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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 121 motors that fit and appear to have enough thrust (673 motors didn't fit, 17 motors failed safety checks). 138 motor had thrust curves available and 285 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:   Phoenix 4.0 II
Owner: David Abmayr
Body Diameter: 4.00in
Dry Weight: 64.0oz
MMT Diameter: 38.0mm
MMT Length: 18.00in
CD: 0.67

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 G130 82.2oz 65ft/s 117ft/s 22.4G 258ft 4.2s 3s
OK Contrail G300 83.2oz 111ft/s 132ft/s 34.2G 261ft 4.0s 4s
OK Contrail G234 83.2oz 104ft/s 147ft/s 22.5G 344ft 4.7s 4s
OK Loki G80 73.0oz 48ft/s 141ft/s 4.5G 391ft 5.4s 4s
OK AeroTech G339 70.4oz 96ft/s 173ft/s 18.2G 408ft 5.0s 5s
OK Loki G94 72.5oz 52ft/s 151ft/s 5.5G 420ft 5.5s 4s
OK Contrail G123 82.0oz 63ft/s 162ft/s 14.6G 458ft 5.5s 4s
OK Loki G66 72.8oz 48ft/s 147ft/s 4.7G 469ft 6.0s 4s
OK Contrail G100 82.0oz 59ft/s 158ft/s 7.0G 473ft 5.7s 4s
OK Cesaroni G185 70.6oz 65ft/s 186ft/s 9.5G 483ft 5.6s 5s
OK Cesaroni G115 70.9oz 52ft/s 187ft/s 5.7G 544ft 6.2s 5s
OK Contrail H222 82.3oz 90ft/s 197ft/s 28.6G 572ft 5.9s 5s
OK Loki H100 75.8oz 52ft/s 231ft/s 5.9G 865ft 7.6s 6s
warningsW AeroTech H283 72.7oz 86ft/s 287ft/s 15.5G 930ft 7.3s 7s
OK AeroTech H148 74.9oz 65ft/s 269ft/s 8.3G 978ft 7.8s 6s
OK AeroTech H130 72.4oz 78ft/s 263ft/s 11.9G 996ft 7.8s 6s
OK AeroTech H669 72.9oz 135ft/s 339ft/s 53.6G 1,066ft 7.6s 7s
OK AeroTech H123 73.7oz 55ft/s 259ft/s 6.3G 1,068ft 8.4s 6s
OK AeroTech H100 73.2oz 50ft/s 262ft/s 5.3G 1,068ft 8.5s 6s
OK Loki H90 75.8oz 54ft/s 253ft/s 6.0G 1,086ft 8.6s 6s
OK Cesaroni H123 74.5oz 50ft/s 291ft/s 6.1G 1,105ft 8.5s 7s
OK Loki H144 75.9oz 72ft/s 291ft/s 10.8G 1,128ft 8.2s 7s
OK Loki H125 76.1oz 64ft/s 279ft/s 8.7G 1,130ft 8.4s 6s
OK Cesaroni H143 76.2oz 53ft/s 301ft/s 6.6G 1,134ft 8.5s 7s
OK AeroTech H219 73.2oz 81ft/s 323ft/s 13.4G 1,141ft 8.1s 7s
OK AeroTech H242 73.3oz 72ft/s 326ft/s 10.6G 1,201ft 8.4s 7s
OK Loki H160 75.8oz 78ft/s 316ft/s 12.7G 1,228ft 8.4s 7s
OK Cesaroni H400 74.0oz 96ft/s 376ft/s 20.5G 1,260ft 8.3s 8s
OK Cesaroni H120 74.4oz 54ft/s 312ft/s 6.2G 1,270ft 9.0s 7s
OK Cesaroni H110 75.5oz 48ft/s 306ft/s 4.8G 1,296ft 9.3s 7s
OK Cesaroni H125 74.3oz 53ft/s 326ft/s 6.2G 1,309ft 9.1s 7s
OK Cesaroni H152 74.5oz 62ft/s 345ft/s 9.3G 1,384ft 9.1s 7s
OK Cesaroni H100 75.5oz 48ft/s 313ft/s 4.6G 1,395ft 9.7s 7s
OK Cesaroni H225 70.8oz 75ft/s 387ft/s 12.1G 1,404ft 8.8s 8s
OK AeroTech H178 75.4oz 59ft/s 364ft/s 9.1G 1,406ft 9.1s 7s
OK AeroTech H550 75.4oz 121ft/s 455ft/s 30.0G 1,561ft 8.9s 8s
OK AeroTech H550 75.1oz 122ft/s 460ft/s 30.2G 1,563ft 8.9s 8s
OK AeroTech I218 77.1oz 79ft/s 399ft/s 12.3G 1,570ft 9.3s 8s
warningsW Cesaroni H565 76.8oz 120ft/s 463ft/s 28.3G 1,580ft 9.0s 8s
