Boeing 747 | Wikipedia audio article
Channel: wikipedia tts
Date: 07/05/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Boeing_747


00:03:14 1 Development
00:03:23 1.1 Background
00:06:09 1.2 Airliner proposal
00:09:14 1.3 Design effort
00:12:38 1.4 Production plant
00:14:08 1.5 Development and testing
00:19:21 1.6 Entry into service
00:23:43 1.7 Improved 747 versions
00:27:25 1.8 Further developments
00:32:43 2 Design
00:36:24 3 Variants
00:37:31 3.1 747-100
00:38:30 3.1.1 747SR
00:42:53 3.1.2 747-100B
00:44:45 3.2 747SP
00:47:09 3.3 747-200
00:52:21 3.4 747-300
00:56:33 3.5 747-400
01:01:01 3.5.1 747 LCF Dreamlifter
01:02:16 3.6 747-8
01:05:31 3.7 Government, military, and other variants
01:11:41 3.8 Undeveloped variants
01:11:59 3.8.1 747 trijet
01:13:07 3.8.2 747-500
01:14:09 3.8.3 747 ASB
01:15:05 3.8.4 747-500X, -600X, and -700X
01:17:27 3.8.5 747X and 747X Stretch
01:20:01 3.8.6 747-400XQLR
01:21:09 4 Operators
01:23:00 4.1 Orders and deliveries
01:23:22 4.2 Model summary
01:23:37 5 Accidents and incidents
01:26:35 6 Aircraft on display
01:31:57 6.1 Other uses
01:33:30 7 Specifications
01:33:40 8 Notable appearances in media
01:34:34 9 See also



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SUMMARY
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The Boeing 747 is an American wide-body commercial jet airliner and cargo aircraft. The first wide-body airplane produced, it was the first plane dubbed a "Jumbo Jet". Its distinctive hump upper deck along the forward part of the aircraft has made it one of the most recognizable aircraft. Manufactured by Boeing's Commercial Airplane unit in the United States, the 747 was originally planned to have 150 percent greater capacity than the Boeing 707, a common large commercial aircraft of the 1960s. First flown commercially in 1970, the 747 held the passenger capacity record for 37 years.The quadjet 747 uses a double-deck configuration for part of its length and is available in passenger, freighter, and other versions. Boeing designed the 747's hump-like upper deck to serve as a first–class lounge or extra seating, and to allow the aircraft to be easily converted to a cargo carrier by removing seats and installing a front cargo door. Boeing expected supersonic airliners—the development of which was announced in the early 1960s—to render the 747 and other subsonic airliners obsolete, while the demand for subsonic cargo aircraft would remain robust well into the future. Though the 747 was expected to become obsolete after 400 were sold, production passed 1,000 in 1993. By July 2018, 1,546 aircraft had been built, with 22 of the 747-8 variants remaining on order.  As of January 2017, 60 of the jets have been lost in accidents in which a total of 3,722 people died.The 747-400, the most common variant in service, has a high-subsonic cruise speed of Mach 0.85–0.855 (up to 570 mph or 920 km/h) with an intercontinental range of 7,260 nautical miles (8,350 statute miles or 13,450 km). The 747-400 can carry 416 passengers in a typical three-class layout, 524 passengers in a typical two-class layout, or 660 passengers in a high–density one-class configuration. The newest version of the aircraft, the 747-8, is in production and received certification in 2011.  Deliveries of the 747-8F freighter version began in October 2011; deliveries of the 747-8I passenger version began in May 2012.