1. What kind of airplane is Boeing 737-800?
Boeing 737-800 is a twin-engine turbofan short- and medium-range narrow-body passenger aircraft designed and produced by Boeing in the United States. It belongs to Boeing 737NG series and is an extended fuselage version of Boeing 737-700 aircraft, replacing Boeing 737-400, while filling the gap left by the retirement of MD-80 and MD-90. The instrument panel of the Boeing 737-800 cockpit adopts a new large display screen, and the wings can optionally be equipped with winglets .
The Boeing 737-800 project was officially launched on September 5, 1994, and made its first flight on July 31, 1997. On March 13, 1998, it obtained the type certificate of FAA, and on April 9, it obtained the type certificate of the European Joint Aviation Administration. On April 22, the first 737-800 was delivered to the customer.
2. What are the outstanding features of Boeing 737-800?
The Boeing 737-800 is a member of the Boeing 737NG and is an improved version of the then new generation of Boeing 737NG series aircraft. The design of the Boeing 737-800 wing adopts new advanced technology, which not only increases the fuel capacity but also improves efficiency, which will undoubtedly help extend the flight range. It is reliable, simple, and highly economical in operation and maintenance costs. The cockpit instrument panel adopts a new large display screen. Boeing 737-800 models can optionally be equipped with winglets. It is worth mentioning that the Boeing 737-800 is an extended fuselage model of the Boeing 737-700, directly replacing the Boeing 737-400.
The Boeing 737-800 can carry 162-189 passengers. In a two-class cabin configuration, it can carry 162 people; in an all-economy cabin configuration, it can carry 189 passengers. The Boeing 737-800 has a range of 5,665 kilometers (3,060 miles). This model also has the BBJ2 executive jet model and the military model 737-800ERX (Extended Range, extended range).
3. What are the important performance data of Boeing 737-800?
Cabin width: 3.53 meters
Number of seats: (two-cabin layout) 164 people/(single-cabin layout) 189 people
Empty weight: 41.413 tons (91,300 pounds)
Maximum take-off weight: 78,245 kg (172,500 pounds)
Maximum landing weight : 66,360 kg (146,298 lb)
Maximum taxiing weight: 174,698 lb
Maximum fuel capacity: 26,025 liters (46,067 lb)
Cruise speed: Mach 0.785 (848 km/h)
Maximum speed: Mach 0.82 (880 km/h) hours)
Maximum range: 3200 nautical miles
Maximum cruise altitude: 12400 meters
Take-off field length: 2027 meters
Landing field length: 1327 meters
Power plant: Two CFM56-7B turbofan engines
Maximum thrust: 27,300 pounds (CFM56- 7B27 engine)
4. What kind of aero engine does Boeing 737-800 use?
Boeing's 737-800 has a maximum passenger capacity of 189 people and is equipped with CFM-56 engines. It is worth mentioning that airlines are free to select and replace engines from other suppliers. It is reported that the CFM engine is jointly manufactured by General Electric Company and the French Safran Group. Let’s take a look at the two giant companies:
General Electric Company (GE) of the United States: is the world’s largest diversified service company, ranging from aircraft engines and power generation equipment to financial services, from medical imaging , and television programs. Plastics, General Electric Company's history can be traced back to Thomas Edison , who founded the Edison Electric Light Company in 1878. In 1892, the Edison Electric Light Company and the Thomson-Houston Electric Company merged to form General Electric Company (GE). General Electric's electrical products have relatively mature technology and a wide range of products. In addition to producing consumer appliances and industrial electrical equipment, it is also a huge arms contractor, manufacturing aerospace instruments, jet pilot and navigation systems, multi-warhead ballistic missile systems, radar and space flight systems. For example, the world-famous Atlas rocket and Thor rocket that can carry atomic bombs and hydrogen bombs are produced by this company.
