Elements of Propeller and Helicopter Aerodynamics Daniel O. Dommasch
1953. First Edition. 178 pages. No dust jacket. This is an ex-Library book. Blue cloth. Expected library inserts, stamps and inscriptions. Contains black and white illustrations throughout. Pages remain bright and clear with minimal tanning and foxing. Thumb-marking present. Light creasing to gutter. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Soft crushing to spine ends. Visible tanning to spine and edges. Black marks to front and rear boards. Textblock is shaky.