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Additionally, it also guarantees adherence to environmental rules both today and in the future. As the fastest wide-body airplane in the world, the Boeing 747 can take off at 160 kts (184 mph) and cruise at an astonishing 660 mph (Mach 0.86). Meanwhile, the 747’s setting chosen will determine the approximate speed to land—between 145 and 150 kts (166 and 172 mph).
Engine Model
A Boeing 747 has a cross height of 35,105 ft, while the Embraer climbs 190 to 39,370 ft. At the bottom of this page, you will find an overview of the cruising altitudes of the most common aircraft at Schiphol. During takeoff and landing, a 747 flies at relatively lower altitudes compared to its cruising altitude. This is necessary to ensure proper acceleration during takeoff and a gradual descent for landing. The specific altitudes during takeoff and landing can vary depending on factors such as runway length, aircraft weight, and airport regulations. Aircraft wings can only produce so much lift, and the higher you go the thinner the air is, meaning the less lift a wing can generate.
A Boeing 747 Once Flirted With Supersonic Speed During A Dive - Jalopnik
A Boeing 747 Once Flirted With Supersonic Speed During A Dive.
Posted: Thu, 16 Dec 2021 08:00:00 GMT [source]
Speed
Boeing BBJ 747-8i - Business Jet Traveler
Boeing BBJ 747-8i.
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To yield more precise results, both formulas will be longer, but these are the major factors for optimum lift coefficient. In addition to being long and thin, the wing’s high aspect ratio increases lift and lowers fuel consumption. Plus, the wing comes with a supercritical airfoil, decreasing drag at high speeds by delaying the introduction of shock waves and having a downward slope at the trailing edge. But what about that shorter trip—a couple hundred miles or so—especially if you’re flying near large metropolitan areas? Knowing what cruise altitude works on those routes is a mystery. In an average month like September, 746 aircraft will arrive at Schiphol and an almost equal number leaves again.
Can the cruising altitude change during a flight?
Most airlines like to reach this high cruising altitude because of the costs that they will save on fuel, which is obviously a huge draw for airlines that are looking to save money. This high cruising altitude also means that there could be smooth communication between air traffic controllers and pilots because of how far apart the other aircraft will be at such altitudes. In fact, most aircraft that are in the same area stay around 1,000 feet away from each other so that they do not collide.
400 Boeing Converted Freighter
When it comes to performance, with a jet you want to fly as high as possible. The only reason not to do so is total distance; on a short hop there is not enough flying time to climb all the way up. The aircraft designer will use something like that to calculate typical values, which will be included in the aircraft's operating handbook. The larger planes, such as the Boeing 747, 777, 787 and the Airbus A330 and A380, have much more seats than the smaller Embraer 190, Boeing 737 and Airbus A320. The A380 can transport most passengers (516 seats), followed by the Boeing 747 and 777 (408 seats).
Boeing 747
Even if you stick to 'mainstream' Italian destinations, you can still spice up your time in Italy. Ride a vaporetto (a local form of taxi boat) from Venice to the colourful island of Burano, or take a westward train ride from the port city of La Spezia to the lush coast of Cinque Terre. These are great alternatives to going south and east to Florence or Pisa. What is showing up in the LEGS page is the "predicted best place" to initiate your step climb - It's saying you can climb, not saying you must (and deftinatley not saying you will). Modern planning systems can take into account weather factors such as winds aloft and turbulence to pick the most efficient route. He is passionate about antique airplanes and has restored many of the Wright brothers' planes, including the 1918 Curtiss Jenny and the 1903 Wright Flyer.
Variants
Pilots use meteorological data to meticulously arrange their itineraries so they can air travel on these unseen sky lanes. In addition to cutting down on journey time, this deliberate usage of jet streams increases the Boeing 747’s overall speed and efficiency. Every aircraft will have a different ideal altitude where it operates at maximum efficiency. The optimal cruising altitude for a Boeing 747 is 35,105 feet.
Additionally, flying at higher altitudes helps to avoid obstacles like mountains and weather disturbances. The 747’s ability to fly at higher altitudes is made possible by its powerful engines and aerodynamic design. The Boeing 747 can increase its velocity by using these jet streams because of its capacity to fly at high altitudes.
FAQs about the cruising altitude of a 747
The Intercontinental began its flight test program March 20, 2011, taking off from Paine Field in Everett, WA. It landed four hours and 25 minutes later at Boeing Field in Renton. On Jan. 22, 1970, the first 747 entered service on Pan Am Airlines’ New York–London route.
This engine is installed on several 747 models, such as the Boeing Intercontinental and Freighter. Although this component is tuned for the 747-8, its foundation is the 787 Dreamliner engine. \With contemporary engines, it significantly outperforms several rivals. There is room on the passenger plane for 416 to 660 people.
Its fuselage is stretched by 18 feet (5.5 m) to 250 feet (76 m), making it the longest airliner until the 777X, which first flew in 2020. While keeping its basic structure and sweep, the wing is thicker and deeper, holding more fuel, and wider with raked wingtips. The final aircraft, a 747-8F, was delivered to Atlas Air on January 31, 2023. The 747 is a four-engined jet aircraft, initially powered by Pratt & Whitney JT9D turbofan engines, then General Electric CF6 and Rolls-Royce RB211 engines for the original variants. With a ten-abreast economy seating, it typically accommodates 366 passengers in three travel classes.
The airplane reached a cruising altitude of 17,000 feet (5,181 m) and a speed of up to 230 knots, or about 264 miles (426 km) per hour. The flight distance will determine the approximate gross weight, which corresponds to an altitude and cruise speed that provide the best efficiency. Here is an example from a virtual 737 handbook, with the values I listed. The reason for the Boeing models’ ability to achieve its cruise speed majorly came from the GEnx engine. It is among the world’s most fuel-efficient, quietest, and cleanest turbofan engines. Rolls-Royce followed 747 engine production with a launch order from British Airways for four aircraft.
Commercial planes are one of the most common types of airplanes, which is why we will be focusing on them during this portion of the article. The normal cruising altitude for commercial airplanes is between 33,000 and 42,000 feet. This high altitude gives commercial flights the ability to have maximum fuel efficiency and reach high speeds because of the thin air. Also, being that high in the air gives airplanes and pilots the ability to safely navigate air traffic and maximize their safety while in the air and completing their normal traffic. The cruising altitude of an aircraft is determined by factors such as air traffic control instructions, aircraft weight, and performance capabilities. If multiple aircraft are flying in the same airspace, they will generally be assigned different altitudes to ensure safe separation and efficient air traffic management.
To find out what altitude works on a short flight, all I can suggest is trial and error, or maybe ask the controller if the frequency quiets down so you can plan for the next time. We started filing FL250, a good altitude for the Beechcraft King Air 350i in terms of speed and fuel efficiency. But as we flew south into the busy arrival and departure corridors for O’Hare, we were sent down. I just bought the 747 and was setting up my first flight in the FMC.
I have been flying the PMDG 737 for quite a while and thought that the FMC's would be similar. They are very much the same except in entering the cruise altitude. The higher value is perfect for piston engines and props, and the lower one for turbojets (think fighter aircraft engine).
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