Wikiposts
Search
Tech Log The very best in practical technical discussion on the web

Landings

Thread Tools
 
Search this Thread
 
Old 18th Aug 2008, 06:43
  #1 (permalink)  
Thread Starter
 
Join Date: Feb 2004
Location: Denmark
Posts: 150
Likes: 0
Received 0 Likes on 0 Posts
Landings

Guys,

Flying the 737 for 3,5 years. The last landings have been all some kind of hard or not nice aligned with runway. Im talking about some firm touchdowns and i dont know why. The guys to my left are doing quit fine;-), as usual. Argh, its like rollercoaster in flying, up and down,sharing my landing expeience? Will it get better one time?


Cheers;-)
Olendirk is offline  
Old 18th Aug 2008, 09:42
  #2 (permalink)  
 
Join Date: Jan 2005
Location: Cloud Cookoo Land
Posts: 1,270
Likes: 0
Received 0 Likes on 0 Posts
I'm a relative novice on the 737NG, however when are you chopping the thrust and are your eyes moving towards the end of the runway in order to judge the flare? Another reason for a firmer landing is becoming slightly unstable towards the end of the approach i.e either lateraly or verticaly. Just trying to use examples described by various LTCs at my airline. Probably nothing new to someone with your experience on type. Wouldn't worry too much, landings will always be a bit of a 'black art' and unfortunately cannot always be perfect. Anyone who says otherwise is not only kidding you but also themselves!
Callsign Kilo is offline  
Old 18th Aug 2008, 10:19
  #3 (permalink)  
kijangnim
Guest
 
Posts: n/a
Greetings,

What matters most is the height at which you start your flare.
You flare too high hard landing too low hard landing.

Personally I dont look at the end of the runway ( most of the time you tend to go where you look at, means floating floating floating ) on the A330 20-30 feet on the 767 20-30 feet on the 777 30-35...
So next time the captain flares look at the radio altimeter (or listen to the call) and picture it
During flare, thrust redution is gentle, and just reduce your rate of descent to something less than 500 feet/mn
after few adjusments you will be called mister smooth, and you will ask for the after very nice landing checklist
 
Old 18th Aug 2008, 11:18
  #4 (permalink)  
Warning Toxic!
Disgusted of Tunbridge
 
Join Date: Jan 2005
Location: Hampshire, UK
Posts: 4,011
Likes: 0
Received 0 Likes on 0 Posts
You have discovered a mysterious effect I have been aware of for over 20 years, flying multiple types from twin engie turboprops to 747s, multiple variants. You can be landing fine, for 4 months, 6 months, then you will go through a month or 6 weeks of awful landings that make you look like an amateur. You just will not be able to connect, then suddenly you seem to suss it out again and every landing is a goodie, you can do no wrong, then suddenly you will slip back into just not being able to do it. Embarrassing, but it will pass. I don't understand it, but it happens!
Rainboe is offline  
Old 18th Aug 2008, 13:10
  #5 (permalink)  
 
Join Date: Jun 2000
Location: Australia
Posts: 4,188
Likes: 0
Received 14 Likes on 5 Posts
During flare, thrust redution is gentle
My old Boeing Seattle instructor made it quite clear when landing the 737. The very second you commence the flare he said don't play around with the thrust levers - close them quickly - none of this gentle throttle closure as it only extends the float and landing run.
Centaurus is offline  
Old 18th Aug 2008, 13:29
  #6 (permalink)  
 
Join Date: Jan 2004
Location: Planet earth
Posts: 10
Likes: 0
Received 0 Likes on 0 Posts
I share the sentiments of a lot on this thread. The flare and landing can be quite elusive and embarassing. My technique on the A380 is to monitor the call out. At 40' (give or take) One's eyes are out to the far end and the flare begins ending at about the 20' call and watching the sink rate. A little more or a little less will account for wind conditions. I share the same sentiment about idling the thrust levers, it should be done qiute expeditiously as you begin the flare or you will be eating up precious runway. Reversers should be deployed forthwith or the braking action will rely entirely on brakes with heat build up. The A380 is unforgiving wrt brake heat build up. Manual brakes goes a long way to eliminate this for quick turn around limits. We don't have brake fans. She sits quite majestically. Alot of ground effect. Hope this helps.
j_swift is offline  
Old 18th Aug 2008, 13:39
  #7 (permalink)  
 
Join Date: Jul 2004
Location: UK
Posts: 849
Likes: 0
Received 0 Likes on 0 Posts
It's a bit like being a golfer cursed with a case of the Yips (an inability to sink even simple putts).

I'm sure it happens to us all, and I know for a fact it definitely happens to me. I get a series of poor landings (like yourself, either uncomfortably firm or off-centerline - which I find particularly disconcerting) maybe every 5 or 6 weeks, and it lasts for anything from just a couple of days, to maybe a week or more. Fortunately all of them are inside the touchdown zone (quite happy to let pride take a fall in order to avoid a runoff), but not pretty to watch.

I find that they occur far more often when I'm feeling tired (not fatigued in the true sense), as I seem to have a little more difficulty concentrating. Maybe it is down to over-compensating for my tiredness and trying to concentrate too hard because I'm aware of being tired, and instead of flying nice and relaxed, I end up tense. Either way, the first poor landing makes me more conscious of trying to redeem myself with the next one, and yet again I end up tense instead of relaxed and thus the cycle begins.

Silly I know, but that's how I would describe my own experiences.
Maude Charlee is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.