PPRuNe Forums - View Single Post - Thrust on during flare...Q for AIRBUS test pilots...
Old 27th Mar 2014, 09:47
  #109 (permalink)  
Trackdiamond
 
Join Date: Jul 2013
Location: equatorial side of the Polar Jet
Posts: 193
Likes: 0
Received 0 Likes on 0 Posts
keeping the power during the flare on Airbus FBW

Guys..this is one of those long historic banters of course..lemme join in!
(Pitch +/- power)trim 〓performance..is widely understood.

The argument of what controls vertical speed and what controls forward speed depends on which flight phas we plan to be in..or happen to find ourselves in.

Straight and level..Power controls speed. Pitch controls Altitude(Vert speed)

Climb....Power controls Vert Speed. Pitch controls forward Speed.

Descent...Power(or lack there of) controls Vert speed...Pitch controls forward speed.

Approach Power controls forward speed pitch controls Vert speed(glide path)..however...if excess deviation occurs on glide..use power reduction(if above sope) or power increase(if below slope) appraching half FSD.When at or beyond half scale dev..consider Go Around.

Missed Approach; Pitch first and Power to TOGA setting.Arrest sink and inject further climbing energy.

Flare: Pitch...to arrest sink from that required to maintain Glideslope..and gently retard from the recommended power reduction Radio height..eg 20-10ft depending on weightyn wind etc...and that should give you if gentle with pitch demand rate and your distant vision should assist in gauging your bum sink rate...shoud settle you on terra forma with a subtle 200-300 fpm close to or just past the touch down zone.

If you have passed the touch down zone markers and haven't gotten ypur greaser..you will probably raise hell if you continue.Abort landing and Go Around..eat your Ego out!

Last edited by Trackdiamond; 27th Mar 2014 at 18:59. Reason: This post has featured duplicated.i posted another relating to Airbus pitch and power on the flare but was dropped by mods
Trackdiamond is offline