Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 56 motors that fit and appear to have enough thrust (647 motors didn't fit, 97 motors failed safety checks). 153 motor had thrust curves available and 319 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
	Cesaroni H400	195.0oz	51ft/s	131ft/s	7.1G	280ft	4.4s	4s
	AeroTech H550	196.4oz	64ft/s	166ft/s	10.8G	415ft	5.2s	5s
	AeroTech H550	196.1oz	64ft/s	167ft/s	10.9G	418ft	5.2s	5s
W	Cesaroni H565	197.8oz	62ft/s	169ft/s	10.7G	424ft	5.3s	5s
	AeroTech H999	196.7oz	85ft/s	179ft/s	28.4G	443ft	5.2s	5s
	AeroTech I245	197.9oz	49ft/s	156ft/s	6.5G	468ft	5.8s	4s
	Cesaroni I566	198.6oz	59ft/s	195ft/s	10.2G	541ft	5.9s	5s
	Cesaroni I800	201.1oz	72ft/s	224ft/s	14.9G	655ft	6.4s	6s
	AeroTech I300	200.6oz	48ft/s	199ft/s	7.3G	666ft	6.8s	5s
	AeroTech I1299	199.9oz	99ft/s	236ft/s	26.1G	692ft	6.4s	6s
	Loki I316	204.0oz	56ft/s	214ft/s	7.8G	758ft	7.1s	6s
	Loki I405	204.2oz	67ft/s	238ft/s	13.1G	840ft	7.2s	6s
	Loki I430	204.0oz	53ft/s	253ft/s	8.4G	886ft	7.6s	6s
	Loki I377	204.8oz	58ft/s	242ft/s	10.5G	893ft	7.6s	6s
	AeroTech I327	207.2oz	48ft/s	244ft/s	6.5G	910ft	7.8s	6s
	AeroTech I366	204.6oz	53ft/s	248ft/s	7.6G	916ft	7.8s	6s
	Cesaroni I470	202.5oz	56ft/s	266ft/s	8.9G	943ft	7.7s	7s
	AeroTech I435	203.3oz	65ft/s	275ft/s	12.4G	1,030ft	8.0s	7s
	AeroTech I284	204.6oz	52ft/s	262ft/s	7.5G	1,042ft	8.2s	6s
	KBA I550	210.1oz	58ft/s	299ft/s	10.4G	1,070ft	8.1s	7s
	AeroTech I500	205.3oz	56ft/s	299ft/s	9.1G	1,145ft	8.4s	7s
	Loki J396	211.5oz	48ft/s	295ft/s	8.2G	1,170ft	8.6s	7s
	KBA J520	210.5oz	57ft/s	308ft/s	11.1G	1,176ft	8.5s	7s
W	Cesaroni I540	206.1oz	62ft/s	312ft/s	10.0G	1,178ft	8.4s	7s
	AeroTech I350	206.7oz	52ft/s	299ft/s	7.5G	1,181ft	8.6s	7s
	Cesaroni J316	206.4oz	48ft/s	282ft/s	6.6G	1,188ft	8.9s	7s
	AeroTech J420	207.9oz	56ft/s	300ft/s	8.6G	1,191ft	8.6s	7s
	AeroTech I600	206.2oz	69ft/s	313ft/s	13.3G	1,193ft	8.4s	7s
	Cesaroni J381	209.3oz	53ft/s	297ft/s	7.7G	1,203ft	8.8s	7s
	AeroTech J340	205.4oz	53ft/s	293ft/s	9.5G	1,208ft	8.7s	7s
	Cesaroni J357	206.2oz	51ft/s	298ft/s	8.0G	1,214ft	8.8s	7s
	AeroTech J350	208.5oz	64ft/s	303ft/s	13.2G	1,222ft	8.6s	7s
	KBA J740	210.5oz	73ft/s	336ft/s	15.0G	1,237ft	8.5s	8s
	AeroTech J425	207.3oz	48ft/s	316ft/s	6.8G	1,260ft	9.0s	7s
	Cesaroni J400	209.8oz	52ft/s	315ft/s	7.1G	1,303ft	9.1s	7s
	AeroTech J520	212.2oz	75ft/s	333ft/s	16.2G	1,360ft	8.9s	7s
	AeroTech J500	208.1oz	66ft/s	340ft/s	12.7G	1,388ft	9.1s	8s
	Loki J528	211.3oz	72ft/s	356ft/s	16.4G	1,431ft	9.0s	8s
	Cesaroni J330	209.8oz	51ft/s	326ft/s	6.9G	1,461ft	9.6s	7s
	Cesaroni J410	210.9oz	54ft/s	344ft/s	7.7G	1,487ft	9.6s	8s
	AeroTech J435	207.0oz	60ft/s	354ft/s	11.0G	1,509ft	9.5s	8s
	Cesaroni J425	209.7oz	57ft/s	351ft/s	10.5G	1,518ft	9.5s	8s
	AeroTech J575	217.2oz	72ft/s	370ft/s	13.4G	1,522ft	9.3s	8s
	Loki J320	211.5oz	49ft/s	334ft/s	8.0G	1,552ft	9.9s	7s
	Loki J712	211.5oz	70ft/s	386ft/s	13.9G	1,557ft	9.4s	8s
	Cesaroni J354	212.4oz	52ft/s	341ft/s	7.8G	1,581ft	9.9s	7s
	Cesaroni J520	215.0oz	58ft/s	385ft/s	9.9G	1,644ft	9.8s	8s
	Cesaroni J580	221.8oz	60ft/s	401ft/s	9.8G	1,719ft	10.0s	8s
	AeroTech J825	215.9oz	80ft/s	464ft/s	18.6G	1,908ft	10.1s	9s
	Cesaroni J394	218.1oz	49ft/s	402ft/s	6.3G	1,910ft	10.8s	8s
	Cesaroni J595	215.5oz	65ft/s	439ft/s	14.2G	1,964ft	10.4s	9s
