This paper plane is a Czech Airlines Boeing 737-400, this aircraft paper model is designed by Stefino. The scale of the papercraft is 1:250. The Boeing 737-400 was launched in 1985 as a stretched 737-300, primarily for use by charter airlines. Piedmont Airlines was the launch customer with an order for 25 aircraft in 1986. The first 400 entered service in 1988 with Piedmont. The 486th and last delivery of the -400 occurred on February 25, 2000 to CSA Czech Airlines.
The 737-400F was not a model delivered by Boeing but a converted 737-400 to an all cargo aircraft. Alaska Airlines was the first to convert one of its -400s from regular service to an aircraft with the ability to handle 10 pallets. The airline has also converted five more into fixed "combi" aircraft for half passenger and freight. These 737-400 Combi aircraft are now in service.
The Boeing 737 is a short- to medium-range twin-engine narrow-body jet airliner. Originally developed as a shorter, lower-cost twin-engine airliner derived from Boeing's 707 and 727, the 737 has developed into a family of nine passenger models with a capacity of 85 to 215 passengers. The 737 is Boeing's only narrow-body airliner in production, with the -600, -700, -800, and −900ER variants currently being built. A re-engined and redesigned version, the 737 MAX, is set to debut in 2017.
Originally envisioned in 1964, the initial 737-100 flew in 1967 and entered airline service in February 1968. Next the lengthened 737-200 entered service in April 1968. In the 1980s Boeing launched the -300, -400, and -500 models, subsequently referred to as the Boeing 737 Classic series. The 737 Classics added capacity and incorporated CFM56 turbofan engines along with wing improvements. In the 1990s Boeing introduced the 737 Next Generation with multiple changes including a redesigned wing, upgraded cockpit, and new interior. The 737 Next Generation comprises the four -600, -700, -800, and -900ER models, ranging from 102 ft (31.09 m) to 138 ft (42.06 m) in length. Boeing Business Jet versions of the 737 Next Generation are also produced.
The 737 series is the best-selling jet airliner in the history of aviation. The 737 has been continuously manufactured by Boeing since 1967 with 7,251 aircraft delivered and 2,790 orders yet to be fulfilled as of July 2012. 737 assembly is centered at the Boeing Renton Factory in Renton, Washington. Many 737s serve markets previously filled by 707, 727, 757, DC-9, and MD-80/MD-90 airliners, and the aircraft currently competes primarily with the Airbus A320 family. There are, on average, 1,250 Boeing 737s airborne at any given time, with two departing or landing somewhere every five seconds.
You can download the airplane paper craft here: Czech Airlines Boeing 737-400 Free Airplane Paper Model Download