Originally Posted by
leon737
Absolutely. I refer to the specific conditions like short runway or runway is wet or contaminated. A general rule to just add less than 500kgs of gas to the estimation should probably work in most circumstances, doesn't it? I'm talking about 737 and 320 family and exact figures in calculations don't matter in this discussion.
You would only increase landing distance by less than 200 ft per tonne on an A320 with a medium poor runway at sea level. If you cannot land with the weight at top of descent you should probably not be going there, that is just not sensible on a contaminated runway as the 737 has demonstrated time and again.