	Cesaroni J600	217.0oz	64ft/s	451ft/s	11.0G	1,980ft	10.5s	9s
	Cesaroni J420	215.8oz	63ft/s	414ft/s	12.1G	2,012ft	10.7s	8s
	Cesaroni J453	219.0oz	60ft/s	420ft/s	10.9G	2,015ft	10.8s	8s
	AeroTech J570	216.8oz	78ft/s	433ft/s	18.1G	2,057ft	10.6s	9s
	Cesaroni J530	219.5oz	68ft/s	467ft/s	12.2G	2,223ft	11.0s	9s

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 (29ft/s)
G	AeroTech G339	speed at end of launch guide too slow (47ft/s)
G	AeroTech G67	speed at end of launch guide too slow (15ft/s)
G	Loki G69	speed at end of launch guide too slow (16ft/s)
G	AeroTech G61	speed at end of launch guide too slow (13ft/s)
G	Contrail G234	speed at end of launch guide too slow (47ft/s)
G	Loki G70	speed at end of launch guide too slow (18ft/s)
G	Loki G94	speed at end of launch guide too slow (23ft/s)
G	Cesaroni G69	speed at end of launch guide too slow (13ft/s)
G	Loki G80	speed at end of launch guide too slow (20ft/s)
5	Cesaroni G46	average thrust fails 5:1 thrust/weight ratio (1:1)
G	Cesaroni G185	speed at end of launch guide too slow (32ft/s)
G	Cesaroni G79	speed at end of launch guide too slow (16ft/s)
G	Loki G66	speed at end of launch guide too slow (19ft/s)
G	Cesaroni G60	speed at end of launch guide too slow (14ft/s)
G	AeroTech G69	speed at end of launch guide too slow (15ft/s)
G	Cesaroni G58	speed at end of launch guide too slow (8ft/s)
G	Cesaroni G115	speed at end of launch guide too slow (22ft/s)
G	Cesaroni G78	speed at end of launch guide too slow (16ft/s)
G	Contrail G123	speed at end of launch guide too slow (30ft/s)
G	Contrail G100	speed at end of launch guide too slow (28ft/s)
5	Cesaroni G50	average thrust fails 5:1 thrust/weight ratio (1:1)
A	Contrail G300	rocket doesn't reach a safe altitude (44ft)
G	Contrail H222	speed at end of launch guide too slow (44ft/s)
A	Contrail H300	rocket doesn't reach a safe altitude (106ft)
A	Contrail H303	rocket doesn't reach a safe altitude (122ft)
G	AeroTech H73	speed at end of launch guide too slow (13ft/s)
G	Loki H100	speed at end of launch guide too slow (24ft/s)
G	AeroTech H283	speed at end of launch guide too slow (44ft/s)
G	AeroTech H148	speed at end of launch guide too slow (31ft/s)
G	AeroTech H130	speed at end of launch guide too slow (36ft/s)
A	AeroTech H669	rocket doesn't reach a safe altitude (227ft)
A	Contrail H246	rocket doesn't reach a safe altitude (193ft)
G	AeroTech H123	speed at end of launch guide too slow (25ft/s)
G	AeroTech H100	speed at end of launch guide too slow (23ft/s)
G	AeroTech H242	speed at end of launch guide too slow (35ft/s)
G	Cesaroni H123	speed at end of launch guide too slow (23ft/s)
G	AeroTech H219	speed at end of launch guide too slow (39ft/s)
G	Loki H90	speed at end of launch guide too slow (24ft/s)
G	Loki H144	speed at end of launch guide too slow (36ft/s)
G	Loki H125	speed at end of launch guide too slow (31ft/s)
G	Contrail H141	speed at end of launch guide too slow (36ft/s)
G	Cesaroni H143	speed at end of launch guide too slow (25ft/s)
G	Loki H160	speed at end of launch guide too slow (39ft/s)
G	Cesaroni H120	speed at end of launch guide too slow (25ft/s)
G	AeroTech H112	speed at end of launch guide too slow (19ft/s)
G	Cesaroni H110	speed at end of launch guide too slow (21ft/s)
