Dave:
do you happen to have an accurate MZFW figure for the York
What I have are these figures from Jane's AWA 1949-50 (scanned text):
WEIGHTS AND LOADINGS (Heavy freighter version).— Weight empty (equipped) 39,458 Ib. (17,899
kg.). Crew (4) 680 Ib. (308 kg.). Crew's baggage 100 Ib. (45 kg.). Fuel and oil 19,192 Ib. (8,705 kg.). Water 125 Ib. (57 kg.). Total freight load 11,445 Ib. (5,192 kg.). Max. weight loaded 71,000 Ib. (32,206 kg.). Max. landing weight (on grass) 58,000 Ib.(25,909 kg.). Max. landing weight (on concrete) 60,000
Ib. (27,216 kg.).Wing loading 54.6 Ib./sq. ft. (266.6 kg./m.2). Power loading 10.9 Ib./h.p. (4.93 kg./h.p.).
WEIGHTS AND LOADINGS (21-passenger version).— Weight empty (equipped) 43,438 Ib. (19,704
kg.). Crew (5) 820 Ib. (372 kg.). Crew's baggage 125 Ib. (57 kg.). Fuel and oil 19,192 Ib. (8,705 kg.). Water 300 Ib. (136 kg.). Food 125 Ib. (57 kg.). Passengers (21) 3,570 Ib. (1,619 kg.). Passengers' baggage 1,030 Ib. (476 kg.). Mail 2,380 Ib. (1,080 kg.). Weight loaded 71,000 Ib. (32,206 kg.). Landing weights and loadings as Heavy Freighter version.