Helicopters /
Ole Steen Hansen.
- New York : Crabtree Pub. Co., 2004, c2003.
- 32 p. : col. ill. ; 28 cm.
- The story of flight .
- Hansen, Ole Steen, 1957- Story of flight. .
Includes index.
Lift and torque -- The first helicopters -- Combat rescue -- The helicopter war -- Multi-role helicopters -- Over the battlefield -- COmbat helicopters -- Over the sea -- Over the land -- Heavy lifters -- Small helicopters -- Into the future -- Spotters' guide.