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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 122 motors that fit and appear to have enough thrust (670 motors didn't fit, 5 motors failed safety checks). 127 motor had thrust curves available and 268 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:   Formula 75 Cherry RocketryWarehouse
Owner: John Grove
Body Diameter: 3.00in
Dry Weight: 50.0oz
MMT Diameter: 38.0mm
MMT Length: 16.00in
CD: 0.70
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 Contrail G300 69.2oz 141ft/s 160ft/s 41.4G 380ft 4.8s 5s
OK Contrail G130 68.2oz 86ft/s 146ft/s 27.3G 382ft 5.0s 4s
OK Loki G69 58.5oz 62ft/s 166ft/s 5.0G 528ft 6.2s 5s
OK AeroTech G61 56.8oz 55ft/s 163ft/s 4.1G 534ft 6.4s 4s
OK AeroTech G67 57.1oz 60ft/s 173ft/s 4.7G 541ft 6.4s 5s
OK Loki G70 58.5oz 63ft/s 176ft/s 5.2G 591ft 6.6s 5s
OK Loki G80 59.0oz 68ft/s 185ft/s 5.9G 611ft 6.5s 5s
OK AeroTech G339 56.4oz 132ft/s 219ft/s 23.1G 628ft 6.2s 6s
OK Loki G94 58.5oz 73ft/s 198ft/s 7.1G 653ft 6.7s 5s
OK Contrail G123 68.0oz 86ft/s 203ft/s 17.8G 677ft 6.6s 5s
OK Cesaroni G69 56.9oz 55ft/s 193ft/s 4.5G 681ft 7.2s 5s
OK Cesaroni G79 58.0oz 54ft/s 206ft/s 4.9G 694ft 7.2s 6s
OK Contrail G100 68.0oz 80ft/s 200ft/s 8.7G 701ft 6.8s 5s
OK Loki G66 58.8oz 68ft/s 196ft/s 6.1G 734ft 7.3s 5s
OK Cesaroni G185 56.6oz 91ft/s 238ft/s 12.1G 746ft 6.8s 6s
OK AeroTech G69 57.1oz 55ft/s 210ft/s 4.3G 759ft 7.4s 5s
OK Cesaroni G60 57.3oz 56ft/s 208ft/s 4.4G 777ft 7.6s 5s
OK Cesaroni G78 56.9oz 58ft/s 224ft/s 7.2G 829ft 7.7s 6s
OK Contrail H222 68.3oz 120ft/s 242ft/s 34.7G 833ft 7.1s 6s
OK Cesaroni G115 56.9oz 71ft/s 243ft/s 7.3G 845ft 7.5s 6s
OK AeroTech H73 60.9oz 53ft/s 251ft/s 4.2G 1,126ft 9.1s 6s
OK Loki H100 61.8oz 71ft/s 298ft/s 7.5G 1,295ft 9.1s 7s
warningsW AeroTech H283 58.7oz 122ft/s 364ft/s 19.6G 1,384ft 8.8s 8s
OK AeroTech H148 60.9oz 89ft/s 345ft/s 10.5G 1,455ft 9.4s 8s
OK AeroTech H130 58.4oz 103ft/s 340ft/s 15.0G 1,483ft 9.3s 8s
OK AeroTech H669 58.9oz 188ft/s 426ft/s 66.6G 1,572ft 9.1s 9s
OK AeroTech H123 59.7oz 76ft/s 337ft/s 8.0G 1,595ft 9.9s 7s
OK AeroTech H100 59.2oz 71ft/s 342ft/s 6.9G 1,601ft 10.0s 8s
OK Loki H90 61.8oz 74ft/s 329ft/s 7.5G 1,616ft 10.2s 8s
OK Cesaroni H123 60.5oz 71ft/s 375ft/s 7.8G 1,645ft 10.1s 8s
OK Loki H144 61.9oz 102ft/s 371ft/s 13.5G 1,658ft 9.8s 8s
OK Loki H125 62.1oz 90ft/s 358ft/s 10.9G 1,666ft 10.0s 8s
OK Cesaroni H143 62.2oz 73ft/s 386ft/s 8.4G 1,679ft 10.1s 8s
OK AeroTech H219 59.2oz 112ft/s 414ft/s 16.8G 1,687ft 9.6s 9s
OK AeroTech H242 59.3oz 99ft/s 416ft/s 13.4G 1,770ft 10.0s 9s
OK Loki H160 61.8oz 107ft/s 402ft/s 15.8G 1,796ft 10.0s 9s
OK AeroTech H112 63.4oz 62ft/s 351ft/s 5.3G 1,817ft 11.0s 8s
OK Cesaroni H400 60.0oz 135ft/s 473ft/s 25.7G 1,847ft 9.8s 9s
OK Cesaroni H120 60.4oz 74ft/s 403ft/s 7.8G 1,878ft 10.6s 8s
