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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 177 motors that fit and appear to have enough thrust (618 motors didn't fit, 16 motors failed safety checks). 190 motor had thrust curves available and 345 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:   One Butt-Ugly Phoenix
Owner: Tim Scott
Body Diameter: 4.00in
Dry Weight: 6.00lb
MMT Diameter: 54.0mm
MMT Length: 48.00in
CD: 0.75
Web Site:

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 I215 7.16lb 50ft/s 328ft/s 7.2G 1,399ft 9.5s 8s
OK AeroTech I599 7.13lb 91ft/s 390ft/s 23.2G 1,482ft 9.0s 8s
OK AeroTech I229 7.13lb 50ft/s 349ft/s 7.6G 1,492ft 9.6s 8s
OK Cesaroni I445 7.27lb 68ft/s 430ft/s 15.4G 1,773ft 9.9s 9s
OK Cesaroni I218 7.28lb 52ft/s 387ft/s 7.2G 1,827ft 10.6s 8s
OK Contrail J245 9.42lb 55ft/s 387ft/s 9.5G 2,047ft 11.3s 9s
OK Contrail J355 9.45lb 66ft/s 445ft/s 12.3G 2,193ft 11.4s 9s
OK Cesaroni I100 7.78lb 48ft/s 303ft/s 7.8G 2,314ft 13.1s 4s
OK Hypertek J250 8.85lb 58ft/s 424ft/s 9.4G 2,351ft 11.8s 9s
OK Contrail J292 9.40lb 67ft/s 433ft/s 12.2G 2,427ft 12.0s 10s
OK Hypertek J170 8.83lb 53ft/s 391ft/s 7.9G 2,467ft 12.5s 8s
OK AeroTech J250 8.00lb 49ft/s 501ft/s 7.5G 2,605ft 12.3s 10s
OK Cesaroni J280 8.10lb 50ft/s 524ft/s 7.8G 2,621ft 12.2s 10s
OK Cesaroni J145 7.85lb 50ft/s 392ft/s 12.9G 2,639ft 12.9s 8s
OK AeroTech J250 7.56lb 56ft/s 496ft/s 9.0G 2,692ft 12.2s 9s
OK Cesaroni J1055 7.70lb 104ft/s 668ft/s 32.2G 2,714ft 11.4s 11s
OK Hypertek J270 8.86lb 66ft/s 477ft/s 11.5G 2,753ft 12.5s 9s
OK AeroTech J315 7.88lb 57ft/s 544ft/s 9.7G 2,804ft 12.4s 10s
OK Hypertek J190 8.85lb 56ft/s 445ft/s 8.7G 2,891ft 13.3s 8s
OK AeroTech J180 7.78lb 56ft/s 476ft/s 8.4G 3,014ft 13.1s 8s
OK Cesaroni J240 7.93lb 49ft/s 541ft/s 7.2G 3,020ft 13.1s 10s
OK Gorilla J365 8.65lb 48ft/s 603ft/s 11.8G 3,026ft 12.8s 10s
OK Contrail J358 9.84lb 70ft/s 526ft/s 15.6G 3,028ft 13.0s 10s
OK Cesaroni J430 7.76lb 69ft/s 640ft/s 14.1G 3,038ft 12.4s 10s
OK AeroTech J1299 7.84lb 119ft/s 758ft/s 41.3G 3,047ft 11.8s 11s
OK AeroTech J275 7.91lb 52ft/s 543ft/s 8.4G 3,103ft 13.1s 9s
OK AeroTech J460 7.74lb 73ft/s 650ft/s 15.0G 3,103ft 12.4s 10s
OK Cesaroni J293 7.85lb 54ft/s 585ft/s 9.2G 3,103ft 13.0s 10s
OK Cesaroni J210 7.86lb 52ft/s 497ft/s 8.4G 3,177ft 13.7s 10s
OK AMW J1365 8.47lb 116ft/s 774ft/s 40.6G 3,224ft 12.1s 11s
OK AMW J400 9.05lb 56ft/s 650ft/s 10.6G 3,351ft 13.2s 11s
OK Loki J350 8.78lb 56ft/s 649ft/s 10.5G 3,392ft 13.3s 11s
OK Gorilla J167 8.68lb 51ft/s 461ft/s 8.6G 3,485ft 14.6s 9s
OK AMW J475 9.11lb 64ft/s 700ft/s 14.1G 3,499ft 13.2s 11s
OK Contrail J642 9.95lb 97ft/s 680ft/s 32.0G 3,552ft 13.2s 11s
OK AeroTech J1799 8.45lb 134ft/s 909ft/s 56.4G 3,564ft 12.3s 12s
OK Cesaroni J360 8.43lb 55ft/s 682ft/s 13.4G 3,592ft 13.6s 11s
OK Cesaroni J1520 8.26lb 122ft/s 917ft/s 44.6G 3,606ft 12.4s 12s
OK Gorilla J465 8.61lb 63ft/s 728ft/s 15.8G 3,607ft 13.3s 11s
OK Contrail J272 9.85lb 67ft/s 541ft/s 12.0G 3,607ft 14.3s 10s
OK Cesaroni J380 8.85lb 55ft/s 699ft/s 9.6G 3,619ft 13.6s 11s
OK Gorilla J395 8.56lb 56ft/s 701ft/s 10.9G 3,641ft 13.6s 11s
OK AeroTech J450 8.70lb 63ft/s 725ft/s 12.8G 3,684ft 13.5s 11s
OK Gorilla J485 8.62lb 63ft/s 753ft/s 14.0G 3,725ft 13.4s 11s
OK AMW J395 8.80lb 61ft/s 693ft/s 11.0G 3,752ft 13.8s 11s
OK Gorilla J450 9.21lb 55ft/s 725ft/s 13.7G 3,772ft 13.8s 11s
OK Gorilla J535 8.70lb 77ft/s 781ft/s 16.5G 3,777ft 13.3s 11s
OK Loki J820 8.67lb 97ft/s 839ft/s 26.0G 3,788ft 12.9s 11s
OK AMW J440 8.71lb 86ft/s 748ft/s 19.8G 3,792ft 13.3s 11s
OK Loki J525 8.73lb 72ft/s 791ft/s 15.5G 3,804ft 13.4s 11s
OK Contrail J416 9.75lb 77ft/s 640ft/s 17.1G 3,817ft 14.1s 11s
OK AMW K1720 8.98lb 132ft/s 938ft/s 48.8G 3,833ft 12.8s 12s
OK AMW J325 8.71lb 65ft/s 637ft/s 13.0G 3,834ft 14.0s 11s
OK AeroTech J540 8.39lb 77ft/s 798ft/s 17.1G 3,896ft 13.3s 11s
OK AeroTech J401 8.01lb 66ft/s 760ft/s 12.5G 3,924ft 13.6s 11s
OK AMW J745 8.69lb 86ft/s 866ft/s 21.6G 4,000ft 13.4s 12s
OK AMW J475 9.29lb 69ft/s 758ft/s 13.2G 4,092ft 14.1s 11s
OK Cesaroni J355 8.59lb 59ft/s 721ft/s 10.4G 4,112ft 14.3s 11s
OK AeroTech J800 8.39lb 95ft/s 901ft/s 24.5G 4,152ft 13.4s 11s
OK Loki J175 8.76lb 56ft/s 549ft/s 9.8G 4,181ft 15.3s 9s
OK Cesaroni J760 8.37lb 90ft/s 936ft/s 23.2G 4,193ft 13.4s 12s
OK Loki J300 8.90lb 58ft/s 667ft/s 9.2G 4,217ft 14.8s 11s
OK Cesaroni J295 8.47lb 61ft/s 669ft/s 10.6G 4,226ft 14.6s 11s
OK AMW K665 9.83lb 71ft/s 863ft/s 17.8G 4,248ft 13.9s 12s
OK AeroTech J415 8.58lb 65ft/s 782ft/s 13.0G 4,278ft 14.1s 11s
OK Cesaroni J449 8.47lb 67ft/s 826ft/s 13.9G 4,286ft 14.1s 11s
OK AeroTech K456 9.27lb 64ft/s 800ft/s 11.6G 4,294ft 14.3s 11s
OK AeroTech K2050 8.85lb 135ft/s 1,110ft/s 54.4G 4,299ft 13.2s 12s
OK Cesaroni K2045 8.84lb 142ft/s 1,143ft/s 56.7G 4,320ft 13.1s 12s
OK Cesaroni K360 8.72lb 57ft/s 773ft/s 9.1G 4,387ft 14.6s 11s
OK Gorilla K555 9.48lb 66ft/s 877ft/s 14.3G 4,473ft 14.4s 12s
OK AeroTech K400 8.63lb 71ft/s 781ft/s 13.0G 4,474ft 14.6s 11s
OK Gorilla K520 9.18lb 65ft/s 862ft/s 13.4G 4,476ft 14.5s 12s
OK Gorilla K630 9.44lb 73ft/s 902ft/s 17.8G 4,488ft 14.2s 12s
