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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 69 motors that fit and appear to have enough thrust (689 motors didn't fit, 33 motors failed safety checks). 100 motor had thrust curves available and 175 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:   Alpha Extreme 7.5
Owner: Jim Lane
Body Diameter: 7.68in
Dry Weight: 202.0oz
MMT Diameter: 54.0mm
MMT Length: 17.00in
CD: 0.39

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 I599 220.1oz 77ft/s 193ft/s 11.5G 543ft 5.9s 5s
OK Cesaroni I445 222.3oz 57ft/s 212ft/s 7.6G 680ft 6.8s 6s
OK AeroTech J315 232.0oz 48ft/s 280ft/s 4.8G 1,273ft 9.5s 7s
OK Cesaroni J1055 229.2oz 92ft/s 349ft/s 16.7G 1,325ft 8.7s 8s
OK Cesaroni J430 230.2oz 57ft/s 335ft/s 7.2G 1,475ft 9.7s 8s
OK AeroTech J460 229.8oz 60ft/s 344ft/s 7.7G 1,542ft 9.8s 8s
OK AeroTech J1299 231.4oz 104ft/s 403ft/s 21.8G 1,581ft 9.4s 9s
OK AMW J400 250.7oz 48ft/s 357ft/s 5.8G 1,706ft 10.6s 8s
OK AMW J1365 241.5oz 101ft/s 425ft/s 22.1G 1,714ft 9.7s 9s
OK AMW J475 251.7oz 55ft/s 391ft/s 7.8G 1,853ft 10.7s 9s
OK Gorilla J395 242.9oz 49ft/s 384ft/s 5.8G 1,887ft 11.1s 9s
OK Gorilla J465 243.7oz 54ft/s 402ft/s 8.6G 1,912ft 10.9s 9s
OK AeroTech J450 245.1oz 52ft/s 402ft/s 6.9G 1,945ft 11.0s 9s
OK AMW J395 246.7oz 54ft/s 386ft/s 5.8G 1,975ft 11.3s 9s
OK Gorilla J485 244.0oz 54ft/s 417ft/s 7.5G 1,998ft 11.1s 9s
OK AMW J325 245.4oz 55ft/s 358ft/s 6.9G 2,006ft 11.4s 8s
OK Gorilla J450 253.3oz 51ft/s 409ft/s 7.5G 2,021ft 11.3s 9s
OK AeroTech J1799 241.2oz 121ft/s 498ft/s 30.8G 2,028ft 10.2s 10s
OK Cesaroni J1520 238.2oz 109ft/s 498ft/s 24.2G 2,042ft 10.3s 10s
OK Gorilla J535 245.2oz 65ft/s 436ft/s 8.9G 2,081ft 11.0s 9s
OK AMW J440 245.4oz 73ft/s 421ft/s 10.8G 2,082ft 10.9s 9s
OK Loki J525 245.7oz 62ft/s 441ft/s 8.5G 2,090ft 11.1s 9s
OK AeroTech J401 234.2oz 54ft/s 418ft/s 6.4G 2,129ft 11.4s 9s
OK Loki J820 244.7oz 83ft/s 471ft/s 14.2G 2,152ft 10.8s 9s
OK AeroTech J540 240.2oz 66ft/s 446ft/s 9.0G 2,186ft 11.2s 9s
OK AMW K1720 249.7oz 114ft/s 528ft/s 27.2G 2,211ft 10.7s 10s
OK Cesaroni J355 243.4oz 50ft/s 405ft/s 5.4G 2,234ft 12.0s 9s
OK Loki J300 248.4oz 48ft/s 378ft/s 4.8G 2,247ft 12.4s 8s
OK Cesaroni J295 241.5oz 52ft/s 378ft/s 5.5G 2,268ft 12.2s 8s
OK AMW J745 245.0oz 76ft/s 488ft/s 11.8G 2,270ft 11.2s 10s
OK AMW J475 254.7oz 59ft/s 435ft/s 7.3G 2,270ft 11.7s 9s
OK Gorilla K222 258.3oz 49ft/s 318ft/s 4.9G 2,353ft 13.3s 7s
OK AeroTech J415 243.2oz 55ft/s 444ft/s 7.0G 2,417ft 12.1s 9s
OK AeroTech J800 240.3oz 79ft/s 508ft/s 13.2G 2,422ft 11.5s 10s
OK Cesaroni J449 241.6oz 58ft/s 466ft/s 7.4G 2,424ft 12.0s 9s
OK Cesaroni K360 245.5oz 48ft/s 437ft/s 4.8G 2,436ft 12.5s 9s
OK AeroTech K456 254.3oz 55ft/s 459ft/s 6.3G 2,436ft 12.2s 9s
OK Cesaroni J760 240.0oz 77ft/s 524ft/s 12.5G 2,445ft 11.5s 10s
OK AMW K665 263.3oz 63ft/s 504ft/s 10.2G 2,480ft 11.8s 10s
OK AeroTech K400 244.1oz 59ft/s 449ft/s 6.9G 2,510ft 12.3s 9s
OK Gorilla K520 252.9oz 57ft/s 498ft/s 7.4G 2,575ft 12.3s 10s
OK Cesaroni K454 251.1oz 55ft/s 476ft/s 6.8G 2,583ft 12.4s 9s
OK Gorilla K555 257.6oz 58ft/s 508ft/s 8.0G 2,591ft 12.3s 10s
OK AeroTech K2050 247.6oz 118ft/s 625ft/s 30.3G 2,632ft 11.4s 11s
OK Gorilla K630 257.0oz 65ft/s 526ft/s 10.1G 2,639ft 12.1s 10s
