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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 80 motors that fit and appear to have enough thrust (672 motors didn't fit, 39 motors failed safety checks). 119 motor had thrust curves available and 251 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+
Owner: Mike Zapolski, Sr.
Body Diameter: 3.00in
Dry Weight: 2,926g
MMT Diameter: 38.0mm
MMT Length: 15.00in
CD: 0.65

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
warningsW AeroTech H283 3,173g 70ft/s 183ft/s 9.8G 549ft 6.1s 5s
OK AeroTech H148 3,235g 51ft/s 171ft/s 5.1G 560ft 6.5s 5s
OK AeroTech H130 3,163g 59ft/s 167ft/s 7.4G 578ft 6.4s 5s
OK Loki H125 3,268g 50ft/s 180ft/s 5.4G 683ft 7.2s 5s
OK AeroTech H669 3,178g 108ft/s 219ft/s 34.5G 692ft 6.6s 6s
OK Loki H144 3,262g 57ft/s 190ft/s 6.8G 699ft 7.0s 5s
OK AeroTech H219 3,187g 63ft/s 209ft/s 8.4G 729ft 7.0s 6s
OK AeroTech H242 3,190g 57ft/s 210ft/s 6.6G 767ft 7.3s 6s
OK Loki H160 3,261g 64ft/s 209ft/s 8.0G 801ft 7.4s 6s
OK Cesaroni H400 3,209g 79ft/s 243ft/s 13.1G 866ft 7.5s 7s
OK Cesaroni H152 3,224g 48ft/s 225ft/s 5.7G 918ft 8.2s 6s
OK Cesaroni H225 3,119g 60ft/s 250ft/s 7.4G 978ft 8.1s 7s
OK AeroTech H170 3,256g 50ft/s 258ft/s 5.5G 1,150ft 9.1s 7s
OK AeroTech I218 3,298g 62ft/s 269ft/s 7.8G 1,168ft 8.9s 7s
OK AeroTech I180 3,311g 73ft/s 260ft/s 10.2G 1,213ft 9.0s 7s
OK AeroTech I161 3,292g 53ft/s 261ft/s 5.8G 1,223ft 9.3s 7s
OK AeroTech H550 3,249g 100ft/s 301ft/s 19.4G 1,229ft 8.7s 8s
OK AeroTech H550 3,242g 100ft/s 303ft/s 19.5G 1,240ft 8.7s 8s
warningsW Cesaroni H565 3,288g 94ft/s 306ft/s 19.4G 1,253ft 8.8s 8s
OK Cesaroni I180 3,320g 48ft/s 277ft/s 5.7G 1,257ft 9.5s 7s
OK AeroTech H999 3,257g 132ft/s 317ft/s 49.3G 1,289ft 8.8s 8s
OK AeroTech I225 3,412g 55ft/s 294ft/s 7.4G 1,377ft 9.7s 8s
OK Cesaroni I212 3,401g 52ft/s 301ft/s 6.8G 1,400ft 9.8s 8s
OK AeroTech I245 3,291g 75ft/s 301ft/s 11.9G 1,405ft 9.5s 8s
OK AeroTech I357 3,269g 73ft/s 309ft/s 10.8G 1,420ft 9.5s 8s
OK Cesaroni I566 3,310g 92ft/s 352ft/s 18.7G 1,575ft 9.8s 9s
OK Cesaroni I195 3,343g 56ft/s 321ft/s 6.2G 1,618ft 10.6s 9s
OK Cesaroni I175 3,363g 49ft/s 323ft/s 5.0G 1,685ft 10.9s 8s
OK Cesaroni I170 3,318g 53ft/s 328ft/s 6.0G 1,692ft 10.8s 8s
OK Cesaroni I345 3,321g 72ft/s 358ft/s 11.0G 1,723ft 10.4s 9s
OK AeroTech I285 3,418g 70ft/s 352ft/s 10.3G 1,749ft 10.6s 9s
OK Cesaroni I236 3,326g 60ft/s 349ft/s 8.5G 1,786ft 10.9s 9s
OK Cesaroni I800 3,383g 110ft/s 396ft/s 26.8G 1,855ft 10.4s 10s
OK Cesaroni I223 3,420g 55ft/s 356ft/s 6.8G 1,856ft 11.1s 9s
OK AeroTech I211 3,381g 63ft/s 345ft/s 8.7G 1,861ft 11.0s 9s
OK AeroTech I195 3,498g 67ft/s 347ft/s 9.6G 1,886ft 11.1s 9s
OK AeroTech I305 3,507g 70ft/s 367ft/s 11.0G 1,904ft 10.9s 9s
OK AeroTech I300 3,367g 76ft/s 373ft/s 13.1G 1,931ft 11.0s 9s
OK AeroTech I1299 3,348g 147ft/s 413ft/s 45.5G 1,941ft 10.5s 10s
OK Loki I316 3,466g 85ft/s 395ft/s 13.8G 2,128ft 11.4s 10s
OK Cesaroni I287 3,531g 62ft/s 405ft/s 9.2G 2,184ft 11.8s 10s
OK Loki I210 3,466g 73ft/s 381ft/s 12.0G 2,213ft 11.8s 10s
OK Loki I405 3,469g 104ft/s 430ft/s 22.6G 2,319ft 11.7s 11s
OK Cesaroni I285 3,432g 65ft/s 423ft/s 9.5G 2,371ft 12.2s 10s
OK Cesaroni I255 3,442g 64ft/s 422ft/s 8.4G 2,401ft 12.3s 10s
OK Loki I377 3,486g 92ft/s 441ft/s 18.2G 2,465ft 12.1s 11s
OK Loki I430 3,466g 82ft/s 459ft/s 14.7G 2,472ft 12.1s 11s
OK AMW I297 3,517g 69ft/s 444ft/s 9.8G 2,526ft 12.5s 11s
OK Cesaroni I125 3,573g 50ft/s 361ft/s 6.6G 2,527ft 13.5s 9s
OK AeroTech I327 3,554g 72ft/s 449ft/s 11.4G 2,528ft 12.4s 11s
OK AeroTech I366 3,481g 82ft/s 457ft/s 13.3G 2,551ft 12.3s 11s
OK AeroTech I364 3,604g 70ft/s 450ft/s 11.0G 2,557ft 12.5s 11s
OK Cesaroni I303 3,426g 70ft/s 450ft/s 11.3G 2,585ft 12.6s 11s
