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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 168 motors that fit and appear to have enough thrust (627 motors didn't fit, 16 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: Erik Czerwin
Body Diameter: 3.98in
Dry Weight: 8.00lb
MMT Diameter: 54.0mm
MMT Length: 30.00in
CD: 0.40

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 I215 9.16lb 51ft/s 256ft/s 5.4G 1,128ft 9.0s 7s
OK AeroTech I229 9.13lb 51ft/s 273ft/s 5.8G 1,236ft 9.4s 8s
OK AeroTech I599 9.13lb 95ft/s 305ft/s 17.9G 1,291ft 9.0s 8s
OK Cesaroni I218 9.28lb 50ft/s 311ft/s 5.4G 1,609ft 10.7s 8s
OK Cesaroni I445 9.27lb 73ft/s 340ft/s 12.0G 1,622ft 10.1s 9s
OK Contrail J245 11.42lb 56ft/s 327ft/s 7.6G 1,883ft 11.4s 9s
OK Contrail J355 11.45lb 63ft/s 374ft/s 10.0G 2,104ft 11.8s 10s
OK Hypertek J250 10.85lb 60ft/s 361ft/s 7.5G 2,275ft 12.4s 9s
OK Contrail J292 11.40lb 69ft/s 373ft/s 9.9G 2,324ft 12.5s 10s
OK Hypertek J170 10.83lb 55ft/s 332ft/s 6.3G 2,333ft 13.1s 8s
OK Cesaroni J145 9.85lb 49ft/s 340ft/s 10.1G 2,544ft 13.7s 9s
OK AeroTech J250 10.00lb 49ft/s 424ft/s 6.0G 2,656ft 13.4s 11s
OK Cesaroni J280 10.10lb 52ft/s 440ft/s 6.3G 2,700ft 13.5s 11s
OK AeroTech J250 9.56lb 57ft/s 430ft/s 7.0G 2,800ft 13.6s 11s
OK Hypertek J270 10.86lb 68ft/s 415ft/s 9.2G 2,833ft 13.6s 10s
OK Hypertek J190 10.85lb 58ft/s 388ft/s 6.9G 2,914ft 14.3s 9s
OK AeroTech J315 9.88lb 59ft/s 466ft/s 7.7G 2,994ft 13.9s 11s
OK Cesaroni J1055 9.70lb 110ft/s 540ft/s 25.6G 3,065ft 13.1s 12s
OK AeroTech J180 9.78lb 56ft/s 421ft/s 6.5G 3,180ft 14.6s 10s
OK Cesaroni J240 9.93lb 51ft/s 473ft/s 5.7G 3,236ft 14.7s 11s
OK Cesaroni J210 9.86lb 52ft/s 446ft/s 6.5G 3,305ft 15.1s 11s
OK Gorilla J365 10.65lb 51ft/s 515ft/s 9.8G 3,327ft 14.5s 12s
OK AeroTech J275 9.91lb 53ft/s 480ft/s 6.8G 3,394ft 14.9s 11s
OK Cesaroni J293 9.85lb 56ft/s 508ft/s 7.1G 3,418ft 14.8s 12s
OK Cesaroni J244 10.01lb 48ft/s 492ft/s 5.1G 3,427ft 15.2s 12s
OK Cesaroni J430 9.76lb 69ft/s 542ft/s 11.0G 3,438ft 14.4s 12s
OK AeroTech J460 9.74lb 75ft/s 556ft/s 11.9G 3,580ft 14.5s 12s
OK AeroTech J1299 9.84lb 128ft/s 617ft/s 33.1G 3,640ft 14.1s 13s
OK Gorilla J167 10.68lb 54ft/s 425ft/s 6.8G 3,701ft 16.2s 10s
OK AMW J400 11.05lb 57ft/s 569ft/s 9.2G 3,863ft 15.4s 13s
OK AMW J1365 10.47lb 120ft/s 639ft/s 33.0G 3,884ft 14.5s 14s
