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.

Estes Eggscaliber

Estes - Eggscaliber {Kit} (2123) [2006-]

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
Estes E12	22.07	2:1	6:1	150.73	48.51	5.7	2.54	2.20	4.54	181
Aerotech E12RCJ	22.10	2:1	3:1	68.73	65.10	7.5	3.12	2.70	5.62	310
Aerotech D13W	21.16	2:1	4:1	91.53	40.57	5.2	1.74	1.50	3.04	107
Estes E15	22.15	2:1	4:1	78.77	52.33	12.0	2.65	2.40	4.85	191
Aerotech E11J	22.20	2:1	3:1	72.33	64.72	6.5	2.90	2.60	5.30	286
Quest C12 Q-Jet	20.84	2:1	3:1	67.87	20.17	8.8	0.92	0.90	1.62	21
Aerotech D10W	20.91	2:1	4:1	108.51	41.41	5.4	1.45	1.80	3.05	104
Apogee D10	20.91	2:1	5:1	109.24	41.65	5.4	1.46	1.80	3.06	104
Aerotech D15T	21.55	3:1	5:1	123.13	43.97	4.1	1.46	1.80	3.06	112
Aerotech F12	22.35	3:1	4:1	95.12	99.29	5.2	2.96	4.10	6.86	544
Aerotech E15W	21.77	3:1	5:1	126.34	90.19	4.5	2.69	3.90	6.39	470
Quest D16 Q-Jet	20.91	3:1	4:1	92.09	28.73	6.3	0.90	1.30	2.00	40
Quest D20W Q-Jet	20.85	3:1	4:1	106.99	32.21	6.4	0.82	1.50	2.12	51
Aerotech C18W	20.74	3:1	4:1	92.87	24.55	5.2	0.58	1.20	1.58	27
Quest C18W Q-Jet	20.74	3:1	4:1	92.87	24.55	5.2	0.58	1.20	1.58	27
Aerotech E18W	22.01	3:1	6:1	136.43	98.86	3.5	2.24	4.20	6.24	497
Aerotech E20W	21.73	4:1	6:1	157.53	89.95	3.1	1.77	3.90	5.47	386
Aerotech D21T	20.88	4:1	6:1	148.79	51.35	3.4	1.03	2.30	3.13	125
Aerotech D24T	21.09	4:1	7:1	110.14	40.44	5.4	0.95	1.90	2.65	81
CTI 24E22-13A	21.99	4:1	6:1	135.31	63.64	4.7	1.11	2.90	3.81	181
Aerotech F24	22.20	4:1	7:1	187.90	122.38	2.7	2.22	5.20	7.22	694
Aerotech E25T	20.71	4:1	8:1	221.51	65.29	2.7	0.96	3.00	3.76	191
Aerotech F35W	22.99	4:1	10:1	275.81	165.17	2.0	2.22	6.40	8.42	1031
Aerotech F30FJ	22.47	5:1	7:1	174.03	133.47	3.0	1.64	5.80	7.24	719
CTI 26E31-15A	21.83	5:1	8:1	206.62	71.97	3.2	0.91	3.30	4.01	216
Aerotech F32	22.29	6:1	11:1	268.96	194.59	2.1	1.83	8.20	9.83	1388
Aerotech E30T	21.53	6:1	9:1	236.03	115.69	2.2	1.24	5.10	6.14	539
Aerotech E28T	21.92	6:1	9:1	242.64	113.22	2.1	1.24	5.00	6.04	519
Estes E30T	21.51	6:1	9:1	241.07	91.40	2.4	1.05	4.10	4.95	346
Aerotech F39	22.12	7:1	11:1	290.67	145.72	1.8	1.41	6.20	7.41	813
Aerotech F44W	21.69	8:1	12:1	326.12	129.61	1.9	1.08	5.50	6.38	603
Aerotech F51NT	22.89	9:1	13:1	343.83	155.46	1.6	1.09	6.70	7.59	871
Aerotech E50	21.35	9:1	10:1	273.43	127.33	2.1	0.85	5.60	6.25	575
Aerotech F63R	22.89	10:1	13:1	334.86	144.02	1.9	0.94	6.20	6.94	729
CTI 25E75-17A	21.83	13:1	17:1	485.27	78.87	1.4	0.38	3.60	3.78	217
FSI D20	21.57	41:1	8:1	200.96	35.36	3.6	0.82	1.60	2.22	55
FSI D18	21.42	49:1	6:1	160.70	32.40	3.9	0.83	1.50	2.13	47

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.