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AAC SeaStar
The AAC SeaStar is an amphibious biplane that was produced in kitplane form. The aircraft is built largely of composite materials and features wings that may be easily removed for transport, and a ballistic recovery system in the form of a parachute that can be deployed from the engine nacelle.Downey, Julia: ''1999 Kit Aircraft Directory'', Kitplanes, Volume 15, Number 12, December 1998, page 30. Primedia Publications. ISSN 0891-1851 AAC also marketed a Super Pétrel model in 2011.Vandermeullen, Richard: ''2011 Kit Aircraft Buyer's Guide'', Kitplanes, Volume 28, Number 12, December 2011, page 43. Belvoir Publications. ISSN 0891-1851 This aircraft should not be confused with another composite-built small flying boat with the same name, the SeaStar Aircraft SeaStar. Specifications (SeaStar) See also References {{DEFAULTSORT:Aac Seastar SeaStar Starfish or sea stars are Star polygon, star-shaped echinoderms belonging to the class (biology), class Asteroidea () ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SeaStar Aircraft SeaStar
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (). Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea. About 1,900 species of starfish live on the seabed in all the world's oceans, from warm, tropical zones to frigid, polar regions. They are found from the intertidal zone down to abyssal depths, at below the surface. Starfish are marine invertebrates. They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube feet operated by a hydraulic system and a mouth at the centre of the oral or lower surface. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biplanes
A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a biplane wing structure has a structural advantage over a monoplane, it produces more drag than a monoplane wing. Improved structural techniques, better materials and higher speeds made the biplane configuration obsolete for most purposes by the late 1930s. Biplanes offer several advantages over conventional cantilever monoplane designs: they permit lighter wing structures, low wing loading and smaller span for a given wing area. However, interference between the airflow over each wing increases drag substantially, and biplanes generally need extensive bracing, which causes additional drag. Biplanes are distinguished from tandem wing arrangements, where the wings are placed forward and aft, instead of above and below. The term is also o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibious Aircraft
An amphibious aircraft or amphibian is an aircraft (typically fixed-wing) that can take off and land on both solid ground and water, though amphibious helicopters do exist as well. Fixed-wing amphibious aircraft are seaplanes ( flying boats and floatplanes) which are equipped with retractable wheels, at the expense of extra weight and complexity, plus diminished range and fuel economy compared to planes designed specifically for land-only or water-only operation. Some amphibians are fitted with reinforced keels which act as skis, allowing them to land on snow or ice with their wheels up. Design Floatplanes often have floats that are interchangeable with wheeled landing gear (thereby producing a conventional land-based aircraft). However, in cases where this is not practical, amphibious floatplanes, such as the amphibious version of the DHC Otter, incorporate retractable wheels within their floats. Many amphibian aircraft are of the flying boat type. These aircraft, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2000s Canadian Civil Utility Aircraft
S, or s, is the nineteenth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''ess'' (pronounced ), plural ''esses''. History Origin Northwest Semitic šîn represented a voiceless postalveolar fricative (as in 'ip'). It originated most likely as a pictogram of a tooth () and represented the phoneme via the acrophonic principle. Ancient Greek did not have a phoneme, so the derived Greek letter sigma () came to represent the voiceless alveolar sibilant . While the letter shape Σ continues Phoenician ''šîn'', its name ''sigma'' is taken from the letter ''samekh'', while the shape and position of ''samekh'' but name of ''šîn'' is continued in the '' xi''. Within Greek, the name of ''sigma'' was influenced by its association with the Greek word (earlier ) "to hiss". The original name of the letter "sigma" may have been ''san'', but due to the complica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibian Airplanes Of Canada Aircraft
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Progressive Aerodyne SeaRey
The Progressive Aerodyne SeaRey is an American two-seat, single-engine, amphibious flying boat designed and manufactured by Progressive Aerodyne originally in Orlando, Florida, and now in Tavares, Florida. It was first flown in November 1992 and is sold as a kit aircraft for amateur construction as well as a light-sport aircraft.Vandermeullen, Richard: ''2012 Kit Aircraft Buyer's Guide'', Kitplanes, Volume 28, Number 12, December 2011, p. 66 Belvoir Publications. ISSN 0891-1851Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011–12'', p. 70. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XPurdy, Don: ''AeroCrafter – Homebuilt Aircraft Sourcebook, Fifth Edition'', p. 225. BAI Communications, 15 July 1998. Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015–16'', p. 70. Flying Pages Europe SARL, 2015. Development Development of the aircraft that became the SeaRey began in the 1970s with the introduction of the Advanced Av ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concept Composites MD03 Transat
The Concept Composites MD03 Transat is a French amphibious flying boat ultralight and light-sport aircraft that was designed and produced by Concept Composites of Pouancé. The aircraft is supplied as a complete ready-to-fly-aircraft.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 38. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 40. Flying Pages Europe SARL, 2015. Design and development The Transat was designed to comply with both French microlight and US light-sport aircraft rules. It features a biplane layout with two seats in side-by-side configuration within an enclosed cockpit, fixed conventional landing gear and a single engine in pusher configuration. The aircraft fuselage is made from composites, with its flying surfaces covered in doped aircraft fabric. Its span wing has an area of . The standard powerplant is a BMW 1100RS fuel injec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EDRA Aeronautica Super Pétrel
The Scoda Aeronáutica Super Pétrel is an amphibious pusher configuration biplane, seating two side-by-side, first brought into production in Brazil in 2002 by EDRA Aeronáutica, although the original design had French parentage. Production in 2011 offered kit and flyaway forms. Since 2014, the Super Petrel LS has been manufactured bScoda Aeronáuticaof Ipeúna, São Paulo, Brazil. Design and development The design of the Super Petrel has its origins in the Tisserand Hydroplum, a single-seat, wooden amphibian intended for kit building first flown in 1983 and its two-seat, Rotax 532-powered development, the Hydroplum II, in 1986. The Société Morbihannaise d'Aéro Navigation (SMAN) acquired production rights to the latter in 1987, marketing it as the Pétrel, and passed them on to Billie Marine when SMAN ceased trading. In 2002 the Super Petrel 100 was developed by Edra Aeronautica. Since 2014 the design was being produced by Scoda Aeronáutica of Ipeúna, São Paulo, Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four Stroke
A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed: #Intake: Also known as induction or suction. This stroke of the piston begins at top dead center (T.D.C.) and ends at bottom dead center (B.D.C.). In this stroke the intake valve must be in the open position while the piston pulls an air-fuel mixture into the cylinder by producing vacuum pressure into the cylinder through its downward motion. The piston is moving down as air is being sucked in by the downward motion against the piston. #Compression: This stroke begins at B.D.C, or just at the end of the suction stroke, and ends at T.D.C. In this stroke the piston compresses the air-fuel mixture in preparation for ignition during the power stroke (below). Both the intake and exhaust valves are clos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horizontally Opposed
A flat engine is a piston engine where the cylinders are located on either side of a central crankshaft. Flat engines are also known as horizontally opposed engines, however this is distinct from the less common opposed-piston engine design, whereby each cylinder has two pistons sharing a central combustion chamber. The most common configuration of flat engines is the boxer engine configuration, in which the pistons of each opposed pair of cylinders move inwards and outwards at the same time. The other configuration is effectively a V engine with a 180-degree angle between the cylinder banks; in this configuration each pair of cylinders shares a single crankpin, so that as one piston moves inward, the other moves outward. The first flat engine was built in 1897 by Karl Benz. Flat engines have been used in aviation, motorcycle and automobile applications. They are now less common in cars than straight engines (for engines with less than six cylinders) and V engines (for engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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