The most important thing to remember is that in perfect conditions the very best visual acuity you can get from a GEN 3 NVG is 20:200
Errr...OK, I'll bite - I'm not sure which GEN 3 goggles you're using, but GEN 3 are good to 20/40 or so. GEN 4 are good to 20/25 with a few sets hitting 20/20 on the Hoffman tester (mine do every time).
What does that mean?
Not sure if this is serious or not
, but at the risk of egg sucking - visual acuity is measured on a relative scale against average vision. Traditionally this distance is 20' (6m now that Imperial is a bad word). So 20/20 (6/6 = 20/20) means you can see at 20 feet what the average person sees at 20 feet. 20/200 means you can see at 20 feet what the average person sees at 200 feet & yes, you are legally blind!.
Of course its pefectly OK to fly around 'safely' at 25ft, 140kts at 0.2mLux, being shot at!
Although not necessarily intuitive to the non-NVG experienced folks, when illumination is poor, flying lower makes it easier to see!
