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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 185 motors that fit and appear to have enough thrust (606 motors didn't fit, 7 motors failed safety checks). 189 motor had thrust curves available and 341 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:   Kestrel
Owner: KenRico
Body Diameter: 2.10in
Dry Weight: 5.75lb
MMT Diameter: 54.0mm
MMT Length: 100.00in
CD: 0.42

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 6.91lb 60ft/s 365ft/s 7.5G 2,191ft 12.4s 11s
OK AeroTech I170 6.91lb 52ft/s 357ft/s 5.9G 2,215ft 12.7s 10s
OK AeroTech I229 6.88lb 59ft/s 388ft/s 8.1G 2,401ft 12.8s 11s
OK AeroTech I599 6.88lb 109ft/s 416ft/s 24.2G 2,461ft 12.4s 12s
OK Cesaroni I445 7.02lb 80ft/s 468ft/s 16.4G 3,116ft 14.0s 13s
OK Cesaroni I218 7.03lb 61ft/s 443ft/s 7.5G 3,133ft 14.6s 12s
OK Cesaroni I165 7.06lb 50ft/s 431ft/s 5.1G 3,244ft 15.3s 12s
OK Contrail J245 9.17lb 64ft/s 438ft/s 9.8G 3,305ft 15.0s 12s
OK Hypertek J115 8.58lb 50ft/s 383ft/s 5.2G 3,539ft 16.7s 10s
OK Contrail J355 9.20lb 75ft/s 492ft/s 12.7G 3,715ft 15.6s 14s
OK Cesaroni I100 7.53lb 55ft/s 384ft/s 8.1G 3,885ft 17.3s 8s
OK Contrail J292 9.15lb 77ft/s 494ft/s 12.6G 4,051ft 16.4s 14s
OK Hypertek J250 8.60lb 69ft/s 493ft/s 9.7G 4,132ft 16.6s 13s
OK AeroTech I65 7.41lb 48ft/s 408ft/s 5.0G 4,260ft 18.5s 10s
OK Hypertek J170 8.58lb 64ft/s 466ft/s 8.2G 4,267ft 17.3s 13s
OK Hypertek J120 8.60lb 53ft/s 435ft/s 5.8G 4,331ft 18.2s 11s
OK Cesaroni J250 7.58lb 53ft/s 583ft/s 7.8G 4,931ft 18.1s 15s
OK Cesaroni J145 7.60lb 58ft/s 506ft/s 13.4G 4,936ft 18.6s 14s
OK AeroTech J250 7.75lb 57ft/s 598ft/s 8.3G 5,157ft 18.4s 16s
OK Hypertek J270 8.61lb 77ft/s 567ft/s 11.9G 5,212ft 18.3s 15s
OK Cesaroni J280 7.85lb 58ft/s 614ft/s 8.8G 5,234ft 18.5s 16s
OK Hypertek J190 8.60lb 66ft/s 544ft/s 9.0G 5,396ft 19.2s 14s
OK AeroTech J250 7.31lb 67ft/s 616ft/s 9.5G 5,507ft 18.8s 16s
OK Contrail J358 9.59lb 79ft/s 615ft/s 16.1G 5,706ft 19.1s 16s
OK AeroTech J315 7.63lb 69ft/s 654ft/s 10.4G 5,848ft 19.2s 17s
OK Cesaroni J1055 7.45lb 130ft/s 725ft/s 35.1G 6,016ft 18.6s 18s
OK AeroTech J180 7.53lb 66ft/s 613ft/s 8.8G 6,218ft 20.1s 15s
OK Cesaroni J240 7.68lb 58ft/s 674ft/s 7.8G 6,355ft 20.3s 17s
OK Gorilla J365 8.40lb 57ft/s 699ft/s 13.1G 6,365ft 20.0s 18s
OK Cesaroni J210 7.61lb 60ft/s 643ft/s 8.6G 6,426ft 20.7s 17s
OK AeroTech J275 7.66lb 61ft/s 686ft/s 9.3G 6,668ft 20.6s 17s
OK Cesaroni J293 7.60lb 65ft/s 718ft/s 9.5G 6,752ft 20.6s 18s
OK Cesaroni J244 7.76lb 55ft/s 703ft/s 7.0G 6,764ft 21.0s 18s
OK Cesaroni J430 7.51lb 80ft/s 750ft/s 14.6G 6,796ft 20.2s 18s
