From the 767-300ER QRH. Vref 20 at 180000KGS, which is around max T/O, is 173 knots. Our tires are 225 mph so not a factor unless you opt for a tailwind as well! Also from the Boeing FCTM, "Landing distance is normally less than take off distance for flaps 25 or 30 landings at all gross weights." Also "Analysis has determined that, when landing at high gross weights at speeds associated with non-normal procedures requiring flaps set at 20 or less, maximum effort stops may exceed brake energy limits. The gross weights where this condition can occur are well above maximum landing weights. For these non-normal landings, maximize use of the available runway for stopping." For an engine out landing at 150000kgs the QRH gives an unfactored landing distance of 3465' on a dry runway, standard day with no wind or slope. Brakes on the 757/767 are superb. You really need to abuse them for the temperatures to go up.