Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,909,919,477 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Empennage

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
empennage: see airplane airplane, aeroplane, or aircraft, heavier-than-air vehicle, mechanically driven and fitted with fixed wings that support it in flight through the dynamic action of the air.
..... Click the link for more information.
.
empennage [¦am·pə¦näzh]
(aerospace engineering)
The assembly at the rear of an aircraft; it comprises the horizontal and vertical stabilizers. Also known as tail assembly.

Empennage 

aerodynamic surfaces of an aircraft that provide longitudinal and directional stability of the aircraft and control its flight. The control surfaces are usually located in the tail part of the fuselage, and less frequently in the nose part. The design of the empennage is similar to that of an aircraft wing; its total surface is 0.25–0.50 of the wing surface. The various types of empennage are distinguished by their front view, side view, and plan view (rectangular, tapered, elliptical, and, for highspeed aircraft, swept-back). The front part of the horizontal empennage, which carries the elevators, is called the stabilizer. The front part of the vertical empennage, which carries the rudder, is called the fin vertical stabilizer.

The elevator is moved by the pilot using the control stick (pulling the stick toward the pilot causes the aircraft to climb; pushing the stick away from the pilot causes the aircraft to descend). The rudder is operated by foot pedals (pressure on the right pedal makes the aircraft turn to the right; pressure on the left pedal results in a left turn). The angles of deflection of the elevator and rudder are usually ±25°–30°. To maintain proper longitudinal stability of the aircraft, the stabilizer is usually equipped with trim tabs, which can be operated by the pilot to adjust the angle of attack within a range of +5° to — 15°. The trimming mechanism is sometimes connected to the control stick, thus causing the stabilizer to operate together with the elevator. The elevator and rudder are often omitted entirely, and the horizontal and vertical empennage are of the all-moving type. In addition, transverse stability of the aircraft (normally provided by the ailerons) can be improved by connecting the right and left halves of the horizontal empennage with the aileron control, thus enabling the elevators to deflect in opposite directions (differential control). The same scheme is used in operating the rudders and the elevators of V-shaped empennage.

S. IA. MAKAROV



Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
The plant will manufacture components such as flap track fairings, ailerons, spoilers and assemblies for Airbus aircraft and the empennage for ATR Regional Aircraft -- a joint venture between Airbus parent EADS and Italian air and defence company Finmeccanica, Mubadala said in June.
The plant, which will be called Strata and is the first of its kind in the region, will manufacture advanced composite aerostructures, including flap track fairings, ailerons, spoilers and assemblies for Airbus aircraft and the empennage for the ATR Regional Aircraft (ATR is a joint venture between EADS and Finmeccanica).
The plant will manufacture advanced composite aerostructures, including flap track fairings, ailerons, spoilers and assemblies for Airbus aircraft and the empennage for the ATR Regional Aircraft - (ATR is a joint venture between EADS and Finmeccanica).
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.