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"Ken S. Tucker" wrote in message
... On Sep 13, 3:33 am, "Atheist Chaplain" wrote: "TacAN" wrote in message ... "Spartan613" wrote in message ... "TacAN" wrote in message ... "Ned" wrote in ... From CNN - A U.S. Air Force pilot has landed a plane in Antarctica in the dark for the first time using night-vision goggles, a feat that could lead to more supply flights to scientific bases in the frozen continent during its dark winter months, officials said Friday. The C-17 Globemaster cargo airplane landed in a driving snowstorm on the 10-kilometer (six mile) ice runway at the U.S. Antarctic research center at McMurdo Station, after months of practice runs by pilots using the goggles. Can NVG's see through a driving snow storm? Graham Good question. And with the aircraft's landing lights on, the amount of reflected light from the snow-flakes would normally overwhelm the goggles. I know from personal experience that NVGs aren't that great when using them in heavy rain and active illumination. Which was pretty much what I was thinking. Graham -- "Those who beat their swords into ploughshares will plough for those who didn't". High intensity IR LED's in the landing lights would do the job quite well without having to worry about the reflected active illumination from the main landing lights, in conjunction with IR reflectors (as used on the back of most military vehicles in night time full tactical situations) would finish the job, "Hell I have been doing some experiments with IR stuff for the last couple of months, and it would seem pretty trivial" http://www.wunderground.com/global/stations/89009.html MILspec goes to -40. I had a freezer to test electronics that went lower, wires shatter, metal brittles. You'll need to extend your specs to -120F. Ken your also assuming that the de-icing on the AC is turned off ?? -- God made me an atheist. Who are you to question his wisdom? |
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