OK Loki J350 10.78lb 57ft/s 568ft/s 8.7G 3,902ft 15.5s 13s
OK AMW J475 11.11lb 65ft/s 615ft/s 11.9G 4,169ft 15.7s 14s
OK Cesaroni J360 10.43lb 57ft/s 605ft/s 10.7G 4,246ft 16.1s 13s
OK Cesaroni J380 10.85lb 58ft/s 620ft/s 8.3G 4,315ft 16.2s 14s
OK Gorilla J395 10.56lb 60ft/s 620ft/s 9.0G 4,321ft 16.2s 14s
OK Gorilla J465 10.61lb 63ft/s 638ft/s 13.4G 4,359ft 15.9s 14s
OK AeroTech J450 10.70lb 63ft/s 639ft/s 10.6G 4,421ft 16.1s 14s
OK AMW J395 10.80lb 65ft/s 623ft/s 8.9G 4,476ft 16.4s 14s
OK AMW J325 10.71lb 69ft/s 592ft/s 10.3G 4,534ft 16.6s 13s
OK Gorilla J450 11.21lb 61ft/s 644ft/s 11.4G 4,551ft 16.5s 14s
OK Gorilla J485 10.62lb 68ft/s 664ft/s 11.5G 4,554ft 16.2s 14s
OK AeroTech J1799 10.45lb 142ft/s 751ft/s 45.3G 4,616ft 15.4s 15s
OK Cesaroni J1520 10.26lb 129ft/s 758ft/s 37.3G 4,676ft 15.6s 15s
OK AMW J440 10.71lb 89ft/s 665ft/s 15.9G 4,689ft 16.1s 14s
OK Gorilla J535 10.70lb 82ft/s 685ft/s 13.2G 4,704ft 16.2s 14s
OK Loki J525 10.73lb 75ft/s 695ft/s 13.2G 4,739ft 16.3s 14s
OK Loki J175 10.76lb 58ft/s 522ft/s 7.8G 4,810ft 17.8s 11s
OK Loki J820 10.67lb 103ft/s 728ft/s 21.3G 4,865ft 16.1s 15s
OK AeroTech J401 10.01lb 69ft/s 686ft/s 9.8G 4,901ft 16.7s 14s
OK AeroTech J540 10.39lb 82ft/s 718ft/s 13.7G 4,976ft 16.6s 14s
OK AMW K1720 10.98lb 140ft/s 786ft/s 40.2G 4,992ft 16.0s 15s
OK AMW J475 11.29lb 71ft/s 684ft/s 10.7G 5,060ft 17.1s 14s
OK Loki J300 10.90lb 59ft/s 631ft/s 7.3G 5,083ft 17.7s 13s
OK Cesaroni J355 10.59lb 62ft/s 672ft/s 8.3G 5,087ft 17.4s 14s
OK AMW J745 10.69lb 91ft/s 758ft/s 17.5G 5,143ft 16.6s 15s
OK Cesaroni J295 10.47lb 64ft/s 641ft/s 8.4G 5,166ft 17.6s 14s
OK Gorilla K222 11.52lb 58ft/s 549ft/s 7.3G 5,253ft 18.6s 12s
OK AeroTech K456 11.27lb 65ft/s 738ft/s 9.3G 5,469ft 17.7s 15s
OK AeroTech J415 10.58lb 67ft/s 727ft/s 10.8G 5,477ft 17.6s 14s
OK AeroTech J800 10.39lb 97ft/s 802ft/s 19.6G 5,505ft 17.0s 15s
OK Cesaroni J449 10.47lb 69ft/s 757ft/s 11.1G 5,517ft 17.5s 15s
OK AMW K665 11.83lb 77ft/s 779ft/s 15.4G 5,522ft 17.3s 15s
OK Cesaroni K360 10.72lb 58ft/s 725ft/s 7.6G 5,544ft 18.0s 15s
OK Cesaroni J760 10.37lb 93ft/s 825ft/s 18.5G 5,576ft 17.1s 15s
OK AeroTech K400 10.63lb 73ft/s 733ft/s 10.4G 5,678ft 18.0s 15s
OK AeroTech K185 11.16lb 50ft/s 588ft/s 5.9G 5,783ft 19.4s 12s
OK Gorilla K520 11.18lb 70ft/s 791ft/s 11.4G 5,802ft 18.0s 15s
OK Cesaroni K454 11.07lb 65ft/s 771ft/s 10.1G 5,809ft 18.0s 15s
