An anti hijacking system for an airplane to be operated during flight. A partition or barrier located immediately aft of the pilots cabin is adapted to be raised dividing the aft section longitudinally into port and starboard areas, the floors of which are dropped on command to lower the hijacker into a capsule in the belly of the plane. The capsule is releasable through opened bomb bay doors having attached thereto a parachute for safely returning the hijacker within the capsule to earth.
An aircraft having a fuselage comprising a belly separated from a pilots
cabin, a passengers section and an enclosed area intermediate thereof
by a deck, a partition normally disposed in the belly of
said aircraft and means for raising said partition into said area for
effectively sealing off any person positioned in one of the zones
defined by said partition and the fuselage of the aircraft, means for
gaining access to the pilot's cabin and the
passenger section from either zone when said partition is raised, the
deck of each zone comprising hinged sections adapted to pivot from edge
abutting position to a position directed to the belly of the aircraft,
means for operating said hinged sections,
a capsule separate from the aircraft fuselage disposed under each zone, a
bomb-bay door under each zone with a capsule supported over each door,
means for controlling each door for selectively jettisoning one of said
capsules from the aircraft, a
parachute being attached to each capsule and means being provided for
automatically opening the chutes when a capsule is released through one
of said doors.
This invention relates to
anti-crime devices and, in particular, to the construction of an
aircraft which has as its purpose to foil hijackers by safely removing
them from the aircraft in flight.In general, the airplane is constructed with a fore and aft
partition which can be raised into an area aft of the pilots cabin to
isolate the hijacker in the area the floor of which is constructed of a
pair of pivotal sections which are adapted
to be dropped for lowering the hijacker into a releasable capsule to
which a parachute is attached. Bomb bay doors are provided in the belly
of the plane for ejection of the capsule from the aircraft.One object of the invention is to provide a unique construction
system for an aircraft designed to foil and abort hijacking attempts.
Disposed along the longitudinal axis of the plane normally in the belly
12 underneath the service area 8 is a partition barrier 16 slidable in
fore and aft track guides 18 being urged upwardly by springs 20 on
actuation of solenoid operated
arming device 21. The barrier 16 is lowered to its normal position
manually or be mechanical means (not shown).
The deck is slotted at 26 to permit the barrier 16 to be raised
into the service area 8 and extend substantially to the ceiling of the
plane, thus dividing the service area into port and starboard zones A
and B. Each zone is provided with a floor
comprising pivotal sections 28 and 30, the free edges of the sections
normally abutting in the middle of each zone and supported by latch 32
which is solenoid controlled from the pilots cabin by means not shown.
The sections 28 and 30 are restored to
their normal horizontal position by manual or mechanical means as
Underneath each zone of the service area is a releasable capsule
34 in the form of a net and having a draw cord 36, each being supported
in the belly area 12 of the aircraft by releasable hooks 38 projecting
below deck 14. The draw cord 36 of
each capsule is attached to a parachute 40 which is opened automatically
by the weight of the hijacker a he falls into one of the capsules 34
releasing the draw cord 36 free of the hooks 38 and closing the capsule
over him by conventional and well known
rip cord attachment devies. Simultaneously, the bomb bay doors 42 are
opened by air cylinders 44 permitting the capsule 34 and its parachute
40 to drop therethru, as shown by the dot-dash lines in FIG. 2.
In particular, the pilot on being notified on an attempted
hijacking, as by a stewardess, raises the partition 16 to isolate the
perpetrator in one of the port or starboard zones of the service area.
Thus separated from others in the airplane,
including the stewardess, he is dropped into one of the top openings of
one of the capsules 34, at which point the bomb bay doors 42 are opened
and the capsule 34, with its human cargo, is parachuted safely to earth.