Who can land in 'fog'

On Fri, 25 Nov 2005 at 09:59:36 in message
_hIhf.6632$Wu.5475@fed1read05, Darrell S wrote:

Naw. Autoland systems exchange crab to wing low at 150' AGL and at 50' AGL
the throttles come to idle and the aircraft enters Flare. At wheel spin up
it changes to "Roll Out" and continues to track the localizer centerline to
keep the aircraft on the runway. It makes beautiful landings.

I would have assumed that the flare depends mostly on the radar height
and not the glide slope. I don't see how glide slope alone can supply
the data on which to flare.

The change from crab to runway align according to information I have
regarding the 747-400, is that it takes place at 500 ft. The 50 ft
height for flare mode activation is confirmed in the same document.
--
David CL Francis