OK Contrail J272 9.60lb 76ft/s 657ft/s 12.4G 6,955ft 21.3s 17s
OK Gorilla J167 8.43lb 61ft/s 623ft/s 8.9G 7,070ft 21.9s 16s
OK AeroTech J460 7.49lb 85ft/s 770ft/s 16.0G 7,097ft 20.5s 18s
OK AeroTech J1299 7.59lb 141ft/s 824ft/s 44.1G 7,212ft 20.1s 19s
OK AMW J400 8.80lb 66ft/s 774ft/s 12.3G 7,423ft 21.4s 19s
OK Loki J350 8.53lb 66ft/s 775ft/s 11.5G 7,532ft 21.5s 19s
OK AMW J1365 8.22lb 137ft/s 840ft/s 43.2G 7,563ft 20.6s 20s
OK Contrail J642 9.70lb 107ft/s 775ft/s 32.9G 7,592ft 21.1s 19s
OK Contrail J416 9.50lb 91ft/s 754ft/s 17.6G 7,870ft 22.0s 19s
OK AMW J475 8.86lb 73ft/s 828ft/s 15.8G 8,045ft 21.9s 20s
OK AeroTech J135 8.27lb 50ft/s 691ft/s 6.3G 8,343ft 23.8s 16s
OK Cesaroni J360 8.18lb 65ft/s 840ft/s 13.9G 8,373ft 22.5s 20s
OK Cesaroni J380 8.60lb 65ft/s 854ft/s 11.5G 8,474ft 22.6s 20s
OK Gorilla J395 8.31lb 67ft/s 853ft/s 12.0G 8,496ft 22.6s 20s
OK Gorilla J465 8.36lb 72ft/s 870ft/s 18.0G 8,575ft 22.4s 20s
OK AeroTech J450 8.45lb 72ft/s 868ft/s 14.1G 8,648ft 22.7s 20s
OK AMW J395 8.55lb 74ft/s 855ft/s 11.6G 8,729ft 22.9s 20s
OK AMW J325 8.46lb 79ft/s 829ft/s 13.4G 8,814ft 23.1s 20s
OK Gorilla J450 8.96lb 67ft/s 869ft/s 15.0G 8,819ft 23.0s 20s
OK Gorilla J485 8.37lb 77ft/s 905ft/s 15.2G 8,999ft 22.9s 21s
OK AMW J440 8.46lb 102ft/s 903ft/s 20.4G 9,184ft 22.9s 21s
OK AeroTech J1799 8.20lb 160ft/s 990ft/s 58.6G 9,227ft 22.2s 22s
OK Gorilla J535 8.45lb 90ft/s 927ft/s 17.1G 9,276ft 23.0s 21s
OK Loki J175 8.51lb 66ft/s 764ft/s 10.1G 9,329ft 24.5s 18s
OK Loki J525 8.48lb 88ft/s 940ft/s 17.6G 9,370ft 23.1s 21s
OK Cesaroni J1520 8.01lb 146ft/s 1,007ft/s 50.0G 9,426ft 22.5s 22s
OK Loki J820 8.42lb 117ft/s 978ft/s 28.9G 9,662ft 23.0s 22s
OK AMW J475 9.04lb 79ft/s 922ft/s 13.6G 9,813ft 24.0s 21s
OK AMW K1720 8.73lb 157ft/s 1,023ft/s 52.3G 9,896ft 23.1s 22s
OK AeroTech J401 7.76lb 80ft/s 964ft/s 13.2G 9,902ft 23.8s 21s
OK Loki J300 8.65lb 69ft/s 890ft/s 9.5G 9,952ft 24.7s 20s
OK AeroTech J540 8.14lb 91ft/s 992ft/s 18.1G 9,992ft 23.6s 21s
OK Gorilla K222 9.27lb 66ft/s 794ft/s 9.4G 10,034ft 25.4s 19s
OK Cesaroni J355 8.34lb 71ft/s 948ft/s 11.0G 10,133ft 24.4s 21s
OK AMW J745 8.44lb 103ft/s 1,018ft/s 22.8G 10,256ft 23.8s 22s
OK Cesaroni J295 8.22lb 74ft/s 919ft/s 11.0G 10,263ft 24.7s 21s
OK AeroTech K456 9.02lb 73ft/s 1,012ft/s 12.6G 10,814ft 24.9s 22s
OK AMW K665 9.58lb 87ft/s 1,038ft/s 20.3G 10,838ft 24.6s 23s
OK AeroTech J415 8.33lb 75ft/s 1,016ft/s 14.4G 10,978ft 25.0s 22s
OK Cesaroni K360 8.47lb 67ft/s 1,022ft/s 10.4G 11,124ft 25.5s 22s
OK Cesaroni J449 8.22lb 78ft/s 1,053ft/s 14.4G 11,131ft 25.0s 22s
