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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 115 motors that fit and appear to have enough thrust (690 motors didn't fit, 5 motors failed safety checks). 120 motor had thrust curves available and 253 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:   PML Miranda-38mm
Owner: Michael Monteith
Body Diameter: 3.00in
Dry Weight: 3.40lb
MMT Diameter: 38.0mm
MMT Length: 14.50in
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 Loki G69 3.93lb 58ft/s 153ft/s 4.6G 471ft 5.9s 4s
OK AeroTech G61 3.83lb 53ft/s 149ft/s 3.8G 474ft 6.1s 4s
OK AeroTech G67 3.84lb 56ft/s 159ft/s 4.3G 482ft 6.1s 5s
OK Loki G70 3.93lb 61ft/s 162ft/s 4.8G 530ft 6.3s 5s
OK Loki G80 3.96lb 64ft/s 171ft/s 5.4G 553ft 6.3s 5s
OK AeroTech G339 3.80lb 126ft/s 203ft/s 21.3G 576ft 6.0s 6s
OK Loki G94 3.93lb 70ft/s 183ft/s 6.6G 594ft 6.5s 5s
OK Cesaroni G69 3.83lb 52ft/s 177ft/s 4.1G 612ft 6.9s 5s
OK Cesaroni G79 3.90lb 52ft/s 190ft/s 4.5G 628ft 6.9s 5s
OK Loki G66 3.95lb 64ft/s 181ft/s 5.6G 668ft 7.1s 5s
OK Cesaroni G185 3.82lb 89ft/s 220ft/s 11.2G 688ft 6.7s 6s
OK AeroTech G69 3.84lb 53ft/s 194ft/s 4.0G 690ft 7.2s 5s
OK Cesaroni G60 3.85lb 54ft/s 191ft/s 4.0G 705ft 7.4s 5s
OK Cesaroni G78 3.83lb 56ft/s 207ft/s 6.7G 758ft 7.5s 6s
OK Cesaroni G115 3.83lb 69ft/s 225ft/s 6.7G 780ft 7.3s 6s
OK AeroTech H73 4.08lb 51ft/s 234ft/s 3.9G 1,051ft 9.0s 6s
OK Loki H100 4.14lb 70ft/s 280ft/s 7.0G 1,241ft 9.0s 7s
warningsW AeroTech H283 3.94lb 117ft/s 340ft/s 18.2G 1,351ft 8.9s 8s
OK AeroTech H148 4.08lb 85ft/s 325ft/s 9.7G 1,415ft 9.4s 8s
OK AeroTech H130 3.92lb 99ft/s 321ft/s 13.9G 1,448ft 9.4s 8s
OK AeroTech H123 4.01lb 74ft/s 319ft/s 7.4G 1,556ft 10.0s 8s
OK AeroTech H100 3.98lb 67ft/s 323ft/s 6.4G 1,561ft 10.1s 8s
OK AeroTech H669 3.96lb 179ft/s 396ft/s 61.9G 1,563ft 9.3s 9s
OK Loki H90 4.14lb 72ft/s 312ft/s 7.0G 1,573ft 10.2s 8s
OK Cesaroni H123 4.05lb 67ft/s 352ft/s 7.3G 1,613ft 10.2s 8s
OK Loki H144 4.14lb 95ft/s 351ft/s 12.5G 1,636ft 9.9s 8s
OK Loki H125 4.15lb 86ft/s 339ft/s 10.1G 1,638ft 10.1s 8s
OK Cesaroni H143 4.17lb 70ft/s 363ft/s 7.9G 1,654ft 10.2s 9s
OK AeroTech H219 3.98lb 108ft/s 385ft/s 15.6G 1,672ft 9.8s 9s
OK AeroTech H242 3.98lb 96ft/s 391ft/s 12.5G 1,763ft 10.2s 9s
OK AeroTech H112 4.24lb 59ft/s 333ft/s 4.9G 1,782ft 11.1s 8s
OK Loki H160 4.14lb 104ft/s 380ft/s 14.7G 1,790ft 10.2s 9s
OK Cesaroni H400 4.03lb 130ft/s 442ft/s 24.0G 1,862ft 10.1s 10s
OK Cesaroni H120 4.05lb 73ft/s 381ft/s 7.2G 1,865ft 10.8s 9s
OK Cesaroni H110 4.12lb 63ft/s 376ft/s 5.8G 1,900ft 11.1s 8s
OK Cesaroni H125 4.05lb 71ft/s 397ft/s 7.5G 1,926ft 11.0s 9s
OK Cesaroni H152 4.06lb 80ft/s 419ft/s 10.8G 2,041ft 11.0s 9s
