PPRuNe Forums - View Single Post - Embraer E190 FLCH logic
View Single Post
Old 27th Jan 2015, 13:26
  #1 (permalink)  
FLX/MCT
 
Join Date: Apr 2008
Location: Central Europe
Posts: 75
Likes: 0
Received 0 Likes on 0 Posts
Embraer E190 FLCH logic

Hey fellow PPRuNers,

I am looking for some deeper explanation of SPDe logic when climbing/descending in FLCH mode on the E190.

According AOM
For small altitude changes the AT commands only the necessary thrust in order to maintain a comfortable predetermined schedule based on vertical speed.
Does anybody know specific numbers or even some references when the "small altitude change" logic will engage and whether FLCH aims for a specific V/S in this case? (I heard on Boeing 777 it is based on time to reach the selected level.., maybe it is similar on the Embraer)
I have already checked the AOM and also some Honeywell guides but so far without success.

Any answer is appreciated
FLX/MCT is offline