TAILIEUCHUNG - Kỹ thuật máy bay chiến đấu Episode 1 Part 9

Tham khảo tài liệu 'kỹ thuật máy bay chiến đấu episode 1 part 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | CREW STATION PASSENGERS AND PAYLOAD 187 Fig. Cargo containers. Two of the more widely used cargo containers are shown in Fig. . Of the smaller transports the Boeing 727 is the most widely used and the 727 container shown is available at virtually every commercial airport. The LD-3 container is used by all of the widebody transports. The B-747 carries 30 LD-3 s plus 1000 ft3 of bulk cargo volume non-containered . The L-1011 carries 16 LD-3 s plus 700 ft3 of bulk cargo volume and the DC-10 and Airbus each carry 14 LD-3 s plus 805 and 565 ft3 respectively of bulk cargo volume . To accommodate these containers the belly cargo compartments require doors measuring approximately 70 in. on a side. As was discussed in the section on wing vertical placement low-wing transports usually have two belly cargo compartments one forward of the wing box and one aft. The cargo volume per passenger of a civilian transport ranges from about ft3 per passenger Ref. 24 . The smaller number represents a small short-haul jet DC-9 . The larger number represents a transcontinental jet B-747 . The DC-10 L-1011 Airbus and B-767 all have about 11 ft3 per passenger. Note that these volumes provide room for paid cargo as well as passenger luggage. Smaller transports don t use cargo containers but instead rely upon hand-loading of the cargo compartment. For such aircraft a cargo provision of 6-8 ft3 per passenger is reasonable. Military transports use flat pallets to pre-load cargo. Cargo is placed upon these pallets tied down and covered with a tarp. The most common pallet measures 88 by 108 in. Military transports must have their cargo compartment floor approximately 4-5 ft off the ground to allow direct loading and unloading of cargo from a truck bed at air bases without cargo-handling facilities. However the military does use some commercial aircraft for cargo transport and has pallet loaders capable of raising to a floor height of 13 ft at the major Military Airlift Command .

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