Welcome Guest. Sign in or Signup

1 Answers

CONTINUOUS DESCENT FIANL APPROACH(CDFA)

Asked by: 2959 views Flight Instructor

I am a flight instructor in JAPAN. We start to train CDFA on non-precision approach, though our aircraft does not have VNAV guidance, because most of AIP charts of Japan is designed for CDFA approach. As FAA states on Ac120-108, operators should instruct their pilots to initiate the go around at an altitude above the MDA, normally MDA plus 100ft, called Derived Decision altitude. Since we have to decide whether we are going to land or go around above MDA, this means we have to make decision at a little bit far away from threshold, we suppose the whether minima should be raised. However, CDFA from EU-OPS1  describes as follows, All non-presicion approaches shall be flown using the continuous descent final approach technique unless otherwise approved by the authority for a particular approach to a particular runway. When calculating the minima in accordance with Appendix 1, the operator shall ensure that the applicable minimum RVR is increased by 200 metres for CAT A/B aeroplanes and by 400m for CAT C/D aeroplanes for approaches not flown using the CDFA techinique, ・・・ This means, on the contrary, by using CDFA technique, the minima remains same value, and if not, the minima should be raised. I am wondering how they decide the concept of determining wx minima. Please tell us if you have any information. Thank you.    

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.

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.