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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 62 motors that fit and appear to have enough thrust (715 motors didn't fit, 14 motors failed safety checks). 75 motor had thrust curves available and 159 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:   Ultimate Darkstar
Owner: Wayne Comfort
Body Diameter: 6.00in
Dry Weight: 41.00lb
MMT Diameter: 98.0mm
MMT Length: 60.00in
CD: 0.50

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 Cesaroni K1620 47.78lb 58ft/s 325ft/s 7.8G 1,698ft 10.8s 9s
OK AeroTech K1999 47.59lb 63ft/s 349ft/s 9.1G 1,884ft 11.2s 10s
OK AeroTech L1300 51.77lb 48ft/s 535ft/s 5.9G 4,300ft 17.2s 14s
OK AeroTech L1500 51.27lb 55ft/s 561ft/s 7.4G 4,580ft 17.3s 14s
OK AeroTech L2500 52.00lb 70ft/s 603ft/s 11.6G 4,612ft 16.9s 15s
OK Cesaroni L3150 51.43lb 79ft/s 643ft/s 15.3G 4,917ft 17.1s 16s
OK Contrail M2800 64.60lb 65ft/s 606ft/s 18.8G 5,119ft 17.8s 16s
OK Contrail M2700 64.00lb 98ft/s 611ft/s 21.7G 5,193ft 17.7s 15s
OK Cesaroni M1560 51.97lb 53ft/s 631ft/s 7.0G 5,422ft 18.8s 15s
OK Contrail M1575 64.55lb 65ft/s 638ft/s 9.4G 6,009ft 19.6s 15s
OK AeroTech M1305 56.65lb 50ft/s 691ft/s 6.8G 7,058ft 21.5s 16s
OK AeroTech M1600 56.25lb 52ft/s 759ft/s 6.7G 7,353ft 21.6s 17s
OK AeroTech M1340 56.43lb 50ft/s 736ft/s 6.7G 7,775ft 22.3s 17s
OK Cesaroni M1060 55.71lb 49ft/s 700ft/s 5.1G 7,874ft 23.2s 16s
OK AeroTech M4500 55.60lb 97ft/s 919ft/s 22.4G 7,962ft 20.8s 19s
OK Cesaroni M4770 55.34lb 94ft/s 947ft/s 22.9G 8,119ft 21.0s 19s
OK Cesaroni M1520 55.81lb 54ft/s 796ft/s 6.4G 8,142ft 22.7s 18s
OK Cesaroni M2505 54.78lb 70ft/s 882ft/s 11.4G 8,156ft 21.7s 19s
OK AeroTech M2100 56.25lb 64ft/s 862ft/s 11.3G 8,326ft 22.1s 19s
OK AeroTech M2400 55.22lb 69ft/s 886ft/s 10.3G 8,367ft 22.0s 18s
OK AeroTech M1800 61.20lb 55ft/s 826ft/s 9.5G 8,410ft 22.8s 18s
OK Cesaroni M1790 59.24lb 52ft/s 851ft/s 7.0G 8,537ft 23.0s 18s
OK AeroTech M1845 55.73lb 62ft/s 872ft/s 9.0G 8,889ft 22.9s 18s
OK Cesaroni M6400 58.46lb 114ft/s 1,069ft/s 28.2G 9,377ft 22.1s 21s
OK Gorilla M1025 63.35lb 51ft/s 741ft/s 5.3G 9,720ft 25.7s 16s
OK AeroTech M2000 60.81lb 59ft/s 944ft/s 7.9G 9,750ft 24.1s 19s
OK AeroTech M6000 59.65lb 103ft/s 1,151ft/s 27.2G 10,388ft 23.1s 21s
OK AeroTech M2500 58.78lb 70ft/s 1,034ft/s 10.2G 10,412ft 24.1s 20s
OK Cesaroni M1890 60.45lb 57ft/s 983ft/s 7.6G 10,641ft 25.1s 20s
OK Cesaroni M1800 59.39lb 59ft/s 982ft/s 7.3G 10,768ft 25.2s 20s
OK Cesaroni M1450 59.91lb 62ft/s 907ft/s 8.1G 10,769ft 25.6s 19s
OK AeroTech N2220 67.45lb 62ft/s 995ft/s 8.9G 10,881ft 25.1s 20s
OK Cesaroni N10000 62.87lb 143ft/s 1,233ft/s 43.5G 10,887ft 23.3s 22s
OK Cesaroni M795 59.72lb 52ft/s 732ft/s 5.5G 10,911ft 27.8s 15s
OK Cesaroni M3400 58.88lb 78ft/s 1,140ft/s 14.4G 10,974ft 24.2s 21s
OK AeroTech M1939 60.82lb 56ft/s 959ft/s 7.3G 11,099ft 25.6s 19s
