Photo: "executive compartment" installed in a C-17 Globemaster to provide comfortable travel accommodations for the Secretary of Defense, VIPs and senior officers

http://cryptome.org/eyeball/c17-swank/c17-swank.htm

This shows the "executive compartment" installed in a C-17 Globemaster
to provide comfortable travel accommodations
for the Secretary of Defense, VIPs and senior officers. It appears to
be three-sections of joined Airstream mobile-home type units.
Nearby appears to be a communications module. It is not clear how many
there are of these special installations. Air Force
personnel call this the "Silver Bullet"