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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 146 motors that fit and appear to have enough thrust (660 motors didn't fit, 5 motors failed safety checks). 148 motor had thrust curves available and 271 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:   Lee's rocket
Owner: Ernest Strother
Body Diameter: 2.75in
Dry Weight: 5.00lb
MMT Diameter: 54.0mm
MMT Length: 24.00in
CD: 1.00
Web Site:

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 6.16lb 66ft/s 395ft/s 8.5G 1,920ft 10.9s 9s
OK AeroTech I170 6.16lb 53ft/s 384ft/s 6.6G 1,956ft 11.3s 9s
OK AeroTech I599 6.13lb 117ft/s 461ft/s 27.2G 2,022ft 10.5s 10s
OK AeroTech I229 6.13lb 65ft/s 420ft/s 9.1G 2,044ft 11.1s 9s
OK Cesaroni I150 6.26lb 51ft/s 402ft/s 5.3G 2,302ft 12.4s 9s
OK Cesaroni I445 6.27lb 85ft/s 510ft/s 18.2G 2,412ft 11.5s 10s
OK Cesaroni I218 6.28lb 64ft/s 467ft/s 8.5G 2,489ft 12.2s 10s
OK Cesaroni I165 6.31lb 53ft/s 443ft/s 5.7G 2,613ft 12.9s 9s
OK Hypertek J115 7.83lb 53ft/s 385ft/s 5.8G 2,954ft 14.5s 8s
OK Hypertek J250 7.85lb 72ft/s 499ft/s 10.7G 3,122ft 13.5s 10s
OK Cesaroni I100 6.78lb 58ft/s 374ft/s 9.1G 3,132ft 14.7s 6s
OK Hypertek J170 7.83lb 66ft/s 464ft/s 9.0G 3,275ft 14.3s 10s
OK AeroTech I65 6.66lb 52ft/s 388ft/s 5.6G 3,359ft 15.5s 7s
OK Cesaroni J250 6.83lb 58ft/s 595ft/s 8.1G 3,408ft 14.0s 11s
OK Hypertek J120 7.85lb 56ft/s 427ft/s 6.5G 3,409ft 15.3s 8s
OK AeroTech J250 7.00lb 59ft/s 602ft/s 8.9G 3,501ft 14.0s 11s
OK Cesaroni J280 7.10lb 63ft/s 627ft/s 9.2G 3,523ft 14.0s 12s
OK Cesaroni J145 6.85lb 61ft/s 480ft/s 14.9G 3,545ft 14.6s 10s
OK AeroTech J250 6.56lb 72ft/s 602ft/s 10.6G 3,626ft 14.0s 11s
OK Hypertek J270 7.86lb 81ft/s 563ft/s 13.1G 3,656ft 14.2s 11s
OK Cesaroni J1055 6.70lb 137ft/s 784ft/s 37.6G 3,665ft 13.2s 12s
OK AeroTech J315 6.88lb 72ft/s 654ft/s 11.4G 3,767ft 14.1s 12s
OK Hypertek J190 7.85lb 70ft/s 530ft/s 9.9G 3,837ft 15.1s 10s
OK AeroTech J180 6.78lb 69ft/s 578ft/s 9.8G 4,036ft 14.9s 10s
OK Gorilla J365 7.65lb 61ft/s 711ft/s 13.8G 4,050ft 14.7s 12s
OK Cesaroni J240 6.93lb 63ft/s 655ft/s 8.5G 4,052ft 14.9s 12s
OK Cesaroni J430 6.76lb 85ft/s 763ft/s 16.4G 4,085ft 14.2s 12s
OK AeroTech J1299 6.84lb 147ft/s 886ft/s 48.1G 4,111ft 13.7s 13s
OK AeroTech J275 6.91lb 66ft/s 656ft/s 9.9G 4,156ft 14.9s 11s
OK Cesaroni J293 6.85lb 67ft/s 705ft/s 10.7G 4,167ft 14.8s 12s
OK AeroTech J460 6.74lb 90ft/s 776ft/s 17.5G 4,168ft 14.2s 12s
OK Cesaroni J244 7.01lb 60ft/s 677ft/s 7.5G 4,245ft 15.3s 12s