OK Cesaroni K530 259.8oz 57ft/s 510ft/s 7.0G 2,639ft 12.4s 10s
OK Cesaroni K2045 247.5oz 121ft/s 640ft/s 31.4G 2,666ft 11.4s 11s
OK KBA K700 255.0oz 69ft/s 559ft/s 11.5G 2,693ft 12.0s 10s
OK AMW K535 257.0oz 62ft/s 506ft/s 7.8G 2,695ft 12.5s 10s
OK AeroTech K535 246.6oz 65ft/s 509ft/s 8.3G 2,742ft 12.5s 10s
OK AeroTech K513 260.1oz 61ft/s 522ft/s 7.9G 2,746ft 12.5s 10s
OK AeroTech K695 254.5oz 71ft/s 559ft/s 11.9G 2,801ft 12.2s 10s
OK AMW K455 255.1oz 67ft/s 485ft/s 9.9G 2,808ft 12.7s 9s
OK AMW K935 255.2oz 83ft/s 613ft/s 14.2G 2,940ft 12.2s 11s
OK AeroTech K1100 249.1oz 92ft/s 632ft/s 18.3G 2,991ft 12.2s 10s
OK Cesaroni K500 254.1oz 60ft/s 539ft/s 7.5G 3,026ft 13.1s 10s
OK Cesaroni K400 256.7oz 53ft/s 499ft/s 5.7G 3,044ft 13.6s 10s
OK AeroTech K550 254.5oz 66ft/s 540ft/s 10.3G 3,048ft 12.9s 10s
OK AeroTech K540 247.0oz 69ft/s 554ft/s 11.5G 3,053ft 12.8s 10s
OK Cesaroni K940 250.2oz 82ft/s 647ft/s 14.9G 3,084ft 12.4s 11s
OK Cesaroni K445 251.3oz 65ft/s 523ft/s 8.5G 3,148ft 13.4s 10s
OK Cesaroni K630 251.7oz 68ft/s 603ft/s 10.3G 3,188ft 13.0s 10s
OK Cesaroni K520 257.6oz 61ft/s 568ft/s 7.6G 3,240ft 13.5s 10s
OK AeroTech K805 256.4oz 73ft/s 637ft/s 11.5G 3,257ft 13.0s 11s
OK AeroTech K1103 253.5oz 98ft/s 705ft/s 21.8G 3,345ft 12.6s 11s
OK Cesaroni K740 253.8oz 76ft/s 665ft/s 11.3G 3,476ft 13.2s 11s
OK Cesaroni K1200 259.6oz 95ft/s 770ft/s 18.0G 3,633ft 13.0s 11s
warningsD AMW K590 262.6oz 8:1 thrust/weight ratio (no data)
warningsD Gorilla K695 254.8oz 10:1 thrust/weight ratio (no data)

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 AeroTech I117 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (28ft/s)
failedG AeroTech I215 speed at end of launch guide too slow (40ft/s)
failedG AeroTech I229 speed at end of launch guide too slow (41ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (26ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni I218 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni I100 speed at end of launch guide too slow (36ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni J145 speed at end of launch guide too slow (38ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (46ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni J280 speed at end of launch guide too slow (42ft/s)
failedG AeroTech J250 speed at end of launch guide too slow (38ft/s)
failedG AeroTech J180 speed at end of launch guide too slow (45ft/s)
failedG AeroTech J275 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni J240 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni J210 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni J293 speed at end of launch guide too slow (43ft/s)
failedG Gorilla J365 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (38ft/s)
failedG Loki J350 speed at end of launch guide too slow (47ft/s)
failedG Gorilla J167 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni J360 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni J380 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (35ft/s)
failedG Loki J175 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni K160 speed at end of launch guide too slow (37ft/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.)

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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