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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 105 motors that fit and appear to have enough thrust (683 motors didn't fit, 3 motors failed safety checks). 108 motor had thrust curves available and 233 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:   Loc 3 inch Iris 38mm
Owner: Kenneth B Weaver
Body Diameter: 3.00in
Dry Weight: 24.0oz
MMT Diameter: 38.0mm
MMT Length: 14.25in
CD: 0.75

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 Loki G69 32.5oz 66ft/s 307ft/s 9.9G 1,066ft 7.8s 6s
OK AeroTech G67 31.1oz 63ft/s 326ft/s 9.4G 1,095ft 7.9s 6s
OK AeroTech G61 30.8oz 61ft/s 309ft/s 8.3G 1,098ft 8.0s 6s
OK AeroTech G339 30.4oz 142ft/s 409ft/s 43.7G 1,103ft 7.3s 7s
OK Loki G70 32.5oz 66ft/s 321ft/s 10.2G 1,148ft 8.1s 6s
OK Loki G80 33.0oz 72ft/s 333ft/s 11.2G 1,153ft 7.9s 6s
OK Loki G94 32.5oz 77ft/s 355ft/s 13.5G 1,190ft 8.0s 7s
OK Cesaroni G185 30.6oz 94ft/s 442ft/s 22.7G 1,250ft 7.8s 7s
OK Cesaroni G46 30.9oz 50ft/s 306ft/s 9.2G 1,254ft 8.8s 6s
OK Cesaroni G79 32.0oz 56ft/s 379ft/s 8.9G 1,272ft 8.4s 7s
OK Cesaroni G69 30.9oz 60ft/s 355ft/s 9.0G 1,282ft 8.5s 7s
OK Loki G66 32.8oz 70ft/s 346ft/s 11.7G 1,314ft 8.5s 6s
OK AeroTech G69 31.1oz 61ft/s 384ft/s 8.2G 1,355ft 8.6s 7s
OK Cesaroni G58 31.5oz 50ft/s 353ft/s 9.2G 1,368ft 8.9s 6s
OK Cesaroni G60 31.3oz 61ft/s 374ft/s 8.9G 1,388ft 8.7s 7s
OK Cesaroni G115 30.9oz 76ft/s 439ft/s 14.3G 1,390ft 8.3s 7s
OK Cesaroni G78 30.9oz 60ft/s 401ft/s 14.2G 1,423ft 8.7s 7s
OK AeroTech H73 34.9oz 56ft/s 416ft/s 7.6G 1,745ft 9.8s 7s
warningsW AeroTech H283 32.7oz 124ft/s 625ft/s 35.6G 1,764ft 8.7s 8s
OK Loki H100 35.8oz 75ft/s 484ft/s 12.8G 1,809ft 9.3s 7s
OK AeroTech H669 32.9oz 193ft/s 752ft/s 120.3G 1,853ft 8.6s 8s
OK AeroTech H130 32.4oz 106ft/s 544ft/s 27.9G 1,887ft 9.0s 7s
OK AeroTech H148 34.9oz 88ft/s 556ft/s 18.9G 1,899ft 9.3s 8s
OK AeroTech H219 33.2oz 112ft/s 680ft/s 30.9G 1,981ft 9.0s 8s
OK Loki H144 35.9oz 100ft/s 579ft/s 24.0G 2,054ft 9.4s 8s
OK AeroTech H123 33.7oz 77ft/s 528ft/s 14.8G 2,057ft 9.7s 7s
OK AeroTech H100 33.2oz 72ft/s 532ft/s 12.6G 2,070ft 9.7s 7s
OK Cesaroni H400 34.0oz 129ft/s 806ft/s 45.3G 2,073ft 9.0s 8s
OK Cesaroni H123 34.5oz 71ft/s 601ft/s 14.1G 2,080ft 9.7s 8s
OK Cesaroni H143 36.2oz 71ft/s 614ft/s 14.2G 2,086ft 9.7s 8s
OK AeroTech H242 33.3oz 101ft/s 669ft/s 24.5G 2,094ft 9.3s 8s
OK Loki H125 36.1oz 92ft/s 551ft/s 19.5G 2,101ft 9.8s 8s
