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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 (653 motors didn't fit, 69 motors failed safety checks). 138 motor had thrust curves available and 290 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:   strato shark 38
Owner: Dean Mumme
Body Diameter: 5.50in
Dry Weight: 13.00lb
MMT Diameter: 38.0mm
MMT Length: 19.00in
CD: 0.80

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 I218 13.82lb 48ft/s 119ft/s 3.6G 301ft 4.9s 3s
OK AeroTech I180 13.85lb 54ft/s 113ft/s 4.9G 319ft 5.0s 3s
OK AeroTech H550 13.71lb 77ft/s 147ft/s 9.6G 342ft 4.8s 4s
OK AeroTech H550 13.70lb 77ft/s 148ft/s 9.6G 344ft 4.8s 4s
warningsW Cesaroni H565 13.80lb 76ft/s 150ft/s 9.5G 349ft 4.9s 4s
OK AeroTech H999 13.73lb 103ft/s 159ft/s 25.3G 367ft 4.8s 4s
OK AeroTech I245 13.80lb 60ft/s 137ft/s 5.7G 383ft 5.3s 4s
OK AeroTech I357 13.76lb 56ft/s 142ft/s 5.2G 385ft 5.3s 4s
OK Cesaroni I566 13.85lb 75ft/s 173ft/s 9.1G 450ft 5.5s 5s
OK Cesaroni I345 13.87lb 57ft/s 169ft/s 5.3G 484ft 5.9s 5s
OK AeroTech I285 14.09lb 56ft/s 165ft/s 5.0G 497ft 6.0s 5s
OK AeroTech I211 14.00lb 49ft/s 154ft/s 4.1G 516ft 6.4s 4s
OK AeroTech I195 14.26lb 51ft/s 158ft/s 4.7G 536ft 6.5s 4s
OK Cesaroni I800 14.01lb 89ft/s 199ft/s 13.3G 553ft 5.9s 5s
OK AeroTech I300 13.97lb 57ft/s 175ft/s 6.5G 556ft 6.3s 5s
OK AeroTech I305 14.28lb 59ft/s 175ft/s 5.4G 560ft 6.3s 5s
OK AeroTech I1299 13.93lb 121ft/s 211ft/s 23.3G 589ft 6.0s 6s
OK Loki I316 14.19lb 67ft/s 190ft/s 6.9G 641ft 6.6s 5s
OK Cesaroni I287 14.33lb 49ft/s 191ft/s 4.4G 641ft 6.9s 5s
OK Loki I210 14.19lb 56ft/s 176ft/s 6.0G 653ft 6.9s 5s
OK Cesaroni I285 14.12lb 52ft/s 197ft/s 4.6G 695ft 7.2s 5s
OK Cesaroni I255 14.14lb 49ft/s 194ft/s 4.0G 700ft 7.3s 5s
OK Loki I405 14.20lb 80ft/s 212ft/s 11.7G 718ft 6.8s 6s
OK Loki I430 14.19lb 64ft/s 225ft/s 7.4G 757ft 7.1s 6s
OK Loki I377 14.23lb 72ft/s 215ft/s 9.4G 764ft 7.1s 6s
OK AMW I297 14.30lb 53ft/s 211ft/s 4.9G 765ft 7.4s 5s
OK Cesaroni I303 14.10lb 55ft/s 212ft/s 5.6G 776ft 7.5s 6s
OK AeroTech I327 14.38lb 57ft/s 217ft/s 5.7G 777ft 7.4s 6s
OK AeroTech I366 14.22lb 65ft/s 221ft/s 6.7G 783ft 7.3s 6s
OK AeroTech I364 14.49lb 57ft/s 218ft/s 5.5G 791ft 7.4s 6s
OK AeroTech I280 14.36lb 51ft/s 213ft/s 4.3G 792ft 7.6s 6s
