I believe aircraft (at least, fighters) had a "War Emergency" throttle setting that was accessed by breaking some glass by pushing the throttle (and prop and mixture?) forward extra hard. A "give it all it's got, to heck with longevity" setting that was not normally used. It would be interesting to read the French equivalent of the US NTSB report on that airbus crash. In any case, every comment I've read blames the plane for not allowing the pilots to push the envelope a bit trying to avoid those trees.
Ghery S. Pettit From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate Sent: Tuesday, March 02, 2010 1:46 PM To: emc-p...@ieee.org Subject: Re: [PSES] Toyota -- Comment on Software and Electronics for Safety In message <4c5e6457cd7911469a07260381288c2860f54...@orsmsx502.amr.corp.intel.com>, dated Mon, 1 Mar 2010, "Pettit, Ghery" <ghery.pet...@intel.com> writes: > In the Paris incident the pilots tried to exceed the performance >envelope to clear the trees and the computer wouldn't let them. I've >seen video of the crash. Not good. So the computer crashed the plane from level flight to prevent it stalling and crashing. But the performance envelope limits surely have a 'safety factor' built in, so the plane might not have stalled if the pilots tried to gain JUST enough height, not pulled the stick back regardless. I think a re-think is indicated. Didn't WW2 US naval craft have an engine telegraph position 'Flank speed', aka 'GTHOH', which 'pushed the envelope' quite hard? -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK I should be disillusioned, but it's not worth the effort. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@socal.rr.com> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@socal.rr.com> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
