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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 (740 motors didn't fit, 4 motors failed safety checks). 70 motor had thrust curves available and 141 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:   Troop 85
Owner: Bayard Storey
Body Diameter: 7.70in
Dry Weight: 30.00lb
MMT Diameter: 98.0mm
MMT Length: 55.00in
CD: 0.25

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 K680 36.69lb 48ft/s 359ft/s 4.1G 2,350ft 13.4s 10s
OK Cesaroni K1620 36.78lb 78ft/s 438ft/s 10.5G 2,717ft 13.2s 12s
OK AeroTech K1999 36.59lb 85ft/s 469ft/s 12.2G 2,975ft 13.7s 12s
OK AeroTech L1300 40.77lb 66ft/s 706ft/s 7.8G 6,148ft 19.7s 16s
OK Cesaroni L610 40.97lb 52ft/s 564ft/s 4.1G 6,259ft 21.7s 14s
OK AeroTech L2500 41.00lb 95ft/s 783ft/s 15.0G 6,404ft 19.1s 17s
OK AeroTech L1500 40.27lb 75ft/s 736ft/s 9.7G 6,435ft 19.6s 16s
OK Cesaroni L3150 40.43lb 108ft/s 835ft/s 19.9G 6,743ft 19.3s 18s
OK AeroTech L952 41.05lb 49ft/s 641ft/s 5.1G 6,751ft 21.6s 15s
OK AeroTech M1075 45.37lb 54ft/s 730ft/s 5.5G 7,263ft 21.9s 16s
OK Cesaroni M1560 40.97lb 72ft/s 823ft/s 9.1G 7,466ft 21.1s 18s
OK AeroTech M1305 45.65lb 67ft/s 878ft/s 8.7G 9,297ft 23.5s 18s
OK AeroTech M1600 45.25lb 70ft/s 967ft/s 8.6G 9,607ft 23.6s 19s
OK AeroTech M4500 44.60lb 130ft/s 1,161ft/s 28.4G 10,059ft 22.5s 21s
OK AeroTech M1340 45.43lb 67ft/s 930ft/s 8.5G 10,100ft 24.2s 19s
OK Cesaroni M520 44.76lb 55ft/s 681ft/s 4.4G 10,144ft 27.2s 13s
OK Cesaroni M4770 44.34lb 126ft/s 1,202ft/s 28.8G 10,228ft 22.6s 21s
OK Cesaroni M1060 44.71lb 67ft/s 891ft/s 6.6G 10,357ft 25.2s 18s
OK Cesaroni M2505 43.78lb 90ft/s 1,120ft/s 14.6G 10,399ft 23.4s 20s
OK Cesaroni M1290 46.34lb 63ft/s 966ft/s 6.7G 10,517ft 25.1s 19s
OK AeroTech M1419 45.25lb 60ft/s 904ft/s 6.5G 10,528ft 25.3s 18s
OK Cesaroni M1520 44.81lb 72ft/s 1,008ft/s 8.3G 10,562ft 24.6s 20s
OK AeroTech M2100 45.25lb 85ft/s 1,087ft/s 14.3G 10,576ft 23.8s 20s
OK AeroTech M2400 44.22lb 90ft/s 1,122ft/s 13.2G 10,609ft 23.7s 20s
OK AeroTech M1800 50.20lb 72ft/s 1,031ft/s 11.8G 10,659ft 24.5s 20s
OK Cesaroni M1790 48.24lb 69ft/s 1,071ft/s 8.9G 10,887ft 24.8s 20s
OK AeroTech M1845 44.73lb 83ft/s 1,098ft/s 11.5G 11,235ft 24.6s 20s
OK Cesaroni M6400 47.46lb 141ft/s 1,338ft/s 35.4G 11,526ft 23.6s 22s
OK AeroTech M2000 49.81lb 77ft/s 1,175ft/s 9.9G 12,130ft 25.6s 21s
OK AeroTech M750 49.35lb 49ft/s 799ft/s 4.6G 12,346ft 29.2s 13s
OK Gorilla M1025 52.35lb 66ft/s 918ft/s 6.7G 12,371ft 27.6s 18s
OK AeroTech M6000 48.65lb 136ft/s 1,431ft/s 33.9G 12,628ft 24.6s 23s
OK AeroTech M2500 47.78lb 92ft/s 1,287ft/s 12.9G 12,765ft 25.5s 21s
OK Cesaroni N10000 51.87lb 190ft/s 1,522ft/s 53.9G 13,069ft 24.6s 24s
