Quote:
I just finished my type-rating A320, so could someone please explain what's wrong with the following calculation:
Approx. LDW 140.000 Lbs
Airport elevation approx. 2500 feet (ISA)
According to the met. report in a post above: 10 kts tailwind
water on the runway approx 1/4 inch
actual landing distance:
5430 feet (config full)
543 feet correction (4% per 1000ft above SL)
1140 feet correction (21% per 10 kts tail wind)
-----
7113 feet
LDA according to Jeppesen chart 10-9 (9 sep 05) 5938 feet
You have assumed the RWY was contaminated. Was it? a 1/4 of a inch is 5.5 milimeters. A RWY can be WET without being contaminated provided the standing water is less than 3 milimeters.
This is my understanding.