Originally Posted by
satman40
Move everyone to The front, ever gallon of fuel is 6.5 pounds.
In a traditional (non-canard) design, a rearward (but still within limits) CG is the best option for improved performance.
Originally Posted by
wh6cto
FAA allows passengers+cabin bag to be estimated at a certain weight. I recall thinking it way unrealistically low, maybe 155lbs?
As of the current Advisory Circular (AC120-27E), adults are 190 pounds in the summer (01 May - 31 Oct) and 195 in the winter (01 Nov - 30 Apr), assuming the airline does not use segmented weights. Flight crew and cabin crew are significantly higher.
http://www.faa.gov/documentLibrary/m.../AC120-27E.pdf
Originally Posted by
sexykitten7
And the FAA estimates that only 1/3 of pax have carry-ons!
The AC has no provision for that. All passengers are assumed to have 16 pounds of carryon baggage.