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The center of gravity (CG) of an aircraft is the point over which the aircraft would balance. [ 1] Its position is calculated after supporting the aircraft on at least two sets of weighing scales or load cells and noting the weight shown on each set of scales or load cells. The center of gravity affects the stability of the aircraft.
The most common high-lift device is the flap, a movable portion of the wing that can be lowered to produce extra lift. When a flap is lowered this re-shapes the wing section to give it more camber. Flaps are usually located on the trailing edge of a wing, while leading edge flaps are used occasionally. There are many kinds of trailing-edge flap.
The coordinates R of the center of mass of a two-particle system, P 1 and P 2, with masses m 1 and m 2 is given by = + +. Let the percentage of the total mass divided between these two particles vary from 100% P 1 and 0% P 2 through 50% P 1 and 50% P 2 to 0% P 1 and 100% P 2 , then the center of mass R moves along the line from P 1 to P 2 .
Mach tuck. Mach tuck is an aerodynamic effect whereby the nose of an aircraft tends to pitch downward as the airflow around the wing reaches supersonic speeds. This diving tendency is also known as tuck under. [ 1] The aircraft will first experience this effect at significantly below Mach 1. [ 2]
The particular location of a point on Earth's surface that can be expressed by a grid reference such as latitude and longitude. [1] accessibility A locational characteristic that permits a place to be reached by the efforts of those at other places. [2] accessibility resource A naturally emergent landscape form that eases communication between ...
This page lists films that are set fully, or almost entirely, in only one location. Such films are sometimes referred to as "bottle movies" [1] or "chamber pieces". [2] [3] [4] In June 2023, film critic Chris Stuckmann speculated that the limitations that chamber pieces bring not only make writers self-conscious but also drive their creativity.
For small angles, M can also be considered to be fixed, while B moves as the ship heels. The metacentric height ( GM) is a measurement of the initial static stability of a floating body [ 1]. It is calculated as the distance between the centre of gravity of a ship and its metacentre. A larger metacentric height implies greater initial stability ...
The environmental lapse rate (ELR), is the rate of decrease of temperature with altitude in the stationary atmosphere at a given time and location. As an average, the International Civil Aviation Organization (ICAO) defines an international standard atmosphere (ISA) with a temperature lapse rate of 6.50 °C/km [ 15 ] (3.56 °F or 1.98 °C/1,000 ...