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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 73 motors that fit and appear to have enough thrust (732 motors didn't fit). All motors had thrust curves available and 155 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:   Zephry
Owner: Chad F. Patten
Body Diameter: 10.2cm
Dry Weight: 38.7oz
MMT Diameter: 38.0mm
MMT Length: 27.9cm
CD: 0.75

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 Loki G69 47.1oz 31m/s 62m/s 6.5G 187m 6.3s 5s
OK AeroTech G61 45.5oz 29m/s 61m/s 5.3G 191m 6.5s 4s
OK AeroTech G67 45.7oz 30m/s 65m/s 6.1G 192m 6.5s 5s
OK AeroTech G339 45.0oz 65m/s 83m/s 29.1G 202m 6.0s 6s
OK Loki G70 47.2oz 32m/s 65m/s 6.7G 204m 6.6s 5s
OK Loki G80 47.7oz 34m/s 68m/s 7.5G 208m 6.5s 5s
OK Loki G94 47.1oz 37m/s 72m/s 9.0G 217m 6.5s 5s
OK Cesaroni G46 45.6oz 24m/s 60m/s 5.9G 217m 7.3s 5s
OK Cesaroni G69 45.6oz 28m/s 71m/s 5.8G 230m 7.0s 5s
OK Cesaroni G79 46.6oz 28m/s 76m/s 5.9G 231m 7.0s 5s
OK Cesaroni G185 45.3oz 47m/s 89m/s 15.0G 233m 6.5s 6s
OK Loki G66 47.5oz 34m/s 71m/s 7.8G 241m 7.1s 5s
OK Cesaroni G58 46.2oz 24m/s 70m/s 5.9G 246m 7.5s 5s
OK AeroTech G69 45.7oz 29m/s 77m/s 5.3G 248m 7.2s 5s
OK Cesaroni G60 45.9oz 29m/s 75m/s 5.7G 254m 7.3s 5s
OK Cesaroni G115 45.5oz 36m/s 89m/s 9.4G 261m 7.0s 6s
OK Cesaroni G78 45.6oz 30m/s 81m/s 9.3G 264m 7.3s 5s
OK Cesaroni G50 46.3oz 23m/s 70m/s 4.4G 273m 8.1s 5s
OK AeroTech H73 49.6oz 27m/s 86m/s 5.1G 336m 8.4s 5s
warningsW AeroTech H283 47.4oz 60m/s 131m/s 24.1G 356m 7.4s 7s
OK Loki H100 50.5oz 37m/s 103m/s 8.8G 358m 8.0s 6s
OK AeroTech H669 47.5oz 94m/s 157m/s 82.8G 382m 7.4s 7s
OK AeroTech H148 49.6oz 44m/s 118m/s 13.0G 382m 8.0s 7s
OK AeroTech H130 47.0oz 53m/s 114m/s 18.8G 383m 7.8s 6s
OK AeroTech H219 47.9oz 56m/s 143m/s 21.1G 411m 7.9s 7s
OK AeroTech H123 48.4oz 38m/s 111m/s 10.0G 416m 8.5s 6s
OK AeroTech H100 47.9oz 36m/s 112m/s 8.4G 418m 8.5s 6s
OK Loki H144 50.5oz 49m/s 124m/s 16.7G 420m 8.2s 7s
OK Cesaroni H123 49.1oz 36m/s 127m/s 9.6G 422m 8.5s 7s
OK Cesaroni H143 50.9oz 37m/s 131m/s 9.8G 426m 8.5s 7s
OK Loki H125 50.7oz 44m/s 118m/s 13.6G 427m 8.4s 6s
OK Loki H90 50.5oz 37m/s 107m/s 9.4G 428m 8.7s 6s
OK AeroTech H242 48.0oz 50m/s 142m/s 16.7G 432m 8.2s 7s
OK Cesaroni H400 48.7oz 68m/s 170m/s 31.1G 433m 7.9s 7s
OK Loki H160 50.5oz 54m/s 134m/s 19.6G 441m 8.2s 7s
OK Cesaroni H120 49.1oz 38m/s 132m/s 9.8G 467m 8.8s 7s
