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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 83 motors that fit and appear to have enough thrust (720 motors didn't fit, 8 motors failed safety checks). 91 motor had thrust curves available and 168 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:   Mathilde
Owner: Sather M. Ranum
Body Diameter: 5.50in
Dry Weight: 220.0oz
MMT Diameter: 75.0mm
MMT Length: 34.00in
CD: 0.65

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 Contrail K707 349.6oz 63ft/s 381ft/s 13.2G 2,056ft 11.3s 9s
OK AeroTech K1499 281.4oz 85ft/s 515ft/s 21.3G 2,458ft 11.6s 11s
OK Contrail K456 350.7oz 53ft/s 400ft/s 8.2G 2,536ft 12.8s 9s
OK Contrail K543 347.2oz 55ft/s 533ft/s 8.3G 3,602ft 14.7s 11s
OK Cesaroni K735 308.5oz 49ft/s 614ft/s 9.4G 3,606ft 14.3s 11s
OK Cesaroni K2000 306.9oz 90ft/s 830ft/s 28.5G 4,235ft 14.2s 13s
OK AeroTech K780 323.5oz 53ft/s 690ft/s 9.6G 4,256ft 15.2s 12s
OK Cesaroni K1085 305.7oz 63ft/s 776ft/s 12.7G 4,398ft 14.9s 13s
OK AeroTech K560 316.8oz 48ft/s 620ft/s 7.7G 4,530ft 16.0s 11s
OK Cesaroni K661 309.2oz 50ft/s 694ft/s 7.7G 4,541ft 15.9s 12s
OK AeroTech K1000 311.8oz 68ft/s 774ft/s 12.3G 4,558ft 15.2s 13s
OK Cesaroni K510 311.4oz 50ft/s 619ft/s 6.9G 4,646ft 16.5s 12s
OK Cesaroni L585 318.2oz 49ft/s 691ft/s 6.4G 4,909ft 16.7s 12s
OK Cesaroni L820 340.6oz 49ft/s 799ft/s 9.0G 5,175ft 16.6s 13s
OK Cesaroni L910 312.3oz 61ft/s 832ft/s 10.7G 5,214ft 16.2s 13s
OK Cesaroni L3200 335.1oz 107ft/s 1,105ft/s 40.1G 5,472ft 15.4s 14s
OK Gorilla L789 339.2oz 49ft/s 845ft/s 8.4G 5,750ft 17.3s 13s
OK AeroTech L1150 349.6oz 67ft/s 935ft/s 12.5G 5,869ft 16.8s 14s
OK Gorilla L1150 343.5oz 61ft/s 947ft/s 16.7G 5,981ft 16.8s 14s
OK Loki L930 344.8oz 61ft/s 898ft/s 10.8G 6,051ft 17.3s 13s
OK Gorilla L985 348.1oz 51ft/s 953ft/s 10.6G 6,051ft 17.4s 14s
OK Cesaroni L1720 337.8oz 81ft/s 1,113ft/s 19.8G 6,107ft 16.4s 14s
OK Cesaroni L995 346.7oz 66ft/s 906ft/s 12.1G 6,121ft 17.1s 13s
OK Gorilla L425 343.5oz 49ft/s 635ft/s 6.9G 6,148ft 19.1s 11s
OK AeroTech L1520 348.8oz 75ft/s 1,055ft/s 16.4G 6,180ft 16.7s 14s
OK Gorilla L1112 348.0oz 65ft/s 971ft/s 12.5G 6,183ft 17.1s 14s
OK AeroTech L875 381.4oz 53ft/s 882ft/s 8.0G 6,202ft 17.9s 13s
OK AeroTech L850 352.0oz 61ft/s 865ft/s 11.2G 6,204ft 17.4s 13s
OK AeroTech L1040 386.4oz 56ft/s 917ft/s 10.5G 6,222ft 17.5s 13s
OK AeroTech L1256 352.5oz 69ft/s 992ft/s 14.2G 6,225ft 17.0s 14s
OK Cesaroni L1355 395.0oz 73ft/s 982ft/s 15.2G 6,241ft 17.1s 14s
OK Cesaroni L851 353.7oz 55ft/s 896ft/s 8.9G 6,270ft 17.8s 14s
OK AeroTech L900 386.6oz 53ft/s 890ft/s 8.3G 6,307ft 18.0s 14s
OK Cesaroni L1050 341.6oz 64ft/s 965ft/s 11.6G 6,314ft 17.3s 14s
OK Loki L1482 344.8oz 69ft/s 1,112ft/s 15.5G 6,355ft 16.9s 14s
OK AeroTech L1390 356.8oz 69ft/s 1,044ft/s 15.8G 6,420ft 17.1s 14s
OK Cesaroni L800 343.8oz 61ft/s 860ft/s 11.5G 6,441ft 17.9s 13s
OK Loki L840 352.2oz 59ft/s 891ft/s 11.0G 6,516ft 17.8s 13s
OK AeroTech L1170 396.0oz 68ft/s 1,002ft/s 12.4G 6,581ft 17.6s 14s
OK AeroTech L1250 419.2oz 64ft/s 982ft/s 12.3G 6,772ft 18.1s 14s
OK Gorilla L1065 409.2oz 64ft/s 971ft/s 14.9G 6,861ft 17.9s 14s
OK Cesaroni L1350 346.0oz 74ft/s 1,118ft/s 14.6G 6,914ft 17.5s 14s
OK AeroTech L1420 380.9oz 73ft/s 1,143ft/s 14.1G 7,129ft 17.8s 15s
OK AMW L1290 410.4oz 60ft/s 1,069ft/s 12.0G 7,203ft 18.5s 15s