OK Cesaroni J210 6.86lb 64ft/s 604ft/s 9.8G 4,267ft 15.6s 12s
OK AMW J1365 7.47lb 142ft/s 897ft/s 46.8G 4,335ft 14.1s 13s
OK AMW J400 8.05lb 70ft/s 768ft/s 12.5G 4,464ft 15.2s 13s
OK Loki J350 7.78lb 67ft/s 768ft/s 12.2G 4,526ft 15.2s 13s
OK Gorilla J167 7.68lb 65ft/s 560ft/s 9.9G 4,624ft 16.4s 10s
OK AMW J475 8.11lb 76ft/s 824ft/s 16.4G 4,665ft 15.1s 13s
OK AeroTech J1799 7.45lb 165ft/s 1,055ft/s 64.5G 4,789ft 14.3s 14s
OK Cesaroni J360 7.43lb 69ft/s 816ft/s 15.4G 4,794ft 15.5s 13s
OK Cesaroni J380 7.85lb 69ft/s 833ft/s 11.4G 4,824ft 15.6s 13s
OK Gorilla J465 7.61lb 76ft/s 862ft/s 18.5G 4,825ft 15.3s 13s
OK Cesaroni J1520 7.26lb 151ft/s 1,069ft/s 52.4G 4,854ft 14.4s 14s
OK Gorilla J395 7.56lb 71ft/s 835ft/s 12.8G 4,870ft 15.6s 13s
OK AeroTech J450 7.70lb 76ft/s 858ft/s 14.9G 4,927ft 15.5s 13s
OK Gorilla J485 7.62lb 81ft/s 893ft/s 16.2G 4,983ft 15.4s 13s
OK AMW J395 7.80lb 78ft/s 825ft/s 12.7G 5,004ft 15.8s 13s
OK Gorilla J450 8.21lb 70ft/s 854ft/s 15.8G 5,030ft 15.8s 13s
OK Gorilla J535 7.70lb 94ft/s 922ft/s 18.8G 5,042ft 15.3s 13s
OK AMW J440 7.71lb 105ft/s 879ft/s 22.5G 5,064ft 15.3s 13s
OK Loki J820 7.67lb 119ft/s 983ft/s 29.5G 5,067ft 14.9s 13s
OK Loki J525 7.73lb 92ft/s 934ft/s 18.1G 5,085ft 15.4s 13s
OK AMW J325 7.71lb 83ft/s 766ft/s 14.8G 5,101ft 16.0s 13s
OK AMW K1720 7.98lb 160ft/s 1,081ft/s 56.0G 5,151ft 14.9s 14s
OK AeroTech J135 7.52lb 53ft/s 616ft/s 6.6G 5,153ft 17.3s 10s
OK AeroTech J540 7.39lb 94ft/s 954ft/s 19.7G 5,196ft 15.3s 13s
OK AeroTech J401 7.01lb 80ft/s 914ft/s 14.4G 5,243ft 15.6s 13s
OK AMW J745 7.69lb 113ft/s 1,018ft/s 24.7G 5,357ft 15.5s 14s
OK AMW J475 8.29lb 83ft/s 893ft/s 14.9G 5,435ft 16.2s 13s
OK Cesaroni J355 7.59lb 75ft/s 870ft/s 12.0G 5,470ft 16.3s 13s
OK Loki J175 7.76lb 70ft/s 666ft/s 11.2G 5,530ft 17.3s 11s
OK AeroTech J800 7.39lb 117ft/s 1,069ft/s 27.9G 5,547ft 15.4s 13s
OK Loki J300 7.90lb 73ft/s 805ft/s 10.5G 5,599ft 16.9s 13s
OK Cesaroni J760 7.37lb 110ft/s 1,109ft/s 26.4G 5,613ft 15.5s 14s
OK Cesaroni J295 7.47lb 78ft/s 814ft/s 12.2G 5,615ft 16.6s 13s
OK AMW K665 8.83lb 90ft/s 1,011ft/s 20.6G 5,651ft 16.0s 14s
OK AeroTech J415 7.58lb 79ft/s 938ft/s 15.1G 5,687ft 16.2s 13s
OK AeroTech K456 8.27lb 77ft/s 953ft/s 13.1G 5,700ft 16.4s 13s
OK Cesaroni J449 7.47lb 82ft/s 991ft/s 15.9G 5,713ft 16.1s 13s
OK AeroTech K2050 7.85lb 167ft/s 1,288ft/s 62.5G 5,777ft 15.3s 15s
OK Cesaroni K2045 7.84lb 175ft/s 1,326ft/s 65.1G 5,806ft 15.2s 15s
OK Cesaroni K360 7.72lb 72ft/s 932ft/s 10.6G 5,832ft 16.7s 13s
OK Cesaroni J140 7.82lb 50ft/s 606ft/s 5.2G 5,896ft 19.1s 10s
