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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 99 motors that fit and appear to have enough thrust (656 motors didn't fit, 36 motors failed safety checks). 135 motor had thrust curves available and 282 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:   Wildman Darkstar Jr
Owner: Kevin Thomson
Body Diameter: 2.10in
Dry Weight: 72.1oz
MMT Diameter: 38.0mm
MMT Length: 18.00in
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 Contrail G130 90.3oz 54ft/s 106ft/s 20.3G 228ft 4.0s 3s
OK Contrail G234 91.3oz 87ft/s 134ft/s 20.4G 317ft 4.6s 4s
OK AeroTech G339 78.5oz 78ft/s 155ft/s 16.3G 381ft 5.0s 5s
OK Contrail G123 90.1oz 53ft/s 148ft/s 13.2G 429ft 5.5s 4s
OK Contrail G100 90.1oz 49ft/s 145ft/s 6.3G 443ft 5.7s 4s
OK Cesaroni G185 78.8oz 54ft/s 166ft/s 8.5G 457ft 5.6s 5s
OK Contrail H222 90.5oz 76ft/s 181ft/s 26.0G 563ft 6.1s 5s
warningsW AeroTech H283 80.8oz 70ft/s 264ft/s 14.0G 1,045ft 8.2s 7s
OK AeroTech H148 83.0oz 53ft/s 253ft/s 7.4G 1,083ft 8.7s 7s
OK AeroTech H130 80.5oz 63ft/s 250ft/s 10.6G 1,119ft 8.7s 7s
OK AeroTech H669 81.0oz 111ft/s 308ft/s 48.1G 1,280ft 8.8s 8s
OK Loki H125 84.2oz 52ft/s 268ft/s 7.8G 1,299ft 9.5s 8s
OK Loki H144 84.0oz 61ft/s 278ft/s 9.6G 1,313ft 9.3s 8s
OK AeroTech H219 81.3oz 65ft/s 304ft/s 12.0G 1,374ft 9.4s 8s
OK AeroTech H242 81.4oz 59ft/s 307ft/s 9.5G 1,449ft 9.8s 8s
OK Loki H160 83.9oz 66ft/s 303ft/s 11.4G 1,484ft 9.8s 8s
OK Cesaroni H400 82.1oz 79ft/s 346ft/s 18.6G 1,592ft 9.9s 9s
OK Cesaroni H152 82.6oz 50ft/s 332ft/s 8.2G 1,730ft 10.8s 9s
OK AeroTech H178 83.6oz 48ft/s 347ft/s 8.5G 1,790ft 10.9s 9s
OK Cesaroni H225 78.9oz 60ft/s 364ft/s 10.8G 1,833ft 10.8s 10s
OK AeroTech I218 85.2oz 64ft/s 386ft/s 11.1G 2,104ft 11.5s 10s
OK AeroTech H170 83.8oz 52ft/s 377ft/s 7.9G 2,112ft 11.8s 10s
OK AeroTech I180 85.7oz 75ft/s 374ft/s 14.2G 2,166ft 11.7s 10s
OK AeroTech H550 83.5oz 99ft/s 423ft/s 27.1G 2,177ft 11.3s 11s
OK AeroTech H550 83.3oz 100ft/s 427ft/s 27.3G 2,199ft 11.4s 11s
warningsW Cesaroni H565 84.9oz 98ft/s 428ft/s 27.3G 2,212ft 11.4s 11s
OK AeroTech I161 85.0oz 54ft/s 381ft/s 8.3G 2,221ft 12.1s 10s
OK AeroTech H999 83.8oz 134ft/s 441ft/s 68.0G 2,262ft 11.4s 11s
OK Cesaroni I180 86.0oz 49ft/s 400ft/s 8.2G 2,274ft 12.2s 10s
OK AeroTech I140 84.7oz 49ft/s 378ft/s 6.7G 2,279ft 12.4s 10s
OK AeroTech I225 89.3oz 56ft/s 418ft/s 10.5G 2,428ft 12.4s 11s
OK AeroTech I245 85.0oz 74ft/s 428ft/s 16.6G 2,472ft 12.3s 11s
OK Cesaroni I212 88.9oz 54ft/s 430ft/s 9.7G 2,480ft 12.6s 11s
OK AeroTech I357 84.2oz 75ft/s 439ft/s 15.2G 2,506ft 12.3s 11s
OK Cesaroni I566 85.7oz 93ft/s 493ft/s 26.3G 2,726ft 12.5s 12s
OK Cesaroni I195 86.8oz 54ft/s 461ft/s 8.9G 2,849ft 13.4s 11s
OK Cesaroni I175 87.6oz 51ft/s 466ft/s 7.1G 2,966ft 13.8s 11s
OK Cesaroni I170 86.0oz 54ft/s 472ft/s 8.5G 2,972ft 13.7s 11s
OK Cesaroni I345 86.1oz 74ft/s 505ft/s 15.3G 2,975ft 13.3s 12s
