Allan Armistead wrote:
No, I can't answer that question any better, but can I add a
question about blue tinted canopies?
I used to think the blue tint was a terrific idea and added some
protection vs UV,
<gasp>
Perspex doesn't filter much UV at all. Even if it's tinted blue.
Tints which don't filter UV are worse than no tint at all. Due
to the reduced light levels transmitted through the tint, your
pupils will dilate and let more light onto your retina. If
that light happens to be unfiltered UV, you have a serious problem
on your hands (or in your eyes).
Tinted canopies should not be used without UV-absorbent sunglasses.
If you're using sunglasses anyway, the tint is kinda pointless --
particularly given that without the tint you can experiment with
sunglasses to get the best result, but with the tint you're kinda
stuck with whatever light it transmits regardless of whether or not
it's optimal.
BTW I now have some "Old Eagle Eyes" which I find makes it much
easier to quickly pick up other gliders in the sky.
I find excellent results with polarized sunglasses (even though CASA
suggests that polarized lenses are bad for aviation). As you tilt
your head left and right the hue of the sky changes, but the gliders
remain bright white. The resulting changes in contrast really
draw the eye; the effect is quite amazing.
- mark
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I tried an internal modem, [EMAIL PROTECTED]
but it hurt when I walked. Mark Newton
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