OK Cesaroni H225 45.5oz 53m/s 169m/s 19.4G 472m 8.2s 7s
OK AeroTech H112 52.0oz 31m/s 111m/s 6.6G 473m 9.4s 6s
OK Cesaroni H125 49.0oz 38m/s 138m/s 9.6G 474m 8.8s 7s
OK Cesaroni H110 50.1oz 34m/s 129m/s 7.5G 481m 9.1s 6s
OK AeroTech H178 50.1oz 42m/s 155m/s 13.2G 485m 8.6s 7s
OK Cesaroni H152 49.2oz 42m/s 145m/s 14.5G 486m 8.7s 7s
OK AeroTech H550 49.8oz 85m/s 203m/s 45.9G 491m 8.1s 7s
OK AeroTech H999 50.3oz 111m/s 216m/s 114.1G 495m 8.0s 8s
OK AeroTech H550 50.1oz 84m/s 200m/s 45.4G 495m 8.1s 8s
warningsW Cesaroni H565 51.4oz 81m/s 205m/s 42.4G 500m 8.2s 8s
OK Cesaroni H100 50.2oz 34m/s 128m/s 7.5G 511m 9.4s 7s
OK AeroTech I218 51.8oz 53m/s 165m/s 18.8G 520m 8.7s 7s
OK AeroTech H170 50.3oz 44m/s 157m/s 13.3G 533m 8.9s 7s
OK AeroTech I180 52.2oz 61m/s 151m/s 24.0G 535m 8.7s 7s
OK AeroTech I161 51.6oz 45m/s 153m/s 14.1G 551m 9.1s 7s
OK AeroTech I245 51.5oz 65m/s 174m/s 27.5G 552m 8.7s 7s
OK AeroTech I357 50.8oz 62m/s 187m/s 25.9G 553m 8.6s 7s
OK Cesaroni I180 52.6oz 43m/s 169m/s 12.4G 553m 9.1s 7s
OK Cesaroni I566 52.2oz 78m/s 229m/s 40.5G 554m 8.5s 8s
OK AeroTech I225 55.8oz 47m/s 171m/s 15.8G 563m 9.0s 7s
OK AeroTech I140 51.2oz 42m/s 146m/s 11.4G 571m 9.4s 7s
OK Cesaroni I212 55.4oz 45m/s 177m/s 14.0G 572m 9.1s 7s
OK AeroTech I1299 53.5oz 124m/s 270m/s 99.9G 587m 8.4s 8s
OK AeroTech H45 51.5oz 28m/s 101m/s 4.9G 597m 11.1s 5s
OK Cesaroni I345 52.6oz 61m/s 215m/s 25.7G 601m 8.9s 8s
OK AeroTech I285 56.0oz 59m/s 199m/s 23.1G 617m 9.1s 8s
OK Cesaroni I195 53.4oz 47m/s 180m/s 14.8G 623m 9.4s 7s
OK AeroTech I154 56.0oz 37m/s 144m/s 9.7G 631m 10.1s 7s
OK Cesaroni I236 52.8oz 52m/s 196m/s 20.2G 634m 9.2s 7s
OK Cesaroni I170 52.5oz 46m/s 184m/s 14.4G 638m 9.5s 7s
OK AeroTech I300 54.2oz 62m/s 207m/s 29.9G 641m 9.1s 8s
OK Cesaroni I175 54.1oz 42m/s 178m/s 11.5G 647m 9.7s 7s
OK AeroTech I211 54.7oz 53m/s 184m/s 20.0G 652m 9.4s 7s
OK Cesaroni I55 54.1oz 23m/s 105m/s 4.7G 724m 12.8s 6s
OK AeroTech I49 52.7oz 22m/s 92m/s 3.1G 725m 13.3s 5s
OK Cesaroni J357 59.9oz 62m/s 265m/s 29.9G 826m 9.9s 8s
OK AeroTech I59 55.8oz 37m/s 120m/s 9.5G 885m 13.4s 5s

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

Don't like the units? Login to set your preferences. Don't understand the results? See the motor guide help page.

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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