Table 4-21M: Energy Intensity of Certificated Air Carriers, All Servicesa
Table 4-21M: Energy Intensity of Certificated Air Carriers, All Servicesa
1960 | 1965 | 1970 | 1975 | 1980 | 1985 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | (R) 2001 | (R) 2002 | (R) 2003 | (R) 2004 | (R) 2005 | (R) 2006 | 2007 | 2008 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Aircraft-kilometers (millions) | |||||||||||||||||||||||||
Domestic operations | 1,381 | 1,825 | 3,328 | 3,135 | 4,060 | 4,902 | 6,378 | 6,202 | 6,429 | 6,690 | 7,049 | 7,450 | 7,743 | 7,903 | 8,103 | 8,581 | 9,116 | 8,583 | 8,836 | 9,622 | 10,379 | 10,623 | 10,467 | 10,669 | 10,210 |
International operations | 293 | 457 | 764 | 607 | 645 | 668 | 1,223 | 1,299 | 1,455 | 1,547 | 1,577 | 1,606 | 1,679 | 1,793 | 1,918 | 1,971 | 2,063 | 1,901 | 1,795 | 1,759 | 1,944 | 2,115 | 2,274 | 2,386 | 2,446 |
Available seat-kilometers (millions) | |||||||||||||||||||||||||
Domestic operations | 84,040 | 152,545 | 343,048 | 388,306 | 556,878 | 717,487 | 906,165 | 874,901 | 897,996 | 919,722 | 942,171 | 971,910 | 1,008,075 | 1,049,160 | 1,065,889 | 1,125,463 | 1,170,046 | 1,118,816 | 1,091,906 | 1,109,159 | 1,193,614 | 1,211,002 | 1,192,378 | 1,219,246 | 1,173,329 |
International operations | 21,480 | 47,529 | 83,622 | 99,335 | 139,220 | 164,094 | 274,087 | 276,101 | 313,474 | 322,112 | 320,087 | 326,954 | 335,841 | 368,039 | 382,280 | 391,040 | 408,850 | 378,696 | 347,197 | 329,499 | 369,808 | 402,742 | 425,871 | 449,931 | 468,371 |
Passenger-kilometers (millions) | |||||||||||||||||||||||||
Domestic operations | 49,177 | 83,504 | 167,608 | 211,996 | 322,334 | 435,463 | 547,549 | 535,213 | 559,941 | 569,993 | 609,925 | 635,221 | 684,930 | 725,190 | 745,548 | 785,934 | 830,629 | 782,956 | 777,971 | 813,082 | 897,840 | 939,467 | 947,026 | 977,750 | 939,061 |
International operations | 13,367 | 27,019 | 44,358 | 50,022 | 87,489 | 105,925 | 189,412 | 185,701 | 210,216 | 218,079 | 225,937 | 234,881 | 246,337 | 272,552 | 277,218 | 290,115 | 310,278 | 287,015 | 276,624 | 271,337 | 312,493 | 339,384 | 355,669 | 376,747 | 385,100 |
Fuel consumed (million liters) | |||||||||||||||||||||||||
Domestic operations | 7,397 | 14,721 | 29,742 | 28,610 | 32,249 | 38,289 | 46,648 | 43,557 | 44,527 | 45,268 | 46,880 | 47,967 | 50,033 | 51,341 | 50,479 | 54,518 | (R) 56,271 | 52,496 | 48,916 | 49,520 | 53,339 | 52,904 | 51,839 | 51,791 | 47,949 |
International operations | 2,143 | 4,845 | 8,491 | 7,378 | 6,614 | 9,418 | 14,797 | 14,913 | 15,596 | 15,571 | 16,196 | 16,817 | 17,483 | 18,605 | 18,636 | 19,875 | (R) 20,850 | 20,197 | 19,226 | 19,755 | 21,169 | 22,616 | 22,779 | 23,487 | 23,419 |
Seats per aircraft | |||||||||||||||||||||||||
Domestic operations | 60.9 | 83.6 | 103.1 | 123.9 | 137.1 | 146.4 | 142.1 | 141.1 | 139.7 | 137.5 | 133.7 | 130.5 | 130.2 | 132.7 | 131.5 | 131.2 | 128.4 | 130.4 | 123.6 | 115.3 | 115.0 | 114.0 | 113.9 | 114.3 | 114.9 |
International operations | 73.3 | 104.0 | 109.4 | 163.7 | 215.7 | 245.7 | 224.1 | 212.6 | 215.5 | 208.3 | 203.0 | 203.6 | 200.1 | 205.3 | 199.3 | 198.4 | 198.2 | 199.2 | 193.4 | 187.4 | 190.2 | 190.4 | 187.3 | 188.6 | 191.5 |
