The Receiver is the noise-sensitive land use exposed to sound from the source. The FRA horn noise model incorporates all three elements of the noise analysis as they relate to train horns near grade crossings.
I think the most significant part is that it changes a lot. The Air Force is the youngest service with the least clearly defined role. Right now it's aim high and/or fly fight win.. I believe for a moment it was above all but they quickly swatted that good idea fairy due to insufficient Joint-ness.
Roll Call. Chief Master Sergeant of the Air Force. Chief Master Sergeant of the Air Force Kaleth O. Wright represents the highest enlisted level of leadership, and as such, provides direction for the enlisted force and represents their interests, as appropriate, to the American public, and to those in all levels of government.