Skip to main content
 

14 CFR 25.445 - Auxiliary aerodynamic surfaces.

There are 36 Updates appearing in the Federal Register for 14 CFR 25. Select the tab below to view, or View eCFR (GPOAccess)
§ 25.445
Auxiliary aerodynamic surfaces.
(a) When significant, the aerodynamic influence between auxiliary aerodynamic surfaces, such as outboard fins and winglets, and their supporting aerodynamic surfaces, must be taken into account for all loading conditions including pitch, roll, and yaw maneuvers, and gusts as specified in § 25.341(a) acting at any orientation at right angles to the flight path.
(b) To provide for unsymmetrical loading when outboard fins extend above and below the horizontal surface, the critical vertical surface loading (load per unit area) determined under § 25.391 must also be applied as follows:
(1) 100 percent to the area of the vertical surfaces above (or below) the horizontal surface.
(2) 80 percent to the area below (or above) the horizontal surface.
[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-86, 61 FR 5222, Feb. 9, 1996]

Title 14 published on 2012-01-01

The following are only the Rules published in the Federal Register after the published date of Title 14.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2013-04-09; vol. 78 # 68 - Tuesday, April 9, 2013
    1. 78 FR 21037 - Special Conditions: Airbus Model A330-200 Airplanes; Bulk Cargo Lower Deck Crew Rest Compartments
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Final special condition; request for comments.
      The effective date of these special conditions is April 3, 2013. We must receive your comments by May 24, 2013.
      14 CFR Part 25

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
USC : Title 49 - TRANSPORTATION

§ 106 - Federal Aviation Administration

§ 40113 - Administrative

§ 44701 - General requirements

§ 44702 - Issuance of certificates

§ 44704 - Type certificates, production certificates, airworthiness certificates, and design organization certificates

Title 14 published on 2012-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 14 CFR 25 after this date.

  • 2013-04-09; vol. 78 # 68 - Tuesday, April 9, 2013
    1. 78 FR 21037 - Special Conditions: Airbus Model A330-200 Airplanes; Bulk Cargo Lower Deck Crew Rest Compartments
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Final special condition; request for comments.
      The effective date of these special conditions is April 3, 2013. We must receive your comments by May 24, 2013.
      14 CFR Part 25