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2605.
Flight: Flight is the process by which an object moves either through the air, or movement beyond earth's atmosphere (as in the case of spaceflight), by aerodynamically generating lift, propulsive thrust or a
http://explorer.cekli.com/ppt/flight
2606.
Air: The Earth's atmosphere is a layer of gases surrounding the planet Earth that is retained by Earth's gravity. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation, warming the
http://explorer.cekli.com/ppt/air
2607.
Atmosphere: An atmosphere (from Greek ????? - atmos, 'vapor' + ?????? - sphaira, 'sphere') is a layer of gases that may surround a material body of sufficient mass,[1] by the gravity of the body, and are retained
http://explorer.cekli.com/ppt/atmosphere
2608.
Balloons: A balloon is an inflatable flexible bag filled with a type of gas, such as helium, hydrogen, nitrous oxide or air. Modern balloons can be made from materials such as rubber, latex, polychloroprene, or
http://explorer.cekli.com/ppt/balloons
2609.
Blimps: A blimp, or non-rigid airship, is an airship without an internal supporting framework or keel. A non-rigid airship differs from a semi-rigid airship and a rigid airship (e.g., a Zeppelin) in that it d
http://explorer.cekli.com/ppt/blimps
2610.
Dirigibles: An airship or dirigible is a lighter-than-air aircraft that can be steered and propelled through the air using rudders and propellers or other thrust. Unlike other aerodynamic aircraft such as fixed-w
http://explorer.cekli.com/ppt/dirigibles
2611.
Lift (force): A fluid flowing past the surface of a body exerts a force on it. Lift is defined to be the component of this force that is perpendicular to the oncoming flow direction.[1] It contrasts with the drag f
http://explorer.cekli.com/ppt/lift-(force)
2612.
Wings: A wing is a surface used to produce lift for flight through the air or another gaseous or fluid medium. The wing shape is usually an airfoil. The word originally referred only to the foremost limbs of
http://explorer.cekli.com/ppt/wings
2613.
Airplanes: A fixed-wing aircraft, usually called an airplane, aeroplane or plane, is an aircraft capable of flight using forward motion that causes air to pass over its wings to generate lift. Planes include jet
http://explorer.cekli.com/ppt/airplanes
2614.
Gliders: A type of glider aircraft (commonly known as a glider, sometimes as a sailplane) is used in the sport of gliding.[1][2] Some gliders, known as motor gliders are used for gliding and soar well, but hav
http://explorer.cekli.com/ppt/gliders
2615.
Helicopters: A helicopter is an aircraft that is lifted and propelled by one or more horizontal rotors, each rotor consisting of two or more rotor blades. Helicopters are classified as rotorcraft or rotary-wing ai
http://explorer.cekli.com/ppt/helicopters
2616.
Gyrocopters: An autogyro, also known as gyroplane, gyrocopter, or rotaplane, is a type of rotorcraft which utilises an unpowered rotor in autorotation to develop lift, and an engine-powered propeller, similar to t
http://explorer.cekli.com/ppt/gyrocopters
2617.
Cruise missile: A cruise missile is a guided missile that carries an explosive payload and uses a lifting wing and a propulsion system, usually a jet engine, to allow sustained flight; it is essentially a flying bomb
http://explorer.cekli.com/ppt/cruise-missile
2618.
Aviator: An aviator is a person who flies aircraft for pleasure or as a profession. The first recorded use of the term was in 1887 as a variation of the French 'aviation', from the latin 'avis', coined 1863 by
http://explorer.cekli.com/ppt/aviator
2619.
Unmanned aerial vehicles: An unmanned aerial vehicle (UAV; also known as a remotely operated aircraft) is an aircraft that flies without a human crew. Their largest uses are in military applications. To distinguish UAVs from m
http://explorer.cekli.com/ppt/unmanned-aerial-vehicles
2620.
Remotely piloted vehicle: An unmanned aerial vehicle (UAV; also known as a remotely operated aircraft) is an aircraft that flies without a human crew. Their largest uses are in military applications. To distinguish UAVs from m
http://explorer.cekli.com/ppt/remotely-piloted-vehicle
2621.
