A major cause of engine failure in combat and tactical vehicles is overheating due to deterioration of cooling system performance with time and use. This proposal describes the exploratory development of a cooling system degradation indicator. The efficiency of a cooling system will be assessed by comparing the degree of cooling presently being achieved with a standard value that is indicative of a cooling system operating at original performance specifications. First omega group, inc. Proposes to 1) design such a system using solid state electronics for temperature sensing and signal processing; 2) build prototypes of the system; 3) evaluate same in the laboratory for performance, reliability and compliance with the solicitation. Since this device will alert operators to a failing cooling system before damage occures, savings can be expected in reduced maintenance costs, improved engine efficiency and vehicle utilization, and better military readiness. First omega group, inc. Believes this indicator can be further developed into a marketable product.