BTS | Table 4-21: Energy Intensity of Certificated Air Carriers, All Services (a)

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

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	1960	1965	1970	1975	1980	1985	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
Aircraft-miles (millions)
Domestic operations	858	1,134	2,068	1,948	2,523	3,046	3,963	3,854	3,995	4,157	4,380	4,629	4,811	^R4,938	^R5,039	^R5,279	5,610
International operations	182	284	475	377	401	415	760	807	904	961	980	998	1,043	1,114	^R1,188	^R1,207	1,257
Available seat-miles (millions)
Domestic operations	52,220	94,787	213,160	241,282	346,028	445,826	563,065	543,638	557,989	571,489	585,438	603,917	626,389	^R643,893	^R649,426	^R685,447	711,670
International operations	13,347	29,533	51,960	61,724	86,507	101,963	170,310	171,561	194,784	200,151	198,893	203,160	208,682	216,913	^R224,843	^R230,922	242,248
Passenger-miles (millions)
Domestic operations	30,557	51,887	104,147	131,728	200,289	270,584	340,231	332,566	347,931	354,177	378,990	394,708	425,596	^R444,794	^R470,246	^R478,586	506,519
International operations	8,306	16,789	27,563	31,082	54,363	65,819	117,695	115,389	130,622	135,508	140,391	145,948	153,067	160,779	163,656	^R172,485	184,163
Fuel consumed (million gallons)
Domestic operations	1,954	3,889	7,857	7,558	^R8,519	10,115	12,429	11,506	11,763	11,959	12,476	12,812	13,187	13,660	13,877	14,402	14,845
International operations	566	1,280	2,243	1,949	^R1,747	2,488	3,963	3,940	4,120	4,113	4,311	4,511	4,658	4,964	5,186	5,250	5,475
Seats per aircraft
Domestic operations	60.9	83.6	103.1	123.9	137.1	146.4	142.1	141.1	139.7	137.4	133.7	130.5	130.2	^R130.4	^R128.9	^R129.8	126.9
International operations	73.3	104.0	109.4	163.7	215.7	245.7	224.1	212.6	215.5	208.7	203.0	203.6	200.1	194.7	^R189.3	^R191.3	192.8
Seat-miles per gallon
Domestic operations	27	24	27	32	^R41	44	45	47	47	48	47	47	48	47	47	48	48
International operations	24	23	23	32	^R50	41	43	44	47	49	46	45	45	44	43	44	44
Energy intensity (Btu/passenger-mile)^b
Domestic operations	8,633	10,118	10,185	7,746	^R5,742	5,047	4,932	4,671	4,564	4,558	4,444	4,382	4,183	4,146	^R3,984	^R4,063	3,956
International operations	9,199	10,292	10,986	8,465	^R4,339	5,103	4,546	4,610	4,258	4,099	4,161	4,173	4,108	4,168	4,278	^R4,109	4,013
Load factor (%)
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	^R72.4	69.8	71.2
International operations	62.2	56.8	53.0	54.4	62.8	64.6	69.1	67.3	67.1	67.6	70.6	71.8	73.3	74.1	72.8	^R74.7	76.0

KEY: Btu = British thermal unit; R = revised.

^a U.S. owned carriers only. Operation of foreign-owned carriers in or out of the United States not included.

^b Calculation based on unrounded figures not shown here.

NOTES: Aircraft-miles 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-miles 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 Btu conversion is 135,000 Btu/gallon.

SOURCES:

Aircraft-miles, available seat-miles, passenger-miles, and load factor:

1960-80: Air Transport Association, Internet site http://www.air-transport.org/public/industry, as of July 5, 2000.

1985-2000: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Air Carrier Traffic Statistics (Washington DC: Annual December issues).

Fuel consumed:

1960-2000: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Internet site http://www.bts.gov/oai/fuel/fuelyearly.html as of July 25, 2001.

Seats per aircraft, seat-miles per gallon, and energy intensiveness:

Derived by calculation.

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

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