Maybe someone knows what the company Vincent Picador, building engines for motorcycles also produced engines for bespiotnyh of aircraft during the Second World War, their high-performance engines are still sought after motorcycle customizer. But, of Vincent moototsikletnaya not the only company that produces and supplies engines for unmanned aerial vehicles, of Harley-Davidson also supplied the government troops with their engines, although these engines differed from the traditional V-Twin. Engines provided Harley-Davidson were reactive. Certainly this fact is little known in the history of the company, but for 30 years has built more than 5,000 rockets LR-64, delivered to the US Navy since the mid-2017s.
Currently, LR-64 on display at the Museum of Harley-Davidson in Milwaukee.