The 747-400 seats 416 to 568 passengers and has a range of 8,350 miles. With its huge capacity, long range and fuel efficiency, the 747 offers the lowest operating cost per seat of any twin-aisle commercial jetliner. The 747-400 is available in an all-cargo freighter version as well as a combi model for passengers and cargo.

Orders: 1,291* Deliveries: 1,189

The 777-200, which seats 305 to 440 passengers depending on configuration, has a range of up to 5,925 miles. The 777-200ER (extended range) was first delivered in February 1997 and can fly the same number of passengers up to 8,861 miles. The 777-300, which rolled out of the factory in August 1997, with deliveries beginning in 1998, is about 33 feet longer than the -200 and can carry from 328 to 550 passengers, depending on seating configuration, with a range of 6,790 miles.

Orders: 429* Deliveries: 178

The 767-200 can fly 181 passengers more than 7,600 miles in its extended-range version. The 767-300, also offered in an extended-range version, offers 20 percent more passenger seating. A freighter version of the 767-300 is available. The newest member of the family, the extended-range 767-400ER is scheduled to enter service in 2000 and will carry from 245 to 375 passengers more than 6,750 miles.

Orders: 863* Deliveries: 729

Seating from 180 to 230 passengers, depending on configuration, the 757-200 is ideal for high- demand, short- to medium-range operations and can fly nonstop intercontinental routes. It is also available in a freighter version. The 757-300, scheduled for first delivery in 1999, has approximately 20 percent more seating and will have about 10 percent lower seat-mile operating costs than the -200, which already has the lowest seat-mile operating cost in its market segment.

Orders: 966* Deliveries: 836

The Boeing 737 is the best-selling commercial jetliner of all time. The Next-Generation 737-600/ -700/-800/-900, the most recent additions to the family, have outsold all other airplanes in their market segment. The 737 is the only airplane family to span the entire 100- to 189-seat market. The family also includes the Boeing Business Jet derivative of the 737-700.

Orders: 4,234* Deliveries: 3,256

The newest member of the Boeing commercial jet airplane family was introduced in October 1995 as the McDonnell Douglas MD-95. The twinjet, renamed the 717-200 in January 1998, will meet the growing need worldwide for a 100-seat regional jet. First delivery is scheduled for mid-1999.

Orders: 115* Deliveries: 0

Boeing now produces the MD-11 in both freighter and passenger versions. The MD-11 Freighter fills the niche between the 767 Freighter and 747 Freighter. The MD-11 Freighter holds more than 21,000 cubic feet of cargo, and the passenger version seats from 233 to 410, depending on configuration. MD-11 production will be phased out with the delivery of orders now on hand, with the last delivery scheduled for March 2001.

Orders: 200* Deliveries: 186

The MD-80 family includes five models — the MD-81, the MD-82, the MD-83, the MD-88 and the smaller MD-87 — with seating for 139 to 163 passengers. Boeing will continue to produce the MD-80 until late 1999, when current production commitments end.

Orders: 1,191* Deliveries: 1,165

The MD-90 twinjet is a mid-sized airliner that seats up to 172 passengers. The MD-90 is the quietest large commercial jetliner, and its fuel-efficient engines are designed for reduced exhaust emissions. Boeing will continue to produce the MD-90 twinjet until early 2000, when current production commitments end.

Orders: 134* Deliveries: 98