Performance based on which CofG?

[Linktrained]

Boeing Airliner of January 1974 (!) under "Fuel Conservation at a Glance" states :-
"Aft c. g. shift ( per 4% max shift) 0.5 % for 707, 727 and 737
0.2 % for 747 "


I never had any information on the only DC3 ( one with a Starboard door that I flew as "F/O on freight" in 1951, and so beyond my pay grade.)


With a normally full load of charter passengers, the baggage and flight spares would be distributed " 2/3 forward, 1/3 aft " and on several later types of larger aircraft.
Perhaps the Chief in Charge of these matters had read your reason, in #8 in (a) to keep the load in the "Tested for C of A." position, rather than (b) "for minimal cruising drag".


Load sheets were graphical and could have had an extra line printed, between the limits, to indicate the " Optimum Loading"