OK AeroTech J800 8.14lb 112ft/s 1,096ft/s 25.2G 11,155ft 24.5s 23s
OK AeroTech K185 8.91lb 57ft/s 856ft/s 7.8G 11,262ft 26.6s 19s
OK AeroTech K400 8.38lb 82ft/s 1,022ft/s 13.5G 11,338ft 25.5s 22s
OK Cesaroni J760 8.12lb 107ft/s 1,122ft/s 23.9G 11,350ft 24.7s 23s
OK Gorilla K555 9.23lb 76ft/s 1,074ft/s 15.7G 11,525ft 25.5s 23s
OK Gorilla K520 8.93lb 78ft/s 1,078ft/s 15.2G 11,573ft 25.6s 23s
OK Cesaroni K454 8.82lb 76ft/s 1,065ft/s 13.2G 11,590ft 25.6s 23s
OK Gorilla K533 9.53lb 76ft/s 1,067ft/s 16.3G 11,613ft 25.6s 23s
OK Contrail K321 10.25lb 61ft/s 932ft/s 15.2G 11,655ft 26.7s 22s
OK Gorilla K630 9.19lb 85ft/s 1,100ft/s 19.9G 11,769ft 25.5s 23s
OK Cesaroni K530 9.37lb 77ft/s 1,107ft/s 15.2G 11,797ft 25.7s 23s
OK AMW K535 9.19lb 84ft/s 1,092ft/s 14.9G 11,970ft 25.9s 23s
OK KBA K700 9.06lb 99ft/s 1,154ft/s 23.4G 12,161ft 25.6s 24s
OK AeroTech K513 9.38lb 82ft/s 1,125ft/s 16.1G 12,186ft 26.0s 23s
OK AeroTech K2050 8.60lb 165ft/s 1,235ft/s 58.6G 12,244ft 25.1s 24s
OK Contrail K234 10.30lb 60ft/s 900ft/s 7.7G 12,287ft 28.4s 21s
OK AMW K610 9.64lb 87ft/s 1,119ft/s 16.4G 12,392ft 26.2s 24s
OK AMW K455 9.07lb 92ft/s 1,086ft/s 18.2G 12,419ft 26.3s 23s
OK Cesaroni K2045 8.59lb 159ft/s 1,266ft/s 63.3G 12,478ft 25.2s 24s
OK AeroTech K535 8.54lb 89ft/s 1,148ft/s 16.1G 12,493ft 26.1s 23s
OK AeroTech K695 9.03lb 94ft/s 1,195ft/s 22.3G 12,679ft 26.0s 24s
OK Cesaroni K160 9.00lb 53ft/s 851ft/s 5.9G 12,685ft 28.9s 19s
OK Loki K690 11.04lb 81ft/s 1,170ft/s 17.6G 12,920ft 26.7s 24s
OK Contrail K555 10.24lb 95ft/s 1,079ft/s 29.8G 12,968ft 27.0s 24s
OK Gorilla K327 9.76lb 77ft/s 1,019ft/s 15.1G 13,045ft 27.4s 22s
OK AMW K700 10.35lb 86ft/s 1,189ft/s 19.5G 13,105ft 26.7s 24s
OK Contrail K265 9.75lb 71ft/s 964ft/s 9.8G 13,168ft 28.5s 22s
OK AMW K935 9.07lb 111ft/s 1,261ft/s 26.8G 13,432ft 26.5s 25s
OK Cesaroni K400 9.17lb 74ft/s 1,174ft/s 10.7G 13,640ft 27.7s 24s
OK AeroTech K550 9.03lb 89ft/s 1,206ft/s 20.0G 13,681ft 27.0s 24s
OK AMW K855 10.43lb 98ft/s 1,250ft/s 23.7G 13,699ft 27.0s 25s
OK Cesaroni K500 9.00lb 79ft/s 1,228ft/s 14.5G 13,730ft 27.3s 24s
OK Loki K250 9.70lb 78ft/s 1,011ft/s 17.6G 13,793ft 29.0s 22s
OK AeroTech K1100 8.70lb 129ft/s 1,328ft/s 33.7G 13,875ft 26.6s 25s
OK Cesaroni K515 9.40lb 80ft/s 1,221ft/s 15.2G 13,883ft 27.5s 24s
OK AeroTech K540 8.56lb 97ft/s 1,267ft/s 21.5G 13,931ft 26.9s 24s
OK Gorilla K700 9.53lb 86ft/s 1,278ft/s 18.9G 14,157ft 27.6s 25s
OK Cesaroni K445 8.83lb 88ft/s 1,222ft/s 16.0G 14,213ft 27.7s 24s
OK Cesaroni K650 10.14lb 85ft/s 1,302ft/s 17.8G 14,329ft 27.7s 25s
OK Cesaroni K940 8.76lb 111ft/s 1,366ft/s 27.4G 14,377ft 27.0s 25s
