|Quoting 2wingtips (Reply 53):|
Your understanding would appear to be totally incorrect, unless you can source otherwise(which you obviously can't).
The 748i planning documents over time have shown various OEW and ranges. I have not collated them on a spreadsheet, however the numbers I stated are the best I could remember, hence I qualified my comments.
My recollection was the follows:
747X - 7800nm, 430 pax, OEW approx 181t.
748i launched - 8000nm, 450 pax, OEW approx 204t.
748i wind tunnel refinement - range increase by 300 nm some wing design change
748i stretch - OEW increase to approx 210t, range decreased approx 300-400 nm below 8000 nm
748i stretch launch - fuel payload increased by approx 11t, structural reinforcement, OEW increase to approx 212t, decreased payload, range back to 8000 nm, approx 470 pax.
If you have numbers that suggest that the OEW has decreased and payload and range increased with the stretch I would be more than pleased if you could share them.
“Don't be a show-off. Never be too proud to turn back. There are old pilots and bold pilots, but no old, bold pilots.” E. Hamilton Lee, 1949