Table 4-21M: Energy Intensity of Certificated Air Carriers, All Services

Table 4-21M: Energy Intensity of Certificated Air Carriers, All Services

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  1960 1965 1970 1975 1980 1985 1990 1991 1992 1993 1994 1995 (R) 1996 (R) 1997 (R) 1998 (R) 1999 (R) 2000 (R) 2001 (R) 2002 (R) 2003 (R) 2004 (R) 2005 (R) 2006 (R) 2007 (R) 2008 (R) 2009 2010
Aircraft-kilometers (millions)                                                      
Domestic operations 1,381 1,825 3,328 2,635 3,663 4,869 6,378 6,203 6,429 6,689 7,046 7,448 7,736 7,140 7,211 7,683 8,190 8,224 8,417 9,488 10,244 10,507 10,336 10,515 10,054 9,265 9,345
International operations 293 457 764 537 538 668 1,224 1,298 1,455 1,542 1,570 1,606 1,776 1,867 2,021 2,082 2,229 2,209 2,170 2,295 2,563 2,774 2,893 3,027 3,050 2,861 2,992
Available seat-kilometers (millions)                                                      
Domestic operations 84,040 152,545 343,048 346,452 525,827 728,641 918,225 887,653 912,562 936,834 962,630 992,094 991,431 1,021,745 1,027,447 1,088,353 1,130,875 1,101,240 1,079,810 1,102,856 1,185,907 1,197,445 1,176,423 1,202,284 1,154,707 1,078,028 1,091,200
International operations 21,480 47,529 83,622 103,220 136,011 177,958 293,950 300,091 331,250 340,909 339,746 347,011 367,772 377,837 393,007 405,107 428,808 412,495 379,397 379,013 423,747 459,078 477,203 503,750 520,320 491,543 505,089
Passenger-kilometers (millions)                                                      
Domestic operations 49,177 83,504 167,608 192,464 307,008 443,959 556,629 544,096 570,938 582,948 625,086 650,033 674,768 706,925 722,763 761,352 805,380 762,228 760,192 801,745 882,876 923,164 929,528 958,093 918,810 871,694 894,220
International operations 13,367 27,019 44,358 56,109 86,795 117,863 203,361 201,508 223,619 231,369 239,966 249,258 267,896 278,622 284,251 299,075 322,465 297,639 286,837 283,238 327,900 356,453 374,201 396,985 406,913 383,565 407,798
Fuel consumed (million liters)                                                      
Domestic operations 7,397 14,721 29,742 28,610 32,249 38,289 46,228 43,002 43,903 45,273 47,320 48,498 49,919 51,700 50,358 54,853 56,272 52,496 48,916 49,520 53,339 52,904 51,839 51,791 48,021 42,924 42,608
International operations 2,143 4,845 8,491 7,378 6,614 9,418 14,906 14,717 15,442 15,565 16,373 17,078 17,633 18,782 18,607 19,974 20,850 20,197 19,226 19,755 21,169 22,616 22,779 23,487 23,419 21,657 22,818
Seats per aircraft                                                      
Domestic operations 60.9 83.6 103.1 131.5 143.6 149.6 144.0 143.1 141.9 140.1 136.6 133.2 128.2 143.1 142.5 141.7 138.1 133.9 128.3 116.2 115.8 114.0 113.8 114.3 114.9 116.4 116.8
International operations 73.3 104.0 109.4 192.1 252.7 266.2 240.2 231.2 227.6 221.1 216.4 216.1 207.1 202.4 194.5 194.6 192.4 186.7 174.8 165.1 165.3 165.5 164.9 166.4 170.6 171.8 168.8
Seat-kilometers per liter                                                      
Domestic operations 11.4 10.4 11.5 12.1 16.3 19.0 19.9 20.6 20.8 20.7 20.3 20.5 19.9 19.8 20.4 19.8 20.1 21.0 22.1 22.3 22.2 22.6 22.7 23.2 24.0 25.1 25.6
International operations 10.0 9.8 9.8 14.0 20.6 18.9 19.7 20.4 21.5 21.9 20.7 20.3 20.9 20.1 21.1 20.3 20.6 20.4 19.7 19.2 20.0 20.3 20.9 21.4 22.2 22.7 22.1
Energy intensity (kilojoule/passenger-kilometer)                                                      
Domestic operations 5,659 6,633 6,677 5,593 3,952 3,245 3,125 2,974 2,893 2,922 2,848 2,807 2,784 2,752 2,622 2,711 2,629 2,591 2,421 2,324 2,273 2,156 2,098 2,034 1,967 1,853 1,793
International operations 6,031 6,748 7,202 4,948 2,867 3,007 2,758 2,748 2,598 2,531 2,567 2,578 2,477 2,536 2,463 2,513 2,433 2,553 2,522 2,624 2,429 2,387 2,290 2,226 2,166 2,125 2,105
Load factor (percent)                                                      
Domestic operations 58.5 54.7 48.9 55.6 58.4 60.9 60.6 61.3 62.6 62.2 64.9 65.5 68.1 69.2 70.3 70.0 71.2 69.2 70.4 72.7 74.4 77.1 79.0 79.7 79.6 80.9 81.9
International operations 62.2 56.8 53.0 54.4 63.8 66.2 69.2 67.1 67.5 67.9 70.6 71.8 72.8 73.7 72.3 73.8 75.2 72.2 75.6 74.7 77.4 77.6 78.4 78.8 78.2 78.0 80.7

KEY: 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 include all four large certificated 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 include all four large certificated 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.

Load factor: Ratio of Passenger-kilometers to Available seat-kilometers.

Heat equivalent factor used for conversion is 37,626.7 kilojoules/liter.

1.609344 kilometers = 1 mile.

3.785412 litres = 1 gallon.

SOURCES

Aircraft-kilometers, available seat-kilometers, and passenger-kilometers:

1960-70: Air Transport Association, available at http://www.air-transport.org/ as of July 31, 2002.

1975-1995: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, T1: U.S. Air Carrier Traffic and Capacity Summary by Service Class, available at http://www.transtats.bts.gov/Fields.asp?Table_ID=264 as of Dec. 15, 2010.

1996-2010: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Air Carrier Traffic Statistics, available at http://www.bts.gov/xml/air_traffic/src/index.xml#CustomizeTable as of Aug. 18, 2011.

Fuel consumed:

U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Office of Airline Information, Airline Fuel Cost and Consumption, available at http://www.transtats.bts.gov/fuel.asp as of Aug. 18, 2011.

Seats per aircraft, seat-kilometers per liter, energy intensiveness and load factor:

Derived by calculation.