OK Gorilla K763 9.70lb 90ft/s 1,311ft/s 20.3G 14,401ft 27.6s 25s
OK Cesaroni K630 8.86lb 94ft/s 1,346ft/s 19.1G 14,659ft 27.6s 25s
OK AMW K710 9.74lb 102ft/s 1,280ft/s 19.5G 14,660ft 27.9s 25s
OK Cesaroni K520 9.22lb 84ft/s 1,291ft/s 14.0G 14,675ft 28.1s 25s
OK Gorilla K805 9.66lb 92ft/s 1,334ft/s 26.2G 14,755ft 27.7s 26s
OK AMW K670 9.91lb 96ft/s 1,297ft/s 18.1G 14,791ft 28.1s 25s
OK AeroTech K990 10.40lb 96ft/s 1,358ft/s 24.6G 14,996ft 27.9s 26s
OK AeroTech K805 9.15lb 100ft/s 1,374ft/s 22.0G 14,997ft 27.8s 26s
OK AeroTech K850 10.25lb 99ft/s 1,380ft/s 25.1G 15,116ft 28.0s 26s
OK AMW K580 9.77lb 102ft/s 1,284ft/s 23.8G 15,223ft 28.4s 25s
OK AeroTech K1103 8.97lb 135ft/s 1,476ft/s 39.4G 15,655ft 27.8s 26s
OK AMW K1250 9.75lb 130ft/s 1,470ft/s 36.3G 16,107ft 28.4s 27s
OK Cesaroni K740 8.99lb 100ft/s 1,467ft/s 21.5G 16,166ft 28.5s 26s
OK Loki K527 10.10lb 84ft/s 1,332ft/s 16.0G 16,188ft 29.5s 25s
OK Loki K960 9.60lb 127ft/s 1,470ft/s 35.1G 16,263ft 28.5s 27s
OK Gorilla K980 11.17lb 101ft/s 1,406ft/s 27.2G 16,344ft 29.1s 27s
OK Cesaroni K675 10.03lb 87ft/s 1,422ft/s 19.3G 16,419ft 29.1s 26s
OK AeroTech K270 10.38lb 63ft/s 1,104ft/s 8.2G 16,434ft 31.2s 23s
OK Cesaroni K261 10.01lb 59ft/s 1,158ft/s 7.3G 16,504ft 31.2s 22s
OK Cesaroni K635 9.65lb 92ft/s 1,456ft/s 17.6G 16,595ft 29.2s 26s
OK Cesaroni K650 9.52lb 98ft/s 1,461ft/s 28.1G 16,628ft 29.0s 26s
OK Cesaroni K490 9.84lb 80ft/s 1,392ft/s 13.4G 16,631ft 29.8s 26s
OK AeroTech K828 10.65lb 105ft/s 1,471ft/s 26.7G 16,659ft 29.1s 27s
OK AMW K1075 11.57lb 107ft/s 1,452ft/s 26.8G 17,099ft 29.8s 28s
OK Cesaroni K1200 9.35lb 120ft/s 1,610ft/s 33.4G 17,111ft 28.8s 27s
OK AeroTech K1275 10.13lb 127ft/s 1,568ft/s 34.1G 17,122ft 28.9s 27s
OK Cesaroni K570 9.46lb 99ft/s 1,462ft/s 20.4G 17,394ft 29.7s 26s
OK Cesaroni K600 9.92lb 92ft/s 1,492ft/s 16.7G 17,542ft 30.0s 26s
OK Cesaroni K780 9.50lb 103ft/s 1,607ft/s 22.7G 17,766ft 29.5s 27s
OK AeroTech K375 10.39lb 115ft/s 1,332ft/s 28.5G 17,843ft 30.7s 25s
OK AeroTech K700 10.24lb 104ft/s 1,527ft/s 22.9G 18,109ft 30.0s 26s
OK AeroTech K480 10.33lb 96ft/s 1,458ft/s 18.9G 18,218ft 30.5s 26s
OK Cesaroni K815 10.59lb 95ft/s 1,594ft/s 24.5G 18,353ft 30.3s 27s
OK Cesaroni K750 10.28lb 93ft/s 1,603ft/s 20.7G 18,536ft 30.3s 27s
OK Gorilla K1075 11.35lb 105ft/s 1,587ft/s 27.0G 18,566ft 30.5s 28s
OK Cesaroni K260 10.26lb 65ft/s 1,237ft/s 8.6G 18,617ft 32.6s 24s
OK Cesaroni K711 10.60lb 98ft/s 1,586ft/s 31.2G 18,825ft 30.7s 27s
OK KBA K1750 11.40lb 129ft/s 1,700ft/s 48.4G 18,903ft 30.3s 29s
OK Loki K830 11.04lb 82ft/s 1,653ft/s 27.3G 18,905ft 30.9s 28s
