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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 63 motors that fit and appear to have enough thrust (719 motors didn't fit, 9 motors failed safety checks). 70 motor had thrust curves available and 137 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:   umbrella
Owner: David Hall
Body Diameter: 3.00in
Dry Weight: 671g
MMT Diameter: 29.0mm
MMT Length: 20.0cm
CD: 0.60

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 E23 775g 50ft/s 100ft/s 4.0G 233ft 4.3s 3s
OK Cesaroni F36 775g 52ft/s 147ft/s 9.4G 348ft 5.0s 4s
OK AeroTech F37 780g 54ft/s 157ft/s 5.1G 439ft 5.7s 4s
OK AeroTech F27 751g 50ft/s 144ft/s 3.9G 439ft 5.8s 3s
OK Cesaroni F36 772g 54ft/s 171ft/s 4.7G 475ft 5.8s 4s
OK AeroTech F23 753g 53ft/s 153ft/s 5.6G 493ft 6.1s 4s
OK AeroTech F62 780g 67ft/s 191ft/s 7.3G 519ft 5.8s 5s
OK Cesaroni F31 773g 50ft/s 173ft/s 6.4G 529ft 6.3s 4s
OK Cesaroni F120 777g 102ft/s 220ft/s 17.8G 561ft 5.8s 5s
OK AeroTech F20 751g 54ft/s 165ft/s 5.5G 570ft 6.4s 4s
OK AeroTech F42 747g 69ft/s 192ft/s 8.4G 571ft 6.1s 5s
OK Cesaroni F59 770g 70ft/s 207ft/s 8.4G 574ft 6.1s 5s
OK AeroTech F50 756g 73ft/s 242ft/s 8.8G 758ft 6.8s 5s
OK AeroTech F25 761g 63ft/s 203ft/s 6.7G 769ft 7.2s 5s
OK AeroTech F52 793g 75ft/s 241ft/s 9.2G 783ft 7.0s 6s
OK AeroTech F40 797g 67ft/s 233ft/s 7.7G 843ft 7.3s 5s
warningsW Estes F50 755g 78ft/s 267ft/s 9.6G 878ft 7.2s 6s
OK AeroTech G54 808g 75ft/s 262ft/s 9.3G 882ft 7.3s 6s
OK Cesaroni G88 823g 82ft/s 296ft/s 13.4G 918ft 7.3s 6s
OK AeroTech G104 807g 95ft/s 302ft/s 14.4G 947ft 7.3s 6s
OK AeroTech G38 797g 58ft/s 244ft/s 5.8G 963ft 8.0s 5s
OK AeroTech G74 758g 81ft/s 315ft/s 11.1G 989ft 7.5s 6s
OK AeroTech G53 817g 77ft/s 281ft/s 9.8G 1,023ft 7.8s 6s
OK Cesaroni G80 814g 78ft/s 328ft/s 11.3G 1,061ft 7.8s 7s
OK AeroTech G77 836g 72ft/s 339ft/s 9.9G 1,138ft 8.1s 7s
warningsW Estes G40 794g 69ft/s 292ft/s 8.4G 1,145ft 8.3s 6s
OK AeroTech G40 794g 69ft/s 292ft/s 8.4G 1,145ft 8.3s 6s
OK AeroTech G77 794g 79ft/s 358ft/s 11.5G 1,176ft 8.1s 7s
OK AeroTech G79 828g 81ft/s 352ft/s 11.1G 1,210ft 8.2s 7s
OK Cesaroni G83 816g 83ft/s 357ft/s 11.5G 1,218ft 8.2s 7s
OK Cesaroni G68 827g 70ft/s 341ft/s 10.3G 1,225ft 8.4s 7s
OK AeroTech G79 795g 72ft/s 348ft/s 9.3G 1,231ft 8.4s 6s
OK Cesaroni G57 817g 77ft/s 327ft/s 10.0G 1,242ft 8.5s 7s
OK Cesaroni G250 812g 137ft/s 424ft/s 35.2G 1,247ft 7.9s 7s
OK AeroTech G76 818g 102ft/s 351ft/s 17.8G 1,317ft 8.4s 6s
