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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 55 motors that fit and appear to have enough thrust (679 motors didn't fit, 57 motors failed safety checks). 110 motor had thrust curves available and 217 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:   G Force Dual Deploy
Owner: David Todd
Body Diameter: 4.00in
Dry Weight: 58.1oz
MMT Diameter: 29.0mm
MMT Length: 40.0cm
CD: 1.00

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 G104 62.9oz 51ft/s 125ft/s 6.0G 264ft 4.3s 3s
OK Cesaroni G250 63.1oz 78ft/s 185ft/s 15.3G 413ft 5.0s 5s
OK AeroTech G76 63.3oz 54ft/s 147ft/s 7.6G 419ft 5.4s 3s
OK Cesaroni G126 63.2oz 56ft/s 176ft/s 8.0G 433ft 5.3s 4s
OK Cesaroni G131 65.2oz 52ft/s 186ft/s 7.1G 470ft 5.5s 4s
OK AeroTech G125 62.5oz 54ft/s 193ft/s 7.6G 490ft 5.6s 5s
OK KBA G135 66.1oz 52ft/s 212ft/s 7.5G 563ft 6.0s 5s
OK Cesaroni G118 64.7oz 53ft/s 225ft/s 7.7G 656ft 6.5s 5s
OK Cesaroni G125 65.0oz 57ft/s 228ft/s 7.9G 658ft 6.4s 5s
OK AeroTech H165 65.2oz 63ft/s 240ft/s 9.4G 668ft 6.3s 5s
OK Cesaroni H133 64.8oz 57ft/s 234ft/s 9.6G 682ft 6.5s 5s
OK Cesaroni H175 66.8oz 62ft/s 250ft/s 11.0G 687ft 6.4s 5s
OK Cesaroni H90 63.8oz 51ft/s 217ft/s 7.7G 691ft 6.7s 5s
OK Cesaroni H163 64.7oz 63ft/s 251ft/s 11.1G 705ft 6.5s 5s
OK AeroTech G138 63.3oz 55ft/s 256ft/s 8.9G 712ft 6.5s 5s
OK Cesaroni H410 64.5oz 102ft/s 281ft/s 27.8G 714ft 6.2s 6s
OK AeroTech H128 65.4oz 61ft/s 247ft/s 9.0G 723ft 6.6s 5s
OK Cesaroni H123 66.1oz 52ft/s 245ft/s 6.6G 734ft 6.8s 5s
OK AeroTech H238 65.0oz 71ft/s 264ft/s 12.0G 740ft 6.5s 6s
OK AeroTech H115 65.3oz 50ft/s 242ft/s 5.8G 751ft 6.9s 5s
OK Cesaroni H118 66.3oz 55ft/s 249ft/s 8.2G 794ft 6.9s 5s
OK Cesaroni H237 68.5oz 73ft/s 310ft/s 13.4G 879ft 7.0s 6s
OK AeroTech H220 66.9oz 76ft/s 308ft/s 15.5G 890ft 7.0s 6s
OK Cesaroni H151 66.5oz 63ft/s 287ft/s 10.0G 898ft 7.2s 6s
OK AeroTech H210 66.8oz 72ft/s 311ft/s 12.7G 905ft 7.1s 6s
OK KBA H130 83.1oz 55ft/s 261ft/s 8.5G 928ft 7.6s 6s
OK Cesaroni H135 67.0oz 57ft/s 289ft/s 7.9G 943ft 7.5s 6s
OK Cesaroni H170 66.3oz 67ft/s 306ft/s 11.9G 948ft 7.2s 6s
OK Cesaroni H160 67.7oz 60ft/s 307ft/s 8.8G 948ft 7.4s 6s
OK AeroTech H182 65.4oz 63ft/s 318ft/s 9.3G 951ft 7.3s 6s
OK AeroTech H180 67.0oz 70ft/s 323ft/s 12.6G 987ft 7.3s 6s
OK AeroTech H250 67.1oz 84ft/s 344ft/s 16.2G 1,004ft 7.3s 6s
OK AeroTech H135 65.6oz 55ft/s 291ft/s 7.4G 1,014ft 7.7s 6s
OK KBA H225 69.2oz 66ft/s 349ft/s 12.6G 1,036ft 7.5s 6s
OK AeroTech H195 65.0oz 75ft/s 347ft/s 13.1G 1,050ft 7.5s 6s
OK Cesaroni H295 70.2oz 84ft/s 373ft/s 17.0G 1,072ft 7.5s 7s
OK Cesaroni H180 69.2oz 69ft/s 345ft/s 13.1G 1,112ft 7.7s 6s
OK Cesaroni H194 68.1oz 73ft/s 352ft/s 13.9G 1,113ft 7.7s 6s
OK Cesaroni H200 67.8oz 71ft/s 357ft/s 14.4G 1,136ft 7.7s 6s
OK Cesaroni H140 67.9oz 66ft/s 333ft/s 12.0G 1,180ft 8.0s 6s
OK Cesaroni H255 66.3oz 83ft/s 395ft/s 19.4G 1,184ft 7.7s 7s
OK Cesaroni H340 71.9oz 94ft/s 415ft/s 21.2G 1,198ft 7.7s 7s
OK Cesaroni H399 68.5oz 105ft/s 430ft/s 27.7G 1,202ft 7.6s 7s
OK Cesaroni H159 70.2oz 61ft/s 368ft/s 8.5G 1,289ft 8.4s 6s
OK Cesaroni H226 70.8oz 81ft/s 399ft/s 16.8G 1,295ft 8.0s 7s
OK AeroTech H268 70.7oz 82ft/s 420ft/s 15.7G 1,302ft 8.0s 7s
OK Cesaroni H233 69.7oz 79ft/s 414ft/s 16.6G 1,326ft 8.1s 7s
OK Cesaroni H255 69.3oz 87ft/s 431ft/s 20.4G 1,345ft 8.1s 7s
OK Cesaroni H160 69.4oz 77ft/s 373ft/s 15.4G 1,355ft 8.4s 6s
OK AeroTech I200 70.7oz 76ft/s 403ft/s 14.4G 1,381ft 8.3s 7s
OK Cesaroni I204 70.4oz 82ft/s 426ft/s 17.3G 1,463ft 8.5s 7s
OK AeroTech I205 69.2oz 75ft/s 433ft/s 17.9G 1,470ft 8.5s 7s
OK Cesaroni I224 71.2oz 87ft/s 463ft/s 20.9G 1,574ft 8.6s 7s
OK Cesaroni I243 72.2oz 83ft/s 463ft/s 20.7G 1,579ft 8.6s 7s
OK KBA J520 83.6oz 104ft/s 731ft/s 29.7G 2,225ft 9.6s 8s

