The incredible history of the Boeing 737 - the best selling airliner of all time
In 1964, Boeing began design work on a 50-60 seat, narrow-body airliner designed for trips between 50 and 1,000 miles in length. It would also be roughly half the size Boeing's smallest jet at the time, the 727.
At the time, Boeing was best known for it larger jets like the 707 and...
... The eight-engine B-52 bomber.
As a result, the plane that launched in January 1967 became known as the Baby Boeing. The original 737 is what we would today call a regional jet.
To save time, Boeing allowed the 737 to share the same upper half of the fuselage as the larger 707 and 727. As a result, the cabin of the Baby Boeing is the same width as the company's larger jets. This means six-abreast seating.
Something the 737 retains to this day.
This gave the 737 an advantage over its rival, the Douglas DC-9, which boasted five-seats per row.
The 737's original customers include launch customer Lufthansa, United, and Malaysia-Singapore Airlines, the predecessor to today's Malaysia Airlines and Singapore Airlines.
In December 1967, Boeing delivered the first production 737-100 to Lufthansa. The plane eventually earned the nickname Bobby, after a character in a children's book the airline would hand out to young passengers.
The original Boeing 737 prototype never entered commercial service and instead became a NASA test platform for roughly two decades. The plane can now be found at the Museum of Flight in Seattle.
The 737-200 is based on the Dash 100, but with a slightly longer fuselage. The first Dash 200 was delivered to launch customer United Airlines a day after Lufthansa received its first 737-100. The 737-100/200 was powered by Pratt & Whitney's venerable JT8D low-bypass turbofan engines.
The Boeing 737-200 remained in production until 1988.
In 1981, Boeing launched the second generation 737 Classic. The new planes would come with new CFM56 high bypass turbofan engines that were quieter, more efficient, and more powerful than the units found on the Dash 100/200.
The 737 Classic comes in 3 variants. The 126-seat 737-300, the 147-seat 737-400, and the 110-seat 737-500. The Dash 300 proved to be the most popular fo the three with more than 1000 sold.
In the mid-1980s, the marketplace for narrow-body airliners experienced a seismic shift with the introduction of the Airbus A320-family. The European Airbus finally gave the 737 a true rival.
In reaction to this threat, Boeing launched the third generation 737 in 1993 called the NG or Next Generation. The Boeing 737-600,-700,-800,-900, and -900ER would become known as the Next Generation or NG.
The 149 seat 737-700 launched first in November 1993.
It was followed by the 189 seat 737-800 in September 1994.
That was followed by the 132 seat 737-600 and...
... The 220 seat 737-900/900ER.
The 737 has proven itself to be popular around the world from American Airlines...
... To Lion Air in Indonesia...
... To Gol in Brazil.
But there's no Boeing 737 customer more important than Southwest Airlines. The Dallas, Texas-based low-cost carrier operates a fleet of more than 700 737s.
Irish ultra-low-cost carrier Ryanair is also a major 737 operator with a fleet of more than 400 planes.
Over the years, the Boeing 737's affordability and reliability have made it a popular option for start up airlines.
Its versatility has also seen it go into military service as both a transport and ...
.... As tactical aircraft like the P8 Poseidon submarine hunter.
There's even a freighter version.
In 2011, Boeing launched the fourth generation 737 called the MAX. The newest 737 comes with state-of-the-art CFM LEAP 1B turbofan engines, new wings, and avionics.
It comes in four different variants. The lineup ranges from the 172-seat MAX 7 to...
... The 230-seat MAX 10. With more than 4,300 orders so far, the 737 MAX is the fastest selling Boeing airplane of all time.
All of this means Boeing's Renton, Washington plant where the 737 is assembled will remain a really busy place for the foreseeable future.
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