Sound radiation from aircraft during takeoff

The problem of sound radiation from airplane during takeoff in wind conditions is considered. The aircraft engines are modeling as point sources moving in air with constant velocity under an angle to the plane interface of acoustic and solid elastic half-spaces. The solution of problem is obtained using the integral Fourier-transforms over time and space coordinates, and the stationary phase method. The numerical analysis of spatial-time distributions of sound pressure and sound pressure level is carried out for takeoff case of the twin-engine aircraft Boeing 777-300ER.