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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 30 motors that fit and appear to have enough thrust (769 motors didn't fit, 1 motors failed safety checks). 31 motor had thrust curves available and 59 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:   Lil Rascal
Owner: Bradley L Smith
Body Diameter: 4.00in
Dry Weight: 60.0oz
MMT Diameter: 54.0mm
MMT Length: 12.00in
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 AeroTech I599 78.1oz 128ft/s 567ft/s 34.3G 1,851ft 9.3s 9s
OK AeroTech I215 78.6oz 74ft/s 467ft/s 10.9G 1,859ft 10.0s 8s
OK Cesaroni I140 79.9oz 53ft/s 404ft/s 6.1G 1,868ft 10.6s 8s
OK AeroTech I170 78.6oz 62ft/s 446ft/s 8.3G 1,912ft 10.3s 8s
OK AeroTech I115 79.2oz 48ft/s 386ft/s 6.3G 1,928ft 10.9s 7s
OK AeroTech I229 78.1oz 73ft/s 497ft/s 11.5G 1,937ft 10.0s 8s
OK Cesaroni I445 80.3oz 95ft/s 609ft/s 22.6G 2,135ft 10.0s 9s
OK Cesaroni I150 80.1oz 57ft/s 449ft/s 6.9G 2,203ft 11.2s 8s
OK Cesaroni I218 80.5oz 72ft/s 529ft/s 10.7G 2,266ft 10.8s 9s
OK Cesaroni I120 82.0oz 52ft/s 419ft/s 5.4G 2,388ft 12.0s 8s
OK Cesaroni I165 81.0oz 60ft/s 485ft/s 7.3G 2,419ft 11.5s 8s
OK Cesaroni J1055 87.2oz 148ft/s 923ft/s 45.6G 2,850ft 10.7s 10s
OK Cesaroni J250 89.3oz 62ft/s 646ft/s 9.8G 2,890ft 11.9s 9s
OK Cesaroni J280 93.7oz 69ft/s 680ft/s 10.6G 2,939ft 11.8s 9s
OK AeroTech J250 92.0oz 66ft/s 644ft/s 10.2G 2,941ft 11.8s 9s
OK Cesaroni I100 88.5oz 65ft/s 401ft/s 11.4G 2,950ft 13.4s 4s
OK AeroTech J250 85.0oz 79ft/s 637ft/s 13.1G 3,004ft 11.7s 9s
OK AeroTech J315 90.0oz 79ft/s 694ft/s 13.9G 3,081ft 11.8s 9s
OK AeroTech J1299 89.4oz 169ft/s 1,036ft/s 58.3G 3,106ft 10.9s 10s
OK Cesaroni J145 89.5oz 68ft/s 501ft/s 18.5G 3,111ft 12.7s 8s
OK AeroTech I65 86.5oz 60ft/s 404ft/s 7.2G 3,138ft 14.0s 6s
OK AeroTech J90 90.1oz 49ft/s 466ft/s 5.9G 3,167ft 13.7s 6s
OK Cesaroni J430 88.2oz 94ft/s 827ft/s 20.3G 3,223ft 11.6s 10s
OK AeroTech J460 87.8oz 99ft/s 838ft/s 21.3G 3,253ft 11.5s 9s
OK Cesaroni J240 90.9oz 69ft/s 674ft/s 10.4G 3,331ft 12.4s 9s
OK Cesaroni J293 89.6oz 76ft/s 735ft/s 13.3G 3,365ft 12.3s 9s
OK AeroTech J180 88.5oz 77ft/s 599ft/s 12.2G 3,366ft 12.6s 8s
OK AeroTech J275 90.5oz 72ft/s 678ft/s 11.8G 3,382ft 12.4s 9s
OK Cesaroni J244 92.1oz 66ft/s 689ft/s 9.3G 3,477ft 12.8s 9s
OK Cesaroni J210 89.7oz 72ft/s 604ft/s 12.1G 3,615ft 13.4s 9s

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 I117 speed at end of launch guide too slow (47ft/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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