PPRuNe Forums - View Single Post - TAM A320 crash at Congonhas, Brazil
View Single Post
Old 22nd Jul 2007, 20:52
  #387 (permalink)  
BOAC
Per Ardua ad Astraeus
 
Join Date: Mar 2000
Location: UK
Posts: 18,579
Likes: 0
Received 0 Likes on 0 Posts
Out of interest, I would firstly say there is enough anecdotal evidence that the runway 35L is 'slippery' when wet. Anyone disagree?

Running the approx figures for a 737-700, 2T below MLM at CGH gives:

Poor braking action, 'slippery' runway, max autobrake or max 'manual'

Basic LDR........ 2175m
For weight...... +110m
For altitude..... +170m
1 reverser u/s.. +370m
Headwind........ -140m
That makes roughly 2685m. How long is the runway..................?

This compares with about 1100m on just wet, even with no reversers.

All figures are for EXACT Vref: So, I won't be taking a 737-7 there.

I have seen lots of 'figures' quoted for the 320 on 'wet' but has anyone a 'slippery' LDR for that day? I saw Rippa quoting AB in #355, but were they talking 'slippery' or just 'wet'?
BOAC is offline