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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 135 motors that fit and appear to have enough thrust (627 motors didn't fit, 49 motors failed safety checks). 181 motor had thrust curves available and 329 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:   Skunk Ace
Owner: John Cummings
Body Diameter: 4.00in
Dry Weight: 9.80lb
MMT Diameter: 54.0mm
MMT Length: 36.00in
CD: 0.50

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 AeroTech I599 10.93lb 75ft/s 251ft/s 14.7G 928ft 7.7s 7s
OK Cesaroni I445 11.07lb 57ft/s 279ft/s 9.9G 1,174ft 8.8s 8s
OK Contrail J355 13.25lb 52ft/s 314ft/s 8.5G 1,594ft 10.5s 9s
OK Hypertek J250 12.65lb 48ft/s 299ft/s 6.2G 1,709ft 11.0s 8s
OK Contrail J292 13.20lb 53ft/s 313ft/s 8.4G 1,771ft 11.1s 9s
OK Hypertek J270 12.66lb 55ft/s 346ft/s 7.8G 2,161ft 12.1s 9s
OK Cesaroni J1055 11.50lb 87ft/s 450ft/s 21.3G 2,350ft 11.7s 11s
OK Cesaroni J430 11.56lb 55ft/s 448ft/s 9.2G 2,634ft 12.9s 11s
OK AeroTech J460 11.54lb 59ft/s 460ft/s 9.9G 2,759ft 13.1s 11s
OK AeroTech J1299 11.64lb 102ft/s 516ft/s 27.7G 2,838ft 12.7s 12s
OK AMW J1365 12.27lb 96ft/s 539ft/s 27.8G 3,059ft 13.1s 12s
OK AMW J475 12.91lb 52ft/s 517ft/s 10.0G 3,289ft 14.2s 12s
OK Gorilla J395 12.36lb 48ft/s 518ft/s 7.5G 3,383ft 14.7s 12s
OK Gorilla J465 12.41lb 50ft/s 535ft/s 11.3G 3,433ft 14.5s 12s
OK AeroTech J450 12.50lb 51ft/s 536ft/s 8.9G 3,482ft 14.7s 12s
OK AMW J395 12.60lb 52ft/s 522ft/s 7.4G 3,525ft 14.9s 12s
OK AMW J325 12.51lb 53ft/s 495ft/s 8.7G 3,568ft 15.1s 12s
OK Gorilla J485 12.42lb 54ft/s 556ft/s 9.6G 3,598ft 14.8s 13s
OK Gorilla J450 13.01lb 49ft/s 543ft/s 9.7G 3,606ft 15.0s 12s
OK AeroTech J1799 12.25lb 113ft/s 633ft/s 38.4G 3,698ft 14.1s 13s
OK AMW J440 12.51lb 71ft/s 561ft/s 13.4G 3,735ft 14.7s 13s
OK Cesaroni J1520 12.06lb 102ft/s 637ft/s 31.2G 3,738ft 14.2s 14s
OK Gorilla J535 12.50lb 66ft/s 577ft/s 11.2G 3,747ft 14.8s 13s
OK Loki J525 12.53lb 60ft/s 584ft/s 11.1G 3,770ft 14.9s 13s
OK AeroTech J401 11.81lb 52ft/s 571ft/s 8.1G 3,879ft 15.3s 13s
OK Loki J820 12.47lb 82ft/s 615ft/s 17.9G 3,905ft 14.7s 13s
OK AeroTech J540 12.19lb 64ft/s 602ft/s 11.5G 3,977ft 15.2s 13s
OK AMW K1720 12.78lb 112ft/s 668ft/s 34.2G 4,027ft 14.7s 14s
OK Cesaroni J355 12.39lb 49ft/s 562ft/s 6.9G 4,039ft 15.9s 13s
OK AMW J475 13.09lb 55ft/s 579ft/s 9.1G 4,054ft 15.7s 13s
OK Cesaroni J295 12.27lb 50ft/s 535ft/s 7.0G 4,091ft 16.2s 12s
OK AMW J745 12.49lb 72ft/s 640ft/s 14.8G 4,130ft 15.2s 14s
OK AeroTech J415 12.38lb 53ft/s 610ft/s 9.0G 4,399ft 16.2s 13s
OK AeroTech K456 13.07lb 53ft/s 622ft/s 7.9G 4,403ft 16.3s 13s
OK Cesaroni J449 12.27lb 55ft/s 634ft/s 9.3G 4,427ft 16.2s 13s
OK AeroTech J800 12.19lb 77ft/s 675ft/s 16.5G 4,452ft 15.6s 14s
OK AMW K665 13.63lb 62ft/s 663ft/s 13.1G 4,486ft 15.9s 14s
OK Cesaroni J760 12.17lb 74ft/s 694ft/s 15.6G 4,507ft 15.7s 14s
OK AeroTech K400 12.43lb 56ft/s 617ft/s 8.7G 4,557ft 16.5s 13s
OK Gorilla K520 12.98lb 54ft/s 669ft/s 9.6G 4,691ft 16.6s 14s
