In topic Range Of SQ's 777-300ER (by Zvezda May 4 2007 in Civil Aviation)
Widebodyphotog in reply 57, posted quote........ Most 747-400's in service have operational OEW's in the range of 415-430,000lbs and MZFW of 535,000, 542,500, or 565,000lbs as the high option. Most of the ships operating in the world at this point use the 535,000lb option. Using simple math, operational max structural payload comes out to 105-120,000lbs which is much lower than the 777-300ER operational max structural payload of 135-140,000lbs...For SIN-CDG a typical 747-400 is limited to a ZFW of 519-520,000lbs (can be greater or lower with season) and would thus be only to manage a high average of about 105,000lbs.
Based on the preliminary data for the 747-8i what is a reasonable expectation for this type when compared to the operating data as given above for the 747-400 ?