OK Gorilla K470 10.88lb 98ft/s 1,412ft/s 21.2G 18,989ft 31.3s 26s
OK KBA K750 11.56lb 104ft/s 1,547ft/s 22.1G 19,031ft 31.1s 28s
OK Cesaroni K820 10.12lb 111ft/s 1,649ft/s 35.8G 19,213ft 30.6s 28s
OK Cesaroni K1440 9.92lb 141ft/s 1,788ft/s 42.9G 19,226ft 30.0s 28s
OK Gorilla K1185 11.35lb 102ft/s 1,667ft/s 29.1G 19,313ft 30.9s 29s
OK AMW K1130 11.42lb 118ft/s 1,643ft/s 29.5G 19,431ft 31.0s 29s
OK Cesaroni K590 10.15lb 128ft/s 1,534ft/s 39.2G 19,511ft 31.1s 27s
OK Loki K350 11.35lb 95ft/s 1,328ft/s 23.2G 19,531ft 32.8s 26s
OK Cesaroni K660 10.05lb 109ft/s 1,639ft/s 23.3G 19,740ft 31.1s 27s
OK AeroTech K1050 10.61lb 117ft/s 1,735ft/s 30.3G 19,854ft 30.9s 28s
OK AMW L1276 12.28lb 112ft/s 1,664ft/s 30.3G 19,958ft 31.6s 29s
OK Cesaroni K300 10.75lb 72ft/s 1,338ft/s 10.4G 20,263ft 33.4s 25s
OK AMW L985 11.42lb 111ft/s 1,678ft/s 27.9G 20,422ft 31.7s 29s
OK AeroTech K250 10.63lb 58ft/s 1,325ft/s 8.5G 20,440ft 33.9s 24s
OK AeroTech L1090 11.11lb 112ft/s 1,737ft/s 25.8G 20,557ft 31.5s 29s
OK KBA L2300 11.55lb 150ft/s 1,814ft/s 62.0G 20,670ft 31.4s 30s
OK Cesaroni L265 11.22lb 63ft/s 1,307ft/s 8.3G 20,701ft 34.7s 24s
OK AeroTech L1000 10.59lb 119ft/s 1,822ft/s 27.2G 20,882ft 31.3s 28s
OK Cesaroni L990 10.68lb 119ft/s 1,841ft/s 33.3G 21,417ft 31.7s 29s
OK Cesaroni L1030 10.90lb 110ft/s 1,894ft/s 30.8G 21,484ft 31.7s 29s
OK Cesaroni L805 11.27lb 108ft/s 1,778ft/s 28.5G 21,499ft 32.1s 28s
OK Cesaroni L730 10.70lb 112ft/s 1,741ft/s 24.6G 21,515ft 32.1s 28s
OK Cesaroni L640 10.70lb 121ft/s 1,645ft/s 32.1G 21,560ft 32.4s 27s
OK Loki L1400 11.35lb 127ft/s 1,879ft/s 42.4G 21,568ft 31.8s 30s
OK Cesaroni L935 11.35lb 118ft/s 1,914ft/s 29.5G 23,018ft 32.8s 30s
OK Loki L1040 12.28lb 105ft/s 2,127ft/s 26.8G 26,477ft 34.8s 31s
OK Loki L2050 14.69lb 144ft/s 2,425ft/s 56.2G 29,846ft 36.1s 34s
OK Loki M1378 15.30lb 130ft/s 2,426ft/s 34.6G 32,396ft 37.6s 34s
warningsD AMW K590 9.54lb 14:1 thrust/weight ratio (no data)
warningsD Gorilla K695 9.05lb 17:1 thrust/weight ratio (no data)
warningsD Gorilla K828 9.80lb 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 (39ft/s)
failedG Cesaroni I140 speed at end of launch guide too slow (44ft/s)
failedG AeroTech I115 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni I150 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni I120 speed at end of launch guide too slow (43ft/s)
failedG AeroTech J90 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni J140 speed at end of launch guide too slow (47ft/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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