Simplified Directional Facility

Simplified Directional Facility

Simplified Directional Facility or SDF is similar to a Localizer, although is not as precise. The SDF signal is fixed at either 6 or 12 degrees, as necessary maximum flyability and optimum course quality.

The SDF course may or may not be aligned with the runway because its antenna is sometimes offset from the runway centerline.

Usable off-course indications are limited to 35 degrees either side of the course centerline.

List of Current SDF Approaches in the United States

The following 14 SDF approaches in five states are currently published in the United States (currently only 10 are available):
* KDWU SDF RWY 10, Ashland Regional Airport, Ashland, KY
* KAAS SDF RWY 23, Taylor County Airport, Campbellsville, KY (SDF unmonitored 1700-0800)
* KGLW SDF RWY 07, Glasgow Municipal Airport, Glasgow, KY (SDF unmonitored 1600-0700)
* KAMN SDF RWY 09, Gratiot Community Airport, Alma, MI (currently out of service)
* KLBO SDF RWY 36, Floyd W. Jones Lebanon Airport, Lebanon, MO (Course width: 6.00 degrees, SDF/DME unmonitored)
* KPOF SDF RWY 36, Poplar Bluff Municipal Airport, Poplar Bluff, MO (Course width: 6.00 degrees)
* KMRC SDF RWY 24, Maury County Airport, Columbia/Mount Pleasant, TN (Course width: 6.00 degrees, currently out of service)
* KFYM SDF RWY 20, Fayetteville Municipal Airport. Fayetteville, TN (Course width: 6.00 degrees, SDF unmonitored 1700-0800)
* KMOR SDF RWY 05, Moore-Murrell Airport, Morristown, TN (SDF unmonitored 2100-0700)
* KSCX SDF RWY 23, Scott Municipal Airport, Oneida, TN (SDF unmonitored 1730-0830, currently out of service)
* KTHA SDF RWY 18, Tullahoma Regional Airport/William Northern Field. Tullahoma, TN (Course width: 6.00 degrees, SDF unmonitored 1800-0800 and at other times the airport is unattended, currently out of service)
* KMFI SDF RWY 34, Marshfield Municipal Airport, Marshfield, WI
* KSUE SDF RWY 02, Door County Cherryland Airport, Sturgeon Bay, WI (SDF unmonitored and unusable beyond 12 degrees right of course)
* KISW SDF RWY 02, Alexander Field South Wood County Airport, Wisconsin Rapids, WI, (Course width: 6.36 degrees, SDF unmonitored)

ee also

* Instrument approach
* Instrument landing system
* Localizer Type Directional Aid

References

* [http://www.faa.gov/ATpubs/AIM/index.htm Aeronautical Information Manual published annually by US Federal Aviation Administration]
* [http://naco.faa.gov/index.asp?xml=naco/online/d_tpp FAA/NACO Digital Terminal Procedures Publication (d-TPP)/Airport Diagrams]


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • simplified directional facility — A navigational aid (NAVAID) used for nonprecision instrument approaches. The final approach course is similar to that of an ILS (instrument landing system) localizer except that the SDF course may be offset from the runway, generally not more… …   Aviation dictionary

  • Localizer Type Directional Aid — is of a comparable accuracy and use to the Localizer, except that LDA is not aligned with the runway. If the alignment is not greater than 30 degrees, straight in approach minima may be published. Circling minima only are published when alignment …   Wikipedia

  • localizer-type directional aid — A NAVAID (navigational aid) used for nonprecision instrument approaches with utility and accuracy comparable to a localizer but which is not a part of a complete ILS (instrument landing system) and is not aligned with the runway. The LDA course… …   Aviation dictionary

  • Abkürzungen/Luftfahrt/S–Z — Dies ist der fünfte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K E; F; G; H; I; J; …   Deutsch Wikipedia

  • Saspo — Dies ist der fünfte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K …   Deutsch Wikipedia

  • Instrument approach — Terminal procedures for an ILS approach in the United States. (The disclaimers shown in red in the illustration do not appear on the original approach plate.) For aircraft operating under instrument flight rules (IFR), an instrument approach or… …   Wikipedia

  • Localizer — A localizer is one component of an Instrument Landing System (ILS). The localizer provides runway centerline guidance to aircraft. In some cases a localizer is at an angle to the runway usually due to obstructions around the airport. It is then… …   Wikipedia

  • SDF — aeronaut. abbr. Simplified Directional Facility comp. abbr. Ship Design File comp. abbr. Standard Data Format abbr. Screen Definition Facility abbr. Standard Data Format abbr. System Dialog Facility (BS2000) comp. abbr. Space Delimited File comp …   United dictionary of abbreviations and acronyms

  • nonprecision approach — A radar controlled approach or an approach flown by reference to navigational aids, in which electronic glide slope information is not available. Examples are VOR (very high frequency omnidirectional radio range), TACAN (tactical air navigation) …   Aviation dictionary

  • SDF — may refer to: * Scouts de France * Seattle Debate Foundation, a non profit urban debate league in Seattle, Washington * Seoul Digital Forum, a major international conference held annually in Seoul, Korea, addressing innovation in the digital… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”