How many generators does a 747 airplane have?
The split-parallel system is found on the Boeing 747-400 and contains four generators driven by the main engines and two APU-driven generators. The system can operate with all generators in parallel, or the generators can be operated independently as in a splitbus system.
What materials are used on the Boeing 747?
The modern Boeing 747 is an aluminum airplane as well. Other metals, such as steel and titanium, are sometimes used to build aircraft. Steel is heavy though, so not too much is used. Titanium is almost as strong as steel, has a medium weight, is heat resistant, and is corrosion resistant.
How many engines can fail on a 747?
While it’s very clear that a 747 is unable to properly fly with the failure of three engines, we can see that a single functioning engine would at least extend the aircraft’s distance and prolong its time in the air. Hopefully, this would buy enough time and distance for the 747 to reach a suitable landing spot.
Why did 747 stop production?
Boeing has announced that production of the iconic 747 will come to an end in 2022 as dwindling customer demand and low sales for its latest variant became the final nail in the coffin for the aging plane line. The 747 was the first quad-jet engine and dual-level passenger aircraft to roam the skies.
How much electricity does a 747 generate?
If you power the whole plane with batteries, you’d need 47 million AA batteries. Of course, if you manage to get 14 of these electrical 747s together, you can generate 1.21 gigawatts and get Back to the Future. Thanks for putting that 90 MW into perspetive.
How much power does a 747 engine produce?
The power per engine for the two aircraft is seen to be 14 984 horsepower and 1646 horsepower for the 747 and Super Constellation, respectively….
| Characteristic | Lockheed 1049G | Boeing 747 |
|---|---|---|
| Number of engines | 4 | 4 |
| Total cruise power, hp | 6 585 | 59 934 |
| Power per engine, hp | 1 646 | 14 984 |
| Dry engine weight, lb | 3 675 | 8 600 |
Why is depleted uranium used as ballast?
But why was this material used? Depleted uranium was selected for its high density. Thus it had much more mass relative to its volume. In other words, compared to other metals and materials, it didn’t take up much space but weighed enough for its role as a mass balance weight.
How much aluminum is in a 747?
Take the Boeing 747-400, for example. According to a post in the Science-Based Life blog, the 747-400 consists of 147,000 pounds (66,150 kg) of high-strength aluminum. That’s almost 75 tons of aluminum (along with 171 miles (274 km) of wiring and 5 miles (8 km) of tubing!)
How does an IDG work?
IDG provides electrical power for All the aircraft systems. It consists a generator and a Constant Speed Drive (CSD). The generator uses the kinetic Energy of the Aircraft Engines and convert it into Electrical energy. CSD coverts variable input of the engine into a fixed rotational speed for generator.
How much HP does a 747 engine have?
The hp of every plane can vary. According to calculations, while the jet engine of a Boeing 777 has a horsepower of 30,843, the jet engine of a Boeing 747 has a horsepower of 59,934.
Why does a 747 use depleted uranium?
John Newland, a spokesman for the Boeing Co. in Seattle, which makes 747s, said about 950 pounds of depleted uranium are added to the tail of every 747 to counterbalance the upper rudder and outer elevators, which help the planes go up or down.
How many gallons of fuel does a 747 carry?
Let’s start with a look at the most famous of jets, the Boeing 747. The Boeing website states that this model, with a gas tank capacity of 63,500 gallons, may burn five gallons of jet fuel per mile of flight.