Styrofoam, Fiberglass, and Metal
Experts on the Long-EZ say the plane isn’t made by any single manufacturer. Instead, people buy plans and build the plane themselves – out of Styrofoam, fiberglass, and metal. With its rear propeller and front wing, it can cruise at nearly 200 mph.
Long EZ aircraft similar to what Denver was flying. Source: historythings.com
Experts assume that Denver bought the plane on the used-plane market. It was later discovered that Denver’s plane was designed by Elbert “Burt” Rutan, a man best known for the long-winged Voyager, which was the first airplane to fly around the world without refueling.