OK Loki H90 35.8oz 77ft/s 503ft/s 13.7G 2,127ft 10.0s 7s
OK Loki H160 35.8oz 112ft/s 623ft/s 28.0G 2,143ft 9.5s 8s
OK Cesaroni H225 30.8oz 112ft/s 809ft/s 29.1G 2,224ft 9.2s 8s
OK Cesaroni H120 34.4oz 75ft/s 618ft/s 14.4G 2,269ft 10.0s 8s
OK AeroTech H550 35.1oz 171ft/s 955ft/s 66.2G 2,284ft 9.1s 9s
OK Cesaroni H125 34.3oz 71ft/s 650ft/s 14.1G 2,300ft 10.0s 8s
OK AeroTech H178 35.4oz 85ft/s 725ft/s 19.0G 2,311ft 9.8s 8s
OK AeroTech H999 35.7oz 226ft/s 1,016ft/s 161.7G 2,313ft 9.2s 9s
OK AeroTech H112 37.4oz 63ft/s 520ft/s 9.6G 2,319ft 10.6s 7s
OK AeroTech H550 35.4oz 169ft/s 938ft/s 65.2G 2,323ft 9.3s 9s
OK Cesaroni H152 34.5oz 87ft/s 680ft/s 21.1G 2,334ft 9.9s 8s
OK Cesaroni H110 35.5oz 66ft/s 603ft/s 11.0G 2,339ft 10.3s 8s
warningsW Cesaroni H565 36.8oz 159ft/s 955ft/s 60.3G 2,345ft 9.3s 9s
OK AeroTech I218 37.1oz 107ft/s 760ft/s 26.8G 2,458ft 9.9s 8s
OK Cesaroni H100 35.5oz 71ft/s 599ft/s 11.0G 2,476ft 10.6s 8s
OK AeroTech H170 35.6oz 93ft/s 727ft/s 19.2G 2,515ft 10.0s 8s
OK AeroTech I180 37.6oz 126ft/s 692ft/s 33.8G 2,526ft 10.0s 8s
OK Cesaroni I566 37.6oz 152ft/s 1,063ft/s 57.6G 2,570ft 9.6s 9s
OK AeroTech I357 36.1oz 126ft/s 861ft/s 36.9G 2,574ft 9.7s 8s
OK AeroTech I245 36.9oz 130ft/s 798ft/s 39.0G 2,577ft 9.8s 8s
OK AeroTech I161 36.9oz 91ft/s 707ft/s 20.2G 2,596ft 10.2s 8s
OK Cesaroni I180 37.9oz 80ft/s 777ft/s 17.7G 2,605ft 10.3s 8s
OK AeroTech I225 41.1oz 89ft/s 779ft/s 22.1G 2,633ft 10.2s 8s
OK Cesaroni I212 40.8oz 87ft/s 809ft/s 19.6G 2,682ft 10.4s 9s
OK AeroTech I1299 38.9oz 237ft/s 1,243ft/s 140.5G 2,696ft 9.6s 9s
OK AeroTech I140 36.6oz 83ft/s 672ft/s 16.4G 2,700ft 10.5s 8s
OK Cesaroni I800 40.1oz 169ft/s 1,169ft/s 76.5G 2,709ft 9.7s 9s
OK Cesaroni I345 37.9oz 120ft/s 986ft/s 36.0G 2,788ft 10.0s 9s
OK AeroTech I285 41.4oz 109ft/s 899ft/s 31.9G 2,869ft 10.4s 9s
OK AeroTech I305 44.5oz 113ft/s 901ft/s 32.1G 2,903ft 10.3s 9s
OK Cesaroni I195 38.7oz 92ft/s 819ft/s 21.0G 2,907ft 10.6s 9s
OK AeroTech H45 36.9oz 57ft/s 476ft/s 7.3G 2,925ft 12.4s 6s
OK Cesaroni I236 38.1oz 102ft/s 895ft/s 28.4G 2,937ft 10.4s 9s
OK AeroTech I300 39.6oz 132ft/s 938ft/s 41.4G 2,955ft 10.3s 9s
OK Cesaroni I170 37.8oz 90ft/s 842ft/s 20.4G 2,976ft 10.7s 8s
OK AeroTech I154 41.4oz 73ft/s 653ft/s 13.6G 2,978ft 11.4s 8s
OK AeroTech I211 40.0oz 104ft/s 833ft/s 27.8G 3,012ft 10.5s 8s
OK Cesaroni I175 39.4oz 86ft/s 811ft/s 16.3G 3,013ft 10.8s 8s
OK Cesaroni I223 41.4oz 93ft/s 890ft/s 21.1G 3,015ft 10.7s 9s
