波音飞机发展历程是怎样的|What is the development history of Boeing aircraft？

1.1930年，波音公司开始了全金属客机的研制，即波音247型客机。这是波音系列飞机的开始.

2.1958年，波音公司生产了波音707飞机，并投入航线飞行。它采用了涡轮喷气发动机，提高了飞机的飞行速度和飞行高度，增大了载客量和航程。是第一代喷气民用运输机。

3.1963年波音公司生产了波音727飞机，其耗油率低，发动机噪声小，具有较好的起飞着陆性能和中短程使用的经济性。

4.1967年，波音公司根据对短程航线需要的估计，生产了波音737短程运输机.

5.1968年，首架波音747出厂，1969年试飞并获得通航证。它是一种装四台涡轮风扇发动机的宽机身远程客机。其客舱内座椅安排为双过道。最多可载乘客550人。属以宽机身为主要特征的第三代喷气民用运输机机。

6.1978年，波音公司研制波音757、波音767系列的中等运载能力和中等航程的民用运输机，并于80年代生产和投入航线飞行。它们装有两台涡轮风扇发动机，可载乘客200~300人。

7.1990年，波音公司研制出的波音777型飞机是民用航空历史上最大的双发喷气飞机。

8.2007年7月8日，波音公司在西雅图波音总部举行波音787梦想飞机下线仪式。这标志着波音系列飞机进入一个新的阶段。

In 1930, Boeing began the development of an all-metal airliner, the Boeing 247. This was the beginning of the Boeing family of aircraft.

In 1958, the Boeing Company produced the Boeing 707 aircraft and put it into flight. It uses turbojet engines to increase the speed and altitude of the aircraft, increasing the capacity and range of passengers. It was the first generation of jet-powered civilian transport aircraft.

3. In 1963, Boeing Company produced Boeing 727 aircraft, which has low fuel consumption, low engine noise, good take-off and landing performance and short - and medium-range use economy.

4. In 1967, Boeing produced the Boeing 737 short-haul transport aircraft based on its estimation of the need for short-haul routes.

In 1968, the first Boeing 747 was produced, and in 1969, it was tested and received a flight certificate. It is a wide-body long-range airliner with four turbofan engines. Its cabin seating arrangement is double aisle. It can carry up to 550 passengers. It is the third generation jet civil transport aircraft with wide fuselage as its main feature.

In 1978, Boeing Company developed Boeing 757, Boeing 767 series of medium carrying capacity and medium range of civil transport aircraft, and in the 1980s production and put into flight. They are equipped with two turbofan engines and can carry 200 to 300 passengers.

In 1990, Boeing developed the Boeing 777 aircraft, which is the largest twin-engine jet in the history of civil aviation.

The Boeing 787 Dreamliner rolls off the assembly line at Boeing headquarters in Seattle, July 8, 2007. This marks a new phase in the Boeing family of aircraft.