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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 92 motors that fit and appear to have enough thrust (653 motors didn't fit, 46 motors failed safety checks). 138 motor had thrust curves available and 291 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:   Talon 4
Owner: Jackson
Body Diameter: 4.00in
Dry Weight: 6.85lb
MMT Diameter: 38.0mm
MMT Length: 18.83in
CD: 0.60

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 H222 8.00lb 68ft/s 122ft/s 18.1G 272ft 4.3s 4s
warningsW AeroTech H283 7.39lb 68ft/s 171ft/s 9.2G 473ft 5.6s 5s
OK AeroTech H148 7.53lb 49ft/s 158ft/s 4.8G 480ft 6.0s 5s
OK AeroTech H130 7.37lb 57ft/s 154ft/s 6.9G 496ft 6.0s 4s
OK Loki H125 7.60lb 49ft/s 166ft/s 5.1G 584ft 6.6s 5s
OK AeroTech H669 7.41lb 106ft/s 206ft/s 32.6G 591ft 6.0s 6s
OK Loki H144 7.59lb 55ft/s 175ft/s 6.3G 598ft 6.5s 5s
OK AeroTech H219 7.43lb 62ft/s 195ft/s 7.9G 621ft 6.5s 5s
OK AeroTech H242 7.43lb 55ft/s 195ft/s 6.2G 652ft 6.8s 5s
OK Loki H160 7.59lb 60ft/s 194ft/s 7.5G 683ft 6.8s 5s
OK Cesaroni H400 7.48lb 76ft/s 228ft/s 12.3G 734ft 6.8s 6s
OK Cesaroni H225 7.28lb 58ft/s 232ft/s 7.0G 822ft 7.4s 6s
OK AeroTech H170 7.58lb 49ft/s 238ft/s 5.1G 964ft 8.3s 6s
OK AeroTech I218 7.67lb 61ft/s 250ft/s 7.4G 980ft 8.1s 7s
OK AeroTech I180 7.70lb 69ft/s 240ft/s 9.6G 1,019ft 8.2s 6s
OK AeroTech I161 7.66lb 51ft/s 240ft/s 5.4G 1,024ft 8.5s 6s
OK AeroTech H550 7.56lb 97ft/s 282ft/s 18.3G 1,026ft 7.9s 7s
OK AeroTech H550 7.55lb 98ft/s 284ft/s 18.4G 1,034ft 7.9s 7s
warningsW Cesaroni H565 7.65lb 92ft/s 287ft/s 18.1G 1,046ft 8.0s 7s
OK Cesaroni I180 7.72lb 48ft/s 256ft/s 5.3G 1,051ft 8.6s 7s
OK AeroTech H999 7.58lb 128ft/s 298ft/s 46.7G 1,073ft 7.9s 8s
OK AeroTech I225 7.92lb 53ft/s 272ft/s 6.9G 1,149ft 8.8s 7s
OK Cesaroni I212 7.90lb 50ft/s 279ft/s 6.3G 1,166ft 8.9s 7s
OK AeroTech I245 7.65lb 74ft/s 278ft/s 11.2G 1,168ft 8.6s 7s
OK AeroTech I357 7.61lb 71ft/s 286ft/s 10.2G 1,179ft 8.7s 7s
OK Cesaroni I566 7.70lb 90ft/s 331ft/s 17.3G 1,298ft 8.8s 8s
OK Cesaroni I195 7.77lb 54ft/s 296ft/s 5.9G 1,337ft 9.6s 8s
OK Cesaroni I170 7.71lb 52ft/s 302ft/s 5.6G 1,393ft 9.8s 7s
OK Cesaroni I345 7.72lb 71ft/s 334ft/s 10.4G 1,415ft 9.4s 8s
OK AeroTech I285 7.94lb 68ft/s 327ft/s 9.7G 1,440ft 9.5s 8s
OK Cesaroni I236 7.73lb 59ft/s 322ft/s 8.0G 1,466ft 9.8s 8s
OK Cesaroni I800 7.86lb 107ft/s 373ft/s 24.9G 1,513ft 9.3s 9s
OK Cesaroni I223 7.94lb 54ft/s 328ft/s 6.3G 1,523ft 10.0s 8s
OK AeroTech I211 7.85lb 62ft/s 317ft/s 8.2G 1,527ft 10.0s 8s
OK AeroTech I195 8.11lb 64ft/s 319ft/s 9.0G 1,552ft 10.0s 8s
OK AeroTech I305 8.13lb 70ft/s 341ft/s 10.4G 1,561ft 9.8s 8s
OK AeroTech I1299 7.78lb 144ft/s 389ft/s 43.0G 1,577ft 9.4s 9s
OK AeroTech I300 7.82lb 73ft/s 345ft/s 12.4G 1,578ft 9.8s 8s
OK Loki I316 8.04lb 80ft/s 366ft/s 13.1G 1,733ft 10.2s 9s
OK Cesaroni I287 8.18lb 61ft/s 375ft/s 8.5G 1,776ft 10.5s 9s
