Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Yakovlev Yak-16 (NATO reporting name Cork) was a Soviet light transport that first flew in 1947. Prototypes were built in both passenger and military cargo versions, but neither was put into production as the Antonov An-2 was felt to be more versatile. After the end of World War II the GVF (Grazdahnskovo Vozdushnogo Flota Civil Air Fleet) issued a requirement for a passenger aircraft to service low-volume destinations too small to justify a Lisunov Li-2. It wanted an aircraft capable of carrying ten passengers over a distance of 800 km (500 mi) at a cruising speed of 800 km/h (500 mph) that would be powered by a pair of 700-horsepower (520 kW) Shvetsov ASh-21 radial engines. The Yakovlev OKB was tasked to fulfill this requirement in February 1946 with the first prototype ready for State acceptance trials on 1 November 1946. This proved to be too optimistic considering the amount of work the OKB was already doing and this was delayed to August 1947.