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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 67 motors that fit and appear to have enough thrust (717 motors didn't fit, 7 motors failed safety checks). 72 motor had thrust curves available and 139 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:   Excel, Jr.
Owner: Ron Ellis
Body Diameter: 2.60in
Dry Weight: 13.0oz
MMT Diameter: 29.0mm
MMT Length: 8.00in
CD: 0.55

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 E23 16.7oz 51ft/s 183ft/s 7.3G 552ft 6.1s 4s
OK Cesaroni F36 16.7oz 56ft/s 260ft/s 16.1G 729ft 6.5s 5s
OK AeroTech F37 16.9oz 50ft/s 272ft/s 8.8G 885ft 7.3s 6s
OK AeroTech F27 15.8oz 51ft/s 256ft/s 7.1G 910ft 7.5s 5s
OK Cesaroni F36 16.6oz 54ft/s 294ft/s 8.3G 934ft 7.4s 6s
OK Cesaroni F32 16.8oz 49ft/s 282ft/s 8.5G 941ft 7.6s 6s
OK AeroTech F62 16.8oz 66ft/s 320ft/s 12.6G 966ft 7.3s 6s
OK AeroTech F23 15.9oz 57ft/s 268ft/s 10.0G 983ft 7.6s 5s
OK Cesaroni F120 16.7oz 97ft/s 366ft/s 29.6G 998ft 7.2s 7s
OK Cesaroni F31 16.6oz 50ft/s 302ft/s 11.1G 1,016ft 7.7s 6s
OK Cesaroni F59 16.5oz 70ft/s 347ft/s 14.4G 1,040ft 7.5s 6s
OK AeroTech F42 15.7oz 72ft/s 326ft/s 14.8G 1,049ft 7.5s 6s
OK AeroTech F20 15.8oz 57ft/s 285ft/s 9.9G 1,087ft 7.9s 5s
OK AeroTech F26 16.6oz 52ft/s 297ft/s 7.3G 1,155ft 8.3s 6s
OK AeroTech F50 16.0oz 76ft/s 401ft/s 15.3G 1,265ft 7.9s 6s
OK AeroTech F52 17.3oz 73ft/s 389ft/s 15.4G 1,302ft 8.2s 7s
OK AeroTech F25 16.2oz 67ft/s 336ft/s 11.8G 1,332ft 8.5s 6s
OK AeroTech F40 17.5oz 67ft/s 374ft/s 13.0G 1,398ft 8.5s 6s
warningsW Estes F50 15.9oz 79ft/s 435ft/s 16.4G 1,403ft 8.2s 7s
OK AeroTech G54 17.8oz 74ft/s 416ft/s 15.3G 1,417ft 8.4s 7s
OK Cesaroni G88 18.4oz 82ft/s 473ft/s 21.9G 1,432ft 8.3s 7s
OK AeroTech G104 17.8oz 94ft/s 479ft/s 23.6G 1,461ft 8.3s 7s
OK AeroTech G74 16.1oz 77ft/s 516ft/s 18.9G 1,514ft 8.4s 7s
OK AeroTech G38 17.4oz 61ft/s 389ft/s 9.9G 1,561ft 9.1s 6s
OK AeroTech G53 18.1oz 79ft/s 436ft/s 16.2G 1,577ft 8.8s 7s
OK Cesaroni G80 18.1oz 74ft/s 518ft/s 18.7G 1,602ft 8.7s 7s
OK AeroTech G77 18.8oz 69ft/s 527ft/s 15.7G 1,697ft 9.0s 8s
OK AeroTech G77 17.3oz 76ft/s 566ft/s 18.5G 1,709ft 8.8s 7s
warningsW Estes G40 17.3oz 73ft/s 453ft/s 14.2G 1,734ft 9.1s 7s
OK AeroTech G40 17.3oz 73ft/s 453ft/s 14.2G 1,734ft 9.1s 7s
OK Cesaroni G250 18.0oz 134ft/s 675ft/s 56.4G 1,747ft 8.6s 8s
OK AeroTech G79 18.5oz 79ft/s 543ft/s 18.0G 1,763ft 9.0s 8s
OK Cesaroni G83 18.1oz 84ft/s 554ft/s 18.9G 1,775ft 9.0s 8s
OK AeroTech G79 17.4oz 69ft/s 540ft/s 15.3G 1,791ft 9.1s 7s
OK Cesaroni G68 18.5oz 69ft/s 524ft/s 16.9G 1,803ft 9.2s 7s
