it also depends on altitude.. usually is 1 knot for every 1000 feet above 20.000 feet of altitude.
60 tons at 10.000 feet should have 205 knots green dot
60 tons at 30000 feet should have 215 knots green dot
that is for A320, IAE or CFM.. till now, but i will have a look in the manuals next flight
Last edited by Riu; 9th July 2013 at 22:10.