On 15 Jun 2004 at 21:09, Otis Wright wrote: > Suppose that is why pilots aren't supposed to wear polarized > sunglasses......
The passenger windows in commercial jet airlines are usually made of cast or stretched acrylic, both types will display a polarizing effect. The cock-pit windows are generally constructed using complex laminate which often contain glass and polymers and would likely be polarized to some extent. Small aircraft often use polycabonate or acrylic windows all round. The FAA warns that: "the use of polaroid sunglasses should be discouraged, since they can reduce or effectively eliminate the visibility of instruments that incorporate anti-glare filters or can interfere with visibility through an aircraft windscreen due to striations in some laminated materials. Polaroid sunglasses can also mask the sparkle of light that reflects off shiny surfaces, such as another aircraft's wings, fuselage, or windscreen, which could reduce a pilot's reaction time in a "see-and-avoid" traffic situation." See: http://www.hf.faa.gov/docs/508/docs/cami/0306.pdf Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