OK Cesaroni K454 12.87lb 52ft/s 650ft/s 8.6G 4,696ft 16.7s 14s
OK Gorilla K555 13.28lb 56ft/s 675ft/s 10.2G 4,711ft 16.6s 14s
OK AMW K475 13.09lb 55ft/s 663ft/s 9.1G 4,747ft 16.7s 14s
OK Gorilla K533 13.58lb 53ft/s 672ft/s 10.8G 4,792ft 16.7s 14s
OK Cesaroni K530 13.42lb 54ft/s 687ft/s 9.3G 4,808ft 16.7s 14s
OK Gorilla K630 13.24lb 60ft/s 697ft/s 12.9G 4,815ft 16.4s 14s
OK AMW K535 13.24lb 59ft/s 681ft/s 9.9G 4,900ft 16.8s 14s
OK AeroTech K2050 12.65lb 119ft/s 797ft/s 38.0G 4,910ft 15.8s 15s
OK KBA K700 13.11lb 66ft/s 734ft/s 15.0G 4,945ft 16.4s 15s
OK Cesaroni K2045 12.64lb 115ft/s 816ft/s 39.4G 4,990ft 15.9s 15s
OK AeroTech K513 13.43lb 58ft/s 702ft/s 10.2G 5,003ft 16.9s 14s
OK AeroTech K535 12.59lb 62ft/s 697ft/s 10.4G 5,033ft 16.9s 14s
OK AMW K455 13.12lb 65ft/s 667ft/s 12.3G 5,099ft 17.1s 14s
OK AMW K610 13.69lb 62ft/s 712ft/s 11.2G 5,139ft 17.0s 14s
OK AeroTech K695 13.08lb 66ft/s 747ft/s 14.8G 5,156ft 16.7s 14s
OK AMW K935 13.12lb 80ft/s 805ft/s 17.8G 5,452ft 16.9s 15s
OK Loki K690 15.09lb 61ft/s 766ft/s 11.8G 5,457ft 17.4s 15s
OK AMW K700 14.40lb 63ft/s 767ft/s 12.7G 5,473ft 17.4s 15s
OK Gorilla K327 13.81lb 55ft/s 611ft/s 10.2G 5,492ft 18.2s 13s
OK Cesaroni K400 13.22lb 51ft/s 702ft/s 7.1G 5,553ft 18.2s 14s
OK Cesaroni K500 13.05lb 58ft/s 745ft/s 9.4G 5,564ft 17.8s 15s
OK AeroTech K1100 12.75lb 90ft/s 836ft/s 22.6G 5,586ft 16.9s 15s
OK AeroTech K550 13.08lb 64ft/s 741ft/s 13.1G 5,597ft 17.5s 14s
OK AeroTech K540 12.61lb 68ft/s 766ft/s 14.3G 5,641ft 17.4s 14s
OK Cesaroni K515 13.45lb 57ft/s 752ft/s 10.3G 5,693ft 17.9s 15s
OK AMW K855 14.48lb 69ft/s 815ft/s 15.6G 5,713ft 17.4s 15s
OK Loki K250 13.75lb 55ft/s 582ft/s 12.1G 5,749ft 19.5s 13s
OK Cesaroni K940 12.81lb 80ft/s 858ft/s 18.4G 5,772ft 17.2s 15s
OK Gorilla K700 13.58lb 65ft/s 810ft/s 12.4G 5,777ft 17.8s 15s
OK Cesaroni K445 12.88lb 62ft/s 734ft/s 10.6G 5,778ft 18.0s 14s
OK Gorilla K763 13.75lb 65ft/s 835ft/s 13.6G 5,891ft 17.8s 16s
OK Cesaroni K650 14.19lb 62ft/s 822ft/s 11.0G 5,902ft 18.0s 15s
OK Cesaroni K630 12.91lb 66ft/s 824ft/s 12.8G 5,923ft 17.8s 15s
OK Cesaroni K520 13.27lb 59ft/s 786ft/s 9.4G 5,970ft 18.2s 15s
OK Gorilla K805 13.71lb 67ft/s 851ft/s 17.4G 6,041ft 17.8s 16s
OK AMW K710 13.79lb 70ft/s 814ft/s 13.4G 6,063ft 18.0s 15s
OK AeroTech K805 13.20lb 70ft/s 859ft/s 14.4G 6,070ft 17.8s 16s
OK AMW K670 13.96lb 70ft/s 826ft/s 12.4G 6,105ft 18.1s 16s
OK AeroTech K990 14.45lb 72ft/s 885ft/s 16.1G 6,215ft 18.0s 16s
OK AeroTech K850 14.30lb 73ft/s 893ft/s 16.5G 6,238ft 18.0s 16s
OK AMW K580 13.82lb 71ft/s 805ft/s 16.5G 6,302ft 18.4s 15s
OK AeroTech K1103 13.02lb 99ft/s 934ft/s 26.8G 6,304ft 17.6s 16s
OK Cesaroni K740 13.04lb 71ft/s 905ft/s 14.2G 6,515ft 18.3s 16s
OK AMW K1250 13.80lb 90ft/s 960ft/s 25.3G 6,582ft 18.0s 16s
OK Loki K960 13.65lb 95ft/s 941ft/s 24.3G 6,632ft 18.2s 16s
OK Loki K527 14.15lb 61ft/s 836ft/s 11.1G 6,736ft 19.2s 15s
OK Cesaroni K675 14.08lb 64ft/s 892ft/s 13.5G 6,770ft 18.8s 16s
OK Cesaroni K635 13.70lb 66ft/s 896ft/s 11.8G 6,784ft 18.9s 16s
