Chief designer Martti Vainio, along with designers Torsti Verkkola, Arvo Ylinen at Valtion Lentokonetehdas were tasked with designing the new aircraft as well as a replacement wing made of wood instead of metal.
Martti Vainio, along with Torsti Verkkola and Arvo Ylinen from Valtion Lentokonetehdas, were tasked with designing a new aircraft and a wooden wing replacement for it.