companies: GE Capital, GE Aviation Financial Services, GE Commercial Finance, GE Energy Financial Services, GE Financial, GE Funds, GE Technology Facilities, GE Aviation, GE Enterprise Solutions, GE Healthcare, GE Transportation, GE Energy Facilities, GE Water treatment, GE oil and gas, GE energy, GE consumer and industrial, GE equipment, GE lighting, GE power distribution
French Safran Group: is a world-class aerospace engine and equipment manufacturer, providing high-tech solutions to customers around the world , used in aircraft, helicopters, missiles , aerospace thrusters and equipment for the civilian and military markets. Safran Group designs, develops, produces and sells aviation propulsion systems and equipment around the world, and provides maintenance and overhaul services. Safran is involved in many of the world's largest aerospace projects, either alone or in partnership with other companies. SAFRAN Group is a high-tech multinational group company, one of the world's top 500 companies, with four core majors: aerospace propulsion, aerospace equipment, defense-security and communications. The companies of the Safran Group include: Sagem Group, Aircelle Group, Hispano-Suiza Group, Labinal Group, Messier-Bugatti Group, Messier-Dowty Group, Morpho Group, Snecma Group, SNECMA Propulsion Solide Group, Techspace Aero Group, Turbomeca Group etc., it is in a leading position in the world or Europe through independent development or cooperation. Its main business is the development and production of aircraft power units, and its Snecma company is responsible for the European Ariane 1-5 rocket and Design and development of propulsion systems for liquid boosters.
The so-called CMF: refers to CFM International Company, which is composed of French SNECMA Company and American GE Company. In 1969, the French government proposed the topic of researching 10t thrust-class turbofan engines in response to the international civil aviation market situation.
CFM is a well-known aviation gas turbine engine manufacturer. Its most famous product is the CFM56 series engine, equipped with the 737 series, 320 and 340-300. Because of the CFM engine, it has been recognized by the world's aircraft manufacturing industry as one of the best aero engines. In 1969, the French government proposed the topic of studying a 10t thrust class turbofan engine in response to the international civil aviation market situation. CFM International has become one of the world's largest commercial aircraft engine manufacturers. It is a 50-50 joint venture between General Electric of the United States and SNECMA of France (Safran Group).
After analysis and investigation, the French company SNECMA selected the American GE Company as a partner at the end of 1971 to develop an engine based on the core engine of the American F101 military turbofan engine that met the low fuel consumption, low noise, and low pollution requirements of aircraft in the 1980s. Especially in November 1971, the two companies decided to jointly develop a 10,000daN-class engine with a large bypass ratio . The design was completed and trial production started in February 1972. In September 1974, CFM International was officially formed. The engine was named CFM56. The first two engines of trial production were tested on the test benches of the two companies. A total of 11 engines were used for development and testing, 5 of which were used for flight testing.
CMF engine thrust control principle and method: The working state of the aero engine changes with changes in the aircraft's flight conditions. To keep the engine in a given working state during flight, change the engine's working state according to the desired rules. The engine must be controlled (including thrust control, transition control and safety limits, etc.).
The CFM56-3 engine is mainly controlled by the power management controller (PMC) and the main engine controller (MEC); the CFM56-7 engine is mainly controlled by the electronic engine controller (EEC) and the hydraulic mechanical unit (HMU). And air path control.
CFM56-3 engine control system hydraulic mechanical components include MEC, fan inlet temperature (FIT) sensor, VBV's hydraulic motor and actuator, VSV actuator, high-pressure compressor (HPC) inlet temperature sensor, high-pressure turbine Clearance control valve (HPTCCV). Electrical components include power management controller (PMC), control generator, fan speed sensor, fan inlet temperature sensor and fan inlet static pressure sensor.
Engine Indication (EIS) is an indication provided to monitor the working status of the engine.The CFM56-3 engine indication system is mainly located on the engine main display assembly and secondary display assembly in the cockpit. The main display component provides thrust mode, N1 manual setting, exhaust gas temperature (EGT), N1 speed, N2 speed, fuel flow (FF), and fuel consumption (FU) indications. When EGT, N1, N2 exceeds the limit, each parameter of the engine will be stored in the memory. The secondary display component provides total atmospheric temperature (TAT), engine oil pressure, oil temperature, oil volume, vibration value, pressure and oil volume of hydraulic system A and B.