OK Cesaroni M1890 49.45lb 74ft/s 1,218ft/s 9.6G 13,128ft 26.6s 21s
OK AeroTech N2220 56.45lb 82ft/s 1,212ft/s 10.9G 13,250ft 26.6s 21s
OK Cesaroni M1800 48.39lb 78ft/s 1,220ft/s 9.1G 13,291ft 26.7s 21s
OK Cesaroni M3400 47.88lb 103ft/s 1,419ft/s 18.1G 13,319ft 25.5s 23s
OK Cesaroni M1450 48.91lb 81ft/s 1,120ft/s 10.1G 13,356ft 27.1s 20s
OK AeroTech M1939 49.82lb 74ft/s 1,181ft/s 9.1G 13,607ft 27.0s 20s
OK Cesaroni N1800 50.24lb 76ft/s 1,223ft/s 8.8G 13,651ft 27.1s 21s
OK Cesaroni N2600 55.31lb 82ft/s 1,335ft/s 11.9G 13,884ft 26.8s 23s
OK Cesaroni M795 48.72lb 69ft/s 914ft/s 7.0G 13,891ft 29.6s 17s
OK Gorilla N2717 52.35lb 83ft/s 1,340ft/s 17.7G 13,969ft 26.5s 22s
OK Cesaroni N2200 55.04lb 81ft/s 1,338ft/s 10.2G 15,131ft 28.1s 22s
OK Loki N3800 55.57lb 112ft/s 1,509ft/s 20.1G 15,285ft 27.0s 24s
OK AeroTech N2000 57.08lb 84ft/s 1,322ft/s 10.9G 16,080ft 28.8s 21s
OK Cesaroni N5600 54.87lb 128ft/s 1,770ft/s 27.1G 16,373ft 27.1s 25s
OK Gorilla N1720 64.00lb 88ft/s 1,201ft/s 11.8G 16,514ft 29.9s 22s
OK Cesaroni N2500 55.72lb 95ft/s 1,477ft/s 13.8G 16,702ft 28.6s 23s
OK Cesaroni N3400 60.80lb 88ft/s 1,605ft/s 14.8G 16,758ft 28.5s 24s
OK Cesaroni N2850 55.77lb 91ft/s 1,576ft/s 12.9G 16,841ft 28.6s 24s
OK AeroTech N3300 56.57lb 99ft/s 1,623ft/s 14.3G 16,884ft 28.3s 24s
OK Cesaroni N3180 56.89lb 96ft/s 1,643ft/s 14.6G 17,106ft 28.6s 24s
OK Cesaroni N1975 59.21lb 63ft/s 1,464ft/s 8.0G 17,363ft 30.4s 23s
OK AeroTech N1000 58.16lb 71ft/s 1,079ft/s 7.2G 17,772ft 32.8s 17s
OK Cesaroni N1100 55.55lb 81ft/s 1,137ft/s 10.0G 17,981ft 31.8s 20s
OK Cesaroni N2501 59.34lb 90ft/s 1,551ft/s 12.3G 18,018ft 29.6s 24s
OK Cesaroni N1560 64.96lb 80ft/s 1,283ft/s 10.1G 19,481ft 32.5s 22s
OK Cesaroni N3800 61.44lb 105ft/s 1,832ft/s 17.1G 19,625ft 29.8s 25s
OK Cesaroni N4100 62.51lb 102ft/s 1,930ft/s 17.4G 19,734ft 29.8s 26s
OK Cesaroni N2540 65.89lb 77ft/s 1,663ft/s 9.4G 20,067ft 31.5s 24s
OK Cesaroni N2900 61.23lb 98ft/s 1,722ft/s 13.8G 20,209ft 30.7s 24s
OK Cesaroni N3301 66.43lb 100ft/s 1,792ft/s 15.8G 20,683ft 30.8s 25s
OK Cesaroni N5800 62.69lb 130ft/s 2,179ft/s 25.4G 21,419ft 29.9s 26s
OK Cesaroni O3400 67.13lb 100ft/s 1,889ft/s 15.3G 21,967ft 31.3s 25s
warningsD Gorilla M1565 51.61lb 7:1 thrust/weight ratio (no data)

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 AeroTech K650 speed at end of launch guide too slow (45ft/s)
failedG AeroTech K458 speed at end of launch guide too slow (34ft/s)
failedG AeroTech L339 speed at end of launch guide too slow (33ft/s)
failedG AeroTech L400 speed at end of launch guide too slow (41ft/s)

G These simulations were run with a launch guide length of 11ft (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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