There is a big difference between dry stopping distance, wet stopping distance, and flooded runway stopping distance. When downpours happen, the runway can have areas of ponding where the water may be more than 1/4"deep.
All bets are off then as braking may be close to zero.
Ask any pilot who has experienced it, it feels like ice, like someone gave the aircraft a big push in the back.
Add to that, the particular runway has "good" areas where constant use has left a relatively clean surface, but the lesser used areas have a kind of moss coating that is greasy and slippery. Once off the beaten track so to speak, braking can be very variable. The far (eastern) end of R 06 does not see much use other than the odd taxiing aircraft after a long roll-out.
There have been several attempts at improving the runway surface in the past,and its 10 years since I was last there, but the policy used to be, do not stow (idle) reverse until down to a walking pace.
The last 1500' of the runway was not a place to try to slow from, say, 60kts. Depending on conditions you might have your hands full.
I used to operate there in L-1011s and the "relax" point was not until down to a walking pace with a decent bit of runway left!
Being a wee bit long or a wee bit fast was not an option.
Last edited by ZQA297/30; 2nd Aug 2011 at 07:42.