ISBN: | 978-5-5115-8950-3 |
High Quality Content by WIKIPEDIA articles! NVI F.K.31 was a Dutch designed, two seat reconnaissance-fighter, which was developed in the 1920s by Frederick Koolhoven. The aircraft was equipped with an enclosed cockpit and single-strut landing gear. Only a small number of aircraft were produced. The aircraft saw some service in the Finnish Air Force.