C-22B, a Boeing 727-100, is the primary medium-range aircraft used by
the Air National Guard and National Guard Bureau to airlift personnel.
The C-22B's unique arrangement of leading-edge devices and
trailing-edge flaps permit lower approach speeds, thus allowing
operation from runways never intended for a 600-mph (Mach 0.82)
aircraft has heated and pressurized baggage compartments - one on the
right side forward and the second just aft of the wheel well. The two
compartments provide 425 cubic feet (12.75 cubic meters) of cargo
space. The fuselage also incorporates a forward entry door and
hydraulically opened integral aft stairs in the tail cone.
flight controls consist of a hydraulically powered dual-elevator
control system with control tab to assist during manual operation.
Hydraulically powered rudders use two main systems with a standby
system for the lower rudder. The ailerons also are powered by
dual-hydraulic systems. They have balance tabs on the outboard and
control tabs on the inboard, which assures adequate maneuverability in
the event of a total hydraulic failure. The flight spoiler systems
assist ailerons and also function as speed brakes. The aircraft's
tricycle landing gear consists of a dual-wheel nose gear, left and
right dual-wheel main gear, and a retractable tail skid which prevents
damaging the aircraft in case of overrotation. Nose wheel steering is
hydraulically powered and controlled by a steering wheel to
approximately 78 degrees in either direction. Fuel is contained in
three main tanks inside the wing center section. Rapid pressure fueling
and defueling is accomplished at the fueling station on the right wing.
The total fuel capacity is approximately 50,000 pounds (22,500
kilograms) of JP-4. Fuel may be dumped down to 35,000 pounds (15,750
kilograms) from all tanks.
C-22B requires four crew members and three or four in-flight passenger
specialists for passenger service and safety. The avionics package
includes one UHF and two VHF radio altimeters, variable instrument
switching and two Collins FD-108 flight directors. A third vertical
gyro and an additional VHF transceiver are available in case of failure
of the primary systems.
The C-22B was introduced by the airline industry in 1963. It proved to
be a major innovative design with its three Pratt & Whitney
JT8D turbofan engines, one on each side of the rear fuselage and the
third in the tail cone. Currently, there are three C-22B's in use, all
assigned to the 201st Airlift Squadron, District of Columbia Air