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 (7ft/s)
failedG AeroTech E23 speed at end of launch guide too slow (21ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (12ft/s)
failedG AeroTech F23 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (25ft/s)
failedG AeroTech F27 speed at end of launch guide too slow (22ft/s)
failed5 Estes F15 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG AeroTech F37 speed at end of launch guide too slow (27ft/s)
failedG AeroTech F62 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni F36 speed at end of launch guide too slow (26ft/s)
failedG AeroTech F20 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (22ft/s)
failedG AeroTech F42 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (20ft/s)
failedG Cesaroni F31 speed at end of launch guide too slow (22ft/s)
failedA Cesaroni F120 rocket doesn't reach a safe altitude (130ft)
failedG Cesaroni F59 speed at end of launch guide too slow (37ft/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 (21ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (18ft/s)
failedG AeroTech F52 speed at end of launch guide too slow (39ft/s)
failedG Apogee F10 speed at end of launch guide too slow (2ft/s)
failedG AeroTech F50 speed at end of launch guide too slow (37ft/s)
failedG Estes F50 speed at end of launch guide too slow (39ft/s)
failedG AeroTech F25 speed at end of launch guide too slow (30ft/s)
failedG AeroTech F40 speed at end of launch guide too slow (34ft/s)
failedG AeroTech G54 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G74 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G88 speed at end of launch guide too slow (43ft/s)
failedG AeroTech G38 speed at end of launch guide too slow (28ft/s)
failedG AeroTech G53 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G80 speed at end of launch guide too slow (41ft/s)
failedG Estes G40 speed at end of launch guide too slow (35ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (42ft/s)
failedG AeroTech G77 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G83 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G57 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G68 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (38ft/s)
failedG AeroTech G79 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G78 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G40 speed at end of launch guide too slow (35ft/s)
failedG AeroTech G25 speed at end of launch guide too slow (24ft/s)
failedG AeroTech G64 speed at end of launch guide too slow (47ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G80 speed at end of launch guide too slow (46ft/s)
failedG AeroTech G75 speed at end of launch guide too slow (37ft/s)
failed5 Estes G80 average thrust fails 5:1 thrust/weight ratio (4:1)
failedG Cesaroni G106 speed at end of launch guide too slow (46ft/s)
failedG KBA G82 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G33 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni G54 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni H54 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni H87 speed at end of launch guide too slow (46ft/s)
failedG AeroTech H97 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni H42 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni H53 speed at end of launch guide too slow (37ft/s)

G These simulations were run with a launch guide length of 7ft (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.

A The minimum altitude check is used to ensure that the rocket flies high enough to ensure time for a safe recovery. In addition, many barometric altimeters require a minimum altitude to detect lift-off. (The minimum altitude is 10m or 33ft for an A motor and doubles for each impulse class).

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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