The 195 model was also used by the United States Air Force, United States Army, and Army National Guard as a light transport and utility aircraft under the designations LC-126/U-20. The Cessna 190 and 195 were Cessna's only postwar radial-engined aircraft. The first prototype flew in 1945, after the end of World War II and both the 190 and 195 entered production in 1947. The 195 was the first Cessna airplane to be completely constructed of aluminum and features a cantilever wing, similar to the pre-war Cessna 165 from which it is derived. The wing differs from later Cessna light aircraft in that it has a straight taper from root chord to tip chord and no dihedral. The airfoil employed is a NACA 2412, the same as used on the later Cessna 150, 172 and 182. The 190/195 fuselage is large in comparison to other Cessna models because the 42" diameter radial engine had to be accommodated in the nose. There are two rows of seats: two individual seats in the first row, with a comfortable space between them and up to three passengers can be accommodated on a bench seat in the second row. The 190/195 has flat sprung-steel landing gear legs derived from Cessna's purchase of the rights to Steve Wittman's Big X. Many have been equipped with swiveling crosswind landing gear which allows landing with up to 15 degrees of crab. While the crosswind gear simplifies the actual landing, it makes the aircraft difficult to handle on the ground. The 195 is equipped with a retractable step that extends when the cabin door is opened, although some have been modified to make the step a fixed unit. The aircraft was expensive to purchase and operate for private use and Cessna therefore marketed them mainly as a business aircraft under the name "Businessliner". For more information on the design, operational history and nine variants, click here.