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Due to individual customer requirements, the equipment and furnishings may vary from the standardinstallation. This Sub-section provides the typical installation of a flight compartment, vestibule area,passenger cabin, galley, toilet compartment and cargo and accessory compartments.
FLIGHT COMPARTMENT
Stowages for miscellaneous flight and airplane equipment are provided in the left and right consolesand on the flight compartment rear bulkheads. A tray is mounted in the structure below the pilot's seatand can be swung out where it spans the area between both pilots' seats.
CREW SEATS
Seat Height Adjustment
Two crew seats, the pilot's and copilot‘s, are installed in the flight compartment and are adjustable forheight, fore and aft travel. Each seat is equipped with Teleflex inertia-reel type shoulder strap assemblyand lap belt. A life-jacket is stowed in a container mounted beneath each seat.
When the seat height adjustment handle is pulled upward, the height lock pins are disengaged from theholes in the height lock plates. Spring tension, supplied by the two bungee cords, causes the seat torise.
When the adjustment handle is released, the height lock pins engage with holes in the height lock platesto retain the seat pan in the required position.
Thigh Pad Position and Override
When the thigh support adjustment control knob is turned, two bevel gears mounted on the cross shaftare rotated, which, in turn, rotate a threaded drive shaft under each thigh pad. The rotating drive shaftcauses crossheads to move towards or away from slide housings thereby raising or lowering the thighpads. The mechanisms are under constant spring tension within the slide housings and support thethigh weight under normal conditions.
When the seat occupant uses the rudder controls of the airplane and thereby applies pressure to thethigh pads, the spring tension is overridden and the crosshead slide tubes are pushed into the slidehousing allowing the thigh pad to move downwards. When the pressure on the thigh pad is relaxed, thepad returns to its pre-set position.
Recline Adjustment Mechanism
When the recline control handle is pulled upward, a spring-loaded latch plate is withdrawn by a cablefrom contact with a coarse threaded nut within the recline unit.
Application of pressure on the backrest rotates the threaded nut and allows the strut to be pushed intothe recline unit. The spring is compressed and the backrest reclines.
When the control handle is released, the spring-loaded latch plate re-engages with the coarse threadednut and the backrest is locked in the required position. If the control handle is again pulled upward, andpressure released from the backrest, the spring, which was compressed by the recline operation, re-asserts itself, causing the threaded nut to rotate in the opposite direction.
The strut pushes on the backrest, which returns to an upright position and is locked upon release of thecontrol handle.
When the control knob is turned, a screw adjuster increases or decreases the distance between thearmrest drive plate and the pivot block via a drive shaft, thereby raising or lowering the armrest. Theinboard armrest can be stowed by rotating the arm to the rear of the seat.
A slot in the barrel of the adjuster screw takes up any height adjustment and allows the armrest to alignparallel to the seat back. When fully folded, the armrest is pushed in towards the center of the seat,reducing the seat width. The outboard armrest may be raised to an almost vertical position where it willbe held by a friction clutch until returned to the horizontal position by the occupant.
Back Cushion Lumbar Support
The seat back cushion is adjustable for up-down and in-out lumbar support. Lumbar in-out adjustmentis controlled by a handwheel on the right side of the seat. When the handwheel is rotated, themovement is transmitted through worm and wheel gears to the cross shaft, to which two relay arms areconnected.
As the relay arms rotate, the lumbar cushion moves forward or backward in relation to the spinestructure. The up-down movement of the back cushion is controlled by a handwheel on the left side ofthe seat. When rotated, the worm and wheel assembly causes rotation of a vertical shaft and a screwat the top of this shaft causes the crossbar to be raised or lowered, moving the back cushion to thedesired position.
The 3rd crew member seat is an additional seat which can be attached to the inboard rails of each crewseat. A three point inertia reel harness is anchored to the seat frame and the luggage compartmentupper shelf structure.
The seat is installed by engaging the seat slides with the crew seat rails, then locating the locking pinholes in the seat rails and the seat slides, and then locking the pins into position.
CREW CABINET AREA
The crew cabinet area is located forward of the main entry door, adjacent to the APU control panel (if installed) and provides a mic socket and volume control for a 3rd crew member. The crew cabinetalso consists of stowage areas for life vests and various pilot manuals. All stowage area doors must beclosed, to clear the flight compartment aisle, for takeoff and landing.