OK Gorilla K222 8.52lb 70ft/s 683ft/s 10.2G 5,932ft 18.0s 11s
OK Gorilla K555 8.48lb 80ft/s 1,034ft/s 16.4G 5,959ft 16.6s 14s
OK AeroTech K400 7.63lb 86ft/s 938ft/s 14.9G 5,962ft 16.7s 13s
OK Gorilla K520 8.18lb 82ft/s 1,023ft/s 15.5G 5,967ft 16.6s 14s
OK Cesaroni K454 8.07lb 80ft/s 986ft/s 14.3G 5,970ft 16.6s 13s
OK Cesaroni K530 8.62lb 80ft/s 1,045ft/s 14.5G 5,974ft 16.5s 14s
OK Gorilla K630 8.44lb 88ft/s 1,062ft/s 20.6G 5,985ft 16.3s 14s
OK Gorilla K533 8.78lb 79ft/s 1,008ft/s 17.4G 6,013ft 16.6s 14s
OK AMW K475 8.29lb 79ft/s 1,005ft/s 14.0G 6,038ft 16.7s 14s
OK KBA K700 8.31lb 102ft/s 1,131ft/s 23.5G 6,044ft 16.2s 14s
OK AeroTech K513 8.63lb 86ft/s 1,052ft/s 16.2G 6,126ft 16.5s 14s
OK AeroTech K695 8.28lb 100ft/s 1,131ft/s 24.2G 6,139ft 16.2s 14s
OK AMW K535 8.44lb 87ft/s 1,024ft/s 16.1G 6,146ft 16.7s 14s
OK AeroTech K535 7.79lb 93ft/s 1,048ft/s 17.5G 6,159ft 16.4s 13s
OK AMW K610 8.89lb 90ft/s 1,058ft/s 17.9G 6,324ft 16.9s 14s
OK AeroTech K185 8.16lb 60ft/s 734ft/s 8.3G 6,337ft 18.4s 11s
OK AMW K455 8.32lb 96ft/s 975ft/s 20.0G 6,360ft 16.9s 14s
OK AeroTech K1100 7.95lb 133ft/s 1,282ft/s 37.0G 6,384ft 16.0s 14s
OK AMW K935 8.32lb 121ft/s 1,227ft/s 28.6G 6,411ft 16.3s 15s
OK AMW K700 9.60lb 88ft/s 1,126ft/s 19.1G 6,491ft 16.9s 15s
OK Loki K690 10.29lb 83ft/s 1,122ft/s 17.9G 6,511ft 17.1s 15s
OK AeroTech K540 7.81lb 100ft/s 1,125ft/s 23.7G 6,558ft 16.4s 13s
OK Cesaroni K940 8.01lb 122ft/s 1,313ft/s 30.1G 6,582ft 16.2s 14s
OK AeroTech K550 8.28lb 95ft/s 1,081ft/s 21.0G 6,618ft 16.8s 13s
OK AMW K855 9.68lb 100ft/s 1,198ft/s 23.6G 6,633ft 16.8s 15s
OK Cesaroni K500 8.25lb 82ft/s 1,093ft/s 15.6G 6,655ft 17.1s 14s
OK Cesaroni K515 8.65lb 83ft/s 1,094ft/s 16.6G 6,783ft 17.2s 14s
OK Cesaroni K630 8.11lb 97ft/s 1,220ft/s 20.9G 6,784ft 16.7s 14s
OK Gorilla K700 8.78lb 94ft/s 1,202ft/s 19.7G 6,808ft 17.2s 15s
OK Cesaroni K400 8.42lb 77ft/s 1,016ft/s 11.8G 6,812ft 17.7s 14s
OK Cesaroni K650 9.39lb 88ft/s 1,206ft/s 16.7G 6,820ft 17.2s 15s
OK Gorilla K763 8.95lb 98ft/s 1,238ft/s 21.5G 6,832ft 17.0s 15s
OK Gorilla K327 9.01lb 80ft/s 863ft/s 16.2G 6,893ft 18.1s 13s
OK Gorilla K805 8.91lb 100ft/s 1,251ft/s 27.2G 6,901ft 16.9s 15s
OK Cesaroni K445 8.08lb 92ft/s 1,054ft/s 17.5G 6,910ft 17.3s 13s
OK AeroTech K805 8.40lb 103ft/s 1,272ft/s 23.1G 6,923ft 16.8s 15s
OK AeroTech K1103 8.22lb 136ft/s 1,407ft/s 43.1G 6,943ft 16.4s 15s
OK Cesaroni K520 8.47lb 87ft/s 1,140ft/s 15.4G 7,005ft 17.4s 14s
OK AeroTech K990 9.65lb 104ft/s 1,296ft/s 24.4G 7,014ft 17.1s 15s
