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Motor Guide Results

Here is your handy guide to the motors that might work with your rocket. We found 88 motors that fit and appear to have enough thrust (712 motors didn't fit, 9 motors failed safety checks). 97 motor had thrust curves available and 180 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:   Smokin' Rockets Mega Nuk w/75
Owner: John Sigmon
Body Diameter: 7.75in
Dry Weight: 45.00lb
MMT Diameter: 75.0mm
MMT Length: 36.00in
CD: 0.55

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 K630 52.83lb 53ft/s 129ft/s 2.8G 392ft 5.9s 4s
OK Contrail K707 53.10lb 66ft/s 132ft/s 4.9G 404ft 5.7s 4s
OK Contrail K456 53.17lb 51ft/s 126ft/s 2.8G 481ft 6.7s 3s
OK AeroTech K1499 48.84lb 86ft/s 169ft/s 7.0G 491ft 5.9s 5s
OK Cesaroni K735 50.53lb 50ft/s 198ft/s 3.0G 823ft 8.4s 6s
OK Contrail K543 52.95lb 53ft/s 182ft/s 2.8G 832ft 8.6s 5s
OK AeroTech K780 51.47lb 56ft/s 239ft/s 3.2G 1,147ft 9.7s 7s
OK AeroTech K560 51.05lb 48ft/s 206ft/s 2.5G 1,163ft 10.3s 5s
OK Cesaroni K661 50.57lb 48ft/s 231ft/s 2.4G 1,179ft 10.3s 7s
OK Cesaroni K1085 50.36lb 64ft/s 270ft/s 4.3G 1,289ft 9.9s 8s
OK Cesaroni K2000 50.43lb 97ft/s 300ft/s 10.2G 1,350ft 9.4s 8s
OK AeroTech K1000 50.74lb 66ft/s 276ft/s 4.1G 1,385ft 10.2s 8s
OK Cesaroni L820 52.54lb 49ft/s 292ft/s 3.2G 1,638ft 11.6s 8s
OK Loki L780 52.72lb 48ft/s 295ft/s 3.0G 1,683ft 11.9s 8s
OK Cesaroni L910 50.77lb 60ft/s 304ft/s 3.7G 1,705ft 11.5s 8s
OK Gorilla L789 52.45lb 51ft/s 319ft/s 2.9G 1,977ft 12.8s 9s
OK Loki L930 52.80lb 57ft/s 353ft/s 3.8G 2,277ft 13.3s 9s
OK Gorilla L985 53.01lb 56ft/s 370ft/s 3.8G 2,286ft 13.3s 10s
OK AeroTech L1150 53.10lb 68ft/s 373ft/s 4.6G 2,291ft 12.8s 10s
OK Cesaroni L3200 52.20lb 120ft/s 429ft/s 15.3G 2,322ft 11.9s 11s
OK Cesaroni L851 53.35lb 53ft/s 356ft/s 3.2G 2,364ft 13.8s 9s
OK AeroTech L875 55.09lb 55ft/s 358ft/s 3.2G 2,374ft 13.7s 9s
OK Gorilla L1150 52.72lb 66ft/s 383ft/s 6.6G 2,416ft 13.1s 10s
OK Cesaroni L995 52.92lb 68ft/s 368ft/s 4.5G 2,421ft 13.3s 10s
OK AeroTech L850 53.25lb 63ft/s 355ft/s 4.1G 2,439ft 13.5s 9s
OK AeroTech L900 55.41lb 55ft/s 364ft/s 3.3G 2,451ft 13.9s 9s
OK Cesaroni L800 52.74lb 62ft/s 349ft/s 4.1G 2,470ft 13.9s 9s
OK Gorilla L1112 53.00lb 66ft/s 391ft/s 4.5G 2,502ft 13.4s 10s
OK AeroTech L1040 55.40lb 59ft/s 382ft/s 4.2G 2,526ft 13.7s 10s
OK Cesaroni L1050 52.60lb 65ft/s 388ft/s 4.2G 2,548ft 13.6s 10s
OK AeroTech L1256 53.28lb 74ft/s 408ft/s 5.3G 2,615ft 13.5s 10s
OK Loki L840 53.26lb 59ft/s 369ft/s 4.0G 2,633ft 14.1s 9s
OK Cesaroni L1720 52.37lb 84ft/s 443ft/s 7.4G 2,666ft 13.2s 11s
OK AeroTech L1520 53.05lb 80ft/s 430ft/s 6.3G 2,669ft 13.3s 11s
OK Loki L1482 52.80lb 74ft/s 447ft/s 6.2G 2,776ft 13.6s 11s
OK Cesaroni L1355 55.94lb 77ft/s 423ft/s 6.2G 2,780ft 13.8s 11s
OK AeroTech L1390 53.55lb 75ft/s 434ft/s 6.0G 2,809ft 13.8s 11s
OK AeroTech L1170 56.00lb 69ft/s 430ft/s 4.9G 2,915ft 14.3s 11s
OK AeroTech L1250 57.45lb 70ft/s 434ft/s 5.0G 2,991ft 14.5s 11s
OK Gorilla L1065 56.82lb 74ft/s 436ft/s 6.1G 3,166ft 14.6s 11s