The engine vibration value is provided by the aircraft vibration system (AVM). The engine vibration sensor, N1 and N2 sensors send signals to the AVM regulator, which are processed by the AVM regulator and then sent to the secondary display component. The AVM regulator can record the vibration of each unit of the engine, especially vibration failure data.
CFM56-7 engine thrust control is mainly EEC (engine electronic controller) using the aircraft bleed air mode, static pressure, thrust rating, aircraft model and aircraft Mach number to calculate the corresponding N1 reference speed, using the N1 reference speed The N1 of the engine is calculated from these three signals, the angle of the throttle lever solver and the actual value of N1. The command value is output to HMU. After receiving the instruction, the HMU completes the adjustment of its internal fuel metering valve and the hydraulic servo fuel supply to the engine service system (VSV, VBV, TBV, BSV, HPTACC, LPTACC, etc.) to determine the position of the service system components. Implement the instruction value of N1.
5. How many air crashes have there been in the history of Boeing 737-800 passenger aircraft?
1, 2006
At 16:48 pm on September 29, 2006 (3:48 pm on the 30th, Beijing time), a Boeing 737-800 passenger plane of Brazil's Gol Airlines carrying 154 people and a small business jet Missing after the collision. The plane was supposed to fly to Rio de Janeiro after a stopover in Brasilia. The scheduled landing time in Rio de Janeiro was 18:10. On September 30, a mayor in the Brazilian Amazon region confirmed that the passenger plane crashed in a remote farm in the Amazon, but the passenger plane broke up in the air before the crash. The small business jet that collided with it suffered damage to its wing but landed successfully.
2, 2007
On May 5, 2007 Kenya Airways A Boeing 737-800 passenger plane crashed after taking off from Douala, Cameroon. There were a total of 114 people on board the flight, including 82 African passengers, 21 Asian passengers, 7 European passengers and 1 American passenger. The passenger plane involved in the accident was originally scheduled to arrive in Nairobi, the capital of Kenya, on the morning of the 5th. Its departure airport was Abidjan, the capital of Cote d'Ivoire, passing through the port city of Douala in Cameroon. There were 114 people on board. Among the people, 105 were passengers and the other 9 were crew members. No one survived.
3, 2009
An American Airlines Boeing 737 overshot the runway at Kingston International Airport in Jamaica on the evening of December 22, local time, injuring 40 passengers. On February 25, 2009, Turkish Airlines Flight 1951 stalled and crashed 3 kilometers away from the airport due to flight control instrument failure and pilot error. The accident resulted in 9 deaths and 55 injuries.
4, 2010
An Indian Express Boeing 737-800 passenger plane carrying 166 people crashed while landing at Mangalore Airport in southern India on the morning of May 22, 2010, killing 158 people on board and only 8 People were rescued, but one child among the rescued people died, bringing the death toll to 159. The passenger plane's excessive descent rate during landing, late touchdown, and misjudgment by the captain resulted in a go-around that took a long time after landing. The go-around failed. It overran the runway, hit the separation wall, caught fire and broke into pieces, leading to tragedy.
flight from Beirut Rafik Hariri International Airport in Lebanon to Ethiopia's Addis Ababa Bole International Airport lost contact with the airport control tower at 2:35 a.m. local time Beirut less than five minutes after takeoff contact, caught fire and crashed into the Mediterranean Sea south of Beirut and 3.5 kilometers away from the coast. The crashed passenger plane was carrying 83 passengers and 7 crew members.
5, 2013
On the evening of August 25, 2013, Shenzhen, Shenzhen Airlines flight ZH9969, triggered a fire alarm due to APU (auxiliary power system) mechanical failure when it taxied out of Shenzhen Airport, causing smoke to emit from the tail of the aircraft. In the incident, 12 passengers suffered minor scratches due to emergency evacuation from the slide, but no one died.
