Dermatologists may disagree with you Lorn. At my last office
visit last summer, she suggested I limit my sun exposure especially on top
of my shoulders, and "wear a ball cap while flying my plane" (I never have
before as I have thick hair.) I am primarily German and native
American (Cherokee) mix (although I claim to be just "plain western
American") and have always been an outdoor type.
An analogy: overexposure to the sun is akin to using tobacco; the
'player' pays for it later in life.
Gary Edwards
LNC2
----- Original Message -----
Sent: Monday, June 07, 2010 10:24 AM
Subject: [LML] Re: UV Exposure in Cockpit through Acrylic
Canopies
Jeff,
I have flown my 320 for up to 5.5 hours, at
altitude, with no shirt and in the sun. I have never been able to feel any
effect of the sun.
I am a fair skinned Dane-German but tan easily. Sun
exposure, if not excessive, is good for you.
My canopy has just the
slightest of tint.
see:
http://www.dynacomm.us/lorn/Lorn
>
From: "Jeffrey Liegner, MD" <
liegner@embarqmail.com>
>
Date: June 5, 2010 10:10:22 PM EDT
>
> I noticed the other day
that my transition lenses were ~half tinted while flying in some sun inside my
air conditioned LIVP at FL210, so UV must be penetrating the thick acrylic
canopy material. This is not the case inside a car.
>
> Being
a fair skinned irish-german, I slather 85+ SPF Neutrogenia lotion on regularly
and daily, but always felt that inside the cockpit (or car) that my exposure was
minimum. This suggests that long flights might justify reapplication of
sun block.
>
> Manufactures of acrylic canopies can choose to add
UV filters to enhance the filtration above 300nm.
>
> Just sharing
an observation to my fellow Lancair pilots.
>
> Jeff
L
--
Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst
DynaComm,
Corp., 248-345-0500,
mailto:lorn@dynacomm.usLNC2, FB90/92,
O-320-D1F, 1,700 hrs, N31161, Y47, SE Michigan