OK Gorilla K555 11.48lb 69ft/s 796ft/s 12.0G 5,812ft 18.0s 15s
OK AMW K475 11.29lb 67ft/s 783ft/s 10.8G 5,865ft 18.1s 15s
OK Gorilla K533 11.78lb 66ft/s 790ft/s 12.7G 5,891ft 18.0s 15s
OK Cesaroni K530 11.62lb 69ft/s 812ft/s 11.0G 5,914ft 18.1s 15s
OK Gorilla K630 11.44lb 79ft/s 820ft/s 15.2G 5,916ft 17.8s 16s
OK AeroTech K2050 10.85lb 140ft/s 940ft/s 44.9G 5,989ft 17.1s 16s
OK AMW K535 11.44lb 73ft/s 803ft/s 11.6G 6,029ft 18.2s 16s
OK KBA K700 11.31lb 87ft/s 864ft/s 17.7G 6,059ft 17.8s 16s
OK Cesaroni K2045 10.84lb 145ft/s 963ft/s 46.7G 6,076ft 17.2s 16s
OK AeroTech K513 11.63lb 72ft/s 827ft/s 12.1G 6,123ft 18.2s 16s
OK AeroTech K535 10.79lb 77ft/s 826ft/s 12.3G 6,178ft 18.2s 15s
OK AMW K455 11.32lb 81ft/s 785ft/s 14.4G 6,258ft 18.5s 15s
OK AMW K610 11.89lb 77ft/s 834ft/s 13.1G 6,280ft 18.4s 16s
OK AeroTech K695 11.28lb 85ft/s 880ft/s 17.4G 6,283ft 18.0s 16s
OK Loki K690 13.29lb 73ft/s 891ft/s 13.7G 6,602ft 18.8s 16s
OK AMW K935 11.32lb 100ft/s 945ft/s 20.8G 6,620ft 18.2s 17s
OK AMW K700 12.60lb 77ft/s 894ft/s 14.8G 6,626ft 18.7s 16s
OK Gorilla K327 12.01lb 68ft/s 718ft/s 12.0G 6,713ft 19.6s 14s
OK AeroTech K1100 10.95lb 113ft/s 984ft/s 26.5G 6,754ft 18.2s 16s
OK Cesaroni K500 11.25lb 72ft/s 880ft/s 11.2G 6,780ft 19.1s 16s
OK AeroTech K550 11.28lb 81ft/s 871ft/s 15.4G 6,792ft 18.8s 15s
OK Cesaroni K400 11.42lb 66ft/s 830ft/s 8.4G 6,797ft 19.5s 16s
OK AeroTech K540 10.81lb 84ft/s 904ft/s 16.8G 6,835ft 18.7s 15s
OK AMW K855 12.68lb 89ft/s 949ft/s 18.2G 6,884ft 18.8s 17s
OK Cesaroni K515 11.65lb 74ft/s 884ft/s 12.1G 6,915ft 19.2s 16s
OK Cesaroni K940 11.01lb 100ft/s 1,011ft/s 21.6G 6,974ft 18.5s 17s
OK Gorilla K700 11.78lb 81ft/s 949ft/s 14.5G 7,005ft 19.1s 17s
OK Cesaroni K445 11.08lb 79ft/s 865ft/s 12.5G 7,030ft 19.4s 16s
OK Loki K250 11.95lb 69ft/s 689ft/s 14.1G 7,078ft 20.9s 14s
OK Gorilla K763 11.95lb 80ft/s 977ft/s 15.9G 7,116ft 19.1s 17s
OK Cesaroni K650 12.39lb 75ft/s 962ft/s 12.9G 7,116ft 19.3s 17s
OK Cesaroni K630 11.11lb 82ft/s 972ft/s 15.0G 7,152ft 19.0s 16s
OK Cesaroni K520 11.47lb 73ft/s 926ft/s 11.1G 7,233ft 19.5s 16s
OK Gorilla K805 11.91lb 83ft/s 994ft/s 20.4G 7,270ft 19.1s 17s
OK AMW K710 11.99lb 91ft/s 949ft/s 15.6G 7,309ft 19.3s 17s
OK AeroTech K805 11.40lb 86ft/s 1,009ft/s 16.9G 7,316ft 19.1s 17s
OK AMW K670 12.16lb 86ft/s 963ft/s 14.4G 7,361ft 19.4s 17s