OK Cesaroni G126 816g 102ft/s 411ft/s 18.9G 1,322ft 8.2s 7s
OK AeroTech G64 822g 89ft/s 346ft/s 12.4G 1,358ft 8.6s 6s
OK AeroTech G25 792g 51ft/s 265ft/s 4.5G 1,368ft 9.7s 5s
OK Cesaroni G131 871g 94ft/s 423ft/s 16.3G 1,382ft 8.4s 7s
OK AeroTech G75 802g 83ft/s 380ft/s 11.8G 1,384ft 8.6s 7s
OK AeroTech G78 796g 81ft/s 401ft/s 11.9G 1,411ft 8.6s 7s
OK AeroTech G125 796g 100ft/s 453ft/s 17.9G 1,438ft 8.4s 7s
OK AeroTech G80 799g 86ft/s 415ft/s 12.3G 1,490ft 8.8s 7s
OK Cesaroni G106 858g 85ft/s 450ft/s 14.6G 1,534ft 8.9s 8s
OK Cesaroni G33 868g 48ft/s 313ft/s 5.8G 1,634ft 10.7s 6s
OK AeroTech G75 904g 69ft/s 417ft/s 7.9G 1,664ft 9.6s 7s
OK AeroTech H165 873g 113ft/s 532ft/s 21.2G 1,740ft 9.1s 8s
OK Cesaroni G125 866g 101ft/s 509ft/s 18.0G 1,747ft 9.2s 8s
OK Cesaroni G118 859g 95ft/s 506ft/s 17.5G 1,755ft 9.3s 8s
OK Cesaroni H410 854g 181ft/s 619ft/s 61.4G 1,774ft 8.8s 8s
OK Cesaroni H133 861g 103ft/s 520ft/s 21.7G 1,787ft 9.2s 8s
OK Cesaroni H163 858g 111ft/s 556ft/s 24.8G 1,812ft 9.2s 8s
OK Cesaroni G54 864g 88ft/s 388ft/s 13.3G 1,822ft 9.9s 7s
OK AeroTech G138 819g 99ft/s 581ft/s 20.1G 1,837ft 9.2s 8s
OK AeroTech H128 877g 109ft/s 543ft/s 20.2G 1,845ft 9.3s 8s
OK Cesaroni H90 834g 92ft/s 493ft/s 18.0G 1,845ft 9.5s 8s
OK AeroTech H238 867g 126ft/s 577ft/s 26.7G 1,849ft 9.2s 8s
OK Cesaroni H87 876g 84ft/s 484ft/s 13.9G 1,861ft 9.7s 8s
OK Cesaroni H54 880g 79ft/s 399ft/s 10.7G 1,903ft 10.2s 7s
OK AeroTech H115 876g 90ft/s 538ft/s 13.3G 1,921ft 9.6s 8s
OK AeroTech H182 878g 109ft/s 690ft/s 20.8G 2,209ft 9.8s 9s
OK AeroTech H195 868g 133ft/s 743ft/s 28.9G 2,340ft 9.8s 9s
warningsW,D Estes G80 796g 10:1 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 (35ft/s)
failedG AeroTech E16 speed at end of launch guide too slow (40ft/s)
failedG Estes F15 speed at end of launch guide too slow (31ft/s)
failedG Cesaroni F32 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni F29 speed at end of launch guide too slow (45ft/s)
failed5 Estes F26 average thrust fails 5:1 thrust/weight ratio (4:1)
failedG AeroTech F26 speed at end of launch guide too slow (47ft/s)
failedG AeroTech F22 speed at end of launch guide too slow (42ft/s)
failedG Apogee F10 speed at end of launch guide too slow (36ft/s)

G These simulations were run with a launch guide length of 10ft (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).

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