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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 66 motors that fit and appear to have enough thrust (649 motors didn't fit, 87 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

Rocket Name:   Little Lumpy
Owner: Tim Cubbedge
Body Diameter: 7.68in
Dry Weight: 171.0oz
MMT Diameter: 38.0mm
MMT Length: 20.00in
CD: 0.60

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
OK Cesaroni H400 181.0oz 53ft/s 142ft/s 7.7G 302ft 4.5s 4s
OK AeroTech I180 184.6oz 49ft/s 140ft/s 6.0G 422ft 5.5s 4s
OK AeroTech H550 182.4oz 67ft/s 179ft/s 11.7G 432ft 5.2s 5s
OK AeroTech H550 182.1oz 67ft/s 179ft/s 11.8G 434ft 5.2s 5s
warningsW Cesaroni H565 183.8oz 65ft/s 182ft/s 11.3G 440ft 5.3s 5s
OK AeroTech H999 182.7oz 90ft/s 192ft/s 30.6G 455ft 5.2s 5s
OK AeroTech I245 183.9oz 51ft/s 166ft/s 7.1G 487ft 5.8s 4s
OK AeroTech I357 183.1oz 48ft/s 173ft/s 6.4G 490ft 5.8s 4s
OK Cesaroni I566 184.6oz 62ft/s 210ft/s 10.9G 548ft 5.8s 5s
OK Cesaroni I345 184.9oz 49ft/s 205ft/s 6.6G 593ft 6.3s 5s
OK AeroTech I285 188.4oz 48ft/s 199ft/s 6.2G 608ft 6.4s 5s
OK Cesaroni I800 187.1oz 75ft/s 240ft/s 15.7G 645ft 6.2s 6s
OK AeroTech I300 186.6oz 50ft/s 210ft/s 8.0G 668ft 6.6s 5s
OK AeroTech I305 191.5oz 49ft/s 209ft/s 6.6G 668ft 6.6s 5s
OK AeroTech I1299 185.9oz 101ft/s 253ft/s 28.0G 674ft 6.2s 6s
OK Loki I316 190.0oz 57ft/s 225ft/s 8.5G 745ft 6.8s 5s
OK Loki I210 190.0oz 48ft/s 209ft/s 7.4G 771ft 7.2s 5s
OK Loki I405 190.2oz 69ft/s 249ft/s 14.2G 809ft 6.9s 6s
OK Loki I430 190.0oz 55ft/s 267ft/s 9.1G 851ft 7.2s 6s
OK Loki I377 190.8oz 63ft/s 252ft/s 11.4G 857ft 7.2s 6s
OK AeroTech I327 193.2oz 50ft/s 256ft/s 7.0G 876ft 7.5s 6s
OK AeroTech I366 190.6oz 56ft/s 260ft/s 8.2G 878ft 7.4s 6s
OK Cesaroni I303 188.6oz 48ft/s 251ft/s 6.9G 882ft 7.5s 6s
OK AeroTech I364 194.9oz 49ft/s 256ft/s 6.6G 888ft 7.5s 6s
OK Cesaroni I470 188.5oz 58ft/s 281ft/s 9.6G 894ft 7.3s 6s
OK AeroTech I435 189.3oz 68ft/s 288ft/s 13.3G 964ft 7.5s 6s
OK Cesaroni I350 198.6oz 48ft/s 277ft/s 6.2G 973ft 7.8s 6s
OK AeroTech I284 190.6oz 54ft/s 271ft/s 8.1G 983ft 7.8s 6s
OK KBA I550 196.1oz 59ft/s 314ft/s 11.0G 987ft 7.5s 6s
OK AeroTech I500 191.3oz 58ft/s 313ft/s 9.8G 1,056ft 7.8s 6s
warningsW Cesaroni I540 192.1oz 64ft/s 326ft/s 10.7G 1,079ft 7.8s 7s
OK KBA J520 196.5oz 59ft/s 321ft/s 12.0G 1,082ft 7.9s 7s
OK Loki J396 197.5oz 50ft/s 307ft/s 8.7G 1,083ft 8.0s 6s
OK AeroTech I600 192.2oz 70ft/s 327ft/s 14.3G 1,090ft 7.8s 7s
OK AeroTech I350 192.7oz 54ft/s 310ft/s 8.0G 1,091ft 8.0s 6s
OK Cesaroni J335 193.1oz 49ft/s 296ft/s 6.6G 1,092ft 8.2s 6s
OK AeroTech J420 193.9oz 58ft/s 310ft/s 9.3G 1,097ft 8.0s 6s
OK Cesaroni J316 192.4oz 50ft/s 291ft/s 7.2G 1,107ft 8.3s 6s
OK Cesaroni J381 195.3oz 55ft/s 307ft/s 8.3G 1,110ft 8.1s 6s
OK AeroTech J340 191.4oz 55ft/s 302ft/s 10.3G 1,115ft 8.1s 6s
OK AeroTech J350 194.5oz 67ft/s 314ft/s 14.2G 1,119ft 8.0s 6s
OK KBA J740 196.5oz 75ft/s 353ft/s 15.8G 1,120ft 7.8s 7s
OK Cesaroni J357 192.2oz 53ft/s 308ft/s 8.6G 1,120ft 8.2s 6s
OK AeroTech J425 193.3oz 50ft/s 328ft/s 7.2G 1,154ft 8.3s 7s
OK AeroTech J520 197.7oz 75ft/s 324ft/s 15.3G 1,160ft 8.0s 7s
OK Cesaroni J400 195.8oz 54ft/s 325ft/s 7.6G 1,188ft 8.4s 7s
OK AeroTech J500 194.1oz 68ft/s 350ft/s 13.6G 1,244ft 8.3s 7s
OK Loki J528 197.3oz 73ft/s 369ft/s 17.6G 1,272ft 8.2s 7s
OK Cesaroni J330 195.8oz 53ft/s 333ft/s 7.5G 1,318ft 8.8s 7s
OK Cesaroni J410 196.9oz 56ft/s 352ft/s 8.3G 1,331ft 8.8s 7s
OK AeroTech J575 203.2oz 75ft/s 381ft/s 14.3G 1,338ft 8.4s 7s
OK AeroTech J435 193.0oz 65ft/s 362ft/s 11.8G 1,341ft 8.6s 7s
OK Cesaroni J425 195.7oz 58ft/s 359ft/s 11.3G 1,352ft 8.7s 7s
OK Loki J712 197.5oz 71ft/s 401ft/s 15.0G 1,366ft 8.5s 7s
OK Loki J320 197.5oz 51ft/s 338ft/s 8.6G 1,395ft 9.1s 6s
OK Cesaroni J354 198.4oz 53ft/s 344ft/s 8.4G 1,412ft 9.1s 7s
OK Cesaroni J520 201.0oz 62ft/s 394ft/s 10.7G 1,441ft 8.8s 7s
OK Cesaroni J580 207.8oz 62ft/s 410ft/s 10.6G 1,497ft 9.0s 7s
OK AeroTech J825 201.9oz 86ft/s 477ft/s 19.9G 1,616ft 8.9s 8s
OK Cesaroni J394 204.1oz 51ft/s 403ft/s 6.8G 1,660ft 9.7s 7s
OK Cesaroni J595 201.5oz 70ft/s 443ft/s 15.2G 1,672ft 9.2s 8s
OK Cesaroni J600 203.0oz 65ft/s 457ft/s 11.8G 1,684ft 9.3s 8s
OK Cesaroni J420 201.8oz 65ft/s 415ft/s 13.0G 1,728ft 9.6s 7s
OK Cesaroni J453 205.0oz 62ft/s 420ft/s 11.7G 1,728ft 9.6s 7s
OK AeroTech J570 202.8oz 84ft/s 433ft/s 19.4G 1,746ft 9.4s 7s
OK Cesaroni J530 205.5oz 69ft/s 467ft/s 13.1G 1,869ft 9.7s 8s

