One of the main requirements for the military transport design was for a nose loading cargo door with clear access to the main deck. The Boeing design featured a bubble atop the fuselage forward of the wing leading edge. During this time, commercial aviation was growing at a rapid pace.
The jet age was finding its feet with the very popular Boeing and Douglas DC8 being the workhorses of the day. Juan Trippe of Pan Am, one of Boeings biggest customers, approached Boeing to press them to look at building an aircraft twice the size of the and DC8. Trippe advocated that a larger aircraft would be the solution to the congestion at airports, reducing the number of relatively smaller aircraft required to move the same amount of people.
In Boeing put together a design team to work on the new airliner which was already given the Boeing designation. Some features were retained, but others such as the high wing design were discarded.
The design also had to be future proof. At this time in aviation, it was felt that supersonic travel had every chance of becoming the norm, so Boeing had to take an each-way bet.
The design team for the Boeing had to come up with an aircraft that met the requirements of airlines who wanted mass passenger movement, but at the same time had the ability to be an effective freighter. Pan Am became the launch customer for the Boeing in April by ordering 25 Boeing s. Being involved from the beginning of the design and development of the Boeing , Pan Am influenced these phases more than any other airline before or since.
Initial designs of the called for a twin-deck aircraft, with two decks running the full length of the fuselage. This gave a very effective increase in capacity, however, the ability to evacuate two decks of passengers was found to be not possible within the recommended second limit. Boeing opted for a single main deck which was then widened from the standard economy configuration of the day of three and three with a single aisle to a twin-aisle layout with seating in three four three.
One of the main enablers that made such a larger aircraft possible was the advent of high bypass turbofan engines. General Electric had applied the principal to the C5 Galaxy project. This aircraft is based on the Boeing Other older Boeing s operate as VIP aircraft. Military and VIP aircraft operate fewer flight cycles, which means more downtime for maintenance. The oldest of the Dreamlifter is just over 30 years old, NBA.
This Boeing flew for China Airlines for about 15 years before Boeing took it over. This aircraft is about 31 years old and flew first for United Airlines. The spent some time on the ground before Mahan Air took it on in While Mahan Air kept the aircraft on the ground for some time, it came back into service in and has been flying since then.
Mahan Air is an Iranian airline that, due to sanctions, is unable to acquire newer aircraft. As a result, it has to operate old aircraft and keep them in good working order. Air China operates two Boeing jets that are 26 and 25 years old, respectively. On Feb. The program was canceled in , and in , YAL-1 was flown to the U. Another variant is the Dreamlifter — a specially modified — that transports the large composite structures, including huge fuselage sections of the Dreamliner, from partners around the world to Everett, Wash.
The massive cargo is loaded and unloaded from a hinged rear fuselage. The fourth and final Dreamlifter entered service Feb. The longer range airplanes also known as ERs were launched in late The ER Extended Range family is available in both passenger and freighter versions. The airplanes are the same size as current s and have a range of 7, nautical miles 14, kilometers as opposed to the range of 7, nautical miles 13, kilometers.
It incorporates the strengthened Freighter wing, strengthened body and landing gear, and an auxiliary fuel tank in the forward cargo hold, with an option for a second tank. When the ER's full-range capability is not needed, operators can remove the tank or tanks , freeing up additional space for cargo. In November , Boeing launched the family — the Intercontinental passenger airplane and the Freighter.
These airplanes incorporate innovative technologies from the Dreamliner. In fact, the designation was chosen to show the technology connection between the Dreamliner and the new , including the General Electric GEnx-2B engines, raked wingtips and other improvements that allow for a 30 percent smaller noise footprint, 15 percent reduction in-service carbon emissions, better performance retention, lower weight, less fuel consumption, fewer parts and less maintenance.
The Freighter first flew on Feb. The airplane is feet, 2 inches The stretch provides customers with 16 percent more revenue cargo volume compared with its predecessor.
That translates to an additional four main-deck pallets and three lower hold pallets.
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