Search for Motors Automatically Find Motors Login or Edit Settings Data File Outbox ThrustCurve.org home ThrustCurve.org

Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 79 motors that fit and appear to have enough thrust (689 motors didn't fit, 29 motors failed safety checks). 106 motor had thrust curves available and 210 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:   MDRM
Owner: KenRico
Body Diameter: 4.00in
Dry Weight: 41.0oz
MMT Diameter: 29.0mm
MMT Length: 14.00in
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 Cesaroni F120 44.7oz 70ft/s 129ft/s 10.5G 242ft 4.0s 4s
OK AeroTech F67 43.8oz 55ft/s 134ft/s 6.1G 288ft 4.5s 4s
OK AeroTech F50 44.0oz 50ft/s 136ft/s 4.9G 332ft 4.9s 3s
OK AeroTech F52 45.3oz 50ft/s 137ft/s 5.3G 349ft 5.0s 4s
warningsW Estes F50 43.9oz 52ft/s 151ft/s 5.4G 399ft 5.3s 4s
OK AeroTech G54 45.8oz 51ft/s 151ft/s 5.4G 408ft 5.4s 4s
OK Cesaroni G88 46.4oz 56ft/s 176ft/s 8.0G 441ft 5.4s 4s
OK AeroTech G104 45.8oz 66ft/s 180ft/s 8.6G 461ft 5.4s 5s
OK AeroTech G74 44.1oz 55ft/s 182ft/s 6.4G 470ft 5.6s 4s
OK AeroTech G53 46.1oz 52ft/s 163ft/s 5.7G 493ft 5.9s 4s
OK Cesaroni G80 46.1oz 53ft/s 194ft/s 6.7G 523ft 5.9s 5s
OK AeroTech G77 46.8oz 50ft/s 202ft/s 5.9G 570ft 6.2s 5s
OK AeroTech G77 45.3oz 55ft/s 210ft/s 6.7G 594ft 6.3s 5s
OK Cesaroni G68 46.5oz 48ft/s 202ft/s 6.1G 620ft 6.5s 5s
OK AeroTech G79 46.5oz 56ft/s 211ft/s 6.6G 620ft 6.4s 5s
OK AeroTech G79 45.4oz 48ft/s 203ft/s 5.4G 620ft 6.6s 5s
OK Cesaroni G83 46.1oz 57ft/s 214ft/s 6.8G 625ft 6.4s 5s
OK Cesaroni G57 46.1oz 51ft/s 192ft/s 5.9G 625ft 6.6s 5s
OK Cesaroni G250 46.0oz 97ft/s 259ft/s 21.4G 669ft 6.1s 6s
OK AeroTech G76 46.2oz 69ft/s 212ft/s 10.7G 695ft 6.6s 5s
OK Cesaroni G126 46.1oz 70ft/s 250ft/s 11.4G 708ft 6.5s 6s
OK AeroTech G64 46.3oz 59ft/s 208ft/s 7.4G 713ft 6.8s 4s
OK AeroTech G75 45.6oz 57ft/s 228ft/s 6.9G 733ft 6.8s 5s
OK AeroTech G78 45.4oz 56ft/s 240ft/s 7.0G 754ft 6.9s 5s
OK Cesaroni G131 48.1oz 66ft/s 261ft/s 10.0G 755ft 6.7s 6s
OK AeroTech G125 45.4oz 68ft/s 274ft/s 10.8G 788ft 6.7s 6s
OK AeroTech G80 45.5oz 59ft/s 250ft/s 7.2G 809ft 7.0s 5s
OK Cesaroni G106 47.6oz 58ft/s 277ft/s 8.9G 849ft 7.1s 6s
OK KBA G82 49.1oz 50ft/s 259ft/s 6.2G 867ft 7.4s 5s
OK KBA G135 49.0oz 65ft/s 295ft/s 10.4G 882ft 7.2s 6s
OK Cesaroni G125 47.9oz 72ft/s 318ft/s 11.1G 1,010ft 7.6s 6s
OK Cesaroni G118 47.6oz 66ft/s 315ft/s 10.8G 1,011ft 7.6s 6s
OK AeroTech H165 48.1oz 78ft/s 334ft/s 13.2G 1,016ft 7.5s 6s
OK Cesaroni G54 47.8oz 60ft/s 239ft/s 8.1G 1,022ft 8.1s 5s
OK Cesaroni H175 49.7oz 78ft/s 344ft/s 15.0G 1,035ft 7.5s 6s
OK Cesaroni H133 47.7oz 73ft/s 326ft/s 13.5G 1,040ft 7.6s 6s
OK Cesaroni H410 47.4oz 126ft/s 387ft/s 38.3G 1,060ft 7.3s 7s
OK Cesaroni H163 47.6oz 80ft/s 348ft/s 15.4G 1,066ft 7.6s 6s
OK Cesaroni H90 46.7oz 65ft/s 306ft/s 10.9G 1,067ft 7.9s 6s
OK Cesaroni H54 48.4oz 54ft/s 246ft/s 6.5G 1,071ft 8.4s 5s
OK Cesaroni H87 48.2oz 57ft/s 302ft/s 8.6G 1,072ft 8.0s 6s
OK AeroTech G138 46.2oz 69ft/s 358ft/s 12.5G 1,081ft 7.6s 7s
OK AeroTech H128 48.3oz 76ft/s 342ft/s 12.5G 1,090ft 7.7s 6s
OK AeroTech H238 47.9oz 89ft/s 364ft/s 16.7G 1,103ft 7.6s 7s
OK Cesaroni H123 49.0oz 65ft/s 340ft/s 9.2G 1,110ft 7.9s 6s
OK AeroTech H115 48.2oz 63ft/s 337ft/s 8.2G 1,137ft 8.0s 6s
OK AeroTech H97 50.8oz 57ft/s 326ft/s 6.7G 1,170ft 8.3s 6s
OK Cesaroni H118 49.2oz 70ft/s 344ft/s 11.4G 1,185ft 8.1s 6s
OK Cesaroni H237 51.4oz 90ft/s 421ft/s 18.1G 1,272ft 8.0s 7s
OK AeroTech H220 49.8oz 94ft/s 419ft/s 21.2G 1,287ft 8.0s 7s