G	Cesaroni H225	speed at end of launch guide too slow (37ft/s)
G	Cesaroni H152	speed at end of launch guide too slow (29ft/s)
G	AeroTech H178	speed at end of launch guide too slow (29ft/s)
G	Cesaroni H125	speed at end of launch guide too slow (25ft/s)
G	Cesaroni H100	speed at end of launch guide too slow (21ft/s)
G	AeroTech H170	speed at end of launch guide too slow (30ft/s)
G	AeroTech H45	speed at end of launch guide too slow (15ft/s)
G	AeroTech I180	speed at end of launch guide too slow (46ft/s)
G	AeroTech I161	speed at end of launch guide too slow (32ft/s)
G	AeroTech I218	speed at end of launch guide too slow (40ft/s)
G	AeroTech I140	speed at end of launch guide too slow (29ft/s)
G	Cesaroni I180	speed at end of launch guide too slow (30ft/s)
G	AeroTech I357	speed at end of launch guide too slow (46ft/s)
G	Cesaroni I212	speed at end of launch guide too slow (33ft/s)
G	AeroTech I225	speed at end of launch guide too slow (35ft/s)
G	Cesaroni I195	speed at end of launch guide too slow (35ft/s)
G	AeroTech I154	speed at end of launch guide too slow (26ft/s)
G	Cesaroni I170	speed at end of launch guide too slow (33ft/s)
G	AeroTech I49	speed at end of launch guide too slow (7ft/s)
G	Cesaroni I55	speed at end of launch guide too slow (9ft/s)
G	Cesaroni I345	speed at end of launch guide too slow (47ft/s)
G	Cesaroni I175	speed at end of launch guide too slow (30ft/s)
G	Cesaroni I236	speed at end of launch guide too slow (38ft/s)
G	AeroTech I285	speed at end of launch guide too slow (46ft/s)
G	AeroTech I195	speed at end of launch guide too slow (43ft/s)
G	Cesaroni I223	speed at end of launch guide too slow (35ft/s)
G	AeroTech I211	speed at end of launch guide too slow (40ft/s)
G	AeroTech I305	speed at end of launch guide too slow (47ft/s)
G	Cesaroni I287	speed at end of launch guide too slow (40ft/s)
G	AeroTech I59	speed at end of launch guide too slow (26ft/s)
G	Loki I110	speed at end of launch guide too slow (28ft/s)
G	Loki I210	speed at end of launch guide too slow (46ft/s)
G	Cesaroni I285	speed at end of launch guide too slow (43ft/s)
G	Cesaroni I255	speed at end of launch guide too slow (41ft/s)
G	Cesaroni I303	speed at end of launch guide too slow (46ft/s)
G	AMW I297	speed at end of launch guide too slow (43ft/s)
G	Cesaroni I242	speed at end of launch guide too slow (38ft/s)
G	KBA I301	speed at end of launch guide too slow (45ft/s)
G	AeroTech I280	speed at end of launch guide too slow (42ft/s)
G	Cesaroni I125	speed at end of launch guide too slow (30ft/s)
G	AeroTech I364	speed at end of launch guide too slow (47ft/s)
G	Cesaroni I350	speed at end of launch guide too slow (46ft/s)
G	Cesaroni I216	speed at end of launch guide too slow (40ft/s)
G	Cesaroni J94	speed at end of launch guide too slow (24ft/s)
G	Cesaroni J285	speed at end of launch guide too slow (45ft/s)
G	Cesaroni J335	speed at end of launch guide too slow (47ft/s)
G	Cesaroni J270	speed at end of launch guide too slow (39ft/s)
G	Cesaroni J290	speed at end of launch guide too slow (45ft/s)
G	AeroTech J270	speed at end of launch guide too slow (44ft/s)
G	Cesaroni J150	speed at end of launch guide too slow (34ft/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).