it also includes modifications enabling it to carry 185 passengers -lrb- or a maximum takeoff payload of 83 tons or 183,000 lbs -rrb- over up to 4,250 km -lrb- 2,300 nautical miles -rrb- and at a cruising speed of up to mach 0.82 , while benefiting from the experience of an aircraft that has been in service since 1988 .