Seat-kilometers per liter | |||||||||||||||||||||||||
Domestic operations | 11 | 10 | 12 | 14 | 17 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | (R) 21 | 21 | 22 | 22 | 22 | 23 | 23 | 24 | 24 |
International operations | 10 | 10 | 10 | 13 | 21 | 17 | 19 | 19 | 20 | 21 | 20 | 19 | 19 | 20 | 21 | 20 | (R) 20 | 19 | 18 | 17 | 17 | 18 | 19 | 19 | 20 |
Energy intensity (Kilojoule/passenger-kilometer) | |||||||||||||||||||||||||
Domestic operations | 5,659 | 6,633 | 6,677 | 5,078 | 3,764 | 3,308 | 3,206 | 3,062 | 2,992 | 2,988 | 2,892 | 2,841 | 2,749 | 2,664 | 2,548 | 2,610 | 2,549 | 2,523 | 2,366 | 2,292 | 2,235 | 2,119 | 2,060 | 1,993 | 1,921 |
International operations | 6,031 | 6,748 | 7,202 | 5,550 | 2,845 | 3,345 | 2,939 | 3,022 | 2,792 | 2,686 | 2,697 | 2,694 | 2,670 | 2,568 | 2,529 | 2,578 | 2,528 | 2,648 | 2,615 | 2,739 | 2,549 | 2,507 | 2,410 | 2,346 | 2,288 |
Load factor (percent) | |||||||||||||||||||||||||
Domestic operations | 58.5 | 54.7 | 48.9 | 54.6 | 58.0 | 60.7 | 60.4 | 61.2 | 62.4 | 62.0 | 64.7 | 65.4 | 67.9 | 69.1 | 69.9 | 69.8 | 71.0 | 69.1 | 70.3 | 72.6 | 74.4 | 77 | 79.0 | 79.8 | 79.6 |
International operations | 62.2 | 56.8 | 53.0 | 50.4 | 62.8 | 64.6 | 69.1 | 67.3 | 67.1 | 67.6 | 70.6 | 71.8 | 73.3 | 74.1 | 72.5 | 74.2 | 75.9 | 72.8 | 76.6 | 76.5 | 79.1 | 79.5 | 79.9 | 80.4 | 79.4 |
KEY: Btu = British thermal unit; R = revised.
a U.S. owned carriers only. Operations of foreign-owned carriers in or out of the United States not included.
NOTES
Aircraft-kilometers includes all four air-carrier groups
(majors, nationals, large regionals, and medium regionals), scheduled and
charter, passenger, and all-cargo. Fuel consumed includes majors, nationals,
and large regionals, scheduled and charter, passenger, and all-cargo.
Passenger-kilometers
includes all four air-carrier groups, scheduled and charter, passenger
service only.
International
operations include operations outside the United States, including those
between the United States and foreign countries and the United States and its
territories or possessions.
Heat
equivalent factor used for Joule conversion is 37,626,700 Joules/liter.
1kilometer
equals 1.609344 miles.
1 liter
equals 0.264172052 gallons.
SOURCES
Aircraft-miles,
available seat-miles, passenger-miles, and load factor:
1960-80: Air
Transport Association, available at
http://www.air-transport.org/public/industry, as of July 31, 2002.
1985-2008: U.S. Department of Transportation, Research and
Innovative Technology Administration, Bureau of Transportation Statistics,
Office of Airline Information, Air Carrier
Traffic Statistics (Washington DC: Annual
December issues).
Fuel
consumed:
U.S. Department of Transportation, Research and Innovative
Technology Administration, Bureau of Transportation Statistics, Office of
Airline Information, available at http://www.bts.gov/oai/fuel/fuelyearly.html
as of Nov. 6, 2009.
Seats per aircraft, seat-miles per gallon, and energy
intensiveness:
Derived by
calculation.