Welcome Guest. Sign in or Signup

2 Answers

DME or RADAR REQUIRED – can GPS substitute? Where is this stated?

Asked by: 2742 views , ,
Airspace

Can the use of a TAA override the requirement for "DME or RADAR REQUIRED"  on some approaches. I am using a 430W driving a G500 glass cockpit system. We have no DME in the airplane, and GPS only gives distances "T0" not "FROM." However, in pulling up any approach on the 430W, all of the waypoints are defined in space, and if necessary to determine a "FROM" distance in lieu of DME, a little subtraction works. 

I cannot find anywhere that says I can fly a "DME or RADAR REQUIRED" approach using glass instead of DME.

Ace Any FAA Written Test!
Actual FAA Questions / Free Lifetime Updates
The best explanations in the business
Fast, efficient study.
Pass Your Checkride With Confidence!
FAA Practical Test prep that reflects actual checkrides.
Any checkride: Airplane, Helicopter, Glider, etc.
Written and maintained by actual pilot examiners and master CFIs.
The World's Most Trusted eLogbook
Be Organized, Current, Professional, and Safe.
Highly customizable - for student pilots through pros.
Free Transition Service for users of other eLogs.
Our sincere thanks to pilots such as yourself who support AskACFI while helping themselves by using the awesome PC, Mac, iPhone/iPad, and Android aviation apps of our sponsors.

2 Answers



  1. Ron Klutts on May 18, 2018

    This Advisory Circular answers it.

    https://www.faa.gov/documentLibrary/media/Advisory_Circular/90-108.pdf

    -1 Votes Thumb up 0 Votes Thumb down 1 Votes



  2. Airknocker on May 18, 2018

    Thanks again, Ron.

    0 Votes Thumb up 0 Votes Thumb down 0 Votes


The following terms have been auto-detected the question above and any answers or discussion provided. Click on a term to see its definition from the Dauntless Aviation JargonBuster Glossary.

Answer Question

Our sincere thanks to all who contribute constructively to this forum in answering flight training questions. If you are a flight instructor or represent a flight school / FBO offering flight instruction, you are welcome to include links to your site and related contact information as it pertains to offering local flight instruction in a specific geographic area. Additionally, direct links to FAA and related official government sources of information are welcome. However we thank you for your understanding that links to other sites or text that may be construed as explicit or implicit advertising of other business, sites, or goods/services are not permitted even if such links nominally are relevant to the question asked.