Try flying out of Ryiadh Saudi Arabia in July.
48 degrees C with dust in a AC685 over gross.
Book figure was 4,000 feet. I reckon we did 6,000 feet ground run
Like others from OZ we are all taught the effect of temperature on performance. Australia doesn't have too many runways above 3000 feet altitude, but inland temperatures are usually between 30 and 40 degrees.
Whilst we dont quite get those temps in Aus (well most places anyway) when in the peak of summer it encourages you to get that big fan running up front! Somehow, I always manage to get stuck behind 2 or 3 whilst waiting to enter the runway and there always seems to be 2-3 in the pattern getting ready to land!