Helicopter man

By Edwin Brit Wyckoff

Subjects: Juvenile literature, Biography, Helicopters, Sikorsky, Igor Ivan,, Aeronautical engineers, Aeronautics, Engineers, juvenile literature, Aeronautics, juvenile literature, Helicopters, juvenile literature, History, Sikorsky, igor ivanovich, 1889-1972

Description: "Read about Igor Sikorsky's life, and how he built the first successful helicopter"--Provided by publisher.