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Simplified Directional Facility

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  • 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… …   Wikipedia

  • 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