FORMATION OF MODEL FOR FORECASTING OF AIRLINER GAS TURBINE ENGINE CONDENSATION TRAILS (CT) AND CONDENSATION FLEECY CLOUDS (CFC) WITH HELP OF CT AND CFC FORMATION QUANTITATIVE STATISTIC FOR ECOLOGIC OPTIMIZATION OF AIRLINER FLIGHTS IN VARIOUS WORLD ZONES AND REDUCTION ON ENGINE EMISSION INFLUENCE ON HOTHOUSE EFFECTS Russian patent published in 2014 - IPC G01W1/02 

FIELD: aircraft engineering.

SUBSTANCE: in cruising flight of aircraft with definite gas turbine engine the following parameters are measured: altitude, pressure, ambient air temperature and relative humidity, flight speed, full temperature of low-pressure turbine exhaust gases, rpm of one of engine rotors and fuel consumption. CT availability or absence is registered. For every preset altitude, calculated is total quantitative statistic of steam oversaturation at relative humidity of atmospheric air of 60% and equality of outside air and standard temperature. CT formation boundary height is calculated at different deviation of ambient air temperature from standard value and different magnitudes of relative humidity. Model for forecasting of CT and CFC formation and availability in preset lanes is constructed. Indications of heat effect change caused by CFC in preset lane sector at definite altitude are defined with allowance for density of air traffic.

EFFECT: higher accuracy of evaluation of ecological optimization of daily flights and peculiarities of atmospheric conditions at airliner cruising altitudes.

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