OK AeroTech I195 44.2oz 106ft/s 816ft/s 28.5G 3,054ft 10.8s 9s
OK Loki I316 43.0oz 135ft/s 942ft/s 40.7G 3,100ft 10.5s 9s
OK Loki I405 43.2oz 158ft/s 1,037ft/s 66.3G 3,119ft 10.4s 9s
OK Cesaroni I287 45.3oz 98ft/s 972ft/s 24.6G 3,163ft 10.8s 9s
OK Cesaroni I470 41.5oz 145ft/s 1,204ft/s 47.4G 3,248ft 10.4s 9s
OK Loki I430 43.0oz 136ft/s 1,139ft/s 43.5G 3,270ft 10.6s 9s
OK Cesaroni I285 41.8oz 112ft/s 995ft/s 29.5G 3,280ft 10.8s 9s
OK Loki I377 43.8oz 150ft/s 1,018ft/s 53.3G 3,282ft 10.7s 9s
OK AeroTech I366 43.6oz 130ft/s 1,058ft/s 39.6G 3,287ft 10.6s 9s
OK Loki I210 43.0oz 124ft/s 868ft/s 36.0G 3,304ft 11.0s 9s
OK AeroTech I327 46.2oz 122ft/s 1,052ft/s 32.8G 3,314ft 10.8s 9s
OK AeroTech I364 47.9oz 108ft/s 1,019ft/s 29.7G 3,324ft 10.8s 9s
OK AeroTech I435 42.3oz 164ft/s 1,176ft/s 63.5G 3,344ft 10.4s 9s
OK Cesaroni I255 42.2oz 105ft/s 970ft/s 25.8G 3,355ft 10.9s 9s
OK AMW I297 44.8oz 113ft/s 1,030ft/s 29.0G 3,359ft 10.9s 9s
OK Cesaroni I303 41.6oz 114ft/s 1,049ft/s 34.8G 3,379ft 10.8s 9s
OK AeroTech I280 45.7oz 105ft/s 1,024ft/s 25.6G 3,447ft 11.0s 9s
OK AeroTech I284 43.6oz 127ft/s 1,064ft/s 38.6G 3,491ft 10.8s 9s
OK AeroTech I500 44.3oz 134ft/s 1,274ft/s 45.9G 3,501ft 10.6s 9s
OK AeroTech I600 45.2oz 164ft/s 1,296ft/s 64.6G 3,504ft 10.6s 9s
warningsW Loki I110 44.8oz 78ft/s 714ft/s 20.2G 3,510ft 12.0s 8s
OK Cesaroni I242 43.4oz 102ft/s 971ft/s 22.7G 3,523ft 11.2s 9s
OK Cesaroni I350 51.6oz 111ft/s 1,067ft/s 27.1G 3,555ft 11.3s 10s
OK AeroTech J350 47.5oz 158ft/s 1,183ft/s 61.6G 3,632ft 10.8s 9s
OK AeroTech I350 45.7oz 122ft/s 1,199ft/s 36.7G 3,638ft 10.9s 9s
OK AeroTech J420 46.9oz 129ft/s 1,179ft/s 42.1G 3,660ft 11.0s 9s
OK AeroTech J340 44.4oz 139ft/s 1,155ft/s 47.8G 3,662ft 10.8s 9s
OK Cesaroni J357 45.2oz 122ft/s 1,181ft/s 40.0G 3,734ft 11.0s 9s
OK AeroTech J425 46.3oz 117ft/s 1,278ft/s 32.9G 3,752ft 11.0s 9s
OK AeroTech J500 47.1oz 150ft/s 1,294ft/s 59.8G 3,808ft 10.9s 10s
OK Cesaroni J285 45.0oz 108ft/s 1,092ft/s 27.8G 3,833ft 11.4s 9s
OK AeroTech J435 46.0oz 156ft/s 1,332ft/s 53.1G 4,013ft 11.1s 9s
OK AeroTech J270 46.6oz 107ft/s 1,103ft/s 26.6G 4,020ft 11.5s 9s
OK AeroTech I59 41.2oz 74ft/s 545ft/s 13.3G 4,212ft 14.8s 6s

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 Cesaroni G50 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (46ft/s)

G These simulations were run with a launch guide length of 7ft (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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