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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 107 motors that fit and appear to have enough thrust (684 motors didn't fit). All motors had thrust curves available and 231 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:   Madcow 3inch DD Twitch
Owner: Kenneth B Weaver
Body Diameter: 3.00in
Dry Weight: 38.0oz
MMT Diameter: 38.0mm
MMT Length: 14.00in
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 46.5oz 175ft/s 215ft/s 6.6G 742ft 7.0s 5s
OK AeroTech G61 44.8oz 171ft/s 214ft/s 5.5G 761ft 7.2s 5s
OK AeroTech G67 45.1oz 178ft/s 226ft/s 6.3G 765ft 7.2s 6s
OK Loki G70 46.5oz 183ft/s 227ft/s 6.8G 818ft 7.4s 6s
OK AeroTech G339 44.4oz 0ft/s 280ft/s 29.6G 833ft 6.9s 6s
OK Loki G80 47.0oz 197ft/s 237ft/s 7.6G 835ft 7.3s 6s
OK Cesaroni G46 44.9oz 136ft/s 214ft/s 6.1G 866ft 8.1s 5s
OK Loki G94 46.5oz 216ft/s 252ft/s 9.2G 880ft 7.4s 6s
OK Cesaroni G69 44.9oz 168ft/s 251ft/s 5.9G 937ft 8.0s 6s
OK Cesaroni G79 46.0oz 184ft/s 266ft/s 6.2G 944ft 7.9s 6s
OK Cesaroni G185 44.6oz 291ft/s 305ft/s 15.5G 972ft 7.5s 7s
OK Loki G66 46.8oz 192ft/s 250ft/s 7.9G 982ft 8.0s 6s
OK Cesaroni G58 45.5oz 150ft/s 251ft/s 6.0G 1,001ft 8.4s 6s
OK AeroTech G69 45.1oz 179ft/s 272ft/s 5.6G 1,020ft 8.2s 6s
OK Cesaroni G60 45.3oz 173ft/s 268ft/s 5.8G 1,045ft 8.3s 6s
OK Cesaroni G115 44.9oz 222ft/s 311ft/s 9.5G 1,093ft 8.1s 7s
OK Cesaroni G78 44.9oz 183ft/s 288ft/s 9.4G 1,095ft 8.4s 7s
OK Cesaroni G50 45.7oz 138ft/s 256ft/s 4.5G 1,114ft 9.1s 6s
OK AeroTech H73 48.9oz 170ft/s 314ft/s 5.4G 1,416ft 9.6s 7s
OK Loki H100 49.8oz 229ft/s 367ft/s 9.3G 1,545ft 9.4s 7s
warningsW AeroTech H283 46.7oz 359ft/s 454ft/s 24.8G 1,590ft 9.0s 8s
OK AeroTech H148 48.9oz 266ft/s 424ft/s 13.3G 1,684ft 9.5s 8s
OK AeroTech H130 46.4oz 293ft/s 416ft/s 19.1G 1,700ft 9.4s 8s
OK AeroTech H669 46.9oz 533ft/s 534ft/s 84.0G 1,742ft 9.1s 9s
OK AeroTech H123 47.7oz 233ft/s 409ft/s 10.2G 1,834ft 10.1s 8s
OK AeroTech H100 47.2oz 222ft/s 416ft/s 8.7G 1,845ft 10.1s 8s
OK AeroTech H219 47.2oz 333ft/s 510ft/s 21.4G 1,864ft 9.6s 9s
OK Loki H144 49.9oz 287ft/s 448ft/s 16.9G 1,866ft 9.8s 8s
OK Loki H90 49.8oz 218ft/s 396ft/s 9.6G 1,870ft 10.3s 8s
OK Cesaroni H123 48.5oz 231ft/s 460ft/s 9.8G 1,874ft 10.1s 8s
OK Loki H125 50.1oz 261ft/s 431ft/s 13.8G 1,890ft 10.1s 8s
OK Cesaroni H143 50.2oz 240ft/s 472ft/s 10.4G 1,896ft 10.1s 8s
OK AeroTech H242 47.3oz 304ft/s 509ft/s 17.0G 1,956ft 9.9s 8s