OK Cesaroni K650 13.57lb 71ft/s 904ft/s 19.4G 6,835ft 18.8s 15s
OK Cesaroni K490 13.89lb 57ft/s 842ft/s 8.5G 6,841ft 19.5s 15s
OK Gorilla K980 15.22lb 77ft/s 935ft/s 18.9G 6,854ft 18.7s 17s
OK Cesaroni K1200 13.40lb 89ft/s 1,023ft/s 22.0G 6,891ft 18.3s 17s
OK AeroTech K828 14.70lb 79ft/s 950ft/s 19.0G 6,926ft 18.7s 16s
OK AeroTech K1275 14.18lb 95ft/s 1,015ft/s 23.9G 7,039ft 18.5s 16s
OK Cesaroni K570 13.51lb 72ft/s 892ft/s 13.9G 7,132ft 19.2s 16s
OK AMW K1075 15.62lb 78ft/s 979ft/s 18.0G 7,188ft 19.1s 17s
OK Cesaroni K600 13.97lb 64ft/s 916ft/s 11.5G 7,211ft 19.4s 16s
OK Cesaroni K780 13.55lb 75ft/s 994ft/s 15.6G 7,227ft 19.0s 16s
OK AeroTech K700 14.29lb 76ft/s 957ft/s 15.8G 7,531ft 19.4s 16s
OK AeroTech K375 14.44lb 87ft/s 801ft/s 20.0G 7,569ft 20.3s 15s
OK Cesaroni K815 14.64lb 67ft/s 1,016ft/s 17.4G 7,570ft 19.4s 17s
OK AeroTech K480 14.38lb 67ft/s 905ft/s 13.3G 7,633ft 19.9s 15s
OK Cesaroni K750 14.33lb 69ft/s 1,002ft/s 14.2G 7,649ft 19.5s 16s
OK Gorilla K1075 15.40lb 76ft/s 1,051ft/s 17.7G 7,706ft 19.5s 17s
OK Loki K830 15.09lb 61ft/s 1,068ft/s 15.9G 7,759ft 19.9s 17s
OK AeroTech K455 14.84lb 81ft/s 836ft/s 18.9G 7,768ft 20.4s 15s
OK KBA K1750 15.45lb 94ft/s 1,151ft/s 32.2G 7,781ft 19.1s 18s
OK Cesaroni K1440 13.97lb 103ft/s 1,152ft/s 29.6G 7,784ft 19.0s 17s
OK Cesaroni K711 14.65lb 74ft/s 988ft/s 22.3G 7,804ft 19.8s 16s
OK Cesaroni K820 14.17lb 78ft/s 1,038ft/s 25.2G 7,888ft 19.6s 17s
OK AMW K1130 15.47lb 84ft/s 1,074ft/s 20.7G 7,960ft 19.7s 17s
OK Gorilla K1185 15.40lb 73ft/s 1,107ft/s 20.0G 7,961ft 19.7s 18s
OK KBA K750 15.61lb 75ft/s 998ft/s 16.1G 8,023ft 20.1s 17s
OK Gorilla K470 14.93lb 70ft/s 864ft/s 15.0G 8,054ft 20.5s 15s
OK Cesaroni K660 14.10lb 76ft/s 1,009ft/s 16.3G 8,128ft 20.0s 16s
OK Cesaroni K590 14.20lb 90ft/s 932ft/s 27.7G 8,137ft 20.2s 16s
OK AeroTech K1050 14.66lb 89ft/s 1,122ft/s 21.6G 8,149ft 19.7s 17s
OK AMW L1276 16.33lb 83ft/s 1,131ft/s 20.2G 8,342ft 20.1s 18s
OK Loki K350 15.40lb 72ft/s 790ft/s 16.9G 8,364ft 21.9s 15s
OK KBA L2300 15.60lb 121ft/s 1,262ft/s 43.2G 8,433ft 19.6s 18s
OK AMW L985 15.47lb 86ft/s 1,099ft/s 20.3G 8,475ft 20.2s 18s
OK AeroTech L1090 15.16lb 81ft/s 1,124ft/s 18.6G 8,525ft 20.1s 17s
OK Cesaroni K300 14.80lb 52ft/s 791ft/s 7.3G 8,597ft 22.4s 14s
OK AeroTech L1000 14.64lb 84ft/s 1,160ft/s 19.4G 8,609ft 20.0s 17s
OK Cesaroni L990 14.73lb 85ft/s 1,165ft/s 23.8G 8,800ft 20.2s 17s
OK Cesaroni L1030 14.95lb 79ft/s 1,202ft/s 22.2G 8,814ft 20.3s 18s
OK Loki L1400 15.40lb 92ft/s 1,238ft/s 26.8G 8,826ft 20.1s 18s
OK Cesaroni L730 14.75lb 80ft/s 1,083ft/s 17.6G 8,912ft 20.7s 17s
OK Cesaroni L805 15.32lb 78ft/s 1,118ft/s 20.7G 8,979ft 20.7s 17s
OK Cesaroni L640 14.75lb 86ft/s 1,008ft/s 22.4G 9,051ft 20.9s 16s
OK Cesaroni L935 15.40lb 86ft/s 1,213ft/s 21.5G 9,525ft 20.9s 18s
OK Loki L1040 16.33lb 83ft/s 1,370ft/s 17.9G 10,933ft 22.1s 18s
warningsD AMW K590 13.59lb 10:1 thrust/weight ratio (no data)
warningsD Gorilla K695 13.10lb 12:1 thrust/weight ratio (no data)