OK Cesaroni H110 61.5oz 67ft/s 397ft/s 6.2G 1,916ft 10.9s 8s
OK Cesaroni H125 60.3oz 72ft/s 420ft/s 7.9G 1,931ft 10.7s 9s
OK Cesaroni H152 60.5oz 84ft/s 443ft/s 11.6G 2,029ft 10.7s 9s
OK AeroTech H178 61.4oz 83ft/s 466ft/s 11.6G 2,056ft 10.7s 9s
OK Cesaroni H100 61.5oz 68ft/s 409ft/s 5.9G 2,058ft 11.3s 9s
OK Cesaroni H225 56.8oz 105ft/s 497ft/s 15.3G 2,061ft 10.5s 9s
OK AeroTech H550 61.4oz 164ft/s 570ft/s 37.2G 2,259ft 10.5s 10s
OK AeroTech H550 61.1oz 165ft/s 577ft/s 37.6G 2,261ft 10.5s 10s
OK AeroTech I218 63.1oz 108ft/s 506ft/s 15.3G 2,272ft 11.0s 9s
warningsW Cesaroni H565 62.8oz 161ft/s 578ft/s 35.8G 2,283ft 10.6s 10s
OK AeroTech H999 61.7oz 223ft/s 599ft/s 92.9G 2,297ft 10.5s 10s
OK AeroTech H45 62.9oz 55ft/s 333ft/s 3.9G 2,304ft 12.8s 7s
OK AeroTech H170 61.6oz 86ft/s 493ft/s 10.9G 2,307ft 11.2s 9s
OK AeroTech I180 63.6oz 122ft/s 477ft/s 19.5G 2,324ft 11.1s 9s
OK AeroTech I161 62.9oz 92ft/s 489ft/s 11.5G 2,390ft 11.4s 9s
OK Cesaroni I180 63.9oz 85ft/s 522ft/s 10.8G 2,421ft 11.5s 10s
OK AeroTech I140 62.6oz 83ft/s 481ft/s 9.3G 2,465ft 11.7s 9s
OK AeroTech I225 67.1oz 91ft/s 536ft/s 13.8G 2,501ft 11.5s 10s
OK AeroTech I245 62.9oz 131ft/s 548ft/s 22.7G 2,502ft 11.2s 10s
OK AeroTech I357 62.1oz 126ft/s 572ft/s 21.0G 2,521ft 11.2s 10s
OK Cesaroni I212 66.8oz 88ft/s 555ft/s 12.6G 2,550ft 11.7s 10s
OK Cesaroni I566 63.6oz 154ft/s 659ft/s 34.3G 2,622ft 11.2s 11s
OK AeroTech I154 67.4oz 74ft/s 485ft/s 8.0G 2,695ft 12.5s 9s
OK Cesaroni I195 64.7oz 95ft/s 584ft/s 12.2G 2,818ft 12.1s 10s
OK Cesaroni I345 63.9oz 120ft/s 658ft/s 21.0G 2,824ft 11.7s 11s
OK Cesaroni I800 66.1oz 181ft/s 729ft/s 48.0G 2,857ft 11.5s 11s
OK AeroTech I285 67.4oz 117ft/s 627ft/s 19.2G 2,857ft 11.9s 10s
OK Cesaroni I170 63.8oz 92ft/s 597ft/s 11.7G 2,901ft 12.3s 10s
OK AeroTech I1299 64.9oz 245ft/s 761ft/s 84.5G 2,906ft 11.4s 11s
OK Cesaroni I175 65.4oz 86ft/s 585ft/s 9.6G 2,916ft 12.4s 10s
OK Cesaroni I236 64.1oz 104ft/s 629ft/s 16.5G 2,941ft 12.1s 10s
OK AeroTech I305 70.5oz 117ft/s 638ft/s 20.1G 2,957ft 12.0s 10s
OK AeroTech I211 66.0oz 108ft/s 608ft/s 16.5G 3,008ft 12.2s 10s
OK Cesaroni I223 67.4oz 92ft/s 634ft/s 12.6G 3,012ft 12.3s 10s
OK AeroTech I195 70.2oz 110ft/s 598ft/s 17.6G 3,020ft 12.3s 10s
OK AeroTech I300 65.6oz 127ft/s 661ft/s 24.6G 3,021ft 12.0s 10s
OK Loki I316 69.0oz 139ft/s 677ft/s 25.3G 3,184ft 12.2s 11s
OK Cesaroni I287 71.3oz 104ft/s 702ft/s 16.3G 3,260ft 12.6s 11s
OK Loki I405 69.2oz 167ft/s 735ft/s 40.9G 3,303ft 12.2s 11s
warningsW Loki I110 70.8oz 77ft/s 544ft/s 12.4G 3,333ft 13.5s 10s
OK Loki I210 69.0oz 117ft/s 643ft/s 22.1G 3,335ft 12.7s 10s
OK Cesaroni I285 67.8oz 113ft/s 731ft/s 17.7G 3,440ft 12.8s 11s
OK Loki I377 69.8oz 149ft/s 744ft/s 33.0G 3,463ft 12.6s 11s
OK Loki I430 69.0oz 136ft/s 800ft/s 26.7G 3,477ft 12.6s 11s