OK AeroTech K990 12.65lb 88ft/s 1,029ft/s 18.8G 7,443ft 19.3s 17s
OK AeroTech K850 12.50lb 90ft/s 1,040ft/s 19.3G 7,467ft 19.2s 17s
OK AeroTech K1103 11.22lb 115ft/s 1,095ft/s 31.3G 7,549ft 18.9s 17s
OK AMW K580 12.02lb 92ft/s 938ft/s 19.2G 7,588ft 19.7s 17s
OK Cesaroni K740 11.24lb 89ft/s 1,063ft/s 16.7G 7,814ft 19.5s 17s
OK AMW K1250 12.00lb 113ft/s 1,116ft/s 29.2G 7,856ft 19.3s 18s
OK Loki K960 11.85lb 118ft/s 1,096ft/s 28.2G 7,918ft 19.4s 17s
OK Loki K527 12.35lb 79ft/s 972ft/s 12.9G 8,082ft 20.5s 16s
OK Cesaroni K675 12.28lb 82ft/s 1,039ft/s 15.6G 8,086ft 20.1s 17s
OK Cesaroni K635 11.90lb 82ft/s 1,048ft/s 13.8G 8,108ft 20.1s 17s
OK Cesaroni K650 11.77lb 88ft/s 1,056ft/s 22.5G 8,145ft 20.0s 17s
OK Gorilla K980 13.42lb 94ft/s 1,077ft/s 21.7G 8,160ft 20.0s 18s
OK Cesaroni K1200 11.60lb 111ft/s 1,197ft/s 25.6G 8,195ft 19.5s 18s
OK Cesaroni K490 12.09lb 70ft/s 985ft/s 9.9G 8,207ft 20.7s 17s
OK AeroTech K828 12.90lb 97ft/s 1,101ft/s 21.8G 8,221ft 19.9s 17s
OK AeroTech K1275 12.38lb 119ft/s 1,178ft/s 27.6G 8,331ft 19.7s 18s
OK Cesaroni K261 12.26lb 52ft/s 790ft/s 5.7G 8,404ft 22.5s 14s
OK AeroTech K270 12.63lb 57ft/s 760ft/s 6.6G 8,437ft 22.5s 14s
OK Cesaroni K570 11.71lb 89ft/s 1,041ft/s 16.2G 8,507ft 20.5s 17s
OK AMW K1075 13.82lb 94ft/s 1,124ft/s 20.5G 8,541ft 20.4s 18s
OK Cesaroni K780 11.75lb 93ft/s 1,162ft/s 18.1G 8,567ft 20.1s 17s
OK Cesaroni K600 12.17lb 82ft/s 1,068ft/s 13.4G 8,587ft 20.7s 17s
OK AeroTech K700 12.49lb 95ft/s 1,109ft/s 18.3G 8,898ft 20.6s 17s
OK Cesaroni K815 12.84lb 86ft/s 1,178ft/s 20.0G 8,951ft 20.7s 18s
OK AeroTech K375 12.64lb 108ft/s 931ft/s 23.0G 9,012ft 21.5s 16s
OK Cesaroni K750 12.53lb 85ft/s 1,163ft/s 16.4G 9,033ft 20.7s 18s
OK AeroTech K480 12.58lb 86ft/s 1,049ft/s 15.3G 9,047ft 21.1s 16s
OK Gorilla K1075 13.60lb 93ft/s 1,210ft/s 20.4G 9,112ft 20.8s 19s
OK Cesaroni K1440 12.17lb 130ft/s 1,338ft/s 34.2G 9,156ft 20.1s 18s
OK KBA K1750 13.65lb 116ft/s 1,324ft/s 37.3G 9,158ft 20.4s 19s
OK Loki K830 13.29lb 74ft/s 1,238ft/s 18.5G 9,186ft 21.1s 18s
OK Cesaroni K711 12.85lb 90ft/s 1,144ft/s 25.5G 9,214ft 21.0s 18s
OK AeroTech K455 13.04lb 107ft/s 968ft/s 21.6G 9,215ft 21.7s 16s
OK Cesaroni K820 12.37lb 96ft/s 1,202ft/s 29.1G 9,306ft 20.8s 18s
OK AMW K1130 13.67lb 103ft/s 1,233ft/s 23.6G 9,385ft 21.0s 19s
OK Gorilla K1185 13.60lb 96ft/s 1,274ft/s 23.0G 9,399ft 21.0s 19s
