Why Fly Nose Up ?
This is one thing that's been bugging me for some time:
When in the cruise, all passenger jets fly nose up rather than with the fuselage level. To me this is a disadvantage in that the canted attitude creates more parasite drag + higher fuel burn, surely the best thing would be to increase the incidence of the wing and fly fuselage level?
This also helps in the climb, descent and flare; i.e. there isn't such a nose high attitude and visibility over the nose is better.
Anybody got a clue ?