Many prop-job aircraft have reversible pitch ('beta' thrust) props can back
up; e.g. C130 Cessna Caravans, and many of the craft that use the venerable
PT6 engine.I am not certain if 'reverse' thrust on jets can be used to back up. Probably need to explain some aviation terms here. 'Beta' as a term for the angle of the blades, was derived as a complement to 'alpha' which is the term for angle of attack. And I am sure the members of this group have already guessed that there are some serious flight safety implications; and that this is not always a good thing, see www.airdisaster.com/reports/ntsb/AAR94-06.pdf luck, Brian > -----Original Message----- > From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Pettit, > Ghery > Sent: Thursday, February 15, 2007 11:19 AM > To: John Woodgate; emc-p...@ieee.org > Subject: RE: Noise canceling headsets > > Don't want to make a wrong turn and wind up nose to nose with another > plane. Reverse gear isn't an option on anything I fly, and it really - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.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...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