OK Cesaroni K260 12.51lb 58ft/s 839ft/s 6.7G 9,428ft 23.3s 15s
OK KBA K750 13.81lb 91ft/s 1,147ft/s 18.3G 9,453ft 21.3s 18s
OK Gorilla K470 13.13lb 90ft/s 997ft/s 17.2G 9,524ft 21.7s 16s
OK AeroTech K1050 12.86lb 109ft/s 1,296ft/s 24.8G 9,582ft 20.9s 18s
OK Cesaroni K660 12.30lb 94ft/s 1,170ft/s 18.8G 9,586ft 21.2s 18s
OK Cesaroni K590 12.40lb 112ft/s 1,079ft/s 31.9G 9,613ft 21.4s 17s
OK AMW L1276 14.53lb 100ft/s 1,292ft/s 23.1G 9,815ft 21.4s 19s
OK KBA L2300 13.80lb 138ft/s 1,445ft/s 49.7G 9,888ft 20.8s 20s
OK Loki K350 13.60lb 86ft/s 914ft/s 19.2G 9,944ft 23.2s 16s
OK AMW L985 13.67lb 105ft/s 1,261ft/s 23.2G 9,971ft 21.5s 19s
OK AeroTech L1090 13.36lb 105ft/s 1,293ft/s 21.3G 9,995ft 21.4s 18s
OK AeroTech L1000 12.84lb 104ft/s 1,338ft/s 22.2G 10,064ft 21.1s 18s
OK Cesaroni K300 13.00lb 63ft/s 918ft/s 8.4G 10,238ft 23.7s 15s
OK Cesaroni L990 12.93lb 104ft/s 1,344ft/s 27.3G 10,290ft 21.4s 19s
OK Cesaroni L1030 13.15lb 96ft/s 1,387ft/s 25.4G 10,295ft 21.4s 19s
OK Loki L1400 13.60lb 113ft/s 1,422ft/s 31.0G 10,324ft 21.3s 19s
OK AeroTech K250 12.88lb 53ft/s 894ft/s 6.7G 10,354ft 24.4s 14s
OK Cesaroni L730 12.95lb 98ft/s 1,249ft/s 20.1G 10,443ft 21.9s 18s
OK Cesaroni L805 13.52lb 94ft/s 1,286ft/s 23.6G 10,487ft 21.9s 18s
OK Cesaroni L265 13.47lb 56ft/s 879ft/s 6.8G 10,598ft 25.1s 14s
OK Cesaroni L640 12.95lb 107ft/s 1,161ft/s 25.7G 10,623ft 22.2s 17s
OK Cesaroni L935 13.60lb 104ft/s 1,393ft/s 24.5G 11,093ft 22.1s 19s
OK Loki L1040 14.53lb 100ft/s 1,563ft/s 20.4G 12,674ft 23.3s 20s
warningsD AMW K590 11.79lb 11:1 thrust/weight ratio (no data)
warningsD Gorilla K695 11.30lb 14:1 thrust/weight ratio (no data)
warningsD Gorilla K828 12.05lb 15:1 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 (33ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (36ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (34ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni I100 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (40ft/s)
failedG Hypertek J115 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (36ft/s)
failedG Hypertek J120 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni K160 speed at end of launch guide too slow (46ft/s)

G These simulations were run with a launch guide length of 8ft (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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