OK Cesaroni H100 4.12lb 64ft/s 389ft/s 5.5G 2,050ft 11.6s 9s
OK AeroTech H178 4.11lb 79ft/s 440ft/s 10.9G 2,078ft 11.0s 9s
OK Cesaroni H225 3.83lb 101ft/s 467ft/s 14.2G 2,097ft 10.8s 10s
OK AeroTech H45 4.20lb 52ft/s 320ft/s 3.6G 2,273ft 13.1s 7s
OK AeroTech I218 4.22lb 104ft/s 480ft/s 14.3G 2,325ft 11.4s 10s
OK AeroTech H550 4.11lb 159ft/s 535ft/s 34.7G 2,334ft 11.0s 10s
OK AeroTech H550 4.10lb 160ft/s 541ft/s 35.0G 2,342ft 11.0s 10s
OK AeroTech H170 4.13lb 83ft/s 469ft/s 10.2G 2,356ft 11.6s 10s
warningsW Cesaroni H565 4.20lb 156ft/s 542ft/s 34.0G 2,362ft 11.1s 11s
OK AeroTech I180 4.25lb 120ft/s 457ft/s 18.2G 2,380ft 11.5s 10s
OK AeroTech H999 4.13lb 215ft/s 561ft/s 86.6G 2,385ft 11.0s 11s
OK AeroTech I161 4.21lb 88ft/s 468ft/s 10.7G 2,448ft 11.8s 10s
OK Cesaroni I180 4.27lb 82ft/s 497ft/s 10.2G 2,485ft 11.9s 10s
OK AeroTech I140 4.18lb 80ft/s 463ft/s 8.7G 2,522ft 12.2s 10s
OK AeroTech I225 4.47lb 88ft/s 512ft/s 13.1G 2,582ft 12.0s 10s
OK AeroTech I245 4.20lb 122ft/s 524ft/s 21.2G 2,596ft 11.7s 10s
OK AeroTech I357 4.16lb 119ft/s 544ft/s 19.5G 2,620ft 11.7s 10s
OK Cesaroni I212 4.45lb 85ft/s 529ft/s 12.0G 2,635ft 12.2s 10s
OK Cesaroni I566 4.25lb 150ft/s 620ft/s 32.2G 2,752ft 11.7s 11s
OK AeroTech I154 4.48lb 71ft/s 469ft/s 7.5G 2,759ft 13.0s 10s
OK Cesaroni I195 4.32lb 92ft/s 561ft/s 11.4G 2,935ft 12.7s 11s
OK Cesaroni I345 4.27lb 118ft/s 625ft/s 19.5G 2,969ft 12.3s 11s
OK AeroTech I285 4.49lb 113ft/s 600ft/s 18.0G 2,997ft 12.5s 11s
OK Cesaroni I170 4.26lb 89ft/s 574ft/s 10.9G 3,029ft 12.9s 10s
OK Cesaroni I800 4.41lb 176ft/s 686ft/s 45.8G 3,031ft 12.1s 12s
OK Cesaroni I175 4.36lb 83ft/s 563ft/s 9.0G 3,039ft 13.0s 11s
OK Cesaroni I236 4.28lb 101ft/s 604ft/s 15.3G 3,090ft 12.8s 11s
OK AeroTech I1299 4.33lb 238ft/s 715ft/s 79.2G 3,098ft 12.1s 12s
OK AeroTech I305 4.68lb 116ft/s 613ft/s 18.9G 3,120ft 12.6s 11s
OK AeroTech I211 4.40lb 104ft/s 587ft/s 15.4G 3,161ft 12.9s 11s
OK Cesaroni I223 4.49lb 89ft/s 610ft/s 11.9G 3,166ft 13.0s 11s
OK AeroTech I195 4.66lb 108ft/s 579ft/s 16.5G 3,168ft 12.9s 11s
OK AeroTech I300 4.37lb 122ft/s 634ft/s 22.9G 3,192ft 12.7s 11s
OK Loki I316 4.59lb 130ft/s 653ft/s 23.7G 3,377ft 12.9s 11s
OK Cesaroni I287 4.73lb 102ft/s 676ft/s 15.5G 3,460ft 13.3s 12s
warningsW Loki I110 4.70lb 75ft/s 532ft/s 11.6G 3,476ft 14.1s 10s
OK Loki I210 4.59lb 116ft/s 624ft/s 20.7G 3,529ft 13.4s 11s
OK Loki I405 4.60lb 167ft/s 707ft/s 38.3G 3,530ft 13.0s 12s
OK Cesaroni I285 4.52lb 106ft/s 707ft/s 16.6G 3,672ft 13.6s 12s
OK Loki I377 4.63lb 148ft/s 720ft/s 30.9G 3,706ft 13.3s 12s
OK Cesaroni I255 4.54lb 105ft/s 702ft/s 14.8G 3,725ft 13.7s 12s
OK Loki I430 4.59lb 128ft/s 767ft/s 25.1G 3,726ft 13.4s 12s
