The Development of Reciprocating Engine Installation Data for General Aviation Aircraft

The need for adequate reciprocating-engine installation data is discussed. Techniques for obtaining reliable installation data and methods for their application to assure efficient, minimum drag installation design is presented. Aircraft performance gains to be expected from improved engine cooling characteristics are included.

The testing was performed on a Lycoming TIGO-541-GIAD, a 6-cyl, horizontally opposed, aftercooled engine rated at 450 bhp with operational capability beyond 30,000 ft.