Those courses unhappy with the
AIR position are now believed to total nine and, according to one insider, they account for almost half the fixtures.
Given this relatively new organizational change and the major events that unfolded during the past year, this article seeks to (1) describe in detail the airpower C2 transition that occurred as a result of assuming the IJC DCOS AIR position in December 2011, and (2) present observations and lessons learned from our team's tenure in Afghanistan, especially with regard to airpower C2 and the AETF-A structure.
The IJC DCOS AIR position, the fourth role, has authority over the Kabul and Kandahar airfields, oversight of all conventional North Atlantic Treaty Organization (NATO) fixed- and rotary-wing assets in combined/joint operating area-Afghanistan, a robust planning staff of approximately 20 personnel (mixture of NATO and US), and several key positions on the IJC operations floor within the air operations control center.
The transition to State 1 occurs after the control signal for the dampers has been at the minimum outdoor air position for a time period equal to the state transition delay.
However, in this case, the mixing-box dampers are set at the minimum outdoor air position. Economizer logic is used to determine the transition to State 3.
where steady-state conditions are assumed for the control volume because the dampers are maintained in the minimum outdoor air position. Performing an energy balance on the control volume in Figure 6 gives
In State 3, the cooling coil valve is controlled to maintain the supply air temperature at set-point and the mixing-box dampers are at the 100% outdoor air position. Although there should be no recirculation flow for State 3, the control volume in Figure 6 and the associated analysis can be applied and Equation 25 adapted to yield the limiting case where the recirculation damper is closed.
