اصطلاحات سازه ای هواپیما

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بسم الثه الرحمن الرحيم 

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eee ‏اش‎ AIRCRAFT Definitions 

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Nomenclature and oe a. سس movable control surfaces attached to the trailing edge of each wing tip. purpose control the airplane in roll. Lari double sets a small inboard set for cruise speeds ‘outboard set for approach and landing 

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Nomenclature and Definitions Angle between the chord of an airfoil and the longitudinal axis of an airplay soo 

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Nomenclature and Definitions ‘Angle of incidence of a vertical or horizontal stabilizer. 01 cog 

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Nomenclature and Definitions ‘The angle between a reference line in a swept or tapered airfoil :nd a given refrence line established for the purpose. For fixed rfolls the angle is measured between the lateral axis of the airplane and the refrence line of the airfoil usually the mean Or 8 

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Nomenclature and Definitions ‏وده لمم‎ wirotio roo ‘Awire in certain kinds of wing structures,running from an inboard point near the trailing edge to an outboard point near the landing gear edge ,designed to resist forces acting on the wing in the direction of flight. 

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Nomenclature and Definitions 

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Nomenclature and Definitions A control surface that is in a desired condition o quilibrium about its hingeaxis .such a surface can balanced for either static or aerodynamic conditions - مد 

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Nomenclature and Definitions nen Berotor Noves Up Balance Tab Moves Down ‘A tab so linked that when the control surface to which it is attached is deflected, the tab is deflected in an ‏زه‎ direction ,creating a force that aids in moving the larger surface. 

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Nomenclature and Definitions ‘A tubular or truss structure extending aft from the alrerft fuselay Normally found on helicopters to support the tail rotor ind its systems or to support control surfaces on an aircrft having a pusher propeller installation. « 

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Nomenclature and Definitio 

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Definitions Cabane ‘An arrangement of struts used to support a wing above the fuselage of an airplane. 1 

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Nomenclature and Definitij AIC configuration having it's horizontal stabilizing and control Surfaces in front of the wing or wings. كد 01 

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Nomenclature and Definitions ‘Beam or member supported at or near one end only, without external bracing 01 veg 

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Nomenclature and Definitions Middle or central section of an airplane wing to which the outer wing pan سجن ‎lof‏ 05 مد 

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Nomenclature and Definitions camber of Upper Sunace Leading Trailing Edge’ Edge Camber of Lower Surta straight line connecting the leading edge and the trailing edge of an airfoil. » og 

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Nomenclature and Definitions (On small aircraft, area occupied by the pilot and passengers. On cabin airplanes, if the pilot's compartment is separated called the cockpit. 01 «5 

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Nomenclature and Definitioy ‘A transparent cover for the cockpit. ano 

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Nomenclature and Definitions ع Cables connecting the control levers with the control surfaces. <« 

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Nomenclature and Definiti oO Vertical lever by which the pilot operates the longitudinal and lateral control surfaces of the airplane. The elevator fore-and-aft ‘movement, ailerons sideways movement of It. 200 

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Nomenclature and Definitions ~ Oo 

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Definitior Control wheel ‘A. wheel or semiwheel used in conection with the control column inanairplane. Rotation of the wheel operates the ailerons for control about the roll axis.fore-and-aft movement of the whet operates the elevators to pitch the airplane about the lateral 25 

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Cowling ‘A removable cover or housing placed over or around an aircraft ‘component or section, especially an engine. 26 

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Nomenclature and Definitions Difference between the angles of incidence for two airfoils on the ‘same airplane. It generally refers to the two wings of 2 Oo 

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Nomenclature and Definitions ‘The angle between the aircraft lateral axis and the projection of the wing axis of the airplane. If the tip of the wing is higher than the root section, the dihedral angle is positive; if lower, the dihedral angle is negative. 01 «5 

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Nomenclature and Definitic ‏ها‎ ‏سس‎ ۰ ‘Any strut used to resist dragor antidrag forces. In a wing itis a fore-and-aft compression member.in landing gear it is astrut that runs diagonally up into the airplane to resist drag force » Oo 

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Nomenclature and Definitions ‘A.wire in certain kinds of wing structures running from a forward inboard point to an aft outboard point to resist drag forces. 200 

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Nomenclature and Definitions uxillary airfoil or control surface of the aircraft and attack of the wing. It controls rotation about the << 

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Nomenclature and Definitions Elevens Control surfaces which serve the functions of both elevators and ailerons on all wing and delta-wing aircraft. 200 

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Nomenclature and Defini Piece, part, or structure, having a smooth streamlined contour, used to cover a non-streamlined object or to smooth a junction < 

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Nomenclature and Definition mm A vertical stabilizer so 

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firewall {A fireproof or fire-resistant wall or bulkhead separating an ‘engine from the rest of the aircraft structure to prevent the spreading of a fire from the engine compartment. 36 

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Nomenclature and Definitigr Ahinged, pivoted, or sliding airfoil or plate, normally located at fended or deflected downward to ly used for takeoff or | the trailing edge of a wing, the lift and/or drag. It is gener 

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Nomenclature and Definit ‘A vertical structural member which supports the stringers and ‘skin of a wood or metal fuselage and gives the fuselage shape 2 Oo 

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The main or central structure of A/C typically elongated and approximately streamlined, which carries the crew and pas Sengers and to which the wings are attached 01 ong 

