Rocket Motor Guide

Rocket Name

Enter the name of the rocket. You can optionally select a rocket from the list that may appear as you type.

Rocket Diameter

Enter the diameter of the rocket's body.

Weight

Enter the weight of the rocket without the motor.

Motor Mount Diameter

Enter the diameter of the rocket's motor mount. This sets the largest diameter motor which will fit.

Motor Mount Length

Enter the length of the rocket's motor mount. This sets the longest motor which will fit.

Drag

Low Normal High

Select the approximate drag of the rocket. Sleeker rockets with a smooth finish will have lower drag.

Semroc Golden Scout

Semroc - Golden Scout {Kit} (KV-4)

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
Quest Micro Maxx	0.32	5:1	16:1	441.79	51.38	2.5	0.84	1.90	2.54	97
Quest Micro Maxx II	0.32	6:1	41:1	1189.29	42.05	0.7	0.76	1.60	2.16	71
Apogee A2	0.52	24:1	62:1	983.02	239.38	0.9	1.38	3.80	4.98	646
Apogee 1/2A2	0.43	25:1	51:1	906.25	180.72	1.0	0.68	3.50	3.98	355
Estes A3T	0.58	28:1	75:1	869.26	223.66	1.0	1.10	3.80	4.70	549
Estes A10T	0.47	30:1	163:1	4055.32	296.75	0.8	0.87	3.40	4.07	522
Estes 1/4A3T	0.49	30:1	64:1	762.27	62.20	1.1	0.29	2.30	2.39	98
Apogee 1/4A2	0.41	32:1	70:1	1065.42	74.71	0.9	0.27	2.50	2.57	118
MPC 1/2A3-M	0.51	39:1	65:1	1212.64	153.29	1.1	0.49	3.50	3.79	308
Estes 1/2A3T	0.51	39:1	98:1	1067.33	116.65	0.9	0.38	3.20	3.38	224
Quest C6	1.14	41:1	200:1	1997.32	297.86	1.4	2.63	5.30	7.73	1613
Estes A8	0.85	41:1	126:1	1447.52	191.79	1.2	0.83	4.40	5.03	539
Estes 1/2A6	0.77	44:1	102:1	1276.51	107.43	1.3	0.33	3.50	3.63	231
Apogee C4	0.88	49:1	146:1	1552.08	360.57	0.8	2.45	4.90	7.15	1573
Estes C5	1.02	51:1	264:1	3160.90	373.73	0.9	2.08	4.80	6.68	1581
Estes B4	0.95	54:1	165:1	1464.48	291.47	0.9	1.09	5.00	5.89	880
Weco C6	1.02	61:1	160:1	1947.11	318.48	1.0	1.77	4.80	6.37	1208
Estes C6	1.09	61:1	182:1	2204.11	391.85	1.1	1.89	5.20	6.89	1531
Estes B6	0.92	65:1	157:1	1783.92	324.20	1.0	0.89	5.10	5.79	884
Quest A6	0.82	65:1	153:1	1817.89	195.16	1.1	0.49	4.40	4.69	482
Quest A8 Q-Jet	0.74	66:1	144:1	1750.84	228.55	1.2	0.40	4.10	4.30	441
FSI A6	0.85	70:1	148:1	1660.94	133.73	1.0	0.48	3.80	4.08	331
Aerotech C6W	1.09	77:1	152:1	1415.22	473.30	1.0	1.68	5.60	7.08	1537
Quest B6	0.85	80:1	186:1	2474.79	398.81	0.9	0.77	4.90	5.47	902
Apogee B7	0.60	87:1	191:1	2948.07	448.62	0.6	0.82	4.30	4.92	845
Aerotech D8	0.95	92:1	198:1	2637.47	688.55	0.6	2.43	4.80	7.03	2227
Apogee C10	0.90	129:1	332:1	2864.65	546.49	0.5	1.03	5.30	6.13	1301
Aerotech C12T	1.05	139:1	266:1	2530.09	516.76	0.8	0.95	5.90	6.65	1398
Aerotech D13W	1.44	146:1	287:1	2314.93	672.76	0.5	1.72	6.40	7.92	2208
Aerotech D10W	1.19	161:1	323:1	3259.61	748.45	0.4	1.41	5.80	7.01	2018
Apogee D10	1.19	173:1	325:1	3401.84	754.40	0.5	1.42	5.80	7.02	2029
Aerotech D21T	1.16	269:1	415:1	4272.09	878.74	0.4	1.03	5.90	6.73	1893
Aerotech D24T	1.37	281:1	533:1	2400.83	709.76	0.5	0.92	6.70	7.42	1896
Aerotech E25T	0.99	300:1	575:1	6975.63	1049.25	0.4	1.01	5.10	5.91	1830

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.