Boeing 747-8

The Boeing 747-8 is a large body aircraft developed by the Boeing Company for the aircraft industry, the fourth version of the Boeing 747 generation, with a longer hull, new design wings and improved efficiency. The 747-8 is the 747- Commercial built in the USA and the longest in the world. [1] It was officially announced in 2005. This version is a radical development of the Boeing 747-400. The maximum takeoff weight (MTOW) is 440,000 kg. The 747-8 is the heaviest US civilian or military production aircraft. [2] The aircraft is designed to compete with the Airbus 380.

The Boeing 747-8 is a large body aircraft developed by the Boeing Company for the aircraft industry, the fourth version of the Boeing 747 generation, with a longer hull, new design wings and improved efficiency. The 747-8 is the 747- Commercial built in the USA and the longest in the world. [1] It was officially announced in 2005. This version is a radical development of the Boeing 747-400. The maximum takeoff weight (MTOW) is 440,000 kg. The 747-8 is the heaviest US civilian or military production aircraft. [2] The aircraft is designed to compete with the Airbus 380.

Boeing announced that it had launched the 747 developed under the name Boeing 747-8 on 14 November 2005 [7]. . Boeing says it uses a calmer, more economic and more environmentally friendly design than previous versions of the 747. Since it is derived from the known version 747-400, it has economic benefits similar to the training and the possibility of replacing the pieces between them. Also certification is another point of saving over the new Airbus A380.
The 747-8 is the most advanced aircraft of the present. Especially in light of the direct competition to accommodate the long distance with the Airbus 380, a large area and very comfortable and has two floors full and currently in service. Airlines looking for aircraft with a very large load of passengers, two of them have turned their applications to the other competitor for various reasons. Due to the delay of the A380 program in October 2006, FedEx and UPS canceled their request for the A380 cargo plane, followed by multiple customers who dialed the connection or switched to 747-8 and 777F [8] [9]. But none of the customers canceled their demand for a passenger plane for the Airbus 380 during March 2008. Lufthansa remains the only company that has requested a passenger version of the 747-8.
The 747-8 has planned to enter the service in 2009, while the passenger version has been introduced in 2012, and the first passenger to use the official version is the German Lufthansa.

the design

نتيجة بحث الصور عن صور بوينج 747-8

8-747 is a developed model of the Boeing 747 and has taken advantage of advanced technology and aerodynamics. Both versions were introduced from 747-8 in 2005. The chassis was extended to 5.6 meters from Boeing 747-400, making a total length of 76.4 meters, and that extension made the 747-8 the longest passenger plane, surpassing the Airbus 600-380 by 1.1 meters . In comparison to the 747-400, the main technical changes will be the wings of the aircraft, which undergoes a complete design examination. The backbone and backward wing will remain the same, but the wing will be thicker and deeper, taking into account aerodynamics with differing pressure distribution and torque. The passenger wing of the passenger jet will carry a quantity of fuel (243,120 liters) of jet fuel as planned. The shipping version will carry (230,625 liters) of fuel [10]. Therefore, the extra capacitance to carry fuel to these wings eliminates the need for any radical change in the shape of horizontal tail compared to the old form of the aircraft 400-474, which saves some costs [11]. However, the vertical shaft will rise slightly to 19.5 meters by that plane. [10]
Some parts of the structure will use carbon fiber reinforced plastics to provide weight. Overall, structural changes compared to the Boeing 747-400 are evolutionary rather than radical changes. Flight 747-8 will show wing strength with aerodynamic strength. It will have an external one-shot flip flop and a two-tiered internal cast. The wings are twisted and similar to the Boeing 777-200 / 300 and the Boeing 767-400. This design reduces the whirlpools produced by the wing on the side edges of the wings, reducing the turbulent output behind the aircraft and also the clouds, thus increasing fuel efficiency and reducing Consumption.
GE engines, one of the two engines currently on the 787, will be the only engine available for the 747-8. But the 747 versions will adapt to provide a system of air hemorrhage for conventional aircraft systems and will be introduced with a smaller diameter to be fitted to those wings. This is an agreement GE has made with Boeing, meaning that there will be no other engine capable of matching 747-8 over the next 10 years

Boeing 747-8F 

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747 proved its efficiency as a cargo plane carrying half of the global air cargo [12]. To maintain that hegemony, Boeing designed a 747-8 freight version called the 747-8 Freighter or 747-8F. It will be a primary copy to monitor its entry into service. This version is the upper deck, shorter than the passenger version. There is an increase of (5.6 meters) in the pavilion. The maximum take-off weight is 440,000 kg, with a total load of 140,000 kg and a distance of 8275 km or 5140 miles [13]. Four loading areas were created on the main floor, plus two additional containers and two additional storage basements.
The aircraft will have a more payload capacity but a shorter range than the Boeing 747-400 ARF. When Boeing introduced an ERF version, the increase was 35,000 pounds for maximum take-off weight, making the plane take off more fuel and land with the same weight as Boeing 747-400F. Cargo companies such as Cargolux take loads as an indivisible load or cargo, requiring higher-load aircraft and better landing potential. Also known as cargo planes, the range is given maximum load and not fuel. So this aircraft has an increase in maximum take-off weight of 70,000 pounds (970,000 pounds). If they take off at maximum load, they take off half-empty tanks. In a journey that is not very heavy, the aircraft carries more fuel and longer

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