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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 74 motors that fit and appear to have enough thrust (713 motors didn't fit, 18 motors failed safety checks). 92 motor had thrust curves available and 206 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:   Cherokee-G w/38mm MMT
Owner: Michael Erwin
Body Diameter: 3.10in
Dry Weight: 1,500g
MMT Diameter: 38.0mm
MMT Length: 300.0mm
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 G80 1,755g 48ft/s 176ft/s 5.5G 571ft 6.4s 5s
OK AeroTech G339 1,681g 96ft/s 208ft/s 21.9G 592ft 6.0s 6s
OK Loki G94 1,740g 52ft/s 188ft/s 6.7G 613ft 6.5s 5s
OK Loki G66 1,750g 48ft/s 186ft/s 5.8G 689ft 7.1s 5s
OK Cesaroni G185 1,688g 64ft/s 226ft/s 11.5G 706ft 6.7s 6s
OK Cesaroni G115 1,695g 51ft/s 231ft/s 6.9G 800ft 7.4s 6s
OK Loki H100 1,835g 51ft/s 286ft/s 7.2G 1,257ft 9.0s 7s
warningsW AeroTech H283 1,747g 85ft/s 347ft/s 18.6G 1,359ft 8.8s 8s
OK AeroTech H148 1,809g 63ft/s 331ft/s 9.9G 1,425ft 9.4s 8s
OK AeroTech H130 1,737g 76ft/s 327ft/s 14.2G 1,457ft 9.3s 8s
OK AeroTech H669 1,752g 133ft/s 406ft/s 63.5G 1,562ft 9.2s 9s
OK AeroTech H123 1,775g 55ft/s 325ft/s 7.6G 1,566ft 10.0s 8s
OK AeroTech H100 1,761g 49ft/s 329ft/s 6.5G 1,571ft 10.1s 8s
OK Loki H90 1,835g 55ft/s 317ft/s 7.1G 1,584ft 10.2s 8s
OK Cesaroni H123 1,797g 49ft/s 359ft/s 7.5G 1,619ft 10.1s 8s
OK Loki H144 1,836g 74ft/s 357ft/s 12.8G 1,639ft 9.8s 8s
OK Loki H125 1,842g 64ft/s 345ft/s 10.4G 1,644ft 10.1s 8s
OK Cesaroni H143 1,847g 51ft/s 371ft/s 8.1G 1,658ft 10.2s 8s
OK AeroTech H219 1,761g 77ft/s 397ft/s 16.0G 1,677ft 9.7s 9s
OK AeroTech H242 1,764g 72ft/s 399ft/s 12.8G 1,761ft 10.1s 9s
OK Loki H160 1,835g 79ft/s 387ft/s 15.0G 1,787ft 10.1s 9s
OK Cesaroni H400 1,784g 95ft/s 452ft/s 24.5G 1,851ft 10.0s 9s
OK Cesaroni H120 1,795g 53ft/s 388ft/s 7.4G 1,864ft 10.8s 9s
OK Cesaroni H125 1,793g 51ft/s 404ft/s 7.6G 1,922ft 10.9s 9s
OK Cesaroni H152 1,798g 59ft/s 427ft/s 11.0G 2,030ft 10.9s 9s
OK Cesaroni H100 1,827g 48ft/s 395ft/s 5.6G 2,047ft 11.5s 9s
OK AeroTech H178 1,824g 60ft/s 448ft/s 11.1G 2,064ft 10.9s 9s
OK Cesaroni H225 1,693g 78ft/s 477ft/s 14.5G 2,077ft 10.7s 9s
OK AeroTech I218 1,872g 76ft/s 488ft/s 14.6G 2,298ft 11.2s 10s
OK AeroTech H550 1,823g 118ft/s 546ft/s 35.5G 2,299ft 10.8s 10s
OK AeroTech H550 1,816g 118ft/s 552ft/s 35.8G 2,304ft 10.8s 10s
warningsW Cesaroni H565 1,862g 117ft/s 553ft/s 34.5G 2,325ft 10.9s 10s
OK AeroTech H170 1,830g 64ft/s 477ft/s 10.4G 2,331ft 11.5s 9s
OK AeroTech H999 1,831g 162ft/s 573ft/s 88.6G 2,345ft 10.8s 10s
OK AeroTech I180 1,885g 87ft/s 463ft/s 18.6G 2,352ft 11.3s 9s
OK AeroTech I161 1,866g 65ft/s 475ft/s 11.0G 2,419ft 11.7s 9s
OK Cesaroni I180 1,894g 60ft/s 505ft/s 10.4G 2,453ft 11.7s 10s
OK AeroTech I140 1,856g 60ft/s 468ft/s 8.9G 2,493ft 12.0s 10s
OK AeroTech I225 1,986g 66ft/s 520ft/s 13.3G 2,544ft 11.8s 10s
OK AeroTech I245 1,865g 91ft/s 531ft/s 21.7G 2,553ft 11.5s 10s
OK AeroTech I357 1,843g 90ft/s 553ft/s 20.0G 2,574ft 11.5s 10s
OK Cesaroni I212 1,975g 64ft/s 537ft/s 12.2G 2,595ft 12.0s 10s
OK Cesaroni I566 1,884g 109ft/s 632ft/s 32.9G 2,694ft 11.5s 11s