OK Cesaroni I255 68.2oz 107ft/s 724ft/s 15.8G 3,493ft 12.9s 11s
OK KBA I550 75.1oz 142ft/s 942ft/s 33.6G 3,496ft 12.1s 11s
OK AeroTech I327 72.2oz 118ft/s 763ft/s 20.6G 3,519ft 12.8s 11s
OK AeroTech I366 69.6oz 134ft/s 779ft/s 24.3G 3,527ft 12.7s 11s
OK AeroTech I364 73.9oz 115ft/s 756ft/s 19.5G 3,535ft 12.8s 11s
OK AMW I297 70.8oz 112ft/s 756ft/s 18.0G 3,546ft 12.9s 11s
OK Cesaroni I470 67.5oz 149ft/s 843ft/s 28.7G 3,555ft 12.5s 11s
OK KBA I301 75.6oz 107ft/s 814ft/s 18.8G 3,558ft 12.5s 11s
OK Cesaroni I303 67.6oz 115ft/s 772ft/s 21.0G 3,602ft 12.9s 11s
OK AeroTech I280 71.7oz 110ft/s 765ft/s 15.9G 3,648ft 13.1s 11s
OK AeroTech I59 67.2oz 73ft/s 372ft/s 8.0G 3,653ft 15.6s 7s
OK Cesaroni I242 69.4oz 99ft/s 742ft/s 13.8G 3,677ft 13.3s 11s
OK AeroTech I435 68.3oz 164ft/s 848ft/s 38.9G 3,692ft 12.7s 11s
OK Cesaroni I350 77.6oz 116ft/s 797ft/s 17.6G 3,761ft 13.2s 11s
OK AeroTech I284 69.6oz 131ft/s 806ft/s 24.2G 3,789ft 13.0s 11s
OK Cesaroni I125 72.8oz 84ft/s 587ft/s 12.2G 3,868ft 14.4s 10s
OK AeroTech I500 70.3oz 143ft/s 914ft/s 28.5G 3,918ft 13.0s 12s
warningsW Cesaroni I540 71.1oz 155ft/s 947ft/s 31.3G 3,953ft 13.0s 12s
OK AeroTech I600 71.2oz 176ft/s 938ft/s 40.5G 3,958ft 12.9s 12s
OK Loki J396 76.5oz 117ft/s 870ft/s 24.6G 4,022ft 13.4s 12s
OK AeroTech I350 71.7oz 124ft/s 906ft/s 23.6G 4,037ft 13.3s 12s
OK AeroTech J350 73.5oz 163ft/s 893ft/s 39.3G 4,037ft 13.1s 12s
OK AeroTech J420 72.9oz 138ft/s 894ft/s 26.7G 4,040ft 13.3s 12s
OK KBA J740 75.5oz 172ft/s 981ft/s 43.9G 4,047ft 13.1s 12s
OK AeroTech J340 70.4oz 139ft/s 884ft/s 29.7G 4,064ft 13.2s 11s
OK Cesaroni J335 72.1oz 121ft/s 867ft/s 19.6G 4,080ft 13.5s 11s
OK Cesaroni J357 71.2oz 130ft/s 901ft/s 25.0G 4,127ft 13.4s 12s
OK Cesaroni J285 71.0oz 115ft/s 845ft/s 17.5G 4,141ft 13.6s 11s
OK Cesaroni I216 71.2oz 104ft/s 767ft/s 16.1G 4,143ft 13.9s 11s
OK Cesaroni J270 73.1oz 101ft/s 835ft/s 13.7G 4,161ft 13.8s 11s
OK Cesaroni J316 71.4oz 119ft/s 850ft/s 21.0G 4,185ft 13.7s 12s
OK AeroTech J425 72.3oz 123ft/s 962ft/s 21.4G 4,199ft 13.4s 12s
OK Cesaroni J290 73.3oz 114ft/s 863ft/s 18.3G 4,281ft 13.8s 11s
OK AeroTech J500 73.1oz 159ft/s 990ft/s 38.1G 4,331ft 13.4s 12s
OK AeroTech J270 72.6oz 113ft/s 867ft/s 16.7G 4,378ft 13.9s 11s
OK Cesaroni J94 73.3oz 69ft/s 564ft/s 7.0G 4,470ft 16.2s 9s
OK AeroTech J435 72.0oz 157ft/s 1,029ft/s 33.5G 4,579ft 13.7s 12s
OK Loki J712 76.5oz 168ft/s 1,103ft/s 40.4G 4,601ft 13.6s 12s
OK Loki J320 76.5oz 125ft/s 947ft/s 23.9G 4,831ft 14.4s 12s

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 G46 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (42ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (41ft/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 12ft (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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