"Bad" CAI302 Display

The material in polarised sunglasses is oriented to minimise specular
reflection from water/snow surfaces. As a bonus for soaring pilots this
enhances cloud definition. Rotating sunglasses material reduces the useful
effect appreciably, so negates the benefit of polarising sunglasses.

Early production CAI302s had an LCD with the 'wrong' orientation for
polarising sunglasses, and nobody is likely to have a new batch
manufactured now.

The only practical answer is to use non-polarising sunglasses; brown tint
is good for cloud definition. A reddish tint is even better, but at the
expense of false colour which can cause problems when identifying crop
types for the field selected, and in reading paper charts.

At 04:14 18 September 2013, Doug Mueller wrote:
Dan, you can rotate your glasses 90 degrees, if the display
becomes visable, it is the glass not the LCD on the 302.