The Sergeant and the Tiger Moth (1974)

Original title: Die sersant en die Tiger Moth

A young man and his girlfriend rebuild an old Tiger Moth with almost no money and parts they battle to find. Her father is totally set against this idea and does not like the boyfriend who claims to be a pilot but does not even have a proper pilot's license. To add to the intrigue, the girlfriend sells her prize white horse to get money for the parts which angers her father even more....