Punisher05 wrote:
I saw somewhere that the Taliban had claimed responsibility for the incident, though it seems fairly laughable unless a lucky shot cut a cargo pallet loose. Pardon my ignorance on how the pallets are secured on board.
I haven't done a % of MAC calculation in years...theoretically how much would have to shift to give a 747 an aft CG like that?
Either way, it's chilling video.
According the references on line, MAC is 327.8 inches long on the wing chord line and the leading edge of the MAC envelope is 1258 inches aft of Datum for a total theoretical envelope can go back to sta. 1558.8, and Datum is, like all modern swept wing aircraft a specified number of inches (set by the manufacturer) ahead of the first place a bug can hit the radome, so every airplane can 'grow' without redoing Datum and every measurement is a positive number (work an old airliner like a DC-4 with negative and positive Datums for weight and balance you will have no hair left on your head), the 727, 737, and all models of DC-9/MD-80 had Datum @ 7 inches ahead of the radome (and the length overall differences between a little DC-9-10 and an MD-80 are significant).
Old saying, 'if a man is hunched over a desk with a calculator, a pencil, and sheets of paper, depending upon how much cussing he's doing he's either doing his taxes or working a weight and balance calculation'
MAC calculations are one of the last computations done and is derived by an abstract division formula distinct for each type, in the C.G. calculations formula in the aircraft manuals, based on Total weight, corrected arm, and total moment.
It's just slightly less aggravating than sanding wildcats butts in a dark phone booth until you've done a few.
Inspector...I gotta tell you, as a Cajun I've spent a goodly part of my life eating gumbo...this is the first time it's come out my nose.
All that mess is the reason I inspect runways instead of take off on them.