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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 17 motors that fit and appear to have enough thrust (728 motors didn't fit, 46 motors failed safety checks). 63 motor had thrust curves available and 114 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 98
Owner: Ernie Jones
Body Diameter: 4.00in
Dry Weight: 11.00lb
MMT Diameter: 54.0mm
MMT Length: 326.0mm
CD: 2.00

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 12.13lb 65ft/s 220ft/s 13.1G 608ft 6.1s 5s
OK Cesaroni I445 12.27lb 48ft/s 240ft/s 8.7G 746ft 6.9s 6s
OK Cesaroni J1055 12.70lb 74ft/s 390ft/s 18.8G 1,290ft 8.3s 8s
OK AeroTech J1299 12.84lb 87ft/s 447ft/s 24.5G 1,489ft 8.7s 8s
OK AeroTech J460 12.74lb 51ft/s 373ft/s 8.7G 1,494ft 9.3s 7s
OK AMW J1365 13.47lb 87ft/s 469ft/s 24.8G 1,596ft 8.9s 8s
OK AeroTech J1799 13.45lb 96ft/s 549ft/s 34.6G 1,819ft 9.2s 9s
OK Cesaroni J1520 13.26lb 86ft/s 548ft/s 26.6G 1,833ft 9.4s 9s
OK AMW J325 13.71lb 48ft/s 371ft/s 7.9G 1,907ft 10.7s 7s
OK Gorilla J535 13.70lb 56ft/s 466ft/s 10.1G 1,915ft 10.1s 8s
OK AMW J440 13.71lb 60ft/s 449ft/s 12.2G 1,918ft 10.0s 8s
OK Loki J525 13.73lb 51ft/s 470ft/s 9.3G 1,924ft 10.2s 8s
OK Loki J820 13.67lb 70ft/s 505ft/s 16.1G 1,943ft 9.8s 8s
OK AeroTech J540 13.39lb 55ft/s 469ft/s 10.2G 1,993ft 10.2s 8s
OK AMW J745 13.69lb 65ft/s 520ft/s 13.2G 2,046ft 10.2s 9s
OK AeroTech J800 13.39lb 67ft/s 536ft/s 14.9G 2,156ft 10.3s 8s
OK Cesaroni J760 13.37lb 63ft/s 556ft/s 14.1G 2,171ft 10.3s 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 (20ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (23ft/s)
failedG AeroTech I215 speed at end of launch guide too slow (34ft/s)
failedG AeroTech I229 speed at end of launch guide too slow (34ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (21ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (28ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni I218 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (28ft/s)
failedG Cesaroni I100 speed at end of launch guide too slow (32ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni J145 speed at end of launch guide too slow (33ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (38ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni J280 speed at end of launch guide too slow (35ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (32ft/s)
failedG AeroTech J315 speed at end of launch guide too slow (40ft/s)
failedG AeroTech J180 speed at end of launch guide too slow (38ft/s)
failedG AeroTech J275 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni J240 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni J430 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni J210 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni J293 speed at end of launch guide too slow (37ft/s)
failedG Gorilla J365 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (32ft/s)
failedG Loki J350 speed at end of launch guide too slow (39ft/s)
failedG Gorilla J167 speed at end of launch guide too slow (37ft/s)
failedG AMW J400 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni J360 speed at end of launch guide too slow (38ft/s)
failedG Gorilla J465 speed at end of launch guide too slow (43ft/s)
failedG AMW J475 speed at end of launch guide too slow (45ft/s)
failedG Gorilla J395 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni J380 speed at end of launch guide too slow (40ft/s)
failedG Gorilla J485 speed at end of launch guide too slow (46ft/s)
failedG AMW J395 speed at end of launch guide too slow (45ft/s)
failedG AeroTech J401 speed at end of launch guide too slow (47ft/s)
failedG Loki J175 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni J355 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J295 speed at end of launch guide too slow (44ft/s)
failedG Loki J300 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (27ft/s)
failedG AeroTech J415 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni J449 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni K360 speed at end of launch guide too slow (40ft/s)

G These simulations were run with a launch guide length of 5ft (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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