Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 13 motors that fit and appear to have enough thrust (661 motors didn't fit, 126 motors failed safety checks). 139 motor had thrust curves available and 292 flight simulations were performed. Browse the motors that did and didn't work right here or download the results as a spreadsheet.

The Rocket

Motors That Work

These motors fit your rocket and appear to have enough thrust to lift it safely. If thrust curves are available, a quick simulation has been run to give a rough idea of the performance of your rocket on this motor. We encourage you to run a more complete simulation with any motor you plan to use; see the simulators page for more info.

	Motor	Weight	Launch	Velocity	Accel	Altitude	Time	Delay
	AeroTech I1299	19.93lb	78ft/s	144ft/s	15.9G	310ft	4.4s	4s
	Loki I405	20.20lb	50ft/s	140ft/s	7.9G	377ft	5.2s	4s
	AeroTech I435	20.14lb	49ft/s	163ft/s	7.4G	481ft	5.8s	4s
W	Cesaroni I540	20.32lb	48ft/s	187ft/s	6.0G	570ft	6.3s	5s
	AeroTech I600	20.33lb	53ft/s	189ft/s	8.0G	584ft	6.3s	5s
	AeroTech J350	20.47lb	49ft/s	182ft/s	8.0G	596ft	6.5s	5s
	KBA J740	20.60lb	57ft/s	207ft/s	9.4G	622ft	6.4s	6s
	AeroTech J500	20.44lb	50ft/s	206ft/s	7.7G	703ft	6.9s	5s
	Loki J528	20.64lb	54ft/s	220ft/s	10.1G	744ft	7.0s	6s
	AeroTech J575	21.02lb	57ft/s	230ft/s	8.3G	815ft	7.3s	6s
	Loki J712	20.66lb	55ft/s	238ft/s	8.6G	828ft	7.3s	6s
	AeroTech J825	20.93lb	63ft/s	292ft/s	11.6G	1,096ft	8.2s	7s
	AeroTech J570	20.99lb	62ft/s	274ft/s	11.3G	1,187ft	8.7s	7s

W Motor total weight unknown, lift-off Weight not accurate.

Don't like the units? Login to set your preferences. Don't understand the results? See the motor guide help page.

Motors That Fail

These motors fit your rocket, but failed one safety check or another. They may actually work, but you should use them only with caution. We encourage you to run a more complete simulation to verify flight safety; see the simulators page for more info.

