"A method is described by which the total temperature of the gases at the combustion-chamber outlet of a ram-jet engine may be determined from the loss in total pressure measured across the combustion chamber. A working chart is presented by means of which the ratio of the total temperature of the gases at the combustion-chamber outlet to the total temperature of the gases at the combustion-chamber inlet may be determined from the measured loss of total pressure across the combustion chamber and the known values of air flow, total pressure, and total temperature at the combustion-chamber inlet. Values of total-temperature ratio across the combustion chamber of a 20-inch ram jet were obtained in the Cleveland altitude wind tunnel over a range of pressure altitudes from 6000 to 15,000 feet" (p. 1).

Report presenting tests made on an XCG-7 all-wood glider on a PT-19A training airplane with a tubular metal fuselage and wooden wings by passing electrical surges simulating lightning discharges through the aircraft and measuring the voltage induced between various points which might be touched by an occupant. While certain recommendations for electrical protection are provided, the personnel in a metal fuselage aircraft are reasonably well protected from induced voltage shock without other protection.