OK Loki I210 8.04lb 69ft/s 349ft/s 11.4G 1,803ft 10.6s 8s
OK Loki I405 8.05lb 99ft/s 399ft/s 21.4G 1,874ft 10.3s 9s
OK Cesaroni I285 7.97lb 64ft/s 390ft/s 8.9G 1,914ft 10.9s 9s
OK Cesaroni I255 7.99lb 63ft/s 388ft/s 7.9G 1,939ft 11.0s 9s
OK Loki I377 8.08lb 87ft/s 408ft/s 17.3G 1,987ft 10.7s 9s
OK Loki I430 8.04lb 78ft/s 427ft/s 13.9G 1,988ft 10.7s 10s
OK AMW I297 8.15lb 65ft/s 410ft/s 9.3G 2,034ft 11.1s 9s
OK AeroTech I327 8.23lb 71ft/s 415ft/s 10.8G 2,035ft 11.0s 9s
OK AeroTech I366 8.07lb 79ft/s 422ft/s 12.6G 2,048ft 10.9s 9s
OK AeroTech I364 8.34lb 69ft/s 416ft/s 10.3G 2,058ft 11.1s 9s
OK Cesaroni I125 8.28lb 49ft/s 323ft/s 6.3G 2,058ft 12.2s 8s
OK Cesaroni I303 7.95lb 69ft/s 415ft/s 10.7G 2,074ft 11.2s 9s
OK Cesaroni I242 8.06lb 58ft/s 403ft/s 7.0G 2,085ft 11.5s 9s
OK Cesaroni I470 7.94lb 85ft/s 448ft/s 14.8G 2,093ft 10.9s 10s
OK AeroTech I280 8.21lb 64ft/s 417ft/s 8.2G 2,108ft 11.4s 9s
OK AeroTech I435 7.99lb 96ft/s 461ft/s 20.2G 2,241ft 11.2s 10s
OK Cesaroni I350 8.57lb 68ft/s 446ft/s 9.5G 2,241ft 11.5s 10s
OK KBA I301 8.45lb 66ft/s 446ft/s 9.9G 2,245ft 11.5s 10s
OK AeroTech I284 8.07lb 78ft/s 445ft/s 12.6G 2,286ft 11.5s 10s
OK KBA I550 8.42lb 85ft/s 500ft/s 17.5G 2,289ft 11.2s 10s
OK AeroTech I500 8.12lb 84ft/s 499ft/s 15.0G 2,454ft 11.6s 10s
OK Cesaroni I216 8.17lb 60ft/s 431ft/s 8.3G 2,475ft 12.3s 9s
OK Loki J396 8.51lb 73ft/s 491ft/s 13.5G 2,495ft 11.9s 10s
warningsW Cesaroni I540 8.17lb 92ft/s 518ft/s 16.5G 2,505ft 11.7s 11s
OK AeroTech I600 8.18lb 99ft/s 518ft/s 21.5G 2,522ft 11.7s 11s
OK Cesaroni J335 8.23lb 73ft/s 485ft/s 10.2G 2,532ft 12.1s 10s
OK AeroTech I350 8.21lb 75ft/s 502ft/s 12.5G 2,534ft 12.0s 10s
OK AeroTech J420 8.28lb 82ft/s 501ft/s 14.2G 2,538ft 11.9s 10s
OK Cesaroni J270 8.29lb 58ft/s 468ft/s 7.2G 2,541ft 12.4s 10s
OK Cesaroni J285 8.16lb 68ft/s 473ft/s 9.2G 2,551ft 12.2s 10s
OK Cesaroni J381 8.37lb 77ft/s 496ft/s 12.6G 2,559ft 12.0s 10s
OK Cesaroni J316 8.19lb 71ft/s 478ft/s 11.0G 2,568ft 12.2s 10s
OK AeroTech J350 8.32lb 96ft/s 504ft/s 21.2G 2,574ft 11.9s 10s
OK AeroTech J340 8.12lb 80ft/s 494ft/s 15.6G 2,577ft 12.0s 10s
OK KBA J740 8.45lb 106ft/s 544ft/s 24.4G 2,581ft 11.7s 11s
OK Cesaroni J357 8.17lb 75ft/s 503ft/s 13.1G 2,601ft 12.1s 10s
OK AeroTech J425 8.24lb 70ft/s 532ft/s 11.3G 2,683ft 12.3s 11s
OK Cesaroni J290 8.30lb 68ft/s 490ft/s 9.6G 2,690ft 12.6s 10s
OK Cesaroni J400 8.40lb 77ft/s 526ft/s 11.8G 2,742ft 12.4s 11s
OK AeroTech J270 8.27lb 66ft/s 494ft/s 8.7G 2,775ft 12.7s 10s
OK AeroTech J500 8.29lb 97ft/s 561ft/s 20.4G 2,870ft 12.3s 11s
OK Loki J528 8.49lb 103ft/s 579ft/s 26.0G 2,919ft 12.3s 11s
OK Cesaroni J330 8.40lb 75ft/s 545ft/s 11.3G 3,032ft 13.0s 11s
OK AeroTech J575 8.87lb 104ft/s 596ft/s 21.3G 3,042ft 12.5s 11s
OK Cesaroni J410 8.47lb 80ft/s 571ft/s 12.5G 3,060ft 12.9s 11s
OK AeroTech J435 8.23lb 94ft/s 587ft/s 17.8G 3,093ft 12.8s 11s
