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Flight Suit
A flight suit is a full-body garment, worn while flying aircraft such as military airplanes, Glider (aircraft), gliders and helicopters. These suits are generally made to keep the wearer warm, as well as being practical (plenty of pockets), and durable (including Fire-retardant material, fire retardant). Its appearance is usually similar to a jumpsuit. A military flight suit may also show Military rank, rank insignia. It is sometimes used by Special Forces as a combat uniform in close quarters battle or visit, board, search, and seizure situations, for its practicality. History As aviation developed in unheated open cockpits, the need for warm clothing quickly became apparent, as did the need for multiple pockets with closures of buttons, snaps, or zippers to prevent loss of articles during maneuvers. During Aviation in World War I, World War I, whilst motoring clothing was supplied, pilots were allowed to provide their own protective clothing by private purchase. Various typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
050623-F-9032T-014 Capt
5 (five) is a number, numeral (linguistics), numeral and numerical digit, digit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number. Humans, and many other animals, have 5 Digit (anatomy), digits on their Limb (anatomy), limbs. Mathematics 5 is a Fermat prime, a Mersenne prime exponent, as well as a Fibonacci number. 5 is the first congruent number, as well as the length of the hypotenuse of the smallest integer-sided right triangle, making part of the smallest Pythagorean triple (3, 4, 5). 5 is the first safe prime and the first good prime. 11 forms the first pair of sexy primes with 5. 5 is the second Fermat number, Fermat prime, of a total of five known Fermat primes. 5 is also the first of three known Wilson primes (5, 13, 563). Geometry A shape with five sides is called a pentagon. The pentagon is the first regular polygon that does not Tessellation, tile the Plane (geometry), plane with copies of itself. It is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation In World War I
World War I was the first major conflict involving the use of aircraft. Tethered observation balloons had already been employed in several wars and would be used extensively for artillery spotting. German Empire, Germany employed Zeppelins for reconnaissance over the North Sea and Baltic Sea, Baltic and also for strategic bombing raids over Britain and the Eastern Front. Airplanes were just coming into military use at the outset of the war. Initially, they were used mostly for reconnaissance. Pilots and engineers learned from experience, leading to the development of many specialized types, including Fighter aircraft, fighters, bombers, and Ground-attack aircraft, trench strafers. Fighter ace, Ace fighter pilots were portrayed as modern knights, and many became popular heroes. The war also saw the appointment of Air commanders of World War I, high-ranking officers to direct the belligerent nations' air war efforts. While the impact of airplanes on the course of the war was mainl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A-2 Jacket
The Type A-2 leather flight jacket is an American military flight jacket closely associated with World War II U.S. Army Air Forces Aviator, pilots, navigators and bombardiers, who often decorated their jackets with Embroidered patch, squadron patches and elaborate artwork painted on the back. History A-1 Specification, using illustrative Drawing Number AN-6501, became Standard issue on 7-Nov-1927, but the chrome-tanned sheepskin A-1 was found not to be durable. The chocolate brown A-1 was intended to replace the sweater for pilots as it was as warm as a sweater, lined with brown mercerized cotton, and formed a better windbreak. It wasn't until 29-Sep-1944, when the existing A-1 stock had been exhausted, that the A-1 Specification was cancelled. The Type A-2 flying jacket was adopted as standard issue by the U.S. Army Air Corps on May 9, 1931, per specification number 94-3040 using illustrative Drawing 30-1415. The A-2 Specification lists the garment as "Jackets, Flying, Type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-17
The Boeing B-17 Flying Fortress is an American four-engined heavy bomber aircraft developed in the 1930s for the United States Army Air Corps (USAAC). A fast and high-flying bomber, the B-17 dropped more bombs than any other aircraft during World War II, used primarily in the European Theater of Operations. It is the third-most produced bomber in history, behind the American four-engined Consolidated B-24 Liberator and the German multirole, twin-engined Junkers Ju 88. The B-17 was also employed in transport, anti-submarine warfare, and search and rescue roles. In a USAAC competition, Boeing's prototype Model 299/XB-17 outperformed two other entries but crashed, losing the initial 200-bomber contract to the Douglas B-18 Bolo. Still, the Air Corps ordered 13 more B-17s for further evaluation, which were introduced into service in 1938. The B-17 evolved through numerous design advances but from its inception, the USAAC (from 1941 the United States Army Air Forces, USAAF) pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shearling
Shearling is a skin from a recently shorn sheep or lamb that has been tanned and dressed with the wool left on. It has a suede Suede (pronounced ) is a type of leather with a fuzzy, napped finish, commonly used for jackets, shoes, Textile, fabrics, Handbag, purses, furniture, and other items. Suede is made from the underside of the animal skin, which is softer and m ... surface on one side and a clipped fur surface on the other. The suede side is usually worn outward. Real shearling breathes and is more flexible, much heavier and the fur is much denser than synthetic. Synthetic shearling fur is typically called ''sherpa''. Synthetic or fake shearling has a bit of a sheen to its outer side, while real shearling outer hide is dull and a bit tacky to the touch. Genuine shearling is also smoother to the touch than synthetic shearling. Shepherds-life-boots-w.jpg, Modern shearling boots Lanpher Furs Sheep lined ulsters 11 21.jpg, Shearling coats in a 1905 catalogue Reference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressurized Cabin