OK AeroTech I154 1,992g 54ft/s 474ft/s 7.6G 2,726ft 12.8s 9s
OK Cesaroni I195 1,917g 64ft/s 568ft/s 11.6G 2,881ft 12.5s 10s
OK Cesaroni I345 1,895g 90ft/s 635ft/s 20.0G 2,904ft 12.1s 11s
OK AeroTech I285 1,993g 83ft/s 608ft/s 18.4G 2,934ft 12.2s 11s
OK Cesaroni I800 1,957g 131ft/s 700ft/s 46.5G 2,955ft 11.9s 11s
OK Cesaroni I170 1,892g 64ft/s 581ft/s 11.2G 2,971ft 12.6s 10s
OK Cesaroni I175 1,938g 62ft/s 570ft/s 9.2G 2,983ft 12.8s 10s
OK AeroTech I1299 1,922g 175ft/s 730ft/s 80.9G 3,015ft 11.8s 12s
OK Cesaroni I236 1,900g 73ft/s 612ft/s 15.7G 3,023ft 12.5s 11s
OK AeroTech I305 2,081g 84ft/s 621ft/s 19.3G 3,048ft 12.4s 11s
OK AeroTech I211 1,955g 77ft/s 593ft/s 15.8G 3,093ft 12.6s 10s
OK Cesaroni I223 1,994g 67ft/s 617ft/s 12.1G 3,097ft 12.7s 11s
OK AeroTech I195 2,072g 79ft/s 584ft/s 16.9G 3,102ft 12.7s 10s
OK AeroTech I300 1,941g 94ft/s 643ft/s 23.5G 3,117ft 12.4s 11s
OK Loki I316 2,040g 102ft/s 660ft/s 24.2G 3,293ft 12.6s 11s
OK Cesaroni I287 2,105g 75ft/s 684ft/s 15.8G 3,373ft 13.0s 11s
warningsW Loki I110 2,089g 57ft/s 535ft/s 11.9G 3,410ft 13.9s 10s
OK Loki I405 2,043g 127ft/s 716ft/s 39.2G 3,432ft 12.7s 12s
OK Loki I210 2,040g 90ft/s 629ft/s 21.1G 3,444ft 13.1s 11s
OK Cesaroni I285 2,006g 79ft/s 715ft/s 16.9G 3,571ft 13.2s 11s
OK Loki I377 2,060g 107ft/s 727ft/s 31.6G 3,601ft 13.0s 12s
OK Loki I430 2,040g 94ft/s 777ft/s 25.6G 3,619ft 13.1s 12s
OK Cesaroni I255 2,016g 74ft/s 709ft/s 15.1G 3,624ft 13.4s 11s
OK AeroTech I366 2,056g 97ft/s 760ft/s 23.3G 3,676ft 13.1s 12s
OK AeroTech I59 1,987g 54ft/s 363ft/s 7.7G 3,689ft 15.9s 7s
OK Cesaroni I470 1,995g 100ft/s 819ft/s 27.5G 3,715ft 13.0s 12s
OK Cesaroni I303 2,000g 82ft/s 754ft/s 20.1G 3,751ft 13.4s 12s
OK Cesaroni I242 2,050g 71ft/s 728ft/s 13.2G 3,820ft 13.8s 11s
OK AeroTech I435 2,018g 121ft/s 827ft/s 37.2G 3,866ft 13.2s 12s
OK AeroTech I284 2,056g 97ft/s 790ft/s 23.2G 3,961ft 13.5s 12s
OK Cesaroni J357 2,101g 93ft/s 884ft/s 24.0G 4,332ft 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 AeroTech G67 speed at end of launch guide too slow (42ft/s)
failedG Loki G69 speed at end of launch guide too slow (44ft/s)
failedG AeroTech G61 speed at end of launch guide too slow (40ft/s)
failedG Loki G70 speed at end of launch guide too slow (45ft/s)
failedG Cesaroni G69 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni G46 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni G79 speed at end of launch guide too slow (38ft/s)
failedG Cesaroni G60 speed at end of launch guide too slow (40ft/s)
failedG AeroTech G69 speed at end of launch guide too slow (40ft/s)
failedG Cesaroni G58 speed at end of launch guide too slow (33ft/s)
failedG Cesaroni G78 speed at end of launch guide too slow (41ft/s)
failedG Cesaroni G50 speed at end of launch guide too slow (30ft/s)
failedG AeroTech H73 speed at end of launch guide too slow (38ft/s)
failedG AeroTech H112 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni H110 speed at end of launch guide too slow (47ft/s)
failedG AeroTech H45 speed at end of launch guide too slow (40ft/s)
failedG AeroTech I49 speed at end of launch guide too slow (29ft/s)
failedG Cesaroni I55 speed at end of launch guide too slow (32ft/s)

