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2 f SanfCarlosfAirportfandfEnvironsf <br /> rt 9.A. - Page 29 <br /> Global positioning systems (GPS) are another navigational aid that pilots operating to and from <br /> San Carlos Airport can utilize. GPS is used extensively for a wide variety of civilian uses, <br /> including civil aircraft navigation.Furthermore, GPS supports two non-precision area navigation <br /> (RNAV) GPS approaches to Runway 30 at the airport. These approaches each provide a straight- <br /> in procedure for aircraft landing on Runway 30. The RNAV GPS Z approach allows for cloud <br /> ceiling minimums as low as 580 feet above ground level(AGL) and visibility minimums down to <br /> one mile,while the RNAV GPS Y approach provides for cloud ceilings down to 1,260 feet AGL <br /> and visibility minimums as low as 1.25 miles. <br /> Visual approach aids give an indication to pilots of being above,below, or on the designated <br /> descent path to the runway. Two-box visual approach slope indicators(VASI-2)are available on <br /> each end of Runway 12-30. Runway end identification lights(REIL)provide rapid and positive <br /> identification of the approach ends of a runway and consist of two synchronized flashing lights, <br /> located laterally on each side of the runway end, facing the approaching aircraft. A REIL system <br /> has been installed on both ends of Runway 12-30. <br /> The airport's rotating beacon is located atop a tower adjacent to the terminal building on the <br /> northeast side of the airport. A segmented circle and lighted wind cone are located approximately <br /> 600 feet east of Runway 12-30 near midfield. The airport is also equipped with an automated <br /> weather observation system(AWOS-III/P)that provides pilots with current weather information. <br /> This system is located approximately 300 feet southeast of the segmented circle. <br /> 2.2.2 Landside Facilities <br /> Landside facilities at San Carlos Airport include the terminal building, aircraft storage and <br /> maintenance hangars, aircraft parking aprons,the airport traffic control tower(ATCT), and <br /> support facilities including a fuel storage farm, an aircraft wash rack, and pump stations. The <br /> locations of these facilities are shown on Exhibits 2-2 and 2-3. <br /> 2.3AirspaceNandv4irvTrafficleontroly <br /> The Federal Aviation Administration(FAA)is the agency responsible for the control and use of <br /> navigable airspace within the United States. It has established an airspace system that is designed <br /> to protect persons and property on the ground and to establish a safe operating environment for <br /> civil, commercial, and military aviation. <br /> 2.3.1 Airspace Structure <br /> Airspace in the United States is classified as controlled,uncontrolled, or special use. Controlled <br /> airspace encompasses those areas where there are specific certification, communication, and <br /> navigation equipment requirements that pilots and aircraft must meet to operate in that airspace. <br /> Airspace is classified as Class A,B, C,D,E,or G, or special use airspace. The following <br /> SanfCarlosfAirportV 2-8 ESAfAirportsf/130753f <br /> ALUCPf W hitef Pape/ Junef2014f <br />