triple7
Well-Known Member
Anyone know the siginificance of the rings around the airport that are labled feeder facilities and enroute facilities? check out this approach plate...they are the dotted line circles.
ils 19r iad
ils 19r iad
ILS QUESTION
- Thread starter triple7
- Start date
flyover
New Member
Ha I got one. If you understand it after reading this please PM me and explain it to me.:
Plan View. This is a bird's eye view of the entire procedure. Information pertaining to the initial approach segment, including procedure turn, minimum safe altitude for each sector, courses prescribed for the final approach segment and obstructions, is portrayed in this section. Navigation and communication frequencies are also listed on the plan view.
1. Format. Normally, all information within the plan view is shown to scale. Data shown within the 10 NM distance circle is always shown to scale. The dashed circles, called concentric rings, are used when all information necessary to the procedure will not fit to scale within the limits of the plan view area. These circles then serve as a means to systematically arrange this information in their relative position outside and beyond the 10 NM distance circle. These concentric rings are labeled Enroute Facilities and Feeder Facilities.
2. Enroute Facilities Ring. Radio aids to navigation, fixes and intersections that are part of the Enroute Low Altitude Airway structure and used in the approach procedure are shown in their relative position on this Enroute Facilities Ring.
3. Feeder Facilities Ring. Radio aids to navigation, fixes and intersections used by the air traffic controller to direct aircraft to intervening facilites/fixes between the enroute structure and the initial approach fix are shown in their relative position on this Feeder Facilities Ring.
Plan View. This is a bird's eye view of the entire procedure. Information pertaining to the initial approach segment, including procedure turn, minimum safe altitude for each sector, courses prescribed for the final approach segment and obstructions, is portrayed in this section. Navigation and communication frequencies are also listed on the plan view.
1. Format. Normally, all information within the plan view is shown to scale. Data shown within the 10 NM distance circle is always shown to scale. The dashed circles, called concentric rings, are used when all information necessary to the procedure will not fit to scale within the limits of the plan view area. These circles then serve as a means to systematically arrange this information in their relative position outside and beyond the 10 NM distance circle. These concentric rings are labeled Enroute Facilities and Feeder Facilities.
2. Enroute Facilities Ring. Radio aids to navigation, fixes and intersections that are part of the Enroute Low Altitude Airway structure and used in the approach procedure are shown in their relative position on this Enroute Facilities Ring.
3. Feeder Facilities Ring. Radio aids to navigation, fixes and intersections used by the air traffic controller to direct aircraft to intervening facilites/fixes between the enroute structure and the initial approach fix are shown in their relative position on this Feeder Facilities Ring.
darrenf
resident denizen
(1) Format. Normally, all information within the plan view is shown to scale. Data shown within the 10 NM distance circle (inner ring) is always shown to scale. The dashed circles, called concentric rings, are used when all information necessary to the procedure can not fit to scale within the limits of the plan view area. These circles then serve as a means to systematically arrange this information in their relative position outside and beyond the 10 NM distance circle. These concentric rings are labeled Enroute Facilities and Feeder Facilities and are normally centered on the approach facility.
(2) Enroute Facilities Ring. Radio aids to navigation, fixes and intersections that are part of the Enroute Low Altitude Airway structure and used in the approach procedure are shown in their relative position on this Enroute Facilities Ring.
(3) Feeder Facilities Rings. Radio aids to navigation, fixes and intersections used by the air traffic controller to direct aircraft to intervening facilities/fixes between the enroute structure and the initial approach fix are shown in their relative position on this Feeder Facilities Ring. When the initial approach fix is part of the enroute structure, there may be no need to designate additional routes for aircraft to proceed to the initial approach fix (IAF). However, in some cases it is necessary to designate feeder routes from the enroute structure to the initial approach fix. Only those feeder routes which provide an operational advantage shall be established and published. These should coincide with the local air traffic flow. The length of the feeder route shall not exceed the operational service volume of the facilities which provide navigational guidance unless additional frequency protection is provided. Enroute airway obstacle clearance criteria shall apply to feeder routes. The minimum altitude established on feeder routes shall not be less than the altitude established at the IAF
(2) Enroute Facilities Ring. Radio aids to navigation, fixes and intersections that are part of the Enroute Low Altitude Airway structure and used in the approach procedure are shown in their relative position on this Enroute Facilities Ring.
(3) Feeder Facilities Rings. Radio aids to navigation, fixes and intersections used by the air traffic controller to direct aircraft to intervening facilities/fixes between the enroute structure and the initial approach fix are shown in their relative position on this Feeder Facilities Ring. When the initial approach fix is part of the enroute structure, there may be no need to designate additional routes for aircraft to proceed to the initial approach fix (IAF). However, in some cases it is necessary to designate feeder routes from the enroute structure to the initial approach fix. Only those feeder routes which provide an operational advantage shall be established and published. These should coincide with the local air traffic flow. The length of the feeder route shall not exceed the operational service volume of the facilities which provide navigational guidance unless additional frequency protection is provided. Enroute airway obstacle clearance criteria shall apply to feeder routes. The minimum altitude established on feeder routes shall not be less than the altitude established at the IAF