The Boeing 747, which is also known as the jumbo jet, was the largest passenger airliner in service. However, it was surpassed by the Airbus A380 which was entered service on 2006. The four engine 747, produced by Boeing Commercial Airplanes, uses a two deck configuration where the small upper deck is usually used for business class. A typical three class layout accommodates about 400 passengers while a one class layout accommodates a maximum of 600 passengers. The hump created by the upper deck has made the 747 a highly recognizable icon of air travel.