OK Cesaroni K454 9.07lb 63ft/s 824ft/s 12.6G 4,493ft 14.5s 11s
OK Cesaroni K530 9.62lb 64ft/s 879ft/s 12.4G 4,500ft 14.4s 12s
OK Gorilla K222 9.52lb 56ft/s 565ft/s 9.0G 4,506ft 16.0s 9s
OK KBA K700 9.31lb 85ft/s 963ft/s 20.1G 4,523ft 14.0s 12s
OK Gorilla K533 9.78lb 63ft/s 854ft/s 15.3G 4,525ft 14.5s 12s
OK AMW K475 9.29lb 66ft/s 846ft/s 12.2G 4,537ft 14.6s 12s
OK AeroTech K695 9.28lb 80ft/s 955ft/s 21.3G 4,616ft 14.1s 12s
OK AeroTech K513 9.63lb 68ft/s 887ft/s 14.1G 4,617ft 14.4s 12s
OK AMW K535 9.44lb 72ft/s 863ft/s 14.1G 4,620ft 14.6s 12s
OK AeroTech K535 8.79lb 77ft/s 873ft/s 15.4G 4,635ft 14.3s 11s
OK AMW K610 9.89lb 71ft/s 899ft/s 16.0G 4,759ft 14.7s 12s
OK AeroTech K1100 8.95lb 108ft/s 1,086ft/s 32.7G 4,783ft 13.9s 12s
OK AMW K455 9.32lb 80ft/s 815ft/s 17.7G 4,791ft 14.8s 12s
OK AMW K935 9.32lb 100ft/s 1,046ft/s 25.2G 4,794ft 14.1s 12s
OK AeroTech K185 9.16lb 49ft/s 608ft/s 7.2G 4,810ft 16.3s 9s
OK AMW K700 10.60lb 75ft/s 960ft/s 16.5G 4,893ft 14.7s 12s
OK Loki K690 11.29lb 71ft/s 961ft/s 15.7G 4,915ft 14.9s 13s
OK Cesaroni K940 9.01lb 92ft/s 1,110ft/s 26.6G 4,928ft 14.1s 12s
OK AeroTech K540 8.81lb 82ft/s 935ft/s 20.9G 4,957ft 14.4s 11s
OK AMW K855 10.68lb 84ft/s 1,027ft/s 20.6G 4,991ft 14.6s 13s
OK AeroTech K550 9.28lb 76ft/s 905ft/s 18.3G 4,996ft 14.7s 11s
OK Cesaroni K500 9.25lb 69ft/s 908ft/s 13.7G 5,019ft 15.0s 12s
OK Contrail K321 10.50lb 51ft/s 699ft/s 14.2G 5,070ft 16.3s 11s
OK Gorilla K700 9.78lb 73ft/s 1,017ft/s 17.4G 5,107ft 14.9s 13s
OK Cesaroni K630 9.11lb 80ft/s 1,019ft/s 18.5G 5,115ft 14.6s 12s
OK Cesaroni K515 9.65lb 70ft/s 915ft/s 14.8G 5,122ft 15.1s 12s
OK Gorilla K763 9.95lb 76ft/s 1,050ft/s 18.9G 5,130ft 14.8s 13s
OK Cesaroni K650 10.39lb 70ft/s 1,017ft/s 14.3G 5,149ft 15.0s 12s
OK Cesaroni K400 9.42lb 61ft/s 839ft/s 10.4G 5,154ft 15.6s 12s
OK Gorilla K805 9.91lb 78ft/s 1,063ft/s 23.7G 5,179ft 14.7s 13s
OK AeroTech K805 9.40lb 85ft/s 1,069ft/s 20.4G 5,200ft 14.6s 12s
OK AeroTech K1103 9.22lb 110ft/s 1,194ft/s 38.3G 5,200ft 14.2s 13s
OK Contrail K555 10.49lb 76ft/s 844ft/s 28.4G 5,208ft 15.4s 12s
OK Cesaroni K445 9.08lb 76ft/s 871ft/s 15.5G 5,220ft 15.2s 11s
OK Gorilla K327 10.01lb 64ft/s 720ft/s 14.4G 5,245ft 15.9s 10s
OK AeroTech K850 10.50lb 84ft/s 1,119ft/s 21.9G 5,264ft 14.7s 13s
OK AeroTech K990 10.65lb 81ft/s 1,110ft/s 21.2G 5,276ft 14.8s 13s
OK Cesaroni K520 9.47lb 73ft/s 948ft/s 13.6G 5,289ft 15.2s 12s
OK AMW K710 9.99lb 87ft/s 1,001ft/s 18.9G 5,308ft 15.0s 12s
OK AMW K670 10.16lb 82ft/s 1,012ft/s 17.5G 5,344ft 15.1s 13s