OK Cesaroni L1350 52.87lb 75ft/s 470ft/s 5.6G 3,198ft 14.6s 11s
OK AMW L1290 56.90lb 67ft/s 473ft/s 4.9G 3,341ft 15.3s 12s
OK AeroTech L1420 55.06lb 76ft/s 498ft/s 5.9G 3,443ft 15.1s 12s
OK AeroTech L1365 55.82lb 77ft/s 496ft/s 5.6G 3,538ft 15.4s 12s
OK Cesaroni L1410 56.28lb 71ft/s 506ft/s 5.6G 3,578ft 15.5s 12s
OK Cesaroni L1685 58.34lb 91ft/s 525ft/s 7.7G 3,761ft 15.4s 12s
OK Cesaroni L1115 54.71lb 75ft/s 485ft/s 5.8G 3,764ft 16.1s 11s
OK Cesaroni L1395 54.53lb 77ft/s 526ft/s 6.4G 3,767ft 15.7s 12s
OK Loki M1200 56.83lb 63ft/s 507ft/s 5.0G 3,840ft 16.3s 12s
OK Gorilla M745 57.39lb 72ft/s 414ft/s 5.1G 3,865ft 17.0s 10s
OK Cesaroni L2375 54.17lb 99ft/s 586ft/s 10.0G 3,887ft 15.3s 13s
OK Cesaroni M1101 55.89lb 68ft/s 499ft/s 4.8G 3,936ft 16.6s 12s
OK AeroTech L2200 55.54lb 102ft/s 577ft/s 11.7G 3,978ft 15.3s 13s
OK AeroTech M1350 55.60lb 81ft/s 526ft/s 6.1G 3,981ft 16.0s 12s
OK Loki M900 57.19lb 53ft/s 478ft/s 3.2G 4,007ft 17.5s 12s
OK AeroTech M1500 55.79lb 75ft/s 546ft/s 5.9G 4,016ft 16.1s 13s
OK Gorilla M1355 57.13lb 73ft/s 533ft/s 6.5G 4,049ft 16.2s 12s
OK AeroTech M1550 57.44lb 87ft/s 567ft/s 7.3G 4,242ft 16.4s 13s
OK AeroTech M1297 55.22lb 84ft/s 543ft/s 7.1G 4,266ft 16.6s 12s
OK Cesaroni M1230 55.68lb 72ft/s 538ft/s 5.1G 4,275ft 17.0s 12s
OK AeroTech M1780 55.39lb 96ft/s 591ft/s 8.7G 4,346ft 16.3s 13s
OK AeroTech M2050 55.05lb 97ft/s 613ft/s 9.5G 4,396ft 16.3s 14s
OK Cesaroni M2250 54.73lb 103ft/s 626ft/s 10.0G 4,405ft 16.0s 14s
OK Cesaroni M1830 54.97lb 90ft/s 611ft/s 8.1G 4,489ft 16.5s 13s
OK Gorilla M1665 57.39lb 88ft/s 590ft/s 8.0G 4,512ft 16.6s 13s
OK Cesaroni M1160 57.56lb 65ft/s 549ft/s 4.4G 4,520ft 17.7s 13s
OK AeroTech M650 56.30lb 64ft/s 429ft/s 4.3G 4,576ft 18.9s 7s
OK Cesaroni M1770 58.21lb 82ft/s 621ft/s 6.8G 4,623ft 17.0s 14s
OK Cesaroni M1670 56.53lb 85ft/s 615ft/s 7.8G 4,774ft 17.2s 13s
OK Gorilla M1952 57.00lb 99ft/s 637ft/s 9.7G 4,789ft 16.9s 13s
OK Cesaroni M2075 60.85lb 101ft/s 635ft/s 9.9G 4,816ft 16.9s 14s
OK Cesaroni M1810 56.94lb 85ft/s 648ft/s 7.4G 4,894ft 17.3s 14s
OK Cesaroni M1401 57.73lb 74ft/s 605ft/s 5.5G 4,937ft 17.9s 13s
OK Cesaroni M1675 56.51lb 86ft/s 642ft/s 7.3G 4,987ft 17.4s 14s
OK Cesaroni M1400 56.69lb 85ft/s 602ft/s 7.7G 5,001ft 17.7s 13s
OK Cesaroni M3100 56.06lb 116ft/s 723ft/s 14.0G 5,002ft 16.6s 15s
OK Loki M1882 57.20lb 93ft/s 668ft/s 9.2G 5,049ft 17.2s 14s
OK Cesaroni M1300 57.47lb 105ft/s 584ft/s 10.1G 5,165ft 18.0s 13s
OK Loki M1650 57.41lb 101ft/s 629ft/s 13.6G 5,245ft 17.7s 13s
OK AeroTech M1315 57.44lb 78ft/s 603ft/s 6.0G 5,307ft 18.4s 13s
OK Loki M2550 57.19lb 108ft/s 730ft/s 11.0G 5,358ft 17.3s 15s
OK Cesaroni M1540 58.02lb 87ft/s 659ft/s 8.3G 5,484ft 18.3s 14s
OK Cesaroni M3700 57.74lb 128ft/s 787ft/s 15.3G 5,515ft 17.2s 15s
OK Cesaroni M840 60.33lb 69ft/s 530ft/s 6.3G 5,901ft 20.9s 12s
OK Cesaroni M2045 58.38lb 96ft/s 751ft/s 8.9G 5,938ft 18.4s 15s
OK Cesaroni M2150 58.94lb 95ft/s 765ft/s 9.1G 6,023ft 18.6s 15s
OK Cesaroni M1590 58.40lb 91ft/s 707ft/s 7.9G 6,157ft 19.1s 14s
OK Cesaroni M2020 60.50lb 98ft/s 802ft/s 8.9G 6,759ft 19.5s 15s