OK AMW K710 8.99lb 104ft/s 1,176ft/s 21.1G 7,055ft 17.3s 15s
OK AMW K670 9.16lb 98ft/s 1,195ft/s 19.6G 7,102ft 17.4s 15s
OK Cesaroni K160 8.25lb 55ft/s 685ft/s 6.3G 7,193ft 20.3s 11s
OK AMW K1250 9.00lb 129ft/s 1,417ft/s 39.4G 7,256ft 16.9s 15s
OK Cesaroni K740 8.24lb 109ft/s 1,325ft/s 23.1G 7,270ft 17.0s 15s
OK Loki K960 8.85lb 138ft/s 1,375ft/s 38.2G 7,315ft 17.0s 15s
OK AMW K580 9.02lb 104ft/s 1,140ft/s 25.9G 7,324ft 17.6s 14s
OK Cesaroni K1200 8.60lb 131ft/s 1,518ft/s 34.9G 7,391ft 16.7s 15s
OK Loki K250 8.95lb 82ft/s 818ft/s 19.1G 7,411ft 19.5s 13s
OK AeroTech K1275 9.38lb 135ft/s 1,460ft/s 36.9G 7,519ft 17.0s 15s
OK Cesaroni K650 8.77lb 101ft/s 1,283ft/s 30.6G 7,550ft 17.4s 14s
OK Cesaroni K635 8.90lb 94ft/s 1,269ft/s 18.7G 7,559ft 17.6s 14s
OK AeroTech K828 9.90lb 113ft/s 1,349ft/s 28.8G 7,569ft 17.4s 15s
OK Cesaroni K675 9.28lb 94ft/s 1,257ft/s 20.9G 7,572ft 17.7s 15s
OK Cesaroni K780 8.75lb 113ft/s 1,419ft/s 24.7G 7,742ft 17.3s 15s
OK Loki K527 9.35lb 92ft/s 1,171ft/s 17.3G 7,771ft 18.3s 14s
OK Cesaroni K490 9.09lb 82ft/s 1,165ft/s 13.6G 7,817ft 18.3s 14s
OK Cesaroni K570 8.71lb 105ft/s 1,235ft/s 22.2G 7,937ft 17.9s 14s
OK Cesaroni K600 9.17lb 95ft/s 1,271ft/s 18.1G 7,980ft 18.0s 15s
OK Cesaroni K1440 9.17lb 147ft/s 1,657ft/s 45.7G 8,028ft 17.1s 15s
OK AeroTech K700 9.49lb 108ft/s 1,314ft/s 24.4G 8,126ft 17.8s 14s
OK Cesaroni K750 9.53lb 101ft/s 1,384ft/s 21.9G 8,189ft 17.9s 15s
OK Cesaroni K820 9.37lb 113ft/s 1,438ft/s 38.7G 8,391ft 17.9s 15s
OK Cesaroni K711 9.85lb 106ft/s 1,341ft/s 33.6G 8,397ft 18.2s 15s
OK AeroTech K480 9.58lb 98ft/s 1,231ft/s 20.4G 8,435ft 18.5s 14s
OK Cesaroni K261 9.26lb 60ft/s 914ft/s 7.8G 8,482ft 20.5s 12s
OK AeroTech K270 9.63lb 66ft/s 886ft/s 9.0G 8,555ft 20.7s 12s
OK AeroTech K375 9.64lb 124ft/s 1,064ft/s 30.3G 8,636ft 19.1s 13s
OK Cesaroni K660 9.30lb 111ft/s 1,367ft/s 25.2G 8,690ft 18.3s 15s
OK Cesaroni K590 9.40lb 138ft/s 1,224ft/s 42.5G 8,877ft 18.6s 14s
OK Cesaroni K260 9.51lb 67ft/s 955ft/s 9.2G 9,320ft 21.1s 12s
warningsD AMW K590 8.79lb 15:1 thrust/weight ratio (no data)
warningsD Gorilla K695 8.30lb 19:1 thrust/weight ratio (no data)
warningsD Gorilla K828 9.05lb 21:1 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 (41ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (46ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (45ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (44ft/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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