OK Cesaroni G57 18.1oz 75ft/s 498ft/s 16.5G 1,836ft 9.3s 7s
OK Cesaroni G126 18.1oz 100ft/s 638ft/s 30.6G 1,857ft 8.9s 8s
OK AeroTech G76 18.2oz 100ft/s 530ft/s 28.9G 1,879ft 9.1s 7s
OK Cesaroni G131 20.1oz 90ft/s 645ft/s 25.6G 1,916ft 9.1s 8s
OK AeroTech G64 18.3oz 90ft/s 522ft/s 20.3G 1,942ft 9.3s 7s
OK AeroTech G75 17.6oz 82ft/s 578ft/s 19.6G 1,943ft 9.2s 7s
OK AeroTech G125 17.4oz 98ft/s 708ft/s 28.9G 1,952ft 8.9s 8s
OK AeroTech G78 17.4oz 82ft/s 619ft/s 19.7G 1,964ft 9.2s 8s
OK AeroTech G80 17.5oz 88ft/s 633ft/s 20.4G 2,046ft 9.3s 8s
OK AeroTech G25 17.3oz 52ft/s 409ft/s 7.8G 2,098ft 10.6s 6s
OK Cesaroni G106 19.6oz 79ft/s 680ft/s 23.1G 2,101ft 9.5s 8s
OK KBA G135 21.0oz 87ft/s 705ft/s 25.1G 2,140ft 9.6s 9s
OK KBA G82 21.1oz 69ft/s 616ft/s 14.9G 2,179ft 10.0s 8s
OK Cesaroni H410 19.4oz 164ft/s 951ft/s 95.8G 2,255ft 9.2s 9s
OK AeroTech H165 20.1oz 107ft/s 792ft/s 33.0G 2,275ft 9.5s 8s
OK AeroTech G75 21.2oz 65ft/s 607ft/s 12.3G 2,293ft 10.2s 8s
OK Cesaroni G125 19.9oz 97ft/s 753ft/s 28.3G 2,306ft 9.6s 8s
OK Cesaroni G118 19.6oz 88ft/s 749ft/s 27.6G 2,324ft 9.7s 8s
OK Cesaroni H133 19.7oz 102ft/s 768ft/s 34.1G 2,347ft 9.7s 8s
OK Cesaroni H163 19.6oz 105ft/s 830ft/s 38.9G 2,351ft 9.6s 9s
OK AeroTech G138 18.2oz 97ft/s 882ft/s 30.1G 2,358ft 9.5s 8s
OK AeroTech H238 19.9oz 122ft/s 857ft/s 41.1G 2,374ft 9.5s 9s
OK AeroTech H128 20.3oz 103ft/s 798ft/s 31.2G 2,393ft 9.7s 8s
OK Cesaroni H90 18.7oz 91ft/s 717ft/s 28.8G 2,427ft 9.8s 8s
OK Cesaroni H87 20.2oz 78ft/s 698ft/s 21.9G 2,471ft 10.1s 8s
OK AeroTech H115 20.2oz 89ft/s 781ft/s 20.9G 2,480ft 9.9s 8s
OK Cesaroni G54 19.8oz 84ft/s 557ft/s 21.0G 2,485ft 10.4s 7s
OK Cesaroni H54 20.4oz 78ft/s 566ft/s 16.9G 2,591ft 10.7s 7s
OK AeroTech H182 20.3oz 101ft/s 999ft/s 32.1G 2,727ft 9.9s 9s
OK AeroTech H195 19.9oz 125ft/s 1,064ft/s 44.9G 2,831ft 9.8s 9s
warningsW,D Estes F26 16.0oz 6:1 thrust/weight ratio (no data)
warningsW,D Estes G80 17.4oz 16:1 thrust/weight ratio (no data)

W Motor total weight unknown, lift-off Weight not accurate.

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 Estes E16 speed at end of launch guide too slow (40ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (44ft/s)
failedG Estes F15 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (45ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (43ft/s)
failedG Apogee F10 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (46ft/s)

G These simulations were run with a launch guide length of 6ft (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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