This publication documents the 35 year history of fuel thermal stability problems and remedies in jet aircraft. Specifically, Monograph 1:

• Discusses the chemical and physical aspects that are critical factors in thermal stability

• Describes the great variety of test devices — from small scale fuel specification testers to large scale engineering simulators —that have been used in defining thermal stability

• Presents information on the thermal environment in jet aircraft and engines, the role of oxidation and trace metals in insolubles formation, the use of additives to modify stability behavior, and the possible characteristics of future fuels.

Monograph 1 is unique in that it presents a comprehensive and integrated approach to thermal stability, addressing contradictions in experimental data and resolving conflicting results where possible.