OK AMW K1250 10.00lb 106ft/s 1,215ft/s 35.3G 5,430ft 14.6s 13s
OK Cesaroni K740 9.24lb 90ft/s 1,109ft/s 20.3G 5,465ft 14.8s 12s
OK Loki K960 9.85lb 113ft/s 1,169ft/s 34.2G 5,487ft 14.7s 13s
OK AMW K580 10.02lb 87ft/s 959ft/s 23.2G 5,523ft 15.3s 12s
OK Cesaroni K1200 9.60lb 107ft/s 1,286ft/s 31.2G 5,537ft 14.5s 13s
OK Contrail K265 10.00lb 60ft/s 680ft/s 9.6G 5,641ft 17.3s 11s
OK Loki K250 9.95lb 70ft/s 673ft/s 17.1G 5,652ft 17.3s 10s
OK AeroTech K1275 10.38lb 111ft/s 1,242ft/s 33.2G 5,658ft 14.7s 13s
OK Cesaroni K635 9.90lb 79ft/s 1,057ft/s 16.5G 5,714ft 15.4s 12s
OK AeroTech K828 10.90lb 95ft/s 1,147ft/s 26.0G 5,715ft 15.1s 13s
OK Cesaroni K675 10.28lb 75ft/s 1,055ft/s 18.8G 5,718ft 15.4s 12s
OK Cesaroni K650 9.77lb 84ft/s 1,071ft/s 27.3G 5,722ft 15.2s 12s
OK Gorilla K980 11.42lb 85ft/s 1,146ft/s 24.8G 5,747ft 15.4s 13s
OK Cesaroni K780 9.75lb 87ft/s 1,186ft/s 22.1G 5,851ft 15.1s 12s
OK Loki K527 10.35lb 73ft/s 985ft/s 15.5G 5,879ft 16.0s 12s
OK Cesaroni K490 10.09lb 66ft/s 963ft/s 12.1G 5,931ft 16.1s 12s
OK AMW K1075 11.82lb 91ft/s 1,197ft/s 24.1G 6,005ft 15.7s 14s
OK Cesaroni K570 9.71lb 84ft/s 1,025ft/s 19.8G 6,008ft 15.6s 12s
OK Cesaroni K1440 10.17lb 120ft/s 1,409ft/s 40.8G 6,018ft 14.8s 13s
OK Cesaroni K600 10.17lb 75ft/s 1,058ft/s 16.2G 6,046ft 15.8s 12s
OK KBA K1750 11.65lb 116ft/s 1,436ft/s 39.9G 6,097ft 15.2s 14s
OK Cesaroni K815 10.84lb 81ft/s 1,200ft/s 23.9G 6,144ft 15.6s 13s
OK AeroTech K700 10.49lb 87ft/s 1,103ft/s 21.9G 6,165ft 15.5s 12s
OK Cesaroni K750 10.53lb 79ft/s 1,161ft/s 19.5G 6,201ft 15.6s 12s
OK Gorilla K1075 11.60lb 89ft/s 1,263ft/s 23.1G 6,255ft 15.7s 14s
OK Loki K830 11.29lb 72ft/s 1,286ft/s 17.1G 6,304ft 16.0s 13s
OK Cesaroni K820 10.37lb 94ft/s 1,214ft/s 34.9G 6,335ft 15.6s 13s
OK Cesaroni K711 10.85lb 84ft/s 1,123ft/s 30.4G 6,367ft 15.9s 13s
OK Gorilla K1185 11.60lb 85ft/s 1,335ft/s 25.7G 6,380ft 15.8s 14s
OK AMW K1130 11.67lb 98ft/s 1,278ft/s 27.8G 6,401ft 15.8s 14s
OK AeroTech K480 10.58lb 83ft/s 1,028ft/s 18.4G 6,420ft 16.2s 11s
OK AeroTech K1050 10.86lb 105ft/s 1,325ft/s 29.6G 6,429ft 15.6s 13s
OK KBA L2300 11.80lb 132ft/s 1,582ft/s 54.8G 6,481ft 15.4s 14s
OK Cesaroni K261 10.26lb 49ft/s 752ft/s 6.8G 6,489ft 18.3s 9s
OK AeroTech K270 10.63lb 54ft/s 733ft/s 8.0G 6,550ft 18.5s 10s
OK KBA K750 11.81lb 89ft/s 1,149ft/s 21.6G 6,571ft 16.2s 13s
OK Cesaroni K660 10.30lb 93ft/s 1,148ft/s 22.7G 6,584ft 16.0s 12s
OK AeroTech K375 10.64lb 103ft/s 877ft/s 27.1G 6,611ft 16.9s 11s
OK AMW L1276 12.53lb 94ft/s 1,349ft/s 25.0G 6,676ft 16.2s 14s