OK Cesaroni L1685 433.4oz 79ft/s 1,127ft/s 17.9G 7,236ft 17.8s 15s
OK Cesaroni L2375 366.8oz 93ft/s 1,367ft/s 24.7G 7,285ft 17.2s 15s
OK AeroTech L1365 393.1oz 68ft/s 1,118ft/s 14.1G 7,310ft 18.2s 14s
OK Cesaroni L1410 400.4oz 64ft/s 1,139ft/s 13.2G 7,322ft 18.2s 15s
OK AeroTech L2200 388.7oz 95ft/s 1,274ft/s 28.1G 7,406ft 17.4s 15s
OK Cesaroni L1395 372.5oz 78ft/s 1,190ft/s 16.5G 7,525ft 18.1s 15s
OK AeroTech M1350 389.6oz 75ft/s 1,144ft/s 15.4G 7,748ft 18.3s 14s
OK Cesaroni L1115 375.3oz 72ft/s 1,070ft/s 14.8G 7,762ft 18.7s 14s
OK Loki M1200 409.3oz 58ft/s 1,115ft/s 11.6G 7,778ft 18.9s 14s
OK Cesaroni M2250 375.7oz 93ft/s 1,385ft/s 24.6G 7,807ft 17.6s 15s
OK AeroTech M1500 392.7oz 77ft/s 1,201ft/s 14.8G 7,821ft 18.4s 15s
OK Gorilla M1355 414.0oz 67ft/s 1,142ft/s 15.0G 7,865ft 18.7s 15s
OK Cesaroni M1101 394.2oz 68ft/s 1,087ft/s 12.1G 7,936ft 18.9s 14s
OK AeroTech M1780 386.3oz 89ft/s 1,285ft/s 21.4G 7,958ft 18.1s 15s
OK AeroTech M1550 419.1oz 78ft/s 1,210ft/s 17.2G 7,982ft 18.6s 15s
OK AeroTech M2050 380.8oz 96ft/s 1,351ft/s 23.3G 8,022ft 18.1s 15s
OK AeroTech M1297 383.6oz 79ft/s 1,168ft/s 17.7G 8,072ft 18.5s 14s
OK Cesaroni M1830 379.6oz 85ft/s 1,331ft/s 20.2G 8,093ft 18.1s 15s
OK Cesaroni M1230 390.9oz 64ft/s 1,158ft/s 12.9G 8,201ft 19.0s 14s
OK Gorilla M1665 418.2oz 78ft/s 1,234ft/s 18.7G 8,203ft 18.6s 15s
OK Cesaroni M3100 397.0oz 100ft/s 1,589ft/s 32.7G 8,227ft 17.7s 16s
OK Gorilla M745 418.2oz 62ft/s 887ft/s 12.5G 8,306ft 20.2s 13s
OK Gorilla M1952 412.0oz 92ft/s 1,344ft/s 22.7G 8,371ft 18.5s 15s
OK Loki M900 415.1oz 49ft/s 1,033ft/s 7.9G 8,410ft 20.3s 14s
OK Cesaroni M1810 411.0oz 79ft/s 1,372ft/s 17.2G 8,536ft 18.7s 15s
OK Loki M1882 415.2oz 90ft/s 1,395ft/s 21.3G 8,584ft 18.5s 15s
OK Cesaroni M1160 421.0oz 58ft/s 1,148ft/s 10.4G 8,640ft 19.8s 15s
OK Cesaroni M1675 404.2oz 75ft/s 1,350ft/s 17.4G 8,672ft 18.8s 15s
OK Loki M2550 415.1oz 94ft/s 1,534ft/s 25.2G 8,730ft 18.3s 16s
OK Cesaroni M1670 404.5oz 79ft/s 1,295ft/s 18.7G 8,737ft 19.3s 15s
OK Cesaroni M3700 423.8oz 111ft/s 1,683ft/s 34.6G 8,786ft 18.2s 16s
OK Cesaroni M1401 423.7oz 70ft/s 1,251ft/s 13.2G 8,872ft 19.5s 15s
OK Cesaroni M1400 407.0oz 79ft/s 1,236ft/s 18.5G 8,922ft 19.3s 15s
OK Loki M1650 418.6oz 104ft/s 1,255ft/s 31.1G 9,028ft 19.1s 15s
OK Cesaroni M1300 419.5oz 91ft/s 1,137ft/s 23.5G 9,134ft 19.5s 15s
OK Cesaroni M1540 428.3oz 78ft/s 1,329ft/s 19.3G 9,271ft 19.4s 15s
OK AeroTech M1315 419.1oz 73ft/s 1,221ft/s 14.4G 9,335ft 19.8s 14s
OK AeroTech M650 400.8oz 65ft/s 913ft/s 11.0G 9,539ft 21.6s 10s
OK Cesaroni M2020 468.0oz 86ft/s 1,533ft/s 19.6G 10,335ft 19.9s 16s

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 Contrail K630 speed at end of launch guide too slow (48ft/s)
failedG Cesaroni K555 speed at end of launch guide too slow (44ft/s)
failedG Gorilla L695 speed at end of launch guide too slow (39ft/s)
failedG Loki L780 speed at end of launch guide too slow (45ft/s)
failedG Loki L480 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni L645 speed at end of launch guide too slow (47ft/s)
failedG Contrail L369 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni L395 speed at end of launch guide too slow (38ft/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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