Boeing 747-400 |
Posted on Wednesday, August 30 @ 18:59:57 BST by aircraftinfo |
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  Boeing launched its 747 program in 1966 when Pan Am placed an order for 25 of the giant double-decker jets. 30 years later (as of 1996), the 747 is still the largest commercial airliner ever built. After delivering 167 of the original 747-100s, Boeing moved on to the more powerful 747-100B and then delivered 225 of the 747-200 series which carried a standard load of 374 passengers. These early models have as many as 971 lights, switches, and gauges on the flight deck.
In 1983 the modernized 747-300s entered commercial service with an extended upper deck and more fuel-efficient engines. The latest, and largest, version of the 747 was put into service by Northwest Airlines in early 1990. These 747-400s typically carry 420 passengers as far as 8,000 miles and feature 6-foot-high winglets as well as an even longer upper deck. Plans for a still larger 747-500 are underway. With well over 1000 747s delivered, the fleet has carried more than 1.8 billion passengers for more than 24.7 billion miles. Two 747-200s serve as presidential airplanes (Air Force Ones) and another was modified to shuttle the U.S. space shuttle between California and Florida.
William E. Boeing produced his fist two B&Ws (a single- engine seaplane) in 1916 and the following year, the U.S. Navy ordered 50 of Boeings next model (the two- seat model C trainer)to serve in in World War I. Boeing continued to make airplanes, both commercial and military, producing such famous models as the Pan American "Clipper" flying boat and the "Stratoliner" (first pressurized cabin). In World War II, Boeing became an integral part of the allied effort by building the B-17 and B29 bombers. In the post-war era, Boeing continued making military aircraft such as the B-47 and B-52 bombers but also recognized the huge market for commercial jet aircraft and thus developed the 707 which would help revolutionize air travel. Today, with jets in operation for carriers in 120 different countries, Boeing is best known as the world's largest manufacturer of commercial aircraft. The Boeing company is headquartered in Seattle, Washington and employs approximately 120,000 people. In recent years, Boeing has consistently been one of the top three exporters in the United States.
747-400 Weights
| Empty Weight: |
(P) 339,000-lbs
(C) 399,100-lbs
(R) 402,900-lbs |
| Maximum Takeoff Weight: |
(P) 800,000-lbs
(C) 850,00-lbs
(R) 870,000-lbs |
| Payload: |
249,122-lbs of cargo |
747-400 Performance
| Cruising Speed: |
583 mph |
| Initial Cruise Altitude: |
32,900 feet at highest optional Takeoff weight |
| Range: |
(P) 8,245 miles
(C) 8,320 miles
(R) 8,170 miles
Assumes typical international rules, 420 three-class passengers, at highest optional takeoff weight. |
747-400 Dimensions
| Wingspan: |
211 feet 5 inches |
| Length: |
231 feet 10 inches |
| Height: |
63 feet 8 inches |
| Wing Area: |
5,825 square feet |
747-400 Powerplants
| No. Engines: |
Four |
| Engine Manufacturers: |
Pratt & Whitney (P)
General Electric (C)
Rolls-Royce (R) |
| Engine Designation: |
PW4056 turbofans (P)
CF6-80C2B1F turbofans (C)
RB211-524H turbofans (R) |
| Engine Power: |
(P) 57,900-lbs st each
(C) 58,000-lbs each
(R) 60,600-lbs st each |
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