OK AeroTech I59 4.47lb 72ft/s 362ft/s 7.5G 3,732ft 16.1s 8s
OK AeroTech I327 4.78lb 117ft/s 736ft/s 19.3G 3,769ft 13.6s 12s
OK AeroTech I366 4.62lb 131ft/s 752ft/s 22.8G 3,788ft 13.5s 12s
OK AeroTech I364 4.89lb 113ft/s 732ft/s 18.5G 3,788ft 13.6s 12s
OK AMW I297 4.70lb 110ft/s 731ft/s 16.9G 3,795ft 13.7s 12s
OK Cesaroni I470 4.49lb 139ft/s 808ft/s 26.9G 3,835ft 13.4s 12s
OK Cesaroni I303 4.50lb 113ft/s 746ft/s 19.6G 3,865ft 13.7s 12s
OK AeroTech I280 4.76lb 103ft/s 742ft/s 14.9G 3,909ft 13.9s 12s
OK Cesaroni I242 4.61lb 97ft/s 723ft/s 12.9G 3,930ft 14.1s 12s
OK AeroTech I435 4.54lb 160ft/s 817ft/s 36.5G 3,996ft 13.5s 12s
OK KBA I550 4.97lb 139ft/s 823ft/s 28.6G 4,021ft 13.8s 13s
OK KBA I301 5.00lb 105ft/s 737ft/s 17.3G 4,034ft 14.2s 12s
OK Cesaroni I350 5.12lb 112ft/s 772ft/s 16.6G 4,038ft 14.0s 12s
OK Cesaroni I125 4.83lb 81ft/s 581ft/s 11.5G 4,072ft 15.1s 11s
OK AeroTech I284 4.62lb 128ft/s 784ft/s 22.8G 4,091ft 13.9s 12s
OK AeroTech I500 4.67lb 135ft/s 880ft/s 26.8G 4,263ft 13.9s 13s
warningsW Cesaroni I540 4.72lb 146ft/s 912ft/s 29.5G 4,310ft 13.9s 13s
OK AeroTech I600 4.73lb 165ft/s 905ft/s 38.1G 4,317ft 13.9s 13s
OK KBA J520 4.99lb 140ft/s 874ft/s 31.1G 4,332ft 14.2s 13s
OK AeroTech J420 4.83lb 135ft/s 869ft/s 25.1G 4,388ft 14.2s 13s
OK AeroTech I350 4.76lb 123ft/s 880ft/s 22.4G 4,389ft 14.2s 13s
OK AeroTech J350 4.87lb 154ft/s 867ft/s 37.1G 4,392ft 14.1s 12s
OK KBA J740 5.00lb 173ft/s 939ft/s 42.0G 4,408ft 14.0s 13s
OK AeroTech J340 4.67lb 131ft/s 861ft/s 27.9G 4,419ft 14.1s 12s
OK Cesaroni J335 4.78lb 120ft/s 845ft/s 18.4G 4,420ft 14.4s 12s
OK Cesaroni I216 4.72lb 102ft/s 754ft/s 15.1G 4,452ft 14.8s 12s
OK Cesaroni J285 4.71lb 108ft/s 826ft/s 16.6G 4,481ft 14.6s 12s
OK Cesaroni J357 4.72lb 122ft/s 878ft/s 23.5G 4,486ft 14.3s 13s
OK Cesaroni J270 4.84lb 99ft/s 818ft/s 13.0G 4,492ft 14.7s 12s
OK Cesaroni J316 4.74lb 117ft/s 830ft/s 19.8G 4,522ft 14.6s 12s
OK AeroTech J425 4.79lb 115ft/s 933ft/s 20.3G 4,579ft 14.4s 13s
OK Cesaroni J290 4.85lb 112ft/s 846ft/s 17.2G 4,641ft 14.8s 12s
OK Cesaroni J94 4.86lb 66ft/s 564ft/s 6.5G 4,693ft 16.9s 10s
OK AeroTech J500 4.84lb 160ft/s 964ft/s 35.8G 4,747ft 14.4s 13s
OK AeroTech J270 4.82lb 106ft/s 852ft/s 15.7G 4,753ft 14.9s 12s
OK AeroTech J435 4.78lb 148ft/s 1,007ft/s 31.5G 5,032ft 14.7s 13s

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 Cesaroni G46 speed at end of launch guide too slow (43ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (41ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (43ft/s)

G These simulations were run with a launch guide length of 12ft (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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