OK Loki H160 49.8oz 316ft/s 484ft/s 19.8G 1,985ft 9.9s 8s
OK Cesaroni H400 48.0oz 425ft/s 588ft/s 32.3G 1,994ft 9.7s 9s
OK AeroTech H112 51.4oz 191ft/s 419ft/s 6.7G 2,071ft 11.0s 8s
OK Cesaroni H120 48.4oz 234ft/s 487ft/s 10.0G 2,090ft 10.6s 8s
OK Cesaroni H125 48.3oz 236ft/s 508ft/s 10.0G 2,134ft 10.6s 9s
OK Cesaroni H110 49.5oz 211ft/s 478ft/s 7.8G 2,140ft 10.8s 8s
OK Cesaroni H225 44.8oz 323ft/s 612ft/s 19.7G 2,186ft 10.1s 9s
OK Cesaroni H152 48.5oz 261ft/s 534ft/s 14.8G 2,205ft 10.5s 9s
OK AeroTech H178 49.4oz 269ft/s 564ft/s 14.3G 2,212ft 10.5s 9s
OK Cesaroni H100 49.5oz 205ft/s 486ft/s 7.6G 2,279ft 11.2s 8s
OK AeroTech H550 49.1oz 507ft/s 709ft/s 47.0G 2,320ft 10.0s 9s
OK AeroTech H550 49.4oz 501ft/s 699ft/s 46.5G 2,332ft 10.1s 10s
OK AeroTech H999 49.7oz 652ft/s 741ft/s 115.6G 2,350ft 10.0s 10s
warningsW Cesaroni H565 50.8oz 501ft/s 709ft/s 43.3G 2,355ft 10.2s 10s
OK AeroTech I218 51.1oz 324ft/s 603ft/s 19.2G 2,392ft 10.6s 9s
OK AeroTech H170 49.6oz 274ft/s 585ft/s 13.5G 2,437ft 10.9s 9s
OK AeroTech I180 51.6oz 342ft/s 560ft/s 24.3G 2,447ft 10.7s 9s
OK AeroTech I161 50.9oz 279ft/s 574ft/s 14.4G 2,516ft 11.0s 9s
OK Cesaroni I180 51.9oz 271ft/s 620ft/s 13.2G 2,538ft 11.1s 9s
OK AeroTech I245 50.9oz 391ft/s 644ft/s 28.2G 2,571ft 10.7s 9s
OK AeroTech I357 50.1oz 373ft/s 682ft/s 26.3G 2,582ft 10.7s 9s
OK AeroTech I225 55.1oz 302ft/s 630ft/s 16.7G 2,591ft 11.0s 9s
OK AeroTech I140 50.6oz 258ft/s 559ft/s 11.7G 2,602ft 11.3s 9s
OK AeroTech H45 50.9oz 169ft/s 391ft/s 5.0G 2,604ft 12.8s 7s
OK Cesaroni I566 51.6oz 489ft/s 803ft/s 42.3G 2,638ft 10.6s 10s
OK Cesaroni I212 54.8oz 288ft/s 654ft/s 15.1G 2,640ft 11.2s 10s
OK Cesaroni I800 54.1oz 572ft/s 885ft/s 57.3G 2,824ft 10.8s 10s
OK Cesaroni I345 51.9oz 374ft/s 783ft/s 26.0G 2,838ft 11.1s 10s
OK AeroTech I154 55.4oz 224ft/s 555ft/s 9.9G 2,843ft 12.1s 9s
OK AeroTech I1299 52.9oz 759ft/s 929ft/s 103.7G 2,846ft 10.7s 10s
OK Cesaroni I195 52.7oz 288ft/s 679ft/s 15.2G 2,884ft 11.6s 10s
OK AeroTech I285 55.4oz 364ft/s 733ft/s 23.6G 2,886ft 11.3s 10s
OK AeroTech I305 58.5oz 368ft/s 740ft/s 24.3G 2,954ft 11.3s 10s
OK Cesaroni I170 51.8oz 281ft/s 695ft/s 14.6G 2,958ft 11.7s 9s
OK Cesaroni I236 52.1oz 316ft/s 733ft/s 20.5G 2,964ft 11.5s 10s
OK Cesaroni I175 53.4oz 259ft/s 677ft/s 11.8G 2,982ft 11.8s 9s
OK AeroTech I300 53.6oz 371ft/s 770ft/s 30.3G 3,014ft 11.3s 10s
OK AeroTech I211 54.0oz 323ft/s 699ft/s 20.4G 3,029ft 11.6s 9s
