NVGs

[Buddy Spike]

Anyone know the FARs regarding civilian use of Night Vision Goggles?

[Buddy Spike]

Also, what's are the field of view limitations of standard aviation NVGs? (Not the PNVGs)

[Guest rotorhead]

ANVIS 6, PVS 9, (all commercial F4949 family) have a 40 degree FOV when properly adjusted. Mil spec on the 9's is 20/30 in bright light, 20/35 in dim light (note, the system can have different gain and acuity tubes, like A, B, C, D, E, F, G, H, etc.). Also, different tubes have different "minus" filters for different cockpit/HUD lighting. For example, H-60's with all blue lighting use G/H tubes with minus blue filters. Other designs might have minus yellow, leaky yellow, etc.

[Buddy Spike]

Thanks for the info, rotorhead!

[BFM this]

Don't know the FARs on them, but commercial medivac operators must get thier choppers certified for use (lighting, etc). An article in this month's B&CA says that many operators are opting for the upgrade.

[Buddy Spike]

Originally posted by flyinjunky:

Don't know the FARs on them, but commercial medivac operators must get thier choppers certified for use (lighting, etc). An article in this month's B&CA says that many operators are opting for the upgrade.

Yeah, I read something about that too in my research. I've seen STC's on 135 ops, but nothing about 91.