PPRuNe Forums - View Single Post - A320 preselecting QNH
Thread: A320 preselecting QNH
View Single Post
Old 23rd Dec 2021, 15:43
  #15 (permalink)  
FlightDetent

Only half a speed-brake
 
Join Date: Apr 2003
Location: Commuting not home
Age: 46
Posts: 4,321
Received 3 Likes on 3 Posts
TCAS should work with XPDR mode C altitude.
This should be hardwired to STD.
Remember, there is only one static pressure. Changing the QNH is calibrating the scale on the altimeter, not changing the source pressure itself.

FlightDetent is offline  
Reply