 582.19 | 154.35 | 1.4 | 0.82 | 3.80 | 4.42 | 390 |
| Apogee E6 | 2.93 | 18:1 | 56:1 | 957.83 | 256.46 | 1.0 | 6.06 | 4.50 | 9.56 | 2354 |
| Aerotech D7T | 2.79 | 18:1 | 30:1 | 491.36 | 245.13 | 1.4 | 2.92 | 4.80 | 7.52 | 1317 |
| Apogee B7 | 1.62 | 19:1 | 41:1 | 885.02 | 172.71 | 1.1 | 0.76 | 3.80 | 4.36 | 423 |
| Aerotech D8 | 1.97 | 20:1 | 42:1 | 994.54 | 346.11 | 0.8 | 2.46 | 4.10 | 6.36 | 1249 |
| Aerotech E10 | 2.72 | 23:1 | 54:1 | 966.92 | 445.00 | 1.2 | 4.10 | 4.40 | 8.30 | 2182 |
| QUEST D8 | 17.32 | 24:1 | 80:1 | 169.78 | 39.11 | 3.8 | 2.29 | 1.70 | 3.79 | 129 |
| Estes D11 | 2.88 | 26:1 | 72:1 | 1208.84 | 301.76 | 1.4 | 1.93 | 4.90 | 6.63 | 1182 |
| Apogee C10 | 1.92 | 28:1 | 71:1 | 1668.08 | 260.90 | 0.6 | 1.04 | 4.30 | 5.14 | 696 |
| Aerotech D9W | 2.96 | 28:1 | 55:1 | 719.65 | 341.26 | 2.5 | 1.94 | 5.20 | 6.94 | 1185 |
| Estes D12 | 2.80 | 28:1 | 82:1 | 1269.32 | 304.14 | 1.3 | 1.73 | 4.90 | 6.43 | 1113 |
| Aerotech C12T | 2.07 | 30:1 | 57:1 | 1115.03 | 256.44 | 1.0 | 0.98 | 4.50 | 5.28 | 701 |
| Estes C11 | 2.55 | 30:1 | 60:1 | 996.62 | 240.20 | 1.4 | 0.84 | 4.70 | 5.34 | 654 |
| Aerotech E12RCJ | 3.40 | 31:1 | 51:1 | 820.24 | 399.28 | 0.9 | 3.07 | 5.00 | 7.87 | 1894 |
| Aerotech D13W | 2.47 | 31:1 | 62:1 | 1182.41 | 367.63 | 0.7 | 1.73 | 4.70 | 6.23 | 1157 |
| Aerotech E11J | 3.50 | 32:1 | 53:1 | 775.12 | 396.70 | 1.1 | 2.89 | 5.20 | 7.89 | 1814 |
| Aerotech D10W | 2.22 | 35:1 | 69:1 | 1514.48 | 392.66 | 0.6 | 1.42 | 4.70 | 5.92 | 1108 |
| Apogee D10 | 2.22 | 37:1 | 69:1 | 1523.11 | 398.14 | 0.6 | 1.43 | 4.70 | 5.93 | 1115 |
| Aerotech D15T | 2.85 | 39:1 | 79:1 | 1238.91 | 360.32 | 0.7 | 1.43 | 5.20 | 6.43 | 1162 |
| Aerotech F12 | 3.65 | 41:1 | 65:1 | 983.29 | 464.51 | 0.8 | 2.95 | 5.30 | 8.05 | 2115 |
| Aerotech E15W | 3.07 | 42:1 | 80:1 | 1306.03 | 439.27 | 0.7 | 2.74 | 5.20 | 7.74 | 2003 |
| Aerotech E18W | 3.31 | 50:1 | 86:1 | 1356.14 | 510.79 | 0.7 | 2.24 | 5.40 | 7.44 | 1878 |
| Aerotech E20W | 3.03 | 55:1 | 96:1 | 1581.19 | 515.34 | 0.7 | 1.79 | 5.40 | 6.99 | 1651 |
| Aerotech D21T | 2.18 | 58:1 | 89:1 | 1981.95 | 458.99 | 0.5 | 1.03 | 4.80 | 5.63 | 1061 |
| Aerotech D24T | 2.40 | 60:1 | 114:1 | 1316.08 | 384.71 | 0.7 | 0.94 | 5.10 | 5.84 | 1003 |
| CTI 24E22-13A | 3.29 | 61:1 | 85:1 | 1330.79 | 470.41 | 0.7 | 1.13 | 5.70 | 6.63 | 1319 |
| Aerotech F24 | 3.51 | 61:1 | 113:1 | 1624.38 | 552.00 | 0.9 | 2.16 | 5.80 | 7.76 | 2083 |
| Aerotech E25T | 2.01 | 64:1 | 123:1 | 2974.16 | 538.49 | 0.4 | 1.02 | 4.60 | 5.42 | 1114 |
| CTI 26E31-15A | 3.14 | 81:1 | 121:1 | 1964.02 | 529.62 | 0.5 | 0.93 | 5.80 | 6.53 | 1332 |
| Aerotech E30T | 2.83 | 90:1 | 133:1 | 2486.33 | 645.71 | 0.5 | 1.22 | 5.40 | 6.42 | 1613 |
| Aerotech E28T | 3.22 | 90:1 | 140:1 | 2153.17 | 603.60 | 0.5 | 1.22 | 5.90 | 6.92 | 1695 |
| Estes E30T | 2.81 | 91:1 | 136:1 | 2580.59 | 576.37 | 0.5 | 1.12 | 5.40 | 6.32 | 1443 |
| Aerotech F39 | 3.42 | 103:1 | 164:1 | 2516.64 | 667.25 | 0.5 | 1.42 | 5.90 | 7.12 | 1929 |
| Aerotech F44W | 2.99 | 118:1 | 180:1 | 3076.40 | 800.06 | 0.8 | 1.06 | 5.60 | 6.46 | 1617 |
| Aerotech E50 | 2.66 | 144:1 | 152:1 | 2786.44 | 781.82 | 0.6 | 0.83 | 5.40 | 6.03 | 1501 |
| CTI 25E75-17A | 3.14 | 205:1 | 263:1 | 4246.58 | 517.11 | 0.4 | 0.41 | 5.80 | 6.01 | 1101 |
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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