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 K555 speed at end of launch guide too slow (39ft/s)
failedG Cesaroni K510 speed at end of launch guide too slow (46ft/s)
failedG Cesaroni L585 speed at end of launch guide too slow (45ft/s)
failedG Gorilla L695 speed at end of launch guide too slow (43ft/s)
failedG Loki L480 speed at end of launch guide too slow (35ft/s)
failedG Gorilla L425 speed at end of launch guide too slow (44ft/s)
failedG Cesaroni L645 speed at end of launch guide too slow (46ft/s)
failedG Contrail L369 speed at end of launch guide too slow (36ft/s)
failedG Cesaroni L395 speed at end of launch guide too slow (36ft/s)

G These simulations were run with a launch guide length of 17ft (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: 35.168.111.191
Protocol: HTTP/1.1
URI: /motorguide.jsp
Method: GET
Query: rocket=6813

java.io.FileNotFoundException: /home/orgthrus/public_html/guide/OUMMZUE/Smokin'_Rockets_Mega_Nuk_w/75-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: 35.168.111.191
Protocol: HTTP/1.1
URI: /motorguide.jsp
Method: GET
Query: rocket=6813

java.io.FileNotFoundException: /home/orgthrus/public_html/guide/OUMMZUE/Smokin'_Rockets_Mega_Nuk_w/75-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: 35.168.111.191
Protocol: HTTP/1.1
URI: /motorguide.jsp
Method: GET
Query: rocket=6813

java.io.FileNotFoundException: /home/orgthrus/public_html/guide/OUMMZUE/Smokin'_Rockets_Mega_Nuk_w/75-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: 35.168.111.191
Protocol: HTTP/1.1
URI: /motorguide.jsp
Method: GET
Query: rocket=6813

java.io.FileNotFoundException: /home/orgthrus/public_html/guide/OUMMZUE/Smokin'_Rockets_Mega_Nuk_w/75-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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