The Boeing 747-300 has been ordered so far by 12 airlines. South African Airways (inset) was the second launch customer for the stretched-upper-deck variant. This airline, as well as Korean Air (main photo), have specified Pratt & Whitney JT9D-7R5G2 engines.
Boeing 747-300 in service with Qantas, one of the 12 airlines that have ordered this version of the Jumbo to date.
The Boeing 747-300 has been ordered so far by 12 airlines. Swissair was the launch customer for the stretched-upper-deck variant
Japan Air Lines - which is the biggest user of the 747 in all its variants - specified Pratt & Whitney JT9D turbofans.
The manufacturers of large transport aircraft can choose from three families of powerful turbofans, but only the Boeing 747, to date, is actually in service with all three - Pratt & Whitney JT9D, General Electric CF6-50 and Rolls-Royce RB.211. The KLM 747-300 illustrated uses CF6s.
French operator UTA uses General Electric CF6-50E2 engines in its Boeing 747-300s
One of several possible layouts on the stretched upper deck, with four- abreast seating.
Replacing the early spiral staircase that took passengers to the front of the top deck is this straight stairway to the rear of the upper deck, conveniently placed for the forward main deck entry door.
This view on the main deck of a 747 shows the new enlarged luggage bins now available, compared with (top right hand corner) the original design.
A Boeing drawing showing how the 747 might evolve by the end of the next decade, with stretched fuselage, a new wing and ultra by-pass engines.