	Motor	Reason
G	Contrail G130	speed at end of launch guide too slow (16ft/s)
G	AeroTech G339	speed at end of launch guide too slow (31ft/s)
5	AeroTech G67	average thrust fails 5:1 thrust/weight ratio (1:1)
5	Loki G69	average thrust fails 5:1 thrust/weight ratio (1:1)
5	AeroTech G61	average thrust fails 5:1 thrust/weight ratio (1:1)
G	Contrail G234	speed at end of launch guide too slow (28ft/s)
5	Loki G70	average thrust fails 5:1 thrust/weight ratio (1:1)
G	Loki G94	speed at end of launch guide too slow (10ft/s)
5	Cesaroni G69	average thrust fails 5:1 thrust/weight ratio (1:1)
5	Loki G80	average thrust fails 5:1 thrust/weight ratio (1:1)
5	Cesaroni G46	average thrust fails 5:1 thrust/weight ratio (1:1)
G	Cesaroni G185	speed at end of launch guide too slow (23ft/s)
5	Cesaroni G79	average thrust fails 5:1 thrust/weight ratio (1:1)
5	Loki G66	average thrust fails 5:1 thrust/weight ratio (1:1)
5	Cesaroni G60	average thrust fails 5:1 thrust/weight ratio (1:1)
5	AeroTech G69	average thrust fails 5:1 thrust/weight ratio (1:1)
5	Cesaroni G58	average thrust fails 5:1 thrust/weight ratio (1:1)
G	Cesaroni G115	speed at end of launch guide too slow (12ft/s)
5	Cesaroni G78	average thrust fails 5:1 thrust/weight ratio (1:1)
G	Contrail G123	speed at end of launch guide too slow (18ft/s)
G	Contrail G100	speed at end of launch guide too slow (17ft/s)
5	Cesaroni G50	average thrust fails 5:1 thrust/weight ratio (1:1)
5	Contrail G300	average thrust fails 5:1 thrust/weight ratio (3:1)
G	Contrail H222	speed at end of launch guide too slow (32ft/s)
5	AeroTech H73	average thrust fails 5:1 thrust/weight ratio (1:1)
G	Loki H100	speed at end of launch guide too slow (15ft/s)
G	AeroTech H283	speed at end of launch guide too slow (32ft/s)
G	AeroTech H148	speed at end of launch guide too slow (21ft/s)
G	AeroTech H130	speed at end of launch guide too slow (25ft/s)
A	AeroTech H669	rocket doesn't reach a safe altitude (87ft)
G	AeroTech H123	speed at end of launch guide too slow (15ft/s)
G	AeroTech H100	speed at end of launch guide too slow (14ft/s)
G	AeroTech H242	speed at end of launch guide too slow (25ft/s)
G	Cesaroni H123	speed at end of launch guide too slow (15ft/s)
G	AeroTech H219	speed at end of launch guide too slow (29ft/s)
G	Loki H90	speed at end of launch guide too slow (13ft/s)
G	Loki H144	speed at end of launch guide too slow (25ft/s)
G	Loki H125	speed at end of launch guide too slow (21ft/s)
G	Cesaroni H143	speed at end of launch guide too slow (17ft/s)
G	Cesaroni H400	speed at end of launch guide too slow (38ft/s)
G	Loki H160	speed at end of launch guide too slow (28ft/s)
G	Cesaroni H120	speed at end of launch guide too slow (16ft/s)
G	AeroTech H112	speed at end of launch guide too slow (8ft/s)
G	Cesaroni H110	speed at end of launch guide too slow (12ft/s)
G	Cesaroni H225	speed at end of launch guide too slow (26ft/s)
G	Cesaroni H152	speed at end of launch guide too slow (20ft/s)
G	AeroTech H178	speed at end of launch guide too slow (21ft/s)
G	Cesaroni H125	speed at end of launch guide too slow (16ft/s)
G	Cesaroni H100	speed at end of launch guide too slow (11ft/s)
A	AeroTech H550	rocket doesn't reach a safe altitude (167ft)
A	Cesaroni H565	rocket doesn't reach a safe altitude (170ft)
A	AeroTech H999	rocket doesn't reach a safe altitude (184ft)
G	AeroTech H170	speed at end of launch guide too slow (21ft/s)
5	AeroTech H45	average thrust fails 5:1 thrust/weight ratio (1:1)
A	AeroTech H550	rocket doesn't reach a safe altitude (166ft)
G	AeroTech I180	speed at end of launch guide too slow (33ft/s)
G	AeroTech I161	speed at end of launch guide too slow (23ft/s)
G	AeroTech I218	speed at end of launch guide too slow (29ft/s)
G	AeroTech I140	speed at end of launch guide too slow (20ft/s)
G	Cesaroni I180	speed at end of launch guide too slow (21ft/s)
G	AeroTech I357	speed at end of launch guide too slow (34ft/s)
G	AeroTech I245	speed at end of launch guide too slow (37ft/s)
G	Cesaroni I212	speed at end of launch guide too slow (24ft/s)
G	AeroTech I225	speed at end of launch guide too slow (26ft/s)
G	Cesaroni I195	speed at end of launch guide too slow (25ft/s)
G	Cesaroni I566	speed at end of launch guide too slow (47ft/s)
G	AeroTech I154	speed at end of launch guide too slow (16ft/s)
G	Cesaroni I170	speed at end of launch guide too slow (23ft/s)
5	AeroTech I49	average thrust fails 5:1 thrust/weight ratio (1:1)
5	Cesaroni I55	average thrust fails 5:1 thrust/weight ratio (1:1)
G	Cesaroni I345	speed at end of launch guide too slow (34ft/s)
G	Loki I316	speed at end of launch guide too slow (41ft/s)
G	Cesaroni I175	speed at end of launch guide too slow (21ft/s)
G	Cesaroni I236	speed at end of launch guide too slow (28ft/s)
A	Cesaroni I800	rocket doesn't reach a safe altitude (285ft)
G	AeroTech I285	speed at end of launch guide too slow (35ft/s)
G	AeroTech I195	speed at end of launch guide too slow (31ft/s)
G	AeroTech I300	speed at end of launch guide too slow (36ft/s)
G	Cesaroni I223	speed at end of launch guide too slow (25ft/s)
G	AeroTech I211	speed at end of launch guide too slow (30ft/s)
G	AeroTech I305	speed at end of launch guide too slow (36ft/s)
G	Cesaroni I287	speed at end of launch guide too slow (30ft/s)
G	AeroTech I59	speed at end of launch guide too slow (18ft/s)
G	Loki I110	speed at end of launch guide too slow (19ft/s)
G	Loki I210	speed at end of launch guide too slow (35ft/s)
G	Cesaroni I285	speed at end of launch guide too slow (31ft/s)
G	Cesaroni I255	speed at end of launch guide too slow (31ft/s)
G	Loki I377	speed at end of launch guide too slow (46ft/s)
G	Loki I430	speed at end of launch guide too slow (40ft/s)
G	Cesaroni I303	speed at end of launch guide too slow (34ft/s)
G	AeroTech I366	speed at end of launch guide too slow (40ft/s)
G	AeroTech I327	speed at end of launch guide too slow (36ft/s)
G	Cesaroni I470	speed at end of launch guide too slow (44ft/s)
G	AMW I297	speed at end of launch guide too slow (33ft/s)
G	Cesaroni I242	speed at end of launch guide too slow (28ft/s)
G	KBA I301	speed at end of launch guide too slow (35ft/s)
G	AeroTech I280	speed at end of launch guide too slow (31ft/s)
G	Cesaroni I125	speed at end of launch guide too slow (20ft/s)
G	AeroTech I364	speed at end of launch guide too slow (36ft/s)
G	KBA I550	speed at end of launch guide too slow (47ft/s)
G	Cesaroni I350	speed at end of launch guide too slow (35ft/s)
G	AeroTech I284	speed at end of launch guide too slow (40ft/s)
G	AeroTech I500	speed at end of launch guide too slow (45ft/s)
G	AeroTech I350	speed at end of launch guide too slow (39ft/s)
G	Cesaroni I216	speed at end of launch guide too slow (30ft/s)
G	Cesaroni J94	speed at end of launch guide too slow (14ft/s)
G	KBA J520	speed at end of launch guide too slow (44ft/s)
G	Cesaroni J285	speed at end of launch guide too slow (34ft/s)
G	Cesaroni J335	speed at end of launch guide too slow (36ft/s)
G	Loki J396	speed at end of launch guide too slow (37ft/s)
G	Cesaroni J270	speed at end of launch guide too slow (29ft/s)
G	AeroTech J340	speed at end of launch guide too slow (40ft/s)
G	Cesaroni J316	speed at end of launch guide too slow (36ft/s)
G	Cesaroni J357	speed at end of launch guide too slow (38ft/s)
G	AeroTech J420	speed at end of launch guide too slow (43ft/s)
G	Cesaroni J381	speed at end of launch guide too slow (40ft/s)
G	AeroTech J425	speed at end of launch guide too slow (37ft/s)
G	Cesaroni J290	speed at end of launch guide too slow (34ft/s)
G	Cesaroni J400	speed at end of launch guide too slow (39ft/s)
G	AeroTech J270	speed at end of launch guide too slow (32ft/s)
G	Loki J320	speed at end of launch guide too slow (38ft/s)
G	Cesaroni J330	speed at end of launch guide too slow (38ft/s)
G	Cesaroni J410	speed at end of launch guide too slow (41ft/s)
G	AeroTech J435	speed at end of launch guide too slow (47ft/s)
G	Cesaroni J425	speed at end of launch guide too slow (43ft/s)
G	Cesaroni J354	speed at end of launch guide too slow (39ft/s)

