modified cabin with three seats, prototype first flown 3 June 1959. One prototype and 29 production aircraft (including two originally to be Kl 107Bs). Kl 107D Original designation of a four-seat variant that became the Bolkow Bo 207. Specifications (Kl 107B) See also Notes References 1940s German civil utility aircraft Klemm aircraft Single-engined tractor aircraft Low-wing aircraft Aircraft first flown in 1940