Military aircraft flying at critical speeds are placing electronic equipments in environments which are beyond the temperature operat¬ing limits of the electronic components. Also, the low density air envi¬ronment at the high altitudes and critical speeds at which these aircraft fly is inadequate for cooling the electronic equipment to within satis¬factory component operating temperatures.nThe technique of cooling, described herein, is based on the princi¬ple of simultaneous heat and mass transfer. The technique permits the use of low density high temperature air with a small amount of liquid as the cooling medium for electronic equipment. This cooling system will operate satisfactorily even though the temperature of the air is above the allowable temperature limits of the electronic components being cooled. A much smaller quantity of air is required than that which would be required for cooling with ram air alone.
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