1. Air Board (1918) Manual of Clerget Aero-Motors and their Installation in Various Aircraft. Air Board Issue No 243.
2. Air Ministry, Meteorological Office (1960) Handbook of Aviation Meteorology. HMSO, London.
3. Civil Aviation Authority (1987) General Aviation Accident Review 1987 (CAP 543). See also other CAA and ICAO surveys.
4. David, V.W., Hughes, J.R. and Reece, D. (1956) Some lubrication problems of aviation gas turbines. J. Inst. Pet.
42(395) 330.
5. Gunston, B. (1986) World Encyclopaedia of Aero Engines. Guild Publishing, London.