OK AeroTech K455 11.04lb 95ft/s 915ft/s 25.5G 6,692ft 16.9s 12s
OK AeroTech L1000 10.84lb 99ft/s 1,344ft/s 26.5G 6,697ft 15.6s 13s
OK AeroTech L1090 11.36lb 94ft/s 1,305ft/s 25.2G 6,738ft 16.0s 13s
OK Cesaroni K590 10.40lb 115ft/s 1,009ft/s 38.3G 6,752ft 16.3s 12s
OK Loki L1400 11.60lb 105ft/s 1,480ft/s 31.7G 6,780ft 15.7s 14s
OK AMW L985 11.67lb 100ft/s 1,279ft/s 27.3G 6,785ft 16.2s 14s
OK Cesaroni L1030 11.15lb 93ft/s 1,372ft/s 30.1G 6,800ft 15.8s 13s
OK Gorilla K470 11.13lb 84ft/s 953ft/s 20.3G 6,821ft 16.8s 12s
OK Cesaroni L990 10.93lb 100ft/s 1,346ft/s 32.5G 6,840ft 15.8s 13s
OK Cesaroni L730 10.95lb 95ft/s 1,208ft/s 24.0G 7,095ft 16.4s 13s
OK Cesaroni L805 11.52lb 93ft/s 1,241ft/s 27.8G 7,100ft 16.4s 13s
OK Cesaroni K260 10.51lb 55ft/s 787ft/s 8.2G 7,135ft 18.8s 10s
OK Loki K350 11.60lb 82ft/s 849ft/s 22.7G 7,370ft 18.5s 12s
OK Cesaroni L935 11.60lb 99ft/s 1,349ft/s 28.9G 7,378ft 16.4s 13s
OK Cesaroni L640 10.95lb 100ft/s 1,080ft/s 29.9G 7,388ft 16.8s 12s
OK Cesaroni K300 11.00lb 61ft/s 854ft/s 10.1G 7,596ft 18.9s 11s
OK AeroTech K250 10.88lb 50ft/s 824ft/s 8.0G 7,756ft 19.6s 9s
OK Cesaroni L265 11.47lb 53ft/s 797ft/s 8.1G 8,044ft 20.5s 10s
OK Loki L1040 12.53lb 96ft/s 1,508ft/s 22.9G 8,344ft 17.3s 14s
OK Loki L2050 14.94lb 128ft/s 1,848ft/s 47.0G 8,971ft 17.3s 15s
OK Loki M1378 15.55lb 107ft/s 1,720ft/s 32.7G 10,110ft 18.4s 14s
warningsD AMW K590 9.79lb 14:1 thrust/weight ratio (no data)
warningsD Gorilla K695 9.30lb 17:1 thrust/weight ratio (no data)
warningsD Gorilla K828 10.05lb 19:1 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 (33ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (36ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (34ft/s)
failedG AeroTech I170 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni I165 speed at end of launch guide too slow (43ft/s)
failedG AeroTech I65 speed at end of launch guide too slow (41ft/s)
failedG Hypertek J115 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni J250 speed at end of launch guide too slow (45ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (35ft/s)
failedG Hypertek J120 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni J244 speed at end of launch guide too slow (47ft/s)
failedG AeroTech J135 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni K160 speed at end of launch guide too slow (45ft/s)

G These simulations were run with a launch guide length of 6ft (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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