6, 2014
At about 18:00 in the evening on June 26, 2014, after the flight MU2541 from Guangzhou to Wuhan, a Wuhan subsidiary of China Eastern Airlines, landed normally, the front wheel temporarily jammed during taxiing, and the aircraft stayed on the taxiway. There were no casualties.
7, 2015
According to Nigeria media reports, on the afternoon of October 20, two Boeing 737-800NG aircraft owned by Nigeria’s Arik Air flew into the Murtala Muhammed International Airport in Lagos. A ground collision occurred on the tarmac of the airport's (MMIA) general aviation terminal. After the incident, Arik Air grounded the two aircraft.
8, 2016
On March 19, 2016, a Boeing 737-800 passenger plane crashed in Rostov-on-Don, a city in southern Russia, in the early morning of the 19th. All 62 people on board were killed, including 55 passengers and 7 crew members. The passenger plane, owned by flydubai, was flying from Dubai, United Arab Emirates to Rostov-on-Don . It crashed when landing at the airport
9, 2019
In November 2019, a Boeing 737-800 of Ukrainian SkyUp Airlines crashed in Sharm, Egypt. Fire broke out after landing at El Shaikh Airport. After the flames burned for about a minute, airport staff used a fire extinguisher to put it out. The airline said that none of the 196 passengers on board the plane was injured and that the fire may have been caused by an oil leak.
10, 2020
On February 5, 2020, Turkey a Boeing 737-800 airliner flying from Izmir to Istanbul skidded off the runway at Istanbul Sabiha Gokcen Airport and suffered serious injuries. Damaged, broken into three pieces. The accident has killed 3 people and injured 179 people.
11, 2022
3·21 China Eastern Airlines passenger plane accident. On March 21, 2022, a China Eastern Airlines Boeing 737 passenger plane lost contact over Wuzhou while performing a Kunming-Guangzhou flight mission. The plane has been confirmed to have crashed. There were 132 people on board, including 123 passengers and 9 crew members.
6. What is the global usage of Boeing 737-800 aircraft?
Boeing Company is the world's largest aerospace industry company and the largest manufacturing exporter in the United States. Boeing supports airline and government customers in more than 150 countries and territories around the world. Boeing's products and customized services include civil and military aircraft, satellites, etc. Boeing products include the new generation 737 (ie 737NG), 737MAX, 747_8, 777, 777X, 787 Dreamliner, Boeing Business Jets, cargo aircraft, etc.
The Paper previously reported that the Boeing 737-800 belongs to the 737NG. Before the launch of the 737MAX, it was once the main model of Boeing's single-aisle aircraft. It is currently the most used Boeing airliner in our country and one of the most popular single-aisle airliners in the world. . Reporters from The Paper found that Boeing 737-800 aircraft suffered multiple serious accidents in the five years from 2016 to 2020. The usage in other countries is as follows:
Ethiopian Airlines : announced on March 11, 2019, that it would suspend the commercial operation of all Boeing 737 MAX8 aircraft;
the Civil Aviation Authority of Singapore : announced on March 12, 2019 that it would temporarily ban all Boeing 737 MAX8 aircraft. The ban on 737MAX8 aircraft taking off and landing in the country’s airspace will begin at 14:00 on the 12th.
South Korea's Ministry of Transport: On March 11, 2019, authorities stated that relevant authorities were conducting emergency safety inspections on Eastar Airlines 's two Boeing 737 MAX8 aircraft.
Australia's Civil Aviation Safety Agency: announced in March 2019 that in view of Ethiopian Airlines Due to the crash of the company's passenger plane, the entry and exit of Boeing 737MAX passenger planes into the country will be suspended.
In addition, Mongolian Airlines , Air Morocco, Aeromexico , South Africa's Com Air, and Brazil's Gol Airlines have also previously announced the suspension of Boeing 737MAX 8 flights.
