PPRuNe Forums - View Single Post - A320 QRH In Flight Performance landing distance
Old 8th Mar 2018, 02:34
  #10 (permalink)  
hikoushi
 
Join Date: Jun 2006
Location: B.F.E.
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Yes, what logic are you referring to, and which type? 330? 321? Slightly different animals. 330 timing of brake application is different depending on the setting, which can affect technique for reverse and derotation. Can't think of any other real gotchas though. Have actually seen higher brake temps using LOW in certain wind and weight conditions when reverse JUST ABOUT achieves the required deceleration rate, causing the brakes to cycle on and off (which carbon brakes absolutely LOVE).... doesn't happen at MED even with max reverse.

And yes A/BRK medium in the 330 at PHOG with a 25 knot headwind does get you stopped in a hurry. Just release the back-stick a little and let the second set of wheels roll on before the brakes kick in and it won't feel so extreme. Some people say going straight to max reverse ASAP reduces the "slam down" a little (as opposed to going to idle reverse for a moment first to let things spool up evenly). Personally that didn't work for me; I found that just learning the timing of the brake application and doing whatever is necessary with the sidestick to keep the derotation rate visually the same as with LOW brakes, did the trick.

About 50% of the time. The rest is witchcraft.

Last edited by hikoushi; 8th Mar 2018 at 06:30.
hikoushi is offline