The Boeing 747-8 is a wide-body airliner developed by Boeing Commercial Airplanes, the largest variant of the 747. After introducing the 747-400, Boeing considered larger 747 versions as alternatives to Airbus's proposed Airbus A3XX. The stretched 747 Advanced was launched as the 747-8 on November 14, 2005, for a market forecast of 300 aircraft. The first 747-8F Freighter performed its maiden flight on February 8, 2010, and the passenger 747-8I Intercontinental followed suit on March 20, 2011. The cargo version was first delivered in October 2011 and the airliner began commercial service in June 2012.