G These simulations were run with a launch guide length of 7ft (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:
Unable to generate download file from guide run!
Client: 34.231.247.139
Protocol: HTTP/1.1
URI: /motorguide.jsp
Method: GET
Query: rocket=7785

java.io.FileNotFoundException: /home/orgthrus/public_html/guide/JIHZXH/Cherokee-G_w/38mm_MMT-results-pass.csv (No such file or directory)

  1. java.io.FileOutputStream.open(Native Method)
  2. java.io.FileOutputStream.(FileOutputStream.java:179)
  3. java.io.FileOutputStream.(FileOutputStream.java:131)
  4. java.io.FileWriter.(FileWriter.java:73)
  5. org.thrustcurve.sim.GuideExporter.export(GuideExporter.java:100)
  6. org.thrustcurve.jsp.GuideResultATag.doTag(GuideResultATag.java:184)
  7. org.thrustcurve.jsp.SimpleTagBase.doStartTag(SimpleTagBase.java:16)
  8. org.apache.jsp.motorguide_jsp._jspx_meth_tc_005fguideResultA_005f0(motorguide_jsp.java:1062)
  9. org.apache.jsp.motorguide_jsp._jspService(motorguide_jsp.java:988)
  10. org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
  11. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
  12. org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:371)
  13. org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
  14. org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
  15. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
  16. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
  17. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
  18. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  19. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
  20. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  21. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  22. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  23. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
  24. org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
  25. org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
  26. org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:775)
  27. org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:704)
  28. org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:897)
  29. org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
  30. java.lang.Thread.run(Thread.java:595)

Please let us know about this problem (including the above info).

