The Veljekset Karhumäki O/Y company had been formed in 1924 and concerned itself with licence manufacturing. In 1948 the company designed and built a prototype of the Karhu 48, a high-wing four-seat monoplane of mixed construction, with a fabric-covered steel-tube fuselage and fabric-covered wooden wings.
The company, founded by the Karhumäki brothers in 1924, focused on producing licensed aircraft. In 1948, they created a prototype of the Karhu 48, a four-seat monoplane with a unique design, featuring a steel-tube fuselage and fabric-covered wooden wings.