PPRuNe Forums - View Single Post - Flying a Backcourse (B747-400)
View Single Post
Old 2nd Feb 2017, 18:37
  #18 (permalink)  
JammedStab
 
Join Date: Apr 2008
Location: nowhere
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
We had a 744 in our fleet with a separate BC pushbutton. Never used it though.

For other aircraft, would consider using LNAV in order to keep the needle(which is the primary reference) centered.

Originally Posted by Check Airman
Zeus,

You're allowed to fly a back course in LNAV? Here in the US, you can't fly a LOC based approach using the FMS. Raw data only.
Of course you can fly a BC using LNAV, or front course, or VOR, or NDB. LNAV is just being used to hold a track while you monitor the raw data indications which are the primary reference. You could use HDG SEL as well and vary it as required to maintain an appropriate track to stay on the localizer. I don't remember any rule or regulation stating how you stay on the localizer, just that the deviation limits are for the localizer.
JammedStab is offline