Cabin pressurization is a process in which conditioned air is pumped into the cabin of an aircraft or spacecraft in order to create a safe and comfortable environment for humans flying at high altitudes. For aircraft, this air is usually bled off from the gas turbine engines at the compressor stage, and for spacecraft, it is carried in high-pressure, often cryogenic, tanks. The air is cooled, humidified, and mixed with recirculated air by one or more environmental control systems before it is distributed to the cabin. The first experimental pressurization systems saw use during the 1920s and 1930s. In the 1940s, the first commercial aircraft with a pressurized cabin entered service. The practice would become widespread a decade later, particularly with the introduction of the British de Havilland Comet jetliner in 1949. However, two catastrophic failures in 1954 temporarily grounded the Comet worldwide. These failures were investigated and found to be caused by a combinati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overvoltage
In electrical engineering, overvoltage is the raising of voltage beyond the design limit of a circuit or circuit element. The conditions may be hazardous. Depending on its duration, the overvoltage event can be transient—a voltage spike—or permanent, leading to a power surge. Explanation Electronic and electrical devices are designed to operate at a certain maximum supply voltage, and considerable damage can be caused by voltage that is higher than that for which the devices are rated. For example, an electric light bulb has a wire in it that at the given rated voltage will carry a current just large enough for the wire to get very hot (giving off light and heat), but not hot enough for it to melt. The amount of current in a circuit depends on the voltage supplied: if the voltage is too high, then the wire may melt and the light bulb burn out. Similarly other electrical devices may stop working, or may even burst into flames if an overvoltage is delivered to the circ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windmill
A windmill is a machine operated by the force of wind acting on vanes or sails to mill grain (gristmills), pump water, generate electricity, or drive other machinery. Windmills were used throughout the high medieval and early modern periods; the horizontal or panemone windmill first appeared in Persia during the 9th century, and the vertical windmill first appeared in northwestern Europe in the 12th century. Regarded as an icon of Dutch culture, there are approximately 1,000 windmills in the Netherlands today. Forerunners Wind-powered machines have been known earlier, the Babylonian emperor Hammurabi had used wind mill power for his irrigation project in Mesopotamia in the 17th century BC. Later, Hero of Alexandria (Heron) in first-century Roman Egypt described what appears to be a wind-driven wheel to power a machine.Dietrich Lohrmann, "Von der östlichen zur westlichen Windmühle", ''Archiv für Kulturgeschichte'', Vol. 77, Issue 1 (1995), pp. 1–30 (10f.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabardine
Gabardine Gabardine is a durable twill worsted wool. It is a tightly woven waterproof fabric and is used to make outerwear and various other garments, such as suit (clothing), suits, overcoats, trousers, uniforms, and windbreakers. Thomas Burberry created the fabric in the late 1870s and patented it in 1888. The name gabardine comes from "gaberdine", a type of long, cape-like dress worn during the Middle Ages. Since its debut in the late 19th century, gabardine has taken on an important role in military, active, and outerwear due to its durable, breathable, waterproof, and lightweight nature. In particular, its widespread use by the British Armed Forces during World War I produced the garments now widely recognised as the trench coat. History The word gaberdine or gabardine has been used to refer to a particular item of clothing, a sort of long cassock but often open at the front, since at least the 15th century. In the 16th century the term began to be used for outer garm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Front (World War I)
The Western Front was one of the main Theatre (warfare), theatres of war during World War I. Following the outbreak of war in August 1914, the Imperial German Army, German Army opened the Western Front by German invasion of Belgium (1914), invading Luxembourg and Belgium, then gaining military control of important industrial regions in Third Republic of France, France. The German advance was halted with the First Battle of the Marne, Battle of the Marne. Following the Race to the Sea, both sides dug in along a meandering line of fortified trench warfare, trenches, stretching from the North Sea to the Swiss frontier with France, the position of which changed little except during early 1917 and again in 1918. Between 1915 and 1917 there were several offensives along this Front (military), front. The attacks employed massive artillery bombardments and massed infantry advances. Entrenchments, machine gun emplacements, barbed wire, and artillery repeatedly inflicted severe casualties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidney Cotton
Frederick Sidney Cotton (17 June 1894 – 13 February 1969) was an Australian inventor, photographer and aviation and photography pioneer, responsible for developing and promoting an early colour film process, and largely responsible for the development of photographic reconnaissance before and during World War II. He numbered among his close friends George Eastman, Ian Fleming and Winston Churchill. Early years Frederick Sidney Cotton was born on 17 June 1894 on a cattle station at Goorganga, near Proserpine, Queensland. He was the third child of Alfred and Annie Cotton, who were involved in pastoralism. Cotton was educated at The Southport School in Queensland. In 1910, he and his family went to England, where he attended Cheltenham College; however the family returned to Australia in 1912. Cotton worked as a jackeroo, training to work with livestock at stations in New South Wales up until the outbreak of war. First World War On 4 August 1914, Britain declared war on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