OK AeroTech I285 89.5oz 70ft/s 494ft/s 14.3G 2,994ft 13.4s 12s
OK Cesaroni I236 86.2oz 62ft/s 497ft/s 12.0G 3,098ft 13.8s 12s
OK Cesaroni I800 88.2oz 107ft/s 548ft/s 37.4G 3,135ft 13.3s 13s
OK Cesaroni I223 89.6oz 56ft/s 505ft/s 9.6G 3,191ft 14.0s 12s
OK AeroTech I211 88.2oz 65ft/s 491ft/s 12.1G 3,192ft 14.0s 12s
OK AeroTech I195 92.3oz 68ft/s 488ft/s 13.2G 3,196ft 14.0s 12s
OK AeroTech I305 92.6oz 74ft/s 511ft/s 15.2G 3,198ft 13.7s 12s
OK AeroTech I1299 87.0oz 149ft/s 570ft/s 62.9G 3,260ft 13.4s 13s
OK AeroTech I300 87.7oz 77ft/s 524ft/s 18.1G 3,280ft 13.9s 12s
OK Loki I316 91.2oz 86ft/s 548ft/s 18.9G 3,542ft 14.3s 13s
OK Cesaroni I287 93.5oz 63ft/s 564ft/s 12.8G 3,644ft 14.7s 13s
OK Loki I210 91.2oz 74ft/s 534ft/s 16.5G 3,692ft 14.7s 12s
OK Loki I405 91.3oz 108ft/s 593ft/s 30.7G 3,812ft 14.6s 13s
OK Cesaroni I285 90.0oz 68ft/s 595ft/s 13.1G 3,954ft 15.2s 13s
OK Cesaroni I255 90.3oz 64ft/s 593ft/s 11.7G 4,004ft 15.3s 13s
OK Loki I377 91.9oz 91ft/s 609ft/s 24.8G 4,037ft 15.0s 14s
OK Loki I430 91.2oz 85ft/s 634ft/s 20.0G 4,070ft 15.1s 14s
OK AeroTech I327 94.3oz 76ft/s 621ft/s 15.5G 4,132ft 15.3s 14s
OK AMW I297 93.0oz 68ft/s 616ft/s 13.5G 4,148ft 15.4s 14s
OK AeroTech I364 96.0oz 73ft/s 622ft/s 15.1G 4,164ft 15.4s 14s
OK AeroTech I366 91.7oz 83ft/s 633ft/s 18.2G 4,180ft 15.3s 14s
OK Cesaroni I125 94.9oz 54ft/s 518ft/s 9.1G 4,241ft 16.6s 12s
OK Cesaroni I303 89.8oz 72ft/s 630ft/s 15.5G 4,262ft 15.6s 14s
OK Cesaroni I242 91.5oz 61ft/s 618ft/s 10.2G 4,286ft 15.9s 14s
OK Cesaroni I470 89.6oz 91ft/s 668ft/s 21.4G 4,290ft 15.3s 14s
OK AeroTech I280 93.9oz 67ft/s 631ft/s 11.9G 4,302ft 15.8s 14s
OK Cesaroni I350 99.7oz 72ft/s 658ft/s 13.7G 4,493ft 16.0s 14s
OK KBA I301 97.7oz 66ft/s 678ft/s 14.2G 4,518ft 15.8s 14s
OK AeroTech I435 90.4oz 103ft/s 687ft/s 29.1G 4,555ft 15.6s 14s
OK KBA I550 97.2oz 88ft/s 745ft/s 26.5G 4,616ft 15.6s 15s
OK AeroTech I284 91.7oz 81ft/s 672ft/s 18.3G 4,641ft 16.0s 14s
OK AeroTech I500 92.4oz 88ft/s 741ft/s 21.7G 4,973ft 16.3s 15s
OK Loki J396 98.7oz 76ft/s 723ft/s 19.6G 5,002ft 16.6s 15s
OK Cesaroni I216 93.3oz 64ft/s 662ft/s 12.1G 5,019ft 17.0s 14s
warningsW Cesaroni I540 93.2oz 94ft/s 765ft/s 23.9G 5,069ft 16.4s 15s
OK AeroTech I600 93.4oz 105ft/s 763ft/s 30.6G 5,088ft 16.3s 15s
OK Cesaroni J335 94.2oz 77ft/s 727ft/s 14.8G 5,113ft 16.8s 15s
OK AeroTech J420 95.0oz 84ft/s 744ft/s 20.2G 5,116ft 16.6s 15s
OK AeroTech I350 93.9oz 77ft/s 751ft/s 18.2G 5,129ft 16.7s 15s
OK Cesaroni J381 96.4oz 83ft/s 737ft/s 17.9G 5,134ft 16.7s 15s
OK Cesaroni J270 95.2oz 63ft/s 712ft/s 10.7G 5,148ft 17.1s 15s
OK AeroTech J350 95.6oz 101ft/s 745ft/s 30.0G 5,155ft 16.5s 15s
OK Cesaroni J285 93.1oz 70ft/s 716ft/s 13.5G 5,170ft 17.0s 15s
OK KBA J740 97.7oz 106ft/s 783ft/s 35.8G 5,175ft 16.4s 16s
OK AeroTech J340 92.5oz 88ft/s 741ft/s 22.4G 5,190ft 16.7s 15s