warningsD Gorilla K828 13.85lb 13:1 thrust/weight ratio (no data)

D No simulation data found for this motor.

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 AeroTech I117 speed at end of launch guide too slow (24ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (28ft/s)
failedG AeroTech I215 speed at end of launch guide too slow (41ft/s)
failedG AeroTech I229 speed at end of launch guide too slow (39ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (25ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni I218 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni I100 speed at end of launch guide too slow (37ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (31ft/s)
failedG Contrail J245 speed at end of launch guide too slow (45ft/s)
failedG Hypertek J115 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni J145 speed at end of launch guide too slow (39ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (45ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni J280 speed at end of launch guide too slow (41ft/s)
failedG Hypertek J170 speed at end of launch guide too slow (44ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (37ft/s)
failedG Hypertek J120 speed at end of launch guide too slow (36ft/s)
failedG AeroTech J315 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J180 speed at end of launch guide too slow (44ft/s)
failedG AeroTech J275 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J240 speed at end of launch guide too slow (40ft/s)
failedG Hypertek J190 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni J210 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni J293 speed at end of launch guide too slow (44ft/s)
failedG Gorilla J365 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (37ft/s)
failedG Loki J350 speed at end of launch guide too slow (45ft/s)
failedG Gorilla J167 speed at end of launch guide too slow (43ft/s)
failedG AMW J400 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni J360 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J380 speed at end of launch guide too slow (45ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (34ft/s)
failedG Loki J175 speed at end of launch guide too slow (45ft/s)
failedG Loki J300 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni K360 speed at end of launch guide too slow (47ft/s)
failedG Gorilla K222 speed at end of launch guide too slow (47ft/s)
failedG AeroTech K185 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni K160 speed at end of launch guide too slow (37ft/s)
failedG AeroTech K270 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni K261 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni K260 speed at end of launch guide too slow (48ft/s)
failedG AeroTech K250 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni L265 speed at end of launch guide too slow (46ft/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.)

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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