OK Cesaroni I242 3,476g 59ft/s 439ft/s 7.4G 2,591ft 12.9s 10s
OK Cesaroni I470 3,421g 85ft/s 482ft/s 15.6G 2,620ft 12.3s 11s
OK AeroTech I280 3,542g 65ft/s 453ft/s 8.7G 2,624ft 12.8s 11s
OK Cesaroni I350 3,708g 72ft/s 481ft/s 10.1G 2,794ft 13.0s 11s
OK AeroTech I435 3,444g 100ft/s 498ft/s 21.4G 2,818ft 12.7s 11s
OK KBA I301 3,651g 66ft/s 486ft/s 10.5G 2,825ft 13.0s 11s
OK AeroTech I284 3,481g 79ft/s 484ft/s 13.3G 2,870ft 13.0s 11s
OK KBA I550 3,637g 90ft/s 537ft/s 18.9G 2,905ft 12.8s 12s
OK Cesaroni I216 3,527g 61ft/s 474ft/s 8.8G 3,104ft 13.9s 11s
OK AeroTech I500 3,502g 89ft/s 538ft/s 15.8G 3,109ft 13.3s 12s
warningsW Cesaroni I540 3,524g 91ft/s 557ft/s 17.5G 3,182ft 13.4s 12s
OK Cesaroni J335 3,553g 74ft/s 527ft/s 10.8G 3,199ft 13.7s 12s
OK Cesaroni J270 3,580g 62ft/s 512ft/s 7.7G 3,202ft 14.0s 12s
OK AeroTech I600 3,528g 105ft/s 557ft/s 22.7G 3,204ft 13.4s 12s
OK AeroTech I350 3,542g 76ft/s 544ft/s 13.3G 3,212ft 13.7s 12s
OK AeroTech J420 3,575g 84ft/s 542ft/s 14.9G 3,214ft 13.6s 12s
OK Cesaroni J285 3,521g 69ft/s 516ft/s 9.8G 3,222ft 13.9s 12s
OK Cesaroni J316 3,533g 72ft/s 520ft/s 11.6G 3,241ft 13.9s 12s
OK AeroTech J350 3,591g 98ft/s 545ft/s 22.4G 3,261ft 13.5s 12s
OK AeroTech J340 3,503g 81ft/s 537ft/s 16.5G 3,267ft 13.7s 12s
OK KBA J740 3,650g 111ft/s 580ft/s 26.4G 3,279ft 13.4s 13s
OK Cesaroni J357 3,527g 79ft/s 546ft/s 13.9G 3,299ft 13.8s 12s
OK Cesaroni J290 3,585g 69ft/s 536ft/s 10.2G 3,407ft 14.3s 12s
OK AeroTech J425 3,557g 75ft/s 576ft/s 12.2G 3,418ft 14.0s 12s
OK AeroTech J270 3,568g 67ft/s 542ft/s 9.2G 3,524ft 14.5s 12s
OK AeroTech J500 3,580g 102ft/s 609ft/s 21.5G 3,678ft 14.2s 13s
OK AeroTech J435 3,550g 93ft/s 639ft/s 18.8G 3,989ft 14.8s 13s

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
failedA AeroTech G339 rocket doesn't reach a safe altitude (193ft)
failedG AeroTech G67 speed at end of launch guide too slow (31ft/s)
failedG Loki G69 speed at end of launch guide too slow (32ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (29ft/s)
failedG Loki G70 speed at end of launch guide too slow (34ft/s)
failedG Loki G94 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (28ft/s)
failedG Loki G80 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (21ft/s)
failedA Cesaroni G185 rocket doesn't reach a safe altitude (225ft)
failedG Cesaroni G79 speed at end of launch guide too slow (29ft/s)
failedG Loki G66 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (29ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (20ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (28ft/s)
failedG Loki H100 speed at end of launch guide too slow (40ft/s)
failedG AeroTech H123 speed at end of launch guide too slow (43ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (39ft/s)
failedG Loki H90 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (42ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (36ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (29ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (48ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (43ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (21ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (23ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (43ft/s)
failedG Loki I110 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (40ft/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.)

A The minimum altitude check is used to ensure that the rocket flies high enough to ensure time for a safe recovery. In addition, many barometric altimeters require a minimum altitude to detect lift-off. (The minimum altitude is 10m or 33ft for an A motor and doubles for each impulse class).

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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