Welcome Guest. Sign in or Signup

3 Answers

Landing pattern

Asked by: 2389 views ,
Student Pilot

What are advantages/ disadvantages of lowering flaps all at once or in increments?

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.

3 Answers

  1. Kris Kortokrax on Apr 29, 2012

    Best to follow the guidance in the POH for the plane you are flying.  One typically does not lower full flaps until assured of landing.
    Why the question?  Is your instructor telling you something other than POH procedure?

    +2 Votes Thumb up 2 Votes Thumb down 0 Votes

  2. Bob Watson on Apr 30, 2012

    I read in Kirshner, IIRC, who suggested setting the plane up for landing configuration right from the start on  downwind. It seemed kinda strange when I read it, but it and it simplifies the rest of the approach. You just have one airspeed to maintain and no more configuration changes to accomodate for the rest of the approach. For a new primary student, I can see how this method could make it easier to get the basics down to begin with.

    0 Votes Thumb up 0 Votes Thumb down 0 Votes

  3. Nathan Parker on Apr 30, 2012

    “What are advantages/ disadvantages of lowering flaps all at once or in increments?”
    The main drawbacks to an “all at once” deployment are a sudden change in pitch and a sudden deceleration.  While it’s possible to control for these things, it’s a lot harder than when you make configuration changes gradually.  It can be unpleasant for the passengers, too.  Depending on when you choose to make the deployment, it can destabilize the approach and make it less likely that you will be able to maintain the desired flight path and airspeed.
    In more sophisticated airplanes, the various flap settings might have different maximum airspeeds, so you don’t have the latitude to dump them all in at once, unless you wait for the very lowest airspeed.

    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.