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Exercise 19. Read, translate and make the plan of text 4.

Text 4.Passenger Cabin

The passenger cabin must be as comfortable as possible in order that passengers would not be tired even if the flight is long.

The comfort of passenger cabin includes the following items: sufficient specific cabin volume (volume per passenger), comfortable seats, convenient arrangement and equipment of buffets, galley, wardrobes and toilets, good soundproofing, lowering the noise level of the cabin to available limit, oxygen feeding and maintaining of air pressure, sufficient lighting (natural and artificial).

Passenger's comfort is achieved only when all above-mentioned requirements are met.

The size of the passenger cabin is determined by volume per passenger, hi modem aircraft specific volume is 1.4-2 cu.m. The designer must provide sufficient height of a cabin, width of a gangway and such a seat arrangement which gives a free access to seat structure and enough room for passenger's legs.

Seats may be arranged four, five and even six abreast (three seats on either side of the central gangway).

Let's now consider the layout of interior compartments. To give passengers an impression of roominess it is necessary to destroy any tube effect. To meet this requirement rectangular roof panels, long panels along the upper sidowalls and several partial bulkheads are used The cabin can be divided into several parts: two or three passenger cabins and saloons, lobby, wardrobes, buffet or galley, toilet rooms, cargo holds.

Effective heating and ventilation as well as oxygen feeding and maintaining normal air pressure are usually achieved with air conditioning systems. Modern airliners are provided with hermetically sealed cabins with the normal air pressure.

Good soundproofing is achieved by using special panels and fabrics. Luggage holds are usually arranged in the fuselage nose and the rear. Two-decked airliners have under-floor cargo holds. Sometimes they have an unpressurized baggage compartments to the rear of the cabin with a large external door, hi some airliners the seats in the rear compartments are made easily removable.

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