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Niki Lightning
The Niki Lightning is a fully enclosed two-seater tricycle autogyro of composite construction, designed and built by Niki Rotor Aviation in Bulgaria. It was introduced in 2009 Design and development The Lightning's cockpit pod accommodates a pilot and passenger in tandem. The main rotor is two-bladed, with a pre-rotator. Unconventionally the tail boom is mounted though the centre of the propeller shaft.Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 196. Flying Pages Europe SARL, 2015. The boom may be unbolted and removed to aid access to the engine and prop. There is a choice of two very compact D-Motor engines (both liquid-cooled horizontally-opposed side-valve four-strokes): either the 4-cylinder LF26 or the 6-cylinder LF39. The engine is sited behind the cockpit, driving a 3- or 4-bladed ground-adjustable pusher propeller which is coaxial with the tail boom. The D-Motor engines are direct-drive units redlined at 3,000 rpm. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autogyro
An autogyro (from Greek and , "self-turning"), also known as a ''gyroplane'', is a type of rotorcraft that uses an unpowered rotor in free autorotation to develop lift. Forward thrust is provided independently, by an engine-driven propeller. While similar to a helicopter rotor in appearance, the autogyro's rotor must have air flowing across the rotor disc to generate rotation, and the air flows upwards through the rotor disc rather than down. The autogyro was invented by Spanish engineer Juan de la Cierva in an attempt to create an aircraft that could fly safely at low speeds. He first flew one on 9 January 1923, at Cuatro Vientos Airfield in Madrid. The aircraft resembled the fixed-wing aircraft of the day, with a front-mounted engine and propeller. Cierva's autogyro is considered the predecessor of the modern helicopter. The success of the autogyro garnered the interest of industrialists and under license from Cierva in the 1920s and 1930s, the Pitcairn