OK Cesaroni J425 8.39lb 84ft/s 580ft/s 16.9G 3,104ft 12.9s 11s
OK Loki J712 8.51lb 102ft/s 627ft/s 22.2G 3,142ft 12.7s 12s
OK Loki J320 8.51lb 74ft/s 557ft/s 13.0G 3,194ft 13.3s 11s
OK Cesaroni J354 8.57lb 77ft/s 569ft/s 12.7G 3,227ft 13.3s 11s
OK AeroTech J825 8.78lb 118ft/s 744ft/s 29.1G 3,707ft 13.4s 12s
OK AeroTech J570 8.84lb 115ft/s 698ft/s 28.3G 3,957ft 13.9s 12s

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 Contrail G130 speed at end of launch guide too slow (47ft/s)
failedA AeroTech G339 rocket doesn't reach a safe altitude (169ft)
failedG AeroTech G67 speed at end of launch guide too slow (30ft/s)
failedG Loki G69 speed at end of launch guide too slow (31ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (28ft/s)
failedA Contrail G234 rocket doesn't reach a safe altitude (153ft)
failedG Loki G70 speed at end of launch guide too slow (32ft/s)
failedG Loki G94 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (27ft/s)
failedG Loki G80 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (20ft/s)
failedA Cesaroni G185 rocket doesn't reach a safe altitude (196ft)
failedG Cesaroni G79 speed at end of launch guide too slow (28ft/s)
failedG Loki G66 speed at end of launch guide too slow (34ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (28ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (27ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (21ft/s)
failedG Cesaroni G115 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (29ft/s)
failedG Contrail G123 speed at end of launch guide too slow (47ft/s)
failedG Contrail G100 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (19ft/s)
failedA Contrail G300 rocket doesn't reach a safe altitude (115ft)
failedG AeroTech H73 speed at end of launch guide too slow (27ft/s)
failedG Loki H100 speed at end of launch guide too slow (39ft/s)
failedG AeroTech H123 speed at end of launch guide too slow (41ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (38ft/s)
failedG Loki H90 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (41ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni H152 speed at end of launch guide too slow (46ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (35ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (28ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (46ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (41ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (19ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (22ft/s)
failedG Cesaroni I175 speed at end of launch guide too slow (47ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (42ft/s)
failedG Loki I110 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (38ft/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.)

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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