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
failedG Contrail G130 speed at end of launch guide too slow (31ft/s)
failedA AeroTech G339 rocket doesn't reach a safe altitude (68ft)
failedG AeroTech G67 speed at end of launch guide too slow (17ft/s)
failedG Loki G69 speed at end of launch guide too slow (18ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (15ft/s)
failedA Contrail G234 rocket doesn't reach a safe altitude (66ft)
failedG Loki G70 speed at end of launch guide too slow (19ft/s)
failedG Loki G94 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (14ft/s)
failedG Loki G80 speed at end of launch guide too slow (22ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (4ft/s)
failedG Cesaroni G185 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (17ft/s)
failedG Loki G66 speed at end of launch guide too slow (21ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (16ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (16ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (10ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (17ft/s)
failedG Contrail G123 speed at end of launch guide too slow (31ft/s)
failedG Contrail G100 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (6ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (51ft)
failedG Contrail H222 speed at end of launch guide too slow (46ft/s)
failedA Contrail H300 rocket doesn't reach a safe altitude (120ft)
failedA Contrail H303 rocket doesn't reach a safe altitude (136ft)
failedG AeroTech H73 speed at end of launch guide too slow (15ft/s)
failedG Loki H100 speed at end of launch guide too slow (26ft/s)
failedG AeroTech H283 speed at end of launch guide too slow (46ft/s)
failedG AeroTech H148 speed at end of launch guide too slow (32ft/s)
failedG AeroTech H130 speed at end of launch guide too slow (39ft/s)
failedA AeroTech H669 rocket doesn't reach a safe altitude (247ft)
failedA Contrail H246 rocket doesn't reach a safe altitude (213ft)
failedG AeroTech H123 speed at end of launch guide too slow (27ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (24ft/s)
failedG AeroTech H242 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (25ft/s)
failedG AeroTech H219 speed at end of launch guide too slow (42ft/s)
failedG Loki H90 speed at end of launch guide too slow (26ft/s)
failedG Loki H144 speed at end of launch guide too slow (37ft/s)
failedG Loki H125 speed at end of launch guide too slow (32ft/s)
failedG Contrail H141 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (26ft/s)
failedG Loki H160 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (26ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (20ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni H225 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni H152 speed at end of launch guide too slow (31ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (22ft/s)
failedG AeroTech H170 speed at end of launch guide too slow (32ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (16ft/s)
failedG AeroTech I161 speed at end of launch guide too slow (34ft/s)
failedG AeroTech I218 speed at end of launch guide too slow (42ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni I180 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni I212 speed at end of launch guide too slow (34ft/s)
failedG AeroTech I225 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni I195 speed at end of launch guide too slow (36ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni I170 speed at end of launch guide too slow (34ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (9ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (11ft/s)
failedG Cesaroni I175 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni I236 speed at end of launch guide too slow (40ft/s)
failedG AeroTech I195 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni I223 speed at end of launch guide too slow (36ft/s)
failedG AeroTech I211 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni I287 speed at end of launch guide too slow (42ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (28ft/s)
failedG Loki I110 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni I285 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni I255 speed at end of launch guide too slow (43ft/s)
failedG AMW I297 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni I242 speed at end of launch guide too slow (40ft/s)
failedG KBA I301 speed at end of launch guide too slow (46ft/s)
failedG AeroTech I280 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni I125 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni I216 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni J285 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni J270 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni J290 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J270 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J150 speed at end of launch guide too slow (36ft/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.)

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.

CSV Excel   Download full details of the simulation runs with the various motors:
that worked, that failed, or all of them.
 
RockSim   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).

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