Okay I think I may be starting to see where I’m misunderstanding this. When I read the ‘within 60% of the landing distance available’ I immediately get 60% of my runway in my example 1800m (60% of 3000m). Since my LDR required is 1200m I’m then applying the 60% correction to that figure and getting the 2004m. 2004m is what I’ve calculated I will land with but I need to land with 1800m, so it appears I’ve corrected both figures by 60% instead of calculating one. What do you think?