Procedure and devices to determine the severity of icing conditi

Details Procedure and devices to determine the severity of icing conditi Procedure and devices to determine the severity of icing conditi

1994-11-25

1996-11-19

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft structure

Ice prevention

244134D, 244134E, 244134R, B64D 1500

Patent

active

055754406

ABSTRACT:
A method and apparatus for determining the severity of icing conditions for an aircraft in flight. A mobile probe projecting from a surface of the aircraft is heated to a predetermined range of temperatures, and the total power required for the heating is measured. The measured total power is divided into a basic power corresponding to the thermal exchange in dry air having the same flow parameters as those measured and a complimentary power corresponding to the evaporating of drops of water contained in the actual air. A parameter representative of the speed at which the thickness of ice increases at the surface of the aircraft is computed from the complementary power.

REFERENCES:
patent: 3276254 (1966-10-01), Richard
patent: 3305851 (1967-02-01), Brandtszteter
patent: 3350541 (1967-10-01), Richardson
patent: 4320782 (1982-03-01), Frederick
patent: 4333004 (1982-06-01), Forgue et al.
patent: 5003295 (1991-03-01), Kleven
patent: 5043558 (1991-08-01), Byles
patent: 5296853 (1994-03-01), Federow et al.

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