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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 126 motors that fit and appear to have enough thrust (681 motors didn't fit, 4 motors failed safety checks). 127 motor had thrust curves available and 221 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:   frenzy 4in
Owner: Laszlo Szijarto
Body Diameter: 4.00in
Dry Weight: 4.50lb
MMT Diameter: 54.0mm
MMT Length: 21.00in
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 Cesaroni I140 5.74lb 48ft/s 378ft/s 5.3G 1,982ft 11.5s 9s
OK AeroTech I215 5.66lb 66ft/s 429ft/s 9.4G 2,039ft 11.0s 9s
OK AeroTech I170 5.66lb 57ft/s 416ft/s 7.3G 2,083ft 11.4s 9s
OK AeroTech I599 5.63lb 122ft/s 502ft/s 29.7G 2,113ft 10.5s 10s
OK AeroTech I229 5.63lb 68ft/s 455ft/s 10.0G 2,157ft 11.2s 9s
OK Cesaroni I150 5.76lb 52ft/s 433ft/s 5.9G 2,432ft 12.4s 9s
OK Cesaroni I445 5.77lb 88ft/s 552ft/s 19.8G 2,491ft 11.4s 10s
OK Cesaroni I218 5.78lb 67ft/s 503ft/s 9.3G 2,589ft 12.2s 10s
OK Cesaroni I165 5.81lb 57ft/s 474ft/s 6.3G 2,729ft 12.9s 9s
OK Cesaroni I100 6.28lb 61ft/s 397ft/s 9.9G 3,274ft 14.7s 6s
OK Cesaroni J250 6.33lb 58ft/s 632ft/s 8.8G 3,455ft 13.7s 11s
OK AeroTech I65 6.16lb 55ft/s 411ft/s 6.2G 3,501ft 15.5s 7s
OK AeroTech J250 6.50lb 62ft/s 638ft/s 9.5G 3,538ft 13.8s 11s
OK Cesaroni J280 6.60lb 66ft/s 665ft/s 9.9G 3,553ft 13.7s 11s
OK Cesaroni J145 6.35lb 64ft/s 505ft/s 16.2G 3,622ft 14.5s 10s
OK Cesaroni J1055 6.20lb 139ft/s 844ft/s 40.7G 3,632ft 12.8s 12s
OK AeroTech J250 6.06lb 75ft/s 634ft/s 11.5G 3,649ft 13.7s 11s
OK AeroTech J315 6.38lb 74ft/s 690ft/s 12.3G 3,775ft 13.8s 11s
OK AeroTech J1299 6.34lb 159ft/s 951ft/s 51.9G 4,035ft 13.2s 13s
OK Gorilla J365 7.15lb 63ft/s 751ft/s 14.7G 4,046ft 14.4s 12s
OK Cesaroni J430 6.26lb 87ft/s 809ft/s 17.8G 4,051ft 13.8s 12s
OK AeroTech J180 6.28lb 72ft/s 606ft/s 10.7G 4,058ft 14.6s 10s
OK Cesaroni J240 6.43lb 65ft/s 688ft/s 9.2G 4,060ft 14.5s 11s
OK AeroTech J460 6.24lb 95ft/s 822ft/s 18.9G 4,118ft 13.8s 12s
OK AeroTech J275 6.41lb 68ft/s 688ft/s 10.6G 4,149ft 14.5s 11s
OK Cesaroni J293 6.35lb 69ft/s 742ft/s 11.6G 4,155ft 14.4s 12s
OK Cesaroni J244 6.51lb 63ft/s 709ft/s 8.1G 4,246ft 14.9s 11s
OK AMW J1365 6.97lb 153ft/s 957ft/s 50.1G 4,258ft 13.7s 13s
OK Cesaroni J210 6.36lb 66ft/s 630ft/s 10.6G 4,312ft 15.4s 11s
OK AMW J400 7.55lb 71ft/s 806ft/s 13.2G 4,422ft 14.8s 12s
OK Loki J350 7.28lb 72ft/s 807ft/s 13.0G 4,487ft 14.8s 12s
OK AMW J475 7.61lb 82ft/s 865ft/s 17.4G 4,595ft 14.7s 13s
OK AeroTech J1799 6.95lb 177ft/s 1,126ft/s 69.3G 4,638ft 13.8s 13s
OK Gorilla J167 7.18lb 67ft/s 581ft/s 10.6G 4,654ft 16.1s 10s
OK Cesaroni J1520 6.76lb 162ft/s 1,142ft/s 55.9G 4,700ft 13.9s 13s
OK Cesaroni J360 6.93lb 71ft/s 854ft/s 16.6G 4,726ft 15.0s 12s
OK Gorilla J465 7.11lb 78ft/s 905ft/s 19.6G 4,741ft 14.8s 13s
OK Cesaroni J380 7.35lb 71ft/s 873ft/s 12.0G 4,748ft 15.1s 12s
