CVD people do not see everything in grey scale.
F.Nose,
I was not implying they do, the point was that the Type Certificate holders of the aircraft, and the FAA do not regard the colour EFIS of such importance that loss of colour should restrict the operation of the aircraft.
Hence, it cannot be said that standard colour vision is required to operate the aircraft "safely", whatever "safely" means.
More accurately, loss of colour (or non-standard colour perception) does not materially inject any additional risk into the operation of the aircraft.
Gerry 111,
As a matter of fact, the CRTs referred to were, in domestic use, called Sony Trinitron tubes. Our tecs. reckoned that the very expensive Approved Replacement Parts differed from the commercially available tubes only in having a part number and a serial number on a sticker on the tube, plus associated 8130.3 or equivalent paperwork.
Tootle pip!!
PS 1:
re-" colour gun" Use a crap, ill-founded term and you destroy your argument and your credibility.
C.Steve,
Absolute rubbish.
which, apparently,is exactly what CVD people see, anyway.
Absolute rubbish, I guess that destroys your argument and your credibility.
PS2:
Many moons ago, BOAC ( predecessor to BA) bought some second hand B707-320, that were fitted with Collins FD-108 FDS. Said instruments had pretty colours, like the blue of the sky and the brown of the land, and sundry red warning flags, each of which also said what the flag was, in black. BOAC pulled all these instruments out, and replaced them with "proper" black and white Smiths equivalents.