OK Cesaroni I470 14.09lb 69ft/s 237ft/s 7.9G 810ft 7.3s 6s
OK KBA I301 14.60lb 55ft/s 231ft/s 5.2G 884ft 7.9s 6s
OK Cesaroni I350 14.72lb 57ft/s 237ft/s 5.1G 885ft 7.9s 6s
OK AeroTech I435 14.14lb 78ft/s 246ft/s 11.0G 893ft 7.5s 6s
OK AeroTech I284 14.22lb 64ft/s 233ft/s 6.7G 898ft 7.8s 6s
OK KBA I550 14.57lb 73ft/s 266ft/s 9.3G 933ft 7.7s 7s
OK Cesaroni I216 14.32lb 48ft/s 219ft/s 4.3G 952ft 8.5s 5s
OK Cesaroni J270 14.44lb 48ft/s 241ft/s 3.7G 995ft 8.6s 6s
OK AeroTech I500 14.27lb 70ft/s 267ft/s 8.1G 1,000ft 8.0s 7s
OK Cesaroni J285 14.31lb 54ft/s 246ft/s 4.8G 1,014ft 8.4s 6s
OK Cesaroni J335 14.38lb 59ft/s 255ft/s 5.4G 1,020ft 8.4s 6s
OK Loki J396 14.66lb 59ft/s 264ft/s 7.3G 1,021ft 8.2s 7s
OK AeroTech I350 14.36lb 62ft/s 267ft/s 6.6G 1,030ft 8.2s 7s
OK Cesaroni J316 14.34lb 57ft/s 251ft/s 5.9G 1,030ft 8.4s 6s
warningsW Cesaroni I540 14.32lb 75ft/s 279ft/s 8.9G 1,032ft 8.1s 7s
OK AeroTech J420 14.43lb 68ft/s 268ft/s 7.7G 1,041ft 8.2s 7s
OK AeroTech I600 14.33lb 85ft/s 280ft/s 11.8G 1,048ft 8.1s 7s
OK Cesaroni J381 14.52lb 63ft/s 265ft/s 6.8G 1,050ft 8.4s 6s
OK AeroTech J340 14.27lb 65ft/s 261ft/s 8.5G 1,054ft 8.3s 6s
OK Cesaroni J357 14.32lb 60ft/s 266ft/s 7.1G 1,059ft 8.4s 7s
OK AeroTech J350 14.47lb 76ft/s 272ft/s 11.8G 1,073ft 8.2s 7s
OK Cesaroni J290 14.45lb 54ft/s 256ft/s 5.1G 1,088ft 8.7s 6s
OK KBA J740 14.60lb 90ft/s 301ft/s 13.5G 1,093ft 8.1s 7s
OK AeroTech J425 14.39lb 59ft/s 282ft/s 6.0G 1,102ft 8.6s 7s
OK AeroTech J270 14.42lb 52ft/s 257ft/s 4.6G 1,128ft 9.0s 6s
OK Cesaroni J400 14.55lb 63ft/s 282ft/s 6.4G 1,146ft 8.7s 7s
OK AeroTech J500 14.44lb 80ft/s 305ft/s 11.3G 1,232ft 8.7s 7s
OK Loki J528 14.64lb 85ft/s 321ft/s 14.7G 1,278ft 8.7s 7s
OK Cesaroni J330 14.55lb 62ft/s 292ft/s 6.1G 1,292ft 9.2s 7s
OK Cesaroni J410 14.62lb 66ft/s 309ft/s 6.8G 1,322ft 9.2s 7s
OK AeroTech J435 14.38lb 76ft/s 318ft/s 9.8G 1,345ft 9.2s 7s
OK Cesaroni J425 14.54lb 70ft/s 315ft/s 9.3G 1,354ft 9.2s 7s
OK AeroTech J575 15.02lb 88ft/s 334ft/s 12.0G 1,370ft 9.0s 8s
OK Loki J320 14.66lb 60ft/s 300ft/s 7.1G 1,378ft 9.6s 7s
OK Loki J712 14.66lb 84ft/s 347ft/s 12.5G 1,400ft 9.1s 8s
OK Cesaroni J354 14.72lb 62ft/s 307ft/s 6.9G 1,408ft 9.6s 7s
OK AeroTech J825 14.93lb 101ft/s 420ft/s 16.7G 1,753ft 9.9s 9s
OK AeroTech J570 14.99lb 97ft/s 394ft/s 16.3G 1,892ft 10.4s 8s