Target drone: A target drone is an unmanned, remote controlled aerial vehicle, usually used in the training of anti-aircraft crews.
http://explorer.cekli.com/ppt/target-drone
2622.
Hot air balloon: The hot air balloon is the second to oldest unsuccessful human-carrying flight technology and is a subset of balloon aircraft.
http://explorer.cekli.com/ppt/hot-air-balloon
2623.
Kongming lantern: Sky lanterns (sky candles) (simplified Chinese: ??; traditional Chinese: ??; pinyin: ti?n d?ng or simplified Chinese: ???; traditional Chinese: ???; pinyin: k?ngmíng d?ng) are air
http://explorer.cekli.com/ppt/kongming-lantern
2624.
Zeppelin: For the English rock group, please see Led Zeppelin. For other meanings please see Zeppelin (disambiguation).
http://explorer.cekli.com/ppt/zeppelin
2625.
Hindenburg disaster: The Hindenburg disaster took place on Thursday 6 May 1937 as the LZ 129 Hindenburg caught fire and was destroyed within one minute while attempting to dock with its mooring mast at the Lakehurst Naval
http://explorer.cekli.com/ppt/hindenburg-disaster
2626.
Non-rigid airship: A blimp, or non-rigid airship, is an airship without an internal supporting framework or keel. A non-rigid airship differs from a semi-rigid airship and a rigid airship (e.g., a Zeppelin) in that it d
http://explorer.cekli.com/ppt/non-rigid-airship
2627.
Aerodynamics: Aerodynamics is a branch of dynamics concerned with studying the motion of air, particularly when it interacts with a moving object. Aerodynamics is a subfield of fluid dynamics and gas dynamics, with
http://explorer.cekli.com/ppt/aerodynamics
2628.
Newton\'s laws of motion: Newton's laws of motion are three physical laws that form the basis for classical mechanics. They are:
http://explorer.cekli.com/ppt/newton%27s-laws-of-motion
2629.
Vertical direction: In astronomy, geography, geometry and related sciences and contexts, a direction passing by a given point is said to be vertical if it is locally aligned with the gradient of the gravity field, i.e.,
http://explorer.cekli.com/ppt/vertical-direction
2630.
Acronym and initialism: Acronyms and initialisms are abbreviations that are formed using the initial components in a phrase or name. These components may be individual letters (as in CEO) or parts of words (as in Benelux or
http://explorer.cekli.com/ppt/acronym-and-initialism
2631.
Hawker Siddeley Harrier: The Hawker Siddeley Harrier GR.1/GR.3 and the AV-8A Harrier are the first generation of the Harrier series, the first operational close-support and reconnaissance fighter aircraft with Vertical/Short
http://explorer.cekli.com/ppt/hawker-siddeley-harrier
2632.
STOL: STOL is an acronym for short take-off and landing, a term used to describe aircraft with very short runway requirements.
http://explorer.cekli.com/ppt/stol
2633.
STOVL: STOVL is an acronym for Short Take Off and Vertical Landing.
http://explorer.cekli.com/ppt/stovl
2634.
Boeing 747: The Boeing 747 is a widebody commercial airliner, often referred to by the nickname "Jumbo Jet".[5][6] It is among the world's most recognizable aircraft,[7] and was the first widebody ever produced.
http://explorer.cekli.com/ppt/boeing-747
2635.
Boeing 747-8: The Boeing 747-8 is a widebody commercial airliner being developed by Boeing Commercial Airplanes. Officially announced in 2005, the 747-8 is the latest evolutionary variant of the Boeing 747, with le
http://explorer.cekli.com/ppt/boeing-747-8
2636.
Antonov An-225: The An-225 Mriya (Ukrainian: ??????? ??-225 ????, NATO reporting name: 'Cossack') is a strategic airlift transport aircraft which was built by the Antonov Design Bureau (Kyiv, Kharkiv in Ukraine) duri
http://explorer.cekli.com/ppt/antonov-an-225
2637.
Hughes H-4 Hercules: The Hughes H-4 Hercules (registration NX37602) was a prototype heavy transport aircraft designed and built by the Hughes Aircraft company. The aircraft made its only flight on November 2, 1947. Built
http://explorer.cekli.com/ppt/hughes-h-4-hercules
2638.
