<h1>Small plane makes emergency landing on GA 36 in Covington</h1>

World War I served as a testbed for the use of the airplane as a weapon. Airplanes demonstrated their potential as mobile observation platforms, then proved themselves to be machines of war capable of causing casualties to the enemy. The earliest known aerial victory with a synchronized machine gun-armed fighter aircraft occurred in 1915, by German Luftstreitkräfte Leutnant Kurt Wintgens. Fighter aces appeared; the greatest was Manfred von Richthofen.

Most airplanes are constructed by companies with the objective of producing them in quantity for customers. The design and planning process, including safety tests, can last up to four years for small turboprops or longer for larger planes. Supersonic airliner flights, including those of the Concorde, have been limited to over-water flight at supersonic speed because of their sonic boom, which is prohibited over most populated land areas.

Isomorphisms of the topological plane are all continuous bijections. The topological plane is the natural context for the branch of graph theory that deals with planar graphs, and results such as the four color theorem. In analytic geometry, the intersection of a line and a plane in three-dimensional space can be the empty set, a point, or a line. Euclid set forth the first great landmark of mathematical thought, an axiomatic treatment of geometry. He selected a small core of undefined terms and postulates which he then used to prove various geometrical statements.

When a part or component needs to be joined together by welding for virtually any aerospace or defense application, it must meet the most stringent and specific safety regulations and standards. Nadcap, or the National Aerospace and Defense Contractors Accreditation Program sets global requirements for quality, quality management and quality assurance for aerospace engineering. In the United States, this agency is the Federal Aviation Administration .

In addition to its familiar geometric structure, with isomorphisms that are isometries with respect to the usual inner product, the plane may be viewed at various other levels of abstraction. Each level of abstraction corresponds to a specific category. (this cross product is zero if and only if the planes are parallel, and are therefore non-intersecting or entirely coincident). Mach number, in honour of the Austrian physicist Ernst Mach. The critical Mach number for an aircraft has been defined as that at which on some point of the aircraft the airflow has reached the speed of sound.

In mathematics it is a common convention to express the normal as a unit vector, but the above argument holds for a normal vector of any non-zero length. Two distinct lines perpendicular to the same plane must be parallel to each other. A line is either parallel to a plane, intersects it at a single point, or is contained in the plane. Two distinct planes are either parallel or they intersect in a line. Parasitic drag is that caused by form resistance , skin friction, interference, and all other elements that are not contributing to lift; induced drag is that created as a result of the generation of lift.

In 1883, the American John J. Montgomery made a controlled flight in a glider. Other aviators who made similar flights at that time were Otto Lilienthal, Percy Pilcher, and Octave Chanute. With our airplane games, you can partake and have fun controlling and directing jets.

The higher pressure from below pushes the wing up to the lower pressure area. Simultaneously the air flowing along the underside of the wing is deflected downward, providing a Newtonian equal and opposite reaction and contributing to the total lift. Thrust, the forward-acting force provided plane by the propulsion system . Drag and weight are elements inherent in any object, including an aircraft. Lift and thrust are artificially created elements devised to enable an aircraft to fly. In 1799 he set forth for the first time in history the concept of the modern aeroplane.