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 (29ft/s)
failedA AeroTech G339 rocket doesn't reach a safe altitude (46ft)
failedG AeroTech G67 speed at end of launch guide too slow (13ft/s)
failedG Loki G69 speed at end of launch guide too slow (15ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (7ft/s)
failedG Contrail G234 speed at end of launch guide too slow (45ft/s)
failedG Loki G70 speed at end of launch guide too slow (17ft/s)
failedG Loki G94 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (9ft/s)
failedG Loki G80 speed at end of launch guide too slow (21ft/s)
failed5 Cesaroni G46 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG Cesaroni G185 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (18ft/s)
failedG Loki G66 speed at end of launch guide too slow (20ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (13ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (16ft/s)
failed5 Cesaroni G58 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG Cesaroni G115 speed at end of launch guide too slow (26ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (17ft/s)
failedG Contrail G123 speed at end of launch guide too slow (33ft/s)
failedG Contrail G100 speed at end of launch guide too slow (31ft/s)
failed5 Cesaroni G50 average thrust fails 5:1 thrust/weight ratio (1:1)
failedA Contrail G300 rocket doesn't reach a safe altitude (36ft)
failedA Contrail H222 rocket doesn't reach a safe altitude (82ft)
failedG AeroTech H73 speed at end of launch guide too slow (14ft/s)
failedG Loki H100 speed at end of launch guide too slow (29ft/s)
failedA AeroTech H283 rocket doesn't reach a safe altitude (135ft)
failedG AeroTech H148 speed at end of launch guide too slow (36ft/s)
failedG AeroTech H130 speed at end of launch guide too slow (42ft/s)
failedA AeroTech H669 rocket doesn't reach a safe altitude (183ft)
failedG AeroTech H123 speed at end of launch guide too slow (29ft/s)
failedG AeroTech H100 speed at end of launch guide too slow (27ft/s)
failedG AeroTech H242 speed at end of launch guide too slow (42ft/s)
failedG Cesaroni H123 speed at end of launch guide too slow (29ft/s)
failedG AeroTech H219 speed at end of launch guide too slow (47ft/s)
failedG Loki H90 speed at end of launch guide too slow (27ft/s)
failedG Loki H144 speed at end of launch guide too slow (41ft/s)
failedG Loki H125 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni H143 speed at end of launch guide too slow (31ft/s)
failedA Cesaroni H400 rocket doesn't reach a safe altitude (225ft)
failedG Loki H160 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni H120 speed at end of launch guide too slow (30ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (21ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (25ft/s)
failedG Cesaroni H225 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni H152 speed at end of launch guide too slow (35ft/s)
failedG AeroTech H178 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni H125 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni H100 speed at end of launch guide too slow (24ft/s)
failedG AeroTech H170 speed at end of launch guide too slow (37ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (16ft/s)
failedG AeroTech I161 speed at end of launch guide too slow (39ft/s)
failedG AeroTech I140 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni I180 speed at end of launch guide too slow (37ft/s)
failedG Cesaroni I212 speed at end of launch guide too slow (40ft/s)
failedG AeroTech I225 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni I195 speed at end of launch guide too slow (41ft/s)
failedG AeroTech I154 speed at end of launch guide too slow (30ft/s)
failedG Cesaroni I170 speed at end of launch guide too slow (40ft/s)
failed5 AeroTech I49 average thrust fails 5:1 thrust/weight ratio (1:1)
failedG Cesaroni I55 speed at end of launch guide too slow (5ft/s)
failedG Cesaroni I175 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni I236 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni I223 speed at end of launch guide too slow (43ft/s)
failedG AeroTech I59 speed at end of launch guide too slow (32ft/s)
failedG Loki I110 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni I242 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni I125 speed at end of launch guide too slow (35ft/s)
failedG Cesaroni J94 speed at end of launch guide too slow (27ft/s)

G These simulations were run with a launch guide length of 10ft (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.)

5 The 5:1 thrust-to-weight ratio check is a useful rule of thumb, but it does break down for motors with unusual thrust curves. For example, motors with a high initial thrust and a long tail-off may fail this test but still be safe for use.

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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