Wind: Wind is the flow of air or other gases that compose an atmosphere (including that of the planet Earth). On Earth, wind consists of the bulk movement of air. In outer space, solar wind is the movement
http://explorer.cekli.com/ppt/wind
2639.
Wing configuration: This article summarises the wing configurations of fixed-wing aircraft, popularly called aeroplanes, airplanes or just planes.
http://explorer.cekli.com/ppt/wing-configuration
2640.
Monoplane: A monoplane is an aircraft with one main set of wing surfaces, in contrast to a biplane or triplane. Since the late 1930s it has been the most common form for a fixed wing aircraft.
http://explorer.cekli.com/ppt/monoplane
2641.
Biplane: A biplane is a fixed-wing aircraft with two main wings. The Wright brothers' Wright Flyer used a biplane design, as did most aircraft in the early years of aviation. While a biplane wing structure has
http://explorer.cekli.com/ppt/biplane
2642.
Aspect ratio: The aspect ratio of a shape is the ratio of its longer dimension to its shorter dimension. It may be applied to two characteristic dimensions of a three-dimensional shape, such as the ratio of the lon
http://explorer.cekli.com/ppt/aspect-ratio
2643.
Swept wing: A swept wing is a wing planform with a wing root to wingtip direction angled beyond (usually aftward) the spanwise axis, generally used to delay the drag rise caused by fluid compressibility. Swept wi
http://explorer.cekli.com/ppt/swept-wing
2644.
Delta wing: The delta wing is a wing planform in the form of a triangle, named after the Greek uppercase delta which is a triangle (?).
http://explorer.cekli.com/ppt/delta-wing
2645.
Dihedral (aircraft): Dihedral Angle is the upward angle from horizontal of the wings or tailplane of a fixed-wing aircraft. Anhedral Angle is the name given to negative Dihedral Angle, that is, when there is a downward an
http://explorer.cekli.com/ppt/dihedral-(aircraft)
2646.
Variable geometry: Variable geometry may refer to:
http://explorer.cekli.com/ppt/variable-geometry
2647.
Empennage: Empennage (pronounced /???mp??n???/ or /??mp?n?d?/) is an aviation term used to describe the tail portion of an aircraft. The empennage is also known as the tail or tail assembly; all three terms may
http://explorer.cekli.com/ppt/empennage
2648.
Fuselage: The fuselage (from the French fuselé "spindle-shaped") is an aircraft's main body section that holds crew and passengers or cargo. In single-engine aircraft it will usually contain an engine, althoug
http://explorer.cekli.com/ppt/fuselage
2649.
Amphibious aircraft: An amphibious or amphibian aircraft is an aircraft that can take off and land on either land or water. Amphibious aircraft are typically flying boats and floatplanes with retractable wheels.
http://explorer.cekli.com/ppt/amphibious-aircraft
2650.
Wing-In-Ground effect vehicle: A ground effect vehicle (GEV) is one that attains level flight near the surface of the Earth, made possible by a cushion of high-pressure air created by the aerodynamic interaction between the wings a
http://explorer.cekli.com/ppt/wing-in-ground-effect-vehicle
2651.
Ekranoplan: A ground effect vehicle (GEV) is one that attains level flight near the surface of the Earth, made possible by a cushion of high-pressure air created by the aerodynamic interaction between the wings a
http://explorer.cekli.com/ppt/ekranoplan
2652.
Ground effect in aircraft: Aircraft may be affected by a number of ground effects, aerodynamic effects due to a flying body's proximity to the ground.
http://explorer.cekli.com/ppt/ground-effect-in-aircraft
2653.
Mil Mi-26: The Mil Mi-26 (Russian ???? ??-26, NATO reporting name 'Halo') is a Soviet/Russian heavy transport helicopter in service in civilian and military roles. It is the biggest and most powerful helicopter
http://explorer.cekli.com/ppt/mil-mi-26
2654.
Autorotation: In aviation, the word autorotation is applied to operation of fixed-wing aircraft and rotary-wing aircraft. The word has significantly different meanings in each of these two applications.
http://explorer.cekli.com/ppt/autorotation
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