,
Unable to generate download file from guide run!
Client: 34.231.247.139
Protocol: HTTP/1.1
URI: /motorguide.jsp
Method: GET
Query: rocket=7785

java.io.FileNotFoundException: /home/orgthrus/public_html/guide/JIHZXH/Cherokee-G_w/38mm_MMT-results-fail.csv (No such file or directory)

  1. java.io.FileOutputStream.open(Native Method)
  2. java.io.FileOutputStream.(FileOutputStream.java:179)
  3. java.io.FileOutputStream.(FileOutputStream.java:131)
  4. java.io.FileWriter.(FileWriter.java:73)
  5. org.thrustcurve.sim.GuideExporter.export(GuideExporter.java:100)
  6. org.thrustcurve.jsp.GuideResultATag.doTag(GuideResultATag.java:184)
  7. org.thrustcurve.jsp.SimpleTagBase.doStartTag(SimpleTagBase.java:16)
  8. org.apache.jsp.motorguide_jsp._jspx_meth_tc_005fguideResultA_005f1(motorguide_jsp.java:1083)
  9. org.apache.jsp.motorguide_jsp._jspService(motorguide_jsp.java:992)
  10. org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
  11. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
  12. org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:371)
  13. org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
  14. org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
  15. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
  16. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
  17. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
  18. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  19. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
  20. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  21. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  22. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  23. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
  24. org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
  25. org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
  26. org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:775)
  27. org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:704)
  28. org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:897)
  29. org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
  30. java.lang.Thread.run(Thread.java:595)

Please let us know about this problem (including the above info).

, or
Unable to generate download file from guide run!
Client: 34.231.247.139
Protocol: HTTP/1.1
URI: /motorguide.jsp
Method: GET
Query: rocket=7785

java.io.FileNotFoundException: /home/orgthrus/public_html/guide/JIHZXH/Cherokee-G_w/38mm_MMT-results-all.csv (No such file or directory)

  1. java.io.FileOutputStream.open(Native Method)
  2. java.io.FileOutputStream.(FileOutputStream.java:179)
  3. java.io.FileOutputStream.(FileOutputStream.java:131)
  4. java.io.FileWriter.(FileWriter.java:73)
  5. org.thrustcurve.sim.GuideExporter.export(GuideExporter.java:100)
  6. org.thrustcurve.jsp.GuideResultATag.doTag(GuideResultATag.java:184)
  7. org.thrustcurve.jsp.SimpleTagBase.doStartTag(SimpleTagBase.java:16)
  8. org.apache.jsp.motorguide_jsp._jspx_meth_tc_005fguideResultA_005f2(motorguide_jsp.java:1104)
  9. org.apache.jsp.motorguide_jsp._jspService(motorguide_jsp.java:997)
  10. org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
  11. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
  12. org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:371)
  13. org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
  14. org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
  15. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
  16. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
  17. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
  18. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  19. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
  20. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  21. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  22. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  23. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
  24. org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
  25. org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
  26. org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:775)
  27. org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:704)
  28. org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:897)
  29. org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
  30. java.lang.Thread.run(Thread.java:595)

Please let us know about this problem (including the above info).

.
 
RockSim  
Unable to generate download file from guide run!
Client: 34.231.247.139
Protocol: HTTP/1.1
URI: /motorguide.jsp
Method: GET
Query: rocket=7785

java.io.FileNotFoundException: /home/orgthrus/public_html/guide/JIHZXH/Cherokee-G_w/38mm_MMT-smartsim-all.csv (No such file or directory)

  1. java.io.FileOutputStream.open(Native Method)
  2. java.io.FileOutputStream.(FileOutputStream.java:179)
  3. java.io.FileOutputStream.(FileOutputStream.java:131)
  4. java.io.FileWriter.(FileWriter.java:73)
  5. org.thrustcurve.sim.GuideExporter.export(GuideExporter.java:100)
  6. org.thrustcurve.jsp.GuideResultATag.doTag(GuideResultATag.java:184)
  7. org.thrustcurve.jsp.SimpleTagBase.doStartTag(SimpleTagBase.java:16)
  8. org.apache.jsp.motorguide_jsp._jspx_meth_tc_005fguideResultA_005f3(motorguide_jsp.java:1124)
  9. org.apache.jsp.motorguide_jsp._jspService(motorguide_jsp.java:1008)
  10. org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
  11. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
  12. org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:371)
  13. org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
  14. org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
  15. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
  16. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
  17. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
  18. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  19. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
  20. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  21. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  22. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  23. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
  24. org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
  25. org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
  26. org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:775)
  27. org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:704)
  28. org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:897)
  29. org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
  30. java.lang.Thread.run(Thread.java:595)

Please let us know about this problem (including the above info).

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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