How old is the average 747?
On average, an aircraft is operable for about 30 years before it has to be retired. A Boeing 747 can endure about 35,000 pressurization cycles and flights—roughly 135,000 to 165,000 flight hours—before metal fatigue sets in. 747s are retired after approximately 27 years of service.
How long can a b747 fly?
250′
Boeing 747-8/Length
Is the b747 safe?
On the other hand, the Boeing 747 becomes a much safer model than initially expected. We also saw that the fatalities of the ATR models are relatively small, but given their small seating space, those numbers represent a very large fatal accident rate.
How fast can a 747 go?
659.85 mph
The 747 is one of the largest commercial aircraft ever built, and the 747-8 Intercontinental (747-8i) variant wins the race as the fastest commercial plane in service today. This plane is as tall as a six-story building with a top speed of Mach 0.86. That’s equivalent to 659.85 mph.
Which is faster 747 or 777?
Boeing 747 vs 777: Specs
| Specifications | 747-400 | 777-300 |
|---|---|---|
| Cruise Speed | 0.855 Mach (933 km/h; 656 mph; 504 kn) | 0.84 Mach (892 km/h; 645 mph; 482 kn) |
| Range | 7,670 nmi (8,826 mi; 14,200 km) | 7,370 nmi (8,481 mi; 13,649 km) |
| MTOW | 910,000 lb (412.8 t) | 775,000 lb (351.5 t) |
| Service Ceiling | 45,100 ft (13,700 m) | 43,100 ft (13,100 m) |
How many engines can a 17 fly on?
Technical Specifications
| First flight | July 28, 1935 (prototype) |
|---|---|
| Range (max.) | 3,750 miles |
| Ceiling | 35,600 feet |
| Power | Four 1,200-horsepower Wright R-1820-97 engines |
| Accommodation | 2 pilots, bombardier, navigator, radio-operator, 5 gunners |
Do they still make 747?
Boeing’s most iconic aircraft — the 747 — is celebrating 51 years of passenger service in January. Most of the world’s airlines, however, are retiring their 747s in favor of new, fuel-efficient jets. The final models will be delivered to cargo giant Atlas Air in 2022, marking the end of the program.
