Hi,
Checkboard posted this reply in Jan.
http://www.pprune.org/questions/4010...-distance.html
From EU-OPS 1.475
General
OPS 1.515
Landing — dry runways
(a) An operator shall ensure that the landing mass of the aeroplane determined in accordance with OPS 1.475(a) for the estimated time of landing at the destination aerodrome and at any alternate aerodrome allows a full stop landing from 50 ft above the threshold:
(1) for turbo-jet powered aeroplanes, within 60 % of the landing distance available; or
(2) for turbo-propeller powered aeroplanes, within 70 % of the landing distance available; ...
same maths - just different ways of looking at the problem.
Cheers RRR.