OK AeroTech H999 75.7oz 165ft/s 481ft/s 75.5G 1,589ft 8.8s 8s
OK AeroTech H170 75.6oz 64ft/s 385ft/s 8.6G 1,590ft 9.6s 7s
OK AeroTech I180 77.6oz 89ft/s 376ft/s 15.8G 1,614ft 9.4s 7s
OK AeroTech I161 76.9oz 66ft/s 382ft/s 9.2G 1,654ft 9.7s 7s
OK AeroTech I175 76.3oz 73ft/s 385ft/s 10.9G 1,667ft 9.8s 8s
OK Cesaroni I180 77.9oz 60ft/s 411ft/s 8.5G 1,676ft 9.8s 8s
OK AeroTech I140 76.6oz 59ft/s 373ft/s 7.4G 1,702ft 10.0s 8s
OK AeroTech I245 76.9oz 94ft/s 433ft/s 18.3G 1,741ft 9.5s 8s
OK AeroTech I225 81.1oz 68ft/s 425ft/s 11.1G 1,744ft 9.8s 8s
OK AeroTech I357 76.1oz 91ft/s 453ft/s 16.9G 1,752ft 9.5s 8s
OK Cesaroni I212 80.8oz 65ft/s 439ft/s 10.0G 1,775ft 10.0s 8s
OK Cesaroni I566 77.6oz 114ft/s 528ft/s 27.6G 1,825ft 9.4s 9s
OK AeroTech I154 81.4oz 54ft/s 377ft/s 6.4G 1,877ft 10.8s 7s
OK Cesaroni I195 78.7oz 67ft/s 459ft/s 9.8G 1,966ft 10.4s 8s
OK Cesaroni I345 77.9oz 92ft/s 523ft/s 17.0G 1,972ft 9.9s 9s
OK Cesaroni I800 80.1oz 136ft/s 589ft/s 38.1G 1,999ft 9.7s 9s
OK AeroTech I285 81.4oz 85ft/s 500ft/s 15.7G 2,004ft 10.1s 9s
OK Cesaroni I170 77.8oz 65ft/s 469ft/s 9.4G 2,025ft 10.5s 8s
OK AeroTech I1299 78.9oz 179ft/s 616ft/s 68.4G 2,033ft 9.6s 9s
OK Cesaroni I175 79.4oz 62ft/s 459ft/s 7.6G 2,039ft 10.6s 8s
OK Cesaroni I236 78.1oz 77ft/s 496ft/s 13.3G 2,058ft 10.4s 9s
OK AeroTech I305 84.5oz 87ft/s 512ft/s 16.4G 2,089ft 10.2s 9s
OK Cesaroni I223 81.4oz 69ft/s 502ft/s 10.2G 2,116ft 10.6s 9s
OK AeroTech I211 80.0oz 79ft/s 480ft/s 13.4G 2,116ft 10.5s 8s
OK AeroTech I300 79.6oz 93ft/s 526ft/s 20.1G 2,124ft 10.2s 9s
OK AeroTech I195 84.2oz 81ft/s 476ft/s 14.4G 2,132ft 10.6s 8s
OK Loki I316 83.0oz 101ft/s 542ft/s 20.7G 2,247ft 10.4s 9s
OK Cesaroni I287 85.3oz 76ft/s 562ft/s 13.1G 2,305ft 10.8s 9s
OK Loki I405 83.2oz 128ft/s 591ft/s 33.8G 2,334ft 10.4s 9s
warningsW Loki I110 84.8oz 57ft/s 427ft/s 10.2G 2,355ft 11.7s 8s
OK Loki I210 83.0oz 92ft/s 511ft/s 18.2G 2,359ft 10.8s 9s
OK Cesaroni I285 81.8oz 84ft/s 580ft/s 14.5G 2,431ft 11.0s 9s
OK Loki I377 83.8oz 115ft/s 597ft/s 27.3G 2,451ft 10.7s 9s
OK Loki I430 83.0oz 100ft/s 643ft/s 22.1G 2,454ft 10.7s 10s
OK Cesaroni I255 82.2oz 79ft/s 574ft/s 12.8G 2,470ft 11.1s 9s
OK AeroTech I366 83.6oz 101ft/s 622ft/s 20.0G 2,500ft 10.8s 9s
OK AeroTech I327 86.2oz 88ft/s 613ft/s 17.0G 2,500ft 10.9s 9s
OK Cesaroni I470 81.5oz 107ft/s 676ft/s 23.6G 2,512ft 10.7s 10s
OK AeroTech I364 87.9oz 85ft/s 607ft/s 15.9G 2,514ft 10.9s 9s
OK AMW I297 84.8oz 83ft/s 605ft/s 14.8G 2,517ft 11.0s 9s
OK AeroTech I59 81.2oz 55ft/s 289ft/s 6.4G 2,543ft 13.8s 5s
OK Cesaroni I303 81.6oz 84ft/s 614ft/s 17.2G 2,552ft 11.0s 9s
OK AeroTech I280 85.7oz 78ft/s 610ft/s 13.1G 2,592ft 11.2s 9s
OK Cesaroni I242 83.4oz 75ft/s 587ft/s 11.3G 2,609ft 11.4s 9s
OK AeroTech I435 82.3oz 124ft/s 680ft/s 32.1G 2,620ft 10.8s 9s
OK KBA I550 89.1oz 109ft/s 700ft/s 24.7G 2,644ft 11.0s 10s