G These simulations were run with a launch guide length of 6ft (rod, rail or tower). If this is not correct, launch guide lengths can be specified for your saved rockets. (The minimum velocity required is approximately 15m/s or 50ft/s.)

5 The 5:1 thrust-to-weight ratio check is a useful rule of thumb, but it does break down for motors with unusual thrust curves. For example, motors with a high initial thrust and a long tail-off may fail this test but still be safe for use.

A The minimum altitude check is used to ensure that the rocket flies high enough to ensure time for a safe recovery. In addition, many barometric altimeters require a minimum altitude to detect lift-off. (The minimum altitude is 10m or 33ft for an A motor and doubles for each impulse class).

Download the Results

The data is presented in a compact form in the tables above, broken down by motors that worked and those that did not. If you would like to analyze the data further, this section provides download links for files in a generic spreadsheet format (comma-separated value, or CSV) that can be opened with almost any spreadsheet program.

		Download full details of the simulation runs with the various motors: that worked, that failed, or all of them.
		Download the list of motors that fit your rocket into a batch for use with SMARTSim. (See the Simulators page for more info.)

You should download these files to your machine and then open them. Normally, clicking the link will prompt you to do this. However, if your browser insists on opening the file as plain text, you can right-click (control-click on the Mac) on the link and chose Save File As (or similar).