OK Gorilla J395 7.06lb 73ft/s 875ft/s 13.6G 4,802ft 15.1s 13s
OK AeroTech J450 7.20lb 77ft/s 900ft/s 15.9G 4,851ft 15.1s 13s
OK Gorilla J485 7.12lb 83ft/s 937ft/s 17.3G 4,887ft 15.0s 13s
OK Loki J820 7.17lb 128ft/s 1,036ft/s 31.7G 4,922ft 14.4s 13s
OK Gorilla J535 7.20lb 101ft/s 968ft/s 20.2G 4,928ft 14.8s 13s
OK AMW J395 7.30lb 79ft/s 861ft/s 13.6G 4,933ft 15.3s 13s
OK Gorilla J450 7.71lb 72ft/s 894ft/s 16.7G 4,951ft 15.4s 13s
OK AMW J440 7.21lb 113ft/s 922ft/s 24.1G 4,961ft 14.8s 13s
OK Loki J525 7.23lb 93ft/s 980ft/s 19.2G 4,970ft 14.9s 13s
OK AMW K1720 7.48lb 171ft/s 1,148ft/s 59.7G 4,998ft 14.4s 14s
OK AMW J325 7.21lb 84ft/s 793ft/s 15.9G 5,039ft 15.5s 12s
OK AeroTech J540 6.89lb 102ft/s 996ft/s 21.2G 5,051ft 14.7s 12s
OK AeroTech J401 6.51lb 87ft/s 954ft/s 15.6G 5,120ft 15.0s 12s
OK AeroTech J135 7.02lb 55ft/s 640ft/s 7.1G 5,154ft 16.9s 10s
OK AMW J745 7.19lb 113ft/s 1,070ft/s 26.5G 5,211ft 14.9s 13s
OK AMW J475 7.79lb 88ft/s 931ft/s 16.0G 5,331ft 15.7s 13s
OK Cesaroni J355 7.09lb 77ft/s 900ft/s 12.9G 5,357ft 15.7s 12s
OK AeroTech J800 6.89lb 117ft/s 1,119ft/s 30.0G 5,361ft 14.8s 13s
OK Cesaroni J760 6.87lb 110ft/s 1,164ft/s 28.4G 5,424ft 14.9s 13s
OK AMW K665 8.33lb 90ft/s 1,054ft/s 21.7G 5,491ft 15.4s 13s
OK Loki J175 7.26lb 72ft/s 687ft/s 12.1G 5,495ft 16.9s 10s
OK Cesaroni J295 6.97lb 80ft/s 837ft/s 13.2G 5,516ft 16.1s 12s
OK Loki J300 7.40lb 75ft/s 830ft/s 11.3G 5,517ft 16.4s 12s
OK AeroTech K2050 7.35lb 179ft/s 1,365ft/s 66.7G 5,537ft 14.6s 14s
OK AeroTech J415 7.08lb 83ft/s 972ft/s 16.1G 5,538ft 15.6s 12s
OK Cesaroni K2045 7.34lb 173ft/s 1,408ft/s 69.6G 5,552ft 14.6s 14s
OK Cesaroni J449 6.97lb 88ft/s 1,030ft/s 17.1G 5,557ft 15.5s 13s
OK AeroTech K456 7.77lb 82ft/s 989ft/s 14.0G 5,557ft 15.8s 13s
OK Cesaroni K360 7.22lb 74ft/s 963ft/s 11.3G 5,695ft 16.1s 13s
OK Cesaroni K530 8.12lb 81ft/s 1,084ft/s 15.2G 5,794ft 15.9s 13s
OK Gorilla K555 7.98lb 85ft/s 1,077ft/s 17.4G 5,797ft 16.0s 14s
OK Gorilla K520 7.68lb 83ft/s 1,063ft/s 16.5G 5,806ft 16.0s 13s
OK Gorilla K630 7.94lb 94ft/s 1,105ft/s 21.8G 5,807ft 15.8s 14s
OK Cesaroni K454 7.57lb 81ft/s 1,019ft/s 15.3G 5,810ft 16.0s 13s
OK AeroTech K400 7.13lb 87ft/s 968ft/s 16.0G 5,825ft 16.1s 13s
OK KBA K700 7.81lb 102ft/s 1,181ft/s 24.7G 5,847ft 15.6s 14s
OK Gorilla K533 8.28lb 80ft/s 1,045ft/s 18.5G 5,849ft 16.1s 13s
OK AMW K475 7.79lb 85ft/s 1,041ft/s 14.7G 5,880ft 16.1s 13s
OK Gorilla K222 8.02lb 71ft/s 702ft/s 10.9G 5,888ft 17.6s 11s
OK Cesaroni J140 7.32lb 50ft/s 623ft/s 5.6G 5,901ft 18.7s 9s
OK AeroTech K695 7.78lb 100ft/s 1,174ft/s 25.8G 5,917ft 15.5s 13s
OK AeroTech K513 8.13lb 86ft/s 1,089ft/s 17.1G 5,936ft 15.9s 13s
OK AeroTech K535 7.29lb 100ft/s 1,081ft/s 18.8G 5,960ft 15.8s 13s
OK AMW K535 7.94lb 87ft/s 1,060ft/s 17.1G 5,977ft 16.2s 13s
OK AeroTech K1100 7.45lb 140ft/s 1,336ft/s 39.6G 6,114ft 15.3s 14s
OK AMW K610 8.39lb 90ft/s 1,096ft/s 19.0G 6,142ft 16.3s 14s