OK Cesaroni I350 91.6oz 88ft/s 644ft/s 14.7G 2,680ft 11.3s 10s
OK KBA I301 89.6oz 80ft/s 612ft/s 15.2G 2,681ft 11.4s 9s
OK AeroTech I284 83.6oz 97ft/s 642ft/s 19.8G 2,698ft 11.1s 9s
OK Cesaroni I125 86.8oz 65ft/s 459ft/s 10.1G 2,754ft 12.5s 8s
OK AeroTech I500 84.3oz 104ft/s 735ft/s 23.6G 2,786ft 11.1s 10s
warningsW Cesaroni I540 85.1oz 112ft/s 763ft/s 25.7G 2,810ft 11.1s 10s
OK AeroTech I600 85.2oz 126ft/s 757ft/s 33.6G 2,816ft 11.0s 10s
OK KBA J520 89.5oz 103ft/s 736ft/s 27.6G 2,840ft 11.3s 10s
OK Loki J396 90.5oz 88ft/s 703ft/s 20.1G 2,864ft 11.4s 10s
OK KBA J740 89.5oz 134ft/s 804ft/s 36.3G 2,868ft 11.1s 10s
OK AeroTech I350 85.7oz 97ft/s 725ft/s 19.3G 2,876ft 11.4s 10s
OK AeroTech J420 86.9oz 102ft/s 717ft/s 22.1G 2,877ft 11.3s 10s
OK AeroTech J350 87.5oz 119ft/s 719ft/s 32.9G 2,884ft 11.2s 10s
OK Cesaroni J381 88.3oz 97ft/s 709ft/s 19.6G 2,901ft 11.4s 10s
OK AeroTech J340 84.4oz 103ft/s 705ft/s 24.6G 2,909ft 11.3s 9s
OK Cesaroni J335 86.1oz 90ft/s 693ft/s 16.2G 2,911ft 11.5s 10s
OK Cesaroni J357 85.2oz 97ft/s 719ft/s 20.7G 2,944ft 11.5s 10s
OK Cesaroni J285 85.0oz 86ft/s 672ft/s 14.4G 2,952ft 11.7s 9s
OK Cesaroni I216 85.2oz 75ft/s 607ft/s 13.3G 2,957ft 12.0s 9s
OK Cesaroni J270 87.1oz 76ft/s 662ft/s 11.2G 2,972ft 11.9s 9s
OK Cesaroni J316 85.4oz 88ft/s 679ft/s 17.4G 2,978ft 11.7s 10s
OK AeroTech J425 86.3oz 91ft/s 769ft/s 17.5G 2,994ft 11.5s 10s
OK Cesaroni J400 88.8oz 94ft/s 745ft/s 18.1G 3,043ft 11.6s 10s
OK Loki J474 90.7oz 133ft/s 719ft/s 46.5G 3,048ft 11.5s 10s
OK Cesaroni J290 87.3oz 85ft/s 687ft/s 15.2G 3,064ft 11.9s 10s
OK AeroTech J500 87.1oz 124ft/s 795ft/s 31.7G 3,094ft 11.4s 10s
OK Loki J528 90.3oz 128ft/s 826ft/s 39.7G 3,118ft 11.4s 10s
OK AeroTech J270 86.6oz 81ft/s 689ft/s 13.9G 3,136ft 12.0s 9s
OK Cesaroni J94 87.3oz 49ft/s 435ft/s 5.7G 3,190ft 14.2s 7s
OK Loki J326 91.0oz 114ft/s 683ft/s 37.5G 3,245ft 12.0s 10s
OK AeroTech J435 86.0oz 114ft/s 823ft/s 27.9G 3,278ft 11.7s 10s
OK Loki J712 90.5oz 126ft/s 897ft/s 34.0G 3,283ft 11.6s 10s
OK Cesaroni J410 89.9oz 99ft/s 794ft/s 19.4G 3,289ft 11.9s 10s
OK Cesaroni J425 88.7oz 103ft/s 808ft/s 26.2G 3,300ft 11.8s 10s
OK Cesaroni J330 88.8oz 95ft/s 755ft/s 17.7G 3,305ft 12.1s 10s
OK Cesaroni J354 91.4oz 97ft/s 768ft/s 19.5G 3,451ft 12.2s 10s

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 AeroTech G67 speed at end of launch guide too slow (42ft/s)
failedG Loki G69 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (40ft/s)
failedG Loki G70 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (29ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (38ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (39ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (32ft/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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