I would just point out that I first flew a Sea King 3 on NVG in autumn 1982 (circuits to a man with a cigarette in the middle of Chetwynd), in preparation for a det to 51S 58W or thereabouts.
Sven
edit to add
We probably were putting lives at risk - we just hadn't figured all the hazards. I guess we were lucky. Over time you learn (and you get better goggles). The trick is then that others take your experience and move on.
So you never had to fly on PNGs? What a revelation NVGs were after
those evil devices. Probably more likely to crash wearing them and unable to wear a helmet, only a cloth inner. One tube had to be focused on the instruments and one tube outside due to no peripheral vision whatsoever; and the tubes used to mist up....
And we had to go back to using throat mikes while using the goggles, which didn't help.
I got funny eyes now...