OK Cesaroni N1800 61.24lb 58ft/s 991ft/s 7.1G 11,131ft 25.7s 20s
OK Cesaroni N2600 66.31lb 64ft/s 1,092ft/s 9.6G 11,454ft 25.4s 21s
OK Gorilla N2717 63.35lb 64ft/s 1,098ft/s 14.4G 11,562ft 25.1s 21s
OK Cesaroni N2200 66.04lb 63ft/s 1,102ft/s 8.3G 12,543ft 26.7s 21s
OK Loki N3800 66.57lb 88ft/s 1,248ft/s 16.5G 12,875ft 25.8s 23s
OK AeroTech N2000 68.08lb 65ft/s 1,099ft/s 8.9G 13,500ft 27.6s 20s
OK Gorilla N1720 75.00lb 68ft/s 1,013ft/s 9.9G 13,762ft 28.3s 20s
OK Cesaroni N5600 65.87lb 99ft/s 1,455ft/s 22.2G 14,028ft 26.1s 24s
OK Cesaroni N2500 66.72lb 74ft/s 1,226ft/s 11.4G 14,125ft 27.5s 22s
OK AeroTech N3300 67.57lb 68ft/s 1,340ft/s 12.8G 14,143ft 27.1s 23s
OK Cesaroni N3400 71.80lb 68ft/s 1,335ft/s 12.2G 14,264ft 27.4s 23s
OK Cesaroni N2850 66.77lb 71ft/s 1,303ft/s 10.6G 14,281ft 27.5s 23s
OK AeroTech N1000 69.16lb 54ft/s 894ft/s 5.9G 14,602ft 31.3s 15s
OK Cesaroni N3180 67.89lb 72ft/s 1,361ft/s 12.0G 14,611ft 27.5s 23s
OK Cesaroni N1975 70.21lb 50ft/s 1,214ft/s 6.6G 14,630ft 29.2s 22s
OK Cesaroni N1100 66.55lb 63ft/s 944ft/s 8.2G 14,883ft 30.4s 18s
OK Cesaroni N2501 70.34lb 69ft/s 1,299ft/s 10.2G 15,422ft 28.6s 23s
OK Cesaroni N1560 75.96lb 63ft/s 1,088ft/s 8.5G 16,569ft 31.2s 20s
OK Cesaroni N3800 72.44lb 80ft/s 1,541ft/s 14.2G 17,068ft 28.9s 24s
OK Cesaroni N4100 73.51lb 77ft/s 1,620ft/s 14.5G 17,203ft 28.9s 25s
OK Cesaroni N2540 76.89lb 60ft/s 1,406ft/s 7.9G 17,334ft 30.5s 23s
OK Cesaroni N2900 72.23lb 75ft/s 1,453ft/s 11.5G 17,494ft 29.8s 24s
OK Cesaroni N3301 77.43lb 77ft/s 1,523ft/s 13.4G 18,073ft 29.9s 24s
OK Cesaroni N5800 73.69lb 97ft/s 1,842ft/s 21.3G 18,958ft 29.2s 26s
OK Cesaroni O3400 78.13lb 77ft/s 1,612ft/s 12.9G 19,342ft 30.5s 24s
warningsD Gorilla M1565 62.61lb 6:1 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 K680 speed at end of launch guide too slow (35ft/s)
failedG AeroTech K650 speed at end of launch guide too slow (32ft/s)
failedG AeroTech K458 speed at end of launch guide too slow (24ft/s)
failedG AeroTech L339 speed at end of launch guide too slow (22ft/s)
failedG AeroTech L400 speed at end of launch guide too slow (29ft/s)
failedG AeroTech L952 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni L610 speed at end of launch guide too slow (38ft/s)
failedG AeroTech M1075 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni M520 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni M1290 speed at end of launch guide too slow (47ft/s)
failedG AeroTech M1419 speed at end of launch guide too slow (44ft/s)
failedG Hypertek M1010 speed at end of launch guide too slow (47ft/s)
failedG Hypertek M1000 speed at end of launch guide too slow (46ft/s)
failedG AeroTech M750 speed at end of launch guide too slow (37ft/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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