OK Cesaroni H151 49.4oz 78ft/s 393ft/s 13.8G 1,309ft 8.2s 7s
OK AeroTech H210 49.7oz 89ft/s 424ft/s 17.4G 1,310ft 8.1s 7s
OK KBA H130 66.0oz 68ft/s 340ft/s 11.0G 1,335ft 8.7s 7s
OK Cesaroni H170 49.2oz 87ft/s 418ft/s 16.4G 1,367ft 8.3s 7s
OK Cesaroni H160 50.6oz 76ft/s 418ft/s 12.2G 1,371ft 8.4s 7s
OK Cesaroni H135 49.9oz 72ft/s 396ft/s 10.9G 1,372ft 8.5s 7s
OK AeroTech H182 48.3oz 79ft/s 438ft/s 13.0G 1,374ft 8.3s 7s
OK AeroTech H180 49.9oz 87ft/s 439ft/s 17.3G 1,412ft 8.4s 7s
OK AeroTech H250 50.0oz 108ft/s 466ft/s 22.2G 1,426ft 8.3s 7s
OK AeroTech H135 48.5oz 71ft/s 398ft/s 10.4G 1,469ft 8.8s 7s
OK KBA H225 52.1oz 81ft/s 472ft/s 17.1G 1,473ft 8.6s 7s
OK AeroTech H195 47.9oz 94ft/s 475ft/s 18.1G 1,487ft 8.4s 7s
OK Cesaroni H53 51.1oz 48ft/s 301ft/s 5.6G 1,496ft 9.9s 6s
OK Cesaroni H295 53.1oz 100ft/s 501ft/s 22.8G 1,501ft 8.4s 7s
OK Cesaroni H180 52.1oz 89ft/s 464ft/s 17.7G 1,565ft 8.7s 7s
OK Cesaroni H194 51.0oz 90ft/s 474ft/s 18.9G 1,566ft 8.7s 7s
OK Cesaroni H200 50.7oz 93ft/s 481ft/s 19.6G 1,594ft 8.7s 7s
OK Cesaroni H255 49.2oz 104ft/s 533ft/s 26.5G 1,645ft 8.6s 8s
OK Cesaroni H399 51.4oz 127ft/s 577ft/s 37.2G 1,656ft 8.6s 8s
OK Cesaroni H140 50.8oz 87ft/s 449ft/s 16.4G 1,661ft 9.0s 7s
OK AeroTech H268 53.6oz 104ft/s 558ft/s 21.0G 1,787ft 9.0s 8s
OK Cesaroni H159 53.1oz 75ft/s 492ft/s 11.6G 1,791ft 9.4s 7s
OK Cesaroni H233 52.6oz 98ft/s 552ft/s 22.3G 1,817ft 9.0s 8s
OK Cesaroni H255 52.2oz 110ft/s 575ft/s 27.4G 1,838ft 9.0s 8s
OK Cesaroni H160 52.3oz 93ft/s 496ft/s 20.8G 1,867ft 9.3s 7s
OK AeroTech I200 53.6oz 97ft/s 534ft/s 19.4G 1,888ft 9.3s 7s
OK Cesaroni I204 53.3oz 98ft/s 564ft/s 23.1G 1,984ft 9.4s 8s
OK AeroTech I205 52.1oz 91ft/s 575ft/s 24.1G 1,991ft 9.4s 7s
warningsW,D Estes G80 45.4oz 6:1 thrust/weight ratio (no data)

W Motor total weight unknown, lift-off Weight not accurate.

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 Estes E16 speed at end of launch guide too slow (18ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (31ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (24ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (34ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (31ft/s)
failedG Estes F15 speed at end of launch guide too slow (14ft/s)
failedG AeroTech F37 speed at end of launch guide too slow (36ft/s)
failedG AeroTech F62 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (35ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (30ft/s)
failedG AeroTech F42 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni F59 speed at end of launch guide too slow (47ft/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (2:1)
failedG AeroTech F26 speed at end of launch guide too slow (30ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (27ft/s)
failedG Apogee F10 speed at end of launch guide too slow (18ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (41ft/s)
failedG AeroTech F40 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (38ft/s)
failedG Estes G40 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G40 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (33ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (39ft/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.)

5 The 5:1 thrust-to-weight ratio check is a useful rule of thumb, but it does break down for motors with unusual thrust curves. For example, motors with a high initial thrust and a long tail-off may fail this test but still be safe for use.

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).

---
ThrustCurve.org home