OK Cesaroni J316 93.5oz 76ft/s 718ft/s 15.8G 5,191ft 17.0s 15s
OK Cesaroni J357 93.3oz 78ft/s 755ft/s 18.8G 5,258ft 16.9s 15s
OK Cesaroni J290 95.4oz 70ft/s 742ft/s 13.8G 5,417ft 17.3s 15s
OK AeroTech J425 94.4oz 73ft/s 794ft/s 16.9G 5,430ft 17.1s 15s
OK Cesaroni J400 96.9oz 78ft/s 783ft/s 17.3G 5,500ft 17.2s 15s
OK AeroTech J270 94.8oz 69ft/s 752ft/s 12.6G 5,591ft 17.6s 15s
OK AeroTech J500 95.2oz 97ft/s 831ft/s 28.9G 5,754ft 17.2s 16s
OK Loki J528 98.4oz 108ft/s 843ft/s 36.3G 5,813ft 17.2s 16s
OK Cesaroni J330 96.9oz 76ft/s 818ft/s 16.1G 6,063ft 18.0s 16s
OK Cesaroni J410 98.1oz 82ft/s 849ft/s 17.7G 6,106ft 17.9s 16s
OK Cesaroni J425 96.8oz 88ft/s 861ft/s 23.9G 6,187ft 17.8s 16s
OK AeroTech J435 94.1oz 97ft/s 875ft/s 25.4G 6,202ft 17.8s 16s
OK Loki J712 98.7oz 102ft/s 910ft/s 31.1G 6,268ft 17.7s 17s
OK Loki J320 98.7oz 76ft/s 833ft/s 18.3G 6,352ft 18.4s 16s
OK Cesaroni J354 99.6oz 79ft/s 853ft/s 17.8G 6,400ft 18.3s 16s

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.

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 G67 speed at end of launch guide too slow (34ft/s)
failedG Loki G69 speed at end of launch guide too slow (35ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (31ft/s)
failedG Loki G70 speed at end of launch guide too slow (37ft/s)
failedG Loki G94 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (31ft/s)
failedG Loki G80 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (30ft/s)
failedG Loki G66 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (32ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (32ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (24ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (235ft)
failedG AeroTech H73 speed at end of launch guide too slow (30ft/s)
failedG Loki H100 speed at end of launch guide too slow (42ft/s)
failedG AeroTech H123 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (40ft/s)
failedG Loki H90 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (44ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (39ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (32ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (44ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (23ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (26ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (44ft/s)
failedG Loki I110 speed at end of launch guide too slow (47ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (42ft/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.)

A The minimum altitude check is used to ensure that the rocket flies high enough to ensure time for a safe recovery. In addition, many barometric altimeters require a minimum altitude to detect lift-off. (The minimum altitude is 10m or 33ft for an A motor and doubles for each impulse class).

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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