ANN's Daily Aero-Term (02.23.21): Simplified Directional Facility (SDF) | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

 Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-09.29.25

AirborneNextGen-
09.30.25

Airborne-Unlimited-10.01.25

Airborne-Affordable Flyers-10.02.25

AirborneUnlimited-10.03.25

Tue, Feb 23, 2021

ANN's Daily Aero-Term (02.23.21): Simplified Directional Facility (SDF)

Aero-Terms!

Aero-Terms are designed to be a daily reminder of the terms, names, acronyms and explanations of the unique language that populates the aviation world. Aerospace, sport aviation, fixed wing, helo, you name it... it's all fair game.

Aero-Terms should serve as a quick but intriguing reminder of the terms you may use every day, or an introduction to an aspects of the Aero-World you may not yet be familiar with. ANN also encourages readers to go beyond the FMI link, and further research any intriguing terms.

Suggestions for future Aero-Terms are ALWAYS welcome, as are additions or discussion of the explanations given for each Aero-Term.

Simplified Directional Facility (SDF)

A NAVAID used for nonprecision instrument approaches. The final approach course is similar to that of an ILS localizer except that the SDF course may be offset from the runway, generally not more than 3 degrees, and the course may be wider than the localizer, resulting in a lower degree of accuracy.

FMI: www.faa.gov

Advertisement

More News

Airborne 09.29.25: Amelia Declassified, AV-30 Upgrades, Who's Hiring Pilots?

Also: Dream Chaser, Newark Airport, Drone Operator Sentenced, Airbus H225 Buy US President Donald Trump recently vowed to declassify all files related to legendary aviator Amelia E>[...]

ANN's Daily Aero-Term (10.03.25): Receiver Autonomous Integrity Monitoring

Receiver Autonomous Integrity Monitoring (RAIM) A technique whereby a civil GNSS receiver/processor determines the integrity of the GNSS navigation signals without reference to sen>[...]

NTSB Prelim: Lawson Thomas O Lancair Super ES

Airplane Continued To Bank To The Right And “Went Straight Down Into The Hillside At What Sounded Like Full Engine Power.” On September 12, 2025, about 1421 Pacific day>[...]

ANN FAQ: Follow Us On Instagram!

Get The Latest in Aviation News NOW on Instagram Are you on Instagram yet? It's been around for a few years, quietly picking up traction mostly thanks to everybody's new obsession >[...]

Classic Aero-TV: ICAS Perspectives - Advice for New Air Show Performers

From 2009 (YouTube Edition): Leading Air Show Performers Give Their Best Advice for Newcomers On December 6th through December 9th, the Paris Las Vegas Hotel hosted over 1,500 air >[...]

blog comments powered by Disqus



Change Display

Headlines Only | Headlines w/ Teasers | View Everything

Advertisement

Top Videos

Airborne 10.03.25: Phantom 3500 Buy, ‘Chinese Military Company’, NOTAM Redesign

Airborne Affordable Flyers 10.02.25: MOSAIC Start Date, AFE25 Tickets, ePulitzer

Airborne 10.01.25: New Gulfstream G300, Affordable Flying Expo Tkts, Starship 11

See All

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC