HGS and CAT IIIB
Thread Starter
Join Date: Dec 2016
Location: Sweden
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
HGS and CAT IIIB
Hi,
Correct me if I'm wrong, but as far as I'm aware the B737NG may perform a CAT IIIB approach, with fail passive, provided it has a HGS/HUD.
Now, if that is the case, the way I understand is that there's no autopilot rudder authority, and therefore, will the pilot manually have to apply rudder, like a "normal" approach?
Also, if a CAT IIIB approach is flown with the HUD (and fail passive), is the required RVR still 75m (as what seems to be the minimum RVR during HUD ops)? And, what will be the Radio Altitude minima? Is it still e.g. 50ft as during a CAT IIIA, or can it be flown with no minima, even if it's not equipped with fail operational?
Thanks in advance!
Correct me if I'm wrong, but as far as I'm aware the B737NG may perform a CAT IIIB approach, with fail passive, provided it has a HGS/HUD.
Now, if that is the case, the way I understand is that there's no autopilot rudder authority, and therefore, will the pilot manually have to apply rudder, like a "normal" approach?
Also, if a CAT IIIB approach is flown with the HUD (and fail passive), is the required RVR still 75m (as what seems to be the minimum RVR during HUD ops)? And, what will be the Radio Altitude minima? Is it still e.g. 50ft as during a CAT IIIA, or can it be flown with no minima, even if it's not equipped with fail operational?
Thanks in advance!