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Nomenclature and Definit] ‘The distance between the chords of two perposed airfoils. 01 ong 

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Nomenclature and Definiti ==. {A stabilizer mounted horizontally on an airplane affording longitudinal stability and to which elevators are attached. 2d 

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Nomenclature and Definitions A short lever fastened to a control surface to which an operating cable or rod is attached. ۰ 

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Nomenclature and Definity ‘A small door used especially for inspection of the interior of an airplans ooo 

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Nomenclature and Definitions A rib or internal brace inside a box beam spar 6 Oo 

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Nomenclature and Defini F surfaces. ۰ 

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Nomenclature and Definitions outer wing __ inner wing —— ‘An auxiliary strut that braces a main strut or struts. 01 “oo 

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Nomenclature and Di ‘The understructure that supports the weight of the airplat the ground, also called alighting gear. oOo 

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Nomenclature and Definitions Wires or cables that brace the wings against the forces that are opposite to the normaldirection of lift. ۰ 

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Nomenclature and Definitions Leading Upper Camber ‏طسو ملاس‎ Thing The foremost or front edge of an airfoil or a propeller blade. The rearmost edge Is called the trailing edge 01 soa 

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Nomenclature and Definitions A structural member attached at one end to some midpoint of a wing or stabilizer and at the other end to the fuselage << 

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Nomenclature and Definitions Wires or cables that brace the wings against the forces oflift. ‘They are also called flying wire. د 01 

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Nomenclature and Definit {fore-and-aft) member of the framing of ally continuous across a number of ‘A principal longi an aircraft fuselag points of support. : 

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Nomenclature and Definit ‘The principal rotating airfoil used to generate lift and support the weight of a rotorcraft. ده 

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Nomenclature and Definiti ‘A wheel placed al 

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Nomenclature and Definition ‘The heavy metal skin, often tapered in thickness, used to core the wings and other parts of large aircraft. 7 Oo 

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Nomenclature and Definitic ==. Ahinged or movable airfoil used to control the yawing motion of an aircraft. <« 0 

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Nomenclature and Definitions ‘A control surface, set at a pronounced-dihedral (forming a wide V), that serves as both a rudder and elevator. ol «5 

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Nomenclature and Definitic ‘A device built into the landing gear to reduce the shock during landing or taking off. agg 

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Nomenclature and Definitions - Fixed type of landing gear made of tubulai indjor flat structures, normally associated with helicopters. eng 

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Auxiliary airfoil contoured to the leading edge of a wing when closed. When open, it forms the slot to improve airflow at high angles of attack and stall. مه 01 

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{A fixed opening in the leading edge of an airfoil which is used to direct airflow over the surface at high angles of attack to improve control and lift at these attitudes. 01 «5 

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Nomenclature and Definitis ‘Span The maximum distance, measured parallel to the lateral axis, from tip to tip of any surface such as a wing or stabilizer. 01 soo 

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Nomenclature and Defini ‘Spar A primary structural member of a wing, stabilizer, control surface, rotor, or other aerodynamic surface. «6 Oo 

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Nomenclature and Definityy {A fairing of apporoximately conic or paraboloidal shape, fitted coaxially with the propeller hub and spinning with the propeller. ۰5 

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Spoiler ‘Spoiler A device located on the top surface of a wing which can bbe extended to reduce or “spoil” the lift of the wing. This may be used to control the aircraft rate of descent, lateral movement (roll), or to increase braking effectiveness on landing 6 

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Nomenclature and Definit ‘Stabilator ۸ horizontal control surface that Is designed to serve ‘as both a stabilizer and an elevator. It is moved about its hinge line by means of the pilot's control. eft 

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Nomenclature and Definitic ==. Stabilizer A fixed or adjustable airfoil or vane that provides stability for an aircraft. «: 8 

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Nomenclature and Definitions With twoor more superposed objects or objects fixed ina row, the advance or the amount of advance of one object. - 55 

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Nomenclature and Defini Stringer A longitudinal structural member installed between fuselage frames and formers to give support and strength to the skin 200 

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Nomenclature and Definitions A supporting brace that bears compression loads, tension I for both, as in a fuselage between the longerons or in a landing gear to transmit the airplane loads “Oo 

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The backward slant from root to tip of an aerodynamic surface. 01 - 

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Nomenclature and Defini The sm rotor mounted ona shaft at the tail of a helicopter to counteract the torque of the main rotor and provide directional control for the helicopter. sometimes it is referred to as an intitorque rotor. 7 OG 

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Nomenclature and Definitions ‘A wheel at the tail of certain airplanes used to support the tail section on the ground. A tail wheel may be steerable, retractable, fixed 7525 

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Nomenclature and Definitions Leading Upper Camber ‏طسو ملاس‎ Thing ‘The aft edge of an airfoil surf م 01 

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Nomenclature end Definitions > ‘Trim tab: A tab attached to the trailing edge of an airfoll, used to aid in control surface operation. 7 Oo 

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Nomenclature and Defini A chordwise member used to give the wing its shape and to transmit the load from the surface covering to the spars. ۰ 

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Nomenclature and Defini ‘A principal spanwise member in the structure of a wing. ol ۰ 8 

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Nomenclature and Defini The outer extremity of a wing. eno 

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Fuselage 30 | | positions == : 

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MAHDI RAHNAMA, 00 ::