Dennis Parks is Curator Emeritus of Seattle’s Museum of Flight.
After the end of World War I, surplus warplanes were dumped on the market at a fraction of their original cost, leaving manufacturers with little demand for new aircraft. Without a doubt this availability of cheap aircraft hindered the development of new aircraft in the U.S., as surplus aircraft, many still in shipping crates, were sold for as little as a couple of hundred dollars.
In fact, the post-war market looked so good that Curtiss bought back more than 1,600 JN-4 Jennies and 4,608 OX-5 engines. The vast popularity of the war-surplus Jenny led to its being the second most registered aircraft design in the United States before 1940.
However, the corollary to the story is that the stocks of war surplus Curtiss OX-5 engines powered the growth in general aviation for a decade. [Read more…]