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The FAA's own history (MMAC Monroney news) says "The FAA certificated the 747 on Dec 30, 1969"; HistoryLink[4] agrees ("On December 30, 1969, the FAA certified the Boeing 747"). A Pan Am[5] engineer's account puts the formal Approved Type Certificate paperwork a day later, on 31 December.- Inizio
- 30 dic 1969AFFIDABILITÀ 90%da la fonte
FAA Certifies the Boeing 747 for Passenger Service
The FAA certificated the Boeing 747 on 30 December 1969 after about 10 months of flight testing, clearing the first widebody jetliner for airline service. Pan Am's first revenue flight followed on 22 January 1970.
- The FAA certificated the 747 on 30 December 1969, after a test program that began with the 9 February 1969 first flight[1][4]
- More than 1,400 flight hours were logged on five 747s in 1,013 flights, described as the most rigorous flight-test program in aviation history[4]
- A Pan Am chief engineer's recollection says the formal Approved Type Certificate for the model was issued on 31 December 1969, a day after the date the FAA and HistoryLink give for certification[5]
- Pan Am inaugurated 747 service from New York to London on 22 January 1970; TWA flew the first transcontinental 747 service, Los Angeles to New York, on 25 February 1970[1]
- Certification opened the jumbo era: the 747 carried up to 450 passengers, 270,000 lb of cargo or a mix[4]
Notable features
- 747-100: length 231 ft 10 in, wingspan 195 ft 8 in[4]
- Engines: four Pratt & Whitney JT9D-3 turbofans, 43,500 lbf each[1]
- Weights: maximum takeoff 710,000 lb at certification per the FAA's history (HistoryLink gives 735,000 lb); maximum payload 220,000 lb[1][4]
- Seating: up to 490, with most airlines planning 350-365 in mixed-class layouts[1]
- Range: about 6,000 miles per HistoryLink; Wikipedia lists 4,620 nmi (8,560 km) for the original 747-100 at its initial weight[2][4]
- Cruise over 600 mph and a service ceiling of 40,000 ft[4]
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