Originally Posted by
C441
Not on an 800m+ runway in 800m vis.
It is true that it is much harder using simply a shorter section of centerline lights but the basic principle is the same. On the other hand, good training could also be to decide on an autoland in limited visibility... after all we train to be safe (and I hope you didn't mean 800m landing runway in training...)
To quote the FCTM it says "far end of the runway". The rate of descent assesment is done using peripheral vision. The far vision is a "locking" point for your vision, but the assesment is done by assessing how fast the shoulders (the runway sides just in front of the flightdeck) are rising in relation to that far end. Anyway, that's how I explain that part at least.