GLOSSARY OF TERMS Aileron Bogie Drag Galley A movable surface The wheel assembly on The resistance of air The compartment where hinged to the trailing the main landing leg. against moving objects. all supplies necessary for edge of a plane’s wing to food and drinks to be control roll. Bulkhead Elevator served during the flight A solid partition that A control surface hinged are stored. separates one part of an to the back of the airplane from another. tailplane that controls Glide Slope climb and descent. The descent path along Cantilever which an aircraft comes A beam or other struc- to land. ture that is supported at one end only. Gyrocompass Airfoil A nonmagnetic compass Cockpit Elevator that indicates true north. Airfoil The compartment in an A shaped surface that aircraft that houses the Fin Inertial Navigation causes lift when pilot and crew. The fixed vertical surface System propelled through the air. of a plane’s tail unit that A system that continu- A wing, propeller, rotor Control surface controls roll and yaw. ously measures changes blade, and tailplane are A movable surface that, in an airplane’s speed all airfoils. when moved, changes an Flap and direction and feeds aircraft’s angle or direc- A surface hinged to the the information into a Airspeed Indicator tion of flight. trailing edge of the wings computer that deter- An instrument that that can be lowered mines an aircraft’s precise measures the speed of an Copilot partially, to increase lift, position. aircraft in flight. The second pilot. or fully, to increase drag. Instrument Landing Air Traffic Control Delta Wing Flight Deck System The ground-based A triangular or near- The crew compartment The system that guides a system that directs the triangular shaped wing, in a cabin aircraft. pilot when landing a movement of aircraft. with the trailing edge plane in poor visibility forming the flat base of Flight Recorder with two sets of radio Altimeter the triangle. The A crash-proof device that beans transmitted from The instrument that Concorde has delta continually notes the the ground alongside a records the height at wings. speed, height, control- runway. which an aircraft is flying. surface position, and other important aspects Jet Engine Autopilot of an airplane in flight. An engine that draws in An electronic device that air and burns fuel to end automatically maintains Flying Boat a stream of hot gas that an aircraft in steady An airplane that can land creates the thrust that flight. on and take off from propels an aircraft water due to its boat- forward. Biplane Delta shaped hull. Jet Engine An airplane with two sets wing of wings, one fixed above Fuselage the other. The body of an aircraft. GLOSSARY OF TERMS cont’d Leading Edge Propeller Rudder Trailing Edge An airfoil’s front edge. The engine-driven rotating The movable control surface An airfoil’s rear edge. blades that create the thrust that hinged to the tail fin that Lift pushes an aircraft forward. controls yaw. Turbofan The force generated by an A jet engine in which the airfoil at a 90-degree angle to Slat bulk of the air intake the airstream flowing past it. An extra, small aileron fitted bypasses the turbine and Propeller to the leading edge of an is discharged as a cold Mach 1 airfoil to increase lift. jet. The speed of sound (741 mph; 1193 km/h). Radar Slot Turbojet Radio Detection and Ranging: The gap between the slat A jet engine in which the Magnetic Compass the navigation system that uses and the main airfoil surface. entire air intake passes An instrument that contains a beams of directed radio waves through the combustion magnet that always settles to locate and detect objects. Span chamber and is pointing to the magnetic The distance from wingtip to discharged as a hot jet. north. Radome wingtip. The protective covering that Turboprop Pitch houses radar antenna, made Spoiler A gas-turbne engine that The movement of an aircraft from a material through which The control surface of an drives a propeller. around an imaginary line radar waves can pass. aircraft’s wings that disturbs extending from wingtip to air flow over the wing and VTOL wingtip, that results in the tail Reverse Pitch destroys lift. In use, a spoiler Vertical Takeoff and moving up and down. Pitch A set of an airplane’s propeller increases drag and slows an Landing is controlled by elevators on blades that exerts a backward aircraft. the tailplane. thrust to slow an aircraft after VTOL landing. Supersonic Aircraft Planes that fly at speeds Pitch Reverse Thrust greater than Mach 1. The effect caused by deflecting jet exhaust forward to produce a Tailplane rearward thrust that slows an The horizontal airfoil surface airplane after it lands. of the tail unit that provides stability along the length of Wing Roll an aircraft. The tailplane may The principle supporting The movement of an airplane be fixed or adjustable. surface on both sides of Power Plant around the imaginary line that an aircraft. An aircraft’s engine or runs down the centre of the Thrust engines. aircraft from nose to tail. The The force generated by Yaw tilting, sideways motion is propellers or jet engine flow The swivel movement to controlled by the aileons. that propels a plane through right and left that can be the air. controlled by the rudder Roll on the tail fin. Thrust Reversers The parts of the engine that deflect exhaust gases forward to slow an aircraft Yaw when landing..