Hawker 800XP Pro Line 21Section III - SYSTEMS DESCRIPTION
GALLEY
The galley is located on the left side of the airplane aft of the entry door and consists of liquid containers,hot cup, decanter rack, drain dish, ice drawer, glasses drawer, cold food box, hot meal oven, waste binand various drawers and cupboards.
Electrical supplies are provided to the oven, hot cup, hot beverage container, drain heater andrefreshment cabinet light. The drain dish is connected to an overboard drain. A heater is attached to thedrain pipe immediately inboard of the drain exit from the fuselage. Control of the galley functions isprovided by a galley switch panel located on the upper left of the galley.
Hawker 800XP Pro Line 21Section III - SYSTEMS DESCRIPTION
SEATING ARRANGEMENTS
The seating arrangements comprise individual forward or aft facing seats with side consoles forentertainment control and a three seat divan. Each individual seat position is provided with a lap typesafety belt.
A three-seat divan comprises a base assembly with seat cushions, back cushions and a safety lap/shoulder belt assembly at each seat position. The base assembly is attached to the floor and sidewallseat rails. The two outer back cushions are attached to the sidewall by velcro tape while the center backcushion can be hinged forward to double as a table. Fixed arm rests are attached at both ends of thebase assembly with a small stowage compartment being provided in the divan base.
Hawker 800XP Pro Line 21Section III - SYSTEMS DESCRIPTION
CARGO and ACCESSORY COMPARTMENTS
LUGGAGE COMPARTMENT
A luggage compartment is installed in the vestibule area of all airplanes, with luggage retained withinthe compartment by a zip fastened nylon net. The compartment is normally enclosed by a folding slattype curtain.
A loading label, giving each compartments capacity and maximum floor loadings, is attached to theinterior trim panels.
MAIN RADIO/AVIONICS COMPARTMENTS
Radio racks and structure for the installation of electronic equipment are provided at various locations,such as under each pilot seat structure, under the luggage compartment, in the wing fairing avionicsrack and in the rear avionics compartment.
Flight Compartment Seats
Access to the compartment under the pilot seat structure is via a grill guard panel. Access to thecompartment under the copilot seat is via a grill guard panel inboard of the seat structure and a panelon the top of the seat structure.
Luggage Compartment
The radio compartment under the luggage compartment is concealed by trim panels which can beremoved for maintenance purposes.
Wing Fairing
Equipment in the wing fairing avionics rack is accessible by removing two panels on the fairingunderside.
Rear Avionics Bay
Access to rear avionics compartment is provided by two doors in the toilet compartment and one doorin the rear luggage bay forward bulkhead.
Nose Equipment Bay
The unpressurized nose equipment bay houses the nose landing gear and various avionics boxes. Thenose equipment bay can be accessed either through the nose cone (after removing the weather radar)or through two access panels located on either side of the nose structure aft of the nose cone. A metalsplash guard protects the equipment in the bay and a shield attached over the bay forward openingsimilarly protects the weather radar scanner.
Rear Equipment Bay
The rear equipment bay is unpressurized and access to the bay, via a hinged door on the underside ofthe fuselage, is only possible with the airplane on the ground. Pipelines forward of the access door, areenclosed by covers secured with quick-release fasteners. A box structure on the left-hand side of thebay houses main hydraulic system components.
Hawker 800XP Pro Line 21Section III - SYSTEMS DESCRIPTION
TOILET COMPARTMENT
The typical toilet compartment consists of a console assembly, flushing toilet with a fore and aftpositioned toilet services bulkhead. Access is provided to the rear baggage compartment and theavionics compartment from within the toilet compartment.
The washbasin console is installed on the right side and incorporates washing facilities, provision fortoilet requisites and the filling point for the wash water tank.
The toilet service’s bulkhead forms the mounting structure for a hinged mirror (to provide access to anavionics compartment/baggage compartment), an electric razor stowage socket and switch, an airlouver, mirror lamps and switch.
Electrical supplies to the razor socket are taken via a static inverter mounted in the avionicscompartment behind the hinged mirror. Water is pumped from a heated water tank below the washbasin.