Air Force One seen by BA pilot

Big John wrote:

I want to put together an agenda where airline pilots will load and
unload the bird if it is hi-jacked (hi-jackers have no access to
cockpit).

No aileron (bank) or rudder (yaw) inputs other than what is need to
keep bird on a straight line. Only elevator input with a clean bird
(no flaps, etc.).

The figures given seem to be about 2.5 +G's and 1.5 -G's. I'm not sure
those are the figures I want? Are these 'company' figures for
passenger comfort or airframe longevity or the manufactures structural
limits that should not be exceeded at any time? Also what is design
ultimate if it is available?
Isn't that essentially what the El Al captain did back in the 70s?