OK Cesaroni I223 55.4oz 292ft/s 736ft/s 15.5G 3,035ft 11.7s 10s
OK AeroTech I195 58.2oz 324ft/s 684ft/s 21.4G 3,051ft 11.7s 9s
OK AeroTech I49 52.0oz 136ft/s 378ft/s 3.3G 3,141ft 15.1s 7s
OK Cesaroni I55 53.4oz 140ft/s 423ft/s 4.7G 3,157ft 14.7s 7s
OK Loki I316 57.0oz 415ft/s 780ft/s 30.7G 3,160ft 11.5s 10s
OK Cesaroni I287 59.3oz 325ft/s 810ft/s 19.3G 3,230ft 11.8s 10s
OK Loki I405 57.2oz 472ft/s 850ft/s 49.7G 3,233ft 11.4s 10s
OK Loki I210 57.0oz 351ft/s 731ft/s 26.9G 3,328ft 12.0s 10s
OK Cesaroni I285 55.8oz 337ft/s 838ft/s 21.8G 3,378ft 11.9s 10s
OK Loki I377 57.8oz 429ft/s 851ft/s 40.1G 3,389ft 11.8s 10s
OK Loki I430 57.0oz 401ft/s 932ft/s 32.6G 3,394ft 11.8s 11s
warningsW Loki I110 58.8oz 233ft/s 613ft/s 15.2G 3,416ft 12.9s 9s
OK Cesaroni I470 55.5oz 438ft/s 983ft/s 35.2G 3,427ft 11.6s 11s
OK AeroTech I366 57.6oz 404ft/s 891ft/s 29.7G 3,427ft 11.8s 10s
OK AeroTech I327 60.2oz 352ft/s 877ft/s 24.9G 3,433ft 11.9s 10s
OK Cesaroni I255 56.2oz 326ft/s 825ft/s 19.3G 3,439ft 12.1s 10s
OK AeroTech I364 61.9oz 365ft/s 861ft/s 23.1G 3,445ft 11.9s 10s
OK AMW I297 58.8oz 340ft/s 866ft/s 21.9G 3,467ft 12.0s 10s
OK Cesaroni I303 55.6oz 353ft/s 884ft/s 25.7G 3,507ft 12.0s 10s
OK AeroTech I435 56.3oz 473ft/s 977ft/s 47.4G 3,539ft 11.7s 10s
OK AeroTech I280 59.7oz 325ft/s 870ft/s 19.3G 3,560ft 12.2s 10s
OK Cesaroni I242 57.4oz 302ft/s 837ft/s 16.9G 3,608ft 12.4s 10s
OK AeroTech I284 57.6oz 401ft/s 911ft/s 29.3G 3,653ft 12.0s 10s
OK Cesaroni I350 65.6oz 345ft/s 905ft/s 21.0G 3,664ft 12.4s 11s
OK AeroTech I500 58.3oz 440ft/s 1,053ft/s 34.6G 3,727ft 11.9s 11s
OK AeroTech I600 59.2oz 505ft/s 1,078ft/s 49.0G 3,749ft 11.9s 11s
OK AeroTech J350 61.5oz 444ft/s 1,009ft/s 47.2G 3,844ft 12.1s 11s
OK AeroTech I350 59.7oz 400ft/s 1,026ft/s 28.3G 3,849ft 12.2s 11s
OK AeroTech J420 60.9oz 422ft/s 1,009ft/s 32.1G 3,858ft 12.3s 11s
OK AeroTech J340 58.4oz 392ft/s 995ft/s 36.1G 3,871ft 12.1s 10s
OK AeroTech I59 55.2oz 235ft/s 433ft/s 9.8G 3,899ft 15.3s 7s
OK Cesaroni J357 59.2oz 385ft/s 1,015ft/s 30.3G 3,937ft 12.3s 11s
OK AeroTech J425 60.3oz 375ft/s 1,091ft/s 25.5G 3,985ft 12.4s 11s
OK Cesaroni J285 59.0oz 351ft/s 946ft/s 21.1G 3,988ft 12.6s 10s
OK AeroTech J500 61.1oz 474ft/s 1,114ft/s 45.8G 4,076ft 12.2s 11s
OK AeroTech J270 60.6oz 325ft/s 963ft/s 20.2G 4,194ft 12.8s 10s

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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