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Old 11th Jul 2021, 07:20
  #15 (permalink)  
Ascend Charlie
 
Join Date: Sep 2002
Location: Great South East, tired and retired
Posts: 3,524
Be cautious also of buying the light-sensitive colour-change glasses. I bought one such (expensive) pair, to use in an S76, and found that the UV which activates the change, was removed by the windscreen, so they didn't darken at all. I had to be outside the aircraft in direct sunlight for them to darken, and as soon as I hopped into the cockpit, they cleared up again. Waste of money.
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