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Topic Review
AH-IV
The AH-IV was a Czechoslovak-designed tankette used by Romania, Sweden and Iran during World War II. The Romanian vehicles saw action on the Eastern Front from Operation Barbarossa to the Vienna Offensive. Twenty vehicles were sold to Ethiopia after the war who used them until the Eighties. Romania also created a prototype, called R-1-a.
  • 294
  • 29 Sep 2022
Topic Review
Air Nautique
The Super Air Nautique line-up of Nautique Boats is Correct Craft's crossover-wakeboarding focused model; the boat is outfitted for wakeboarding with a tower and ballast tanks from the factory. Furthermore, some Super Air Nautiques are in V-drive format, which creates a bigger wake for the rider. The first Air Nautique was built in 1997; it was built on the existing Sport Nautique Hull and had an automatic rear ballast system (Launch Control System or "LCS"). Other notable "landmarks" included Correct Craft's patented "Flight Control Tower", which was essentially a modified fishing tower. In 2019 Nautique released the Super Air Nautique G23 Paragon, this new release is the most expensive boat Nautique has created and is aimed at being the most luxurious experience on the water. In 2013 the Super Air Nautique has moved from being primarily for wakeboarding but now also wakesurfing. This has come with the addition of wake-plates located on the stern of the boat and ventilation systems that direct the exhaust into the propeller jet stream. The new features that Nautique has added is known as the Nautique Surf System (NSS).
  • 657
  • 14 Nov 2022
Topic Review
Airborne Wind Energy
Airborne wind energy (AWE) is the direct use or generation of wind energy by the use of aerodynamic or aerostatic lift devices. AWE technology is able to harvest high altitude winds, in contrast to wind turbines, which use a rotor mounted on a tower. The term high-altitude wind power (HAWP) has been used to refer to AWE systems. However, semantically HAWP might also include wind energy conversion systems that are somehow positioned at a large height from the ground or sea surface. Various mechanisms are proposed for capturing the kinetic energy of winds such as kites, kytoons, aerostats, gliders, gliders with turbines for regenerative soaring, sailplanes with turbines, or other airfoils, including multiple-point building- or terrain-enabled holdings. Once the mechanical energy is derived from the wind's kinetic energy, then many options are available for using that mechanical energy: direct traction, conversion to electricity aloft or at ground station, conversion to laser or microwave for power beaming to other aircraft or ground receivers. Energy generated by a high-altitude system may be used aloft or sent to the ground surface by conducting cables, mechanical force through a tether, rotation of endless line loop, movement of changed chemicals, flow of high-pressure gases, flow of low-pressure gases, or laser or microwave power beams.
  • 561
  • 14 Oct 2022
Topic Review
Airbus Beluga XL
The Airbus BelugaXL (A330-743L) is a large transport aircraft based on the Airbus A330-200F built by Airbus to replace the original Airbus Beluga in the movement of oversized aircraft components like wings. The aircraft made its first flight on 19 July 2018, and received its type certification on 13 November 2019. The BelugaXL entered service with Airbus Transport on 9 January 2020.
  • 1.1K
  • 27 Oct 2022
Topic Review
Airco DH.10
The Airco DH.10 Amiens was a United Kingdom twin-engined medium bomber designed and built towards the end of the First World War. It served briefly postwar with the RAF.
  • 439
  • 08 Nov 2022
Topic Review
Aircraft Livery
An aircraft livery is a set of comprehensive insignia comprising color, graphic, and typographical identifiers which operators (airlines, governments, Air force s and occasionally private and corporate owners) apply to their aircraft. As aircraft liveries evolved in the years after the Second World War, they became a leading subset of the emerging disciplines of corporate identity and branding and among the most prominent examples of fashion. They have provided an arena for the work of distinguished designers and eminent lay people like Raymond Loewy, Alexander Girard, and Jacqueline Kennedy Onassis. The term is an adaptation of the word livery: the uniform-style clothing worn by servants of wealthy families and government representatives until the early/mid-20th century. With the advent of stagecoaches, railway trains, and steamships, the term livery spread to their decoration. Since the 1950s, elements of airline liveries permeated ground vehicles, advertising, proprietary airport furniture, airline promotional materials and aircrew uniforms in an increasingly integrated manner, spreading to airline websites in the 1990s. Since the 1950s and 60s, aircraft liveries have usually been uniform livery across an entire fleet. One-off custom-designs might be applied from time to time to individual fleet members to highlight set occasions.
  • 2.3K
  • 21 Oct 2022
Topic Review
Aircraft Noise
Aircraft noise is noise pollution produced by aircraft during the various phases of a flight. Sound production is divided into three categories: Health consequences include sleep disturbance, hearing impairment and heart disease, as well as workplace accidents caused by stress. Memory and recall can also be affected. Governments have enacted extensive controls that apply to aircraft designers, manufacturers, and operators, resulting in improved procedures and cuts in pollution.
  • 1.1K
  • 26 Oct 2022
Topic Review
Al-Abid
The Al-Abid(Arabic: العابد) LV was an Iraqi three-stage "Satellite launch system", a civilian project that was commenced in 1988. The Iraqis intended to launch an Al-Ta'ir satellite with the help of such a launch vehicle. The Iraqis therefore pursued a LV with stages based on Scud missiles and the S-75 Dvina. However only the first stage could be tested on December 1989 and according to General Ra'ad the next stages could not be developed. General Ra'ad says that not even the drawings of the second and third stage vehicles are available and that no final report could be produced. UN inspectors and U.S intelligence did not offer many details regarding the Al-Abid launch vehicle as they were not interested in it.
  • 393
  • 29 Nov 2022
Topic Review
Alger-Class Cruiser
The Alger class comprised three protected cruisers of the French Navy built in the late 1880s and early 1890s; the three ships were Alger, Isly, and Jean Bart. They were ordered as part of a fleet program that accorded with the theories of the Jeune École, which proposed a fleet based on cruisers and torpedo boats to defend France. The Alger-class cruisers were intended to serve a long-range commerce raiders to attack enemy merchant shipping. The ships were armed with a main battery of four 164 mm (6.5 in) guns supported by six 138 mm (5.4 in) guns and they had a top speed of 19 to 19.5 knots (35.2 to 36.1 km/h; 21.9 to 22.4 mph). After entering service, Alger and Isly were assigned to the Northern Squadron, while Jean Bart operated with the Mediterranean Squadron until 1895, when she, too, joined the Northern Squadron. That year, Alger and Isly were sent to French Indochina, and they were followed by Jean Bart followed in 1898. By that time, Alger had returned to France to serve in the Mediterranean. Jean Bart was present in the Far East during the Boxer Uprising in Qing China the following year, by which time Isly had been transferred to the North Atlantic station. Alger embarked on a second tour in East Asia in the mid-1900s, though records of when she left France are unclear. Jean Bart was wrecked off the coast of the Western Sahara in 1907 and could not be refloated. Isly was converted into a depot ship in 1909 and Alger was hulked in 1911; the former was sold to ship breakers in 1914, but Alger remained in the French Navy's inventory until 1939.
  • 471
  • 05 Dec 2022
Topic Review
AMC 34
The AMC 34 was a French tank built originally for the French Army cavalry units. Its production was cut short, and the few vehicles produced were out of service by the time of the Battle of France in the Second World War.
  • 461
  • 04 Nov 2022
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