OK AMW K935 7.82lb 120ft/s 1,279ft/s 30.5G 6,172ft 15.7s 14s
OK AMW K455 7.82lb 96ft/s 1,002ft/s 21.3G 6,188ft 16.3s 13s
OK AeroTech K185 7.66lb 63ft/s 756ft/s 8.8G 6,258ft 17.8s 10s
OK AMW K700 9.10lb 93ft/s 1,165ft/s 19.9G 6,275ft 16.3s 14s
OK Cesaroni K940 7.51lb 121ft/s 1,366ft/s 32.1G 6,304ft 15.5s 14s
OK Loki K690 9.79lb 88ft/s 1,161ft/s 18.7G 6,305ft 16.5s 14s
OK AeroTech K540 7.31lb 107ft/s 1,156ft/s 25.4G 6,311ft 15.7s 12s
OK AeroTech K550 7.78lb 98ft/s 1,112ft/s 22.2G 6,391ft 16.1s 13s
OK AMW K855 9.18lb 105ft/s 1,242ft/s 24.8G 6,392ft 16.2s 14s
OK Cesaroni K500 7.75lb 88ft/s 1,122ft/s 16.6G 6,433ft 16.4s 13s
OK Cesaroni K630 7.61lb 104ft/s 1,257ft/s 22.4G 6,516ft 16.0s 13s
OK Cesaroni K515 8.15lb 89ft/s 1,123ft/s 17.7G 6,562ft 16.6s 13s
OK Cesaroni K650 8.89lb 88ft/s 1,243ft/s 17.4G 6,568ft 16.5s 14s
OK Gorilla K700 8.28lb 94ft/s 1,243ft/s 21.0G 6,571ft 16.5s 14s
OK Gorilla K763 8.45lb 97ft/s 1,282ft/s 22.8G 6,579ft 16.4s 14s
OK Cesaroni K400 7.92lb 78ft/s 1,038ft/s 12.6G 6,618ft 17.1s 13s
OK AeroTech K1103 7.72lb 145ft/s 1,463ft/s 46.0G 6,625ft 15.6s 14s
OK Gorilla K805 8.41lb 100ft/s 1,294ft/s 28.7G 6,632ft 16.2s 14s
OK AeroTech K805 7.90lb 106ft/s 1,312ft/s 24.6G 6,647ft 16.1s 14s
OK Cesaroni K445 7.58lb 95ft/s 1,076ft/s 18.8G 6,690ft 16.6s 13s
OK Gorilla K327 8.51lb 81ft/s 882ft/s 17.2G 6,741ft 17.5s 12s
OK Cesaroni K520 7.97lb 88ft/s 1,168ft/s 16.4G 6,762ft 16.7s 13s
OK AMW K710 8.49lb 110ft/s 1,215ft/s 22.4G 6,810ft 16.6s 14s
OK AMW K670 8.66lb 104ft/s 1,231ft/s 20.8G 6,854ft 16.8s 14s
OK AMW K1250 8.50lb 137ft/s 1,470ft/s 41.8G 6,941ft 16.2s 15s
OK Cesaroni K740 7.74lb 109ft/s 1,363ft/s 24.6G 6,964ft 16.3s 14s
OK Loki K960 8.35lb 146ft/s 1,421ft/s 40.5G 7,000ft 16.2s 14s
OK Cesaroni K1200 8.10lb 139ft/s 1,572ft/s 37.1G 7,034ft 16.0s 14s
OK AMW K580 8.52lb 111ft/s 1,169ft/s 27.5G 7,076ft 17.0s 14s
OK Cesaroni K160 7.75lb 57ft/s 700ft/s 6.8G 7,130ft 19.8s 10s
OK Cesaroni K650 8.27lb 107ft/s 1,312ft/s 32.5G 7,242ft 16.7s 13s
OK Cesaroni K635 8.40lb 94ft/s 1,296ft/s 19.8G 7,256ft 16.8s 14s
OK Loki K250 8.45lb 87ft/s 832ft/s 20.3G 7,280ft 18.9s 12s
OK Cesaroni K780 8.25lb 112ft/s 1,453ft/s 26.3G 7,388ft 16.5s 14s
OK Loki K527 8.85lb 92ft/s 1,198ft/s 18.4G 7,514ft 17.7s 14s
OK Cesaroni K490 8.59lb 83ft/s 1,183ft/s 14.4G 7,544ft 17.6s 14s
OK Cesaroni K570 8.21lb 108ft/s 1,255ft/s 23.6G 7,631ft 17.1s 13s
OK Cesaroni K600 8.67lb 95ft/s 1,295ft/s 19.2G 7,667ft 17.3s 14s
OK Cesaroni K261 8.76lb 64ft/s 925ft/s 8.2G 8,296ft 19.9s 11s
warningsD AMW K590 8.29lb 16:1 thrust/weight ratio (no data)
warningsD Gorilla K695 7.80lb 20:1 thrust/weight ratio (no data)
warningsD Gorilla K828 8.55lb 22:1 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 (43ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J90 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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