Becouse tha wave is always maving away from the aircraft, the pilot never hears the sound of sonic boom, even when crossing the sound barrier. Yaw, pitch and roll Thrust moves an aircraft through the air, and there are three axes of movement that an aircraft can travel through. The movements along the three axes are called yaw, pitch and roll. Yaw is movement around the vertical axis of an aircraft. You experience it as the nose moving left and right from your point of refence as pilot.
Pitch is movement around the horizontal aaxis.
You experience it as the nose moving up and down. Roll is movement along the long axis of the aircraft. You experience a roll by seeing the horizont rotate in front of you. These points of reference are on the point of view of the pilot, regardless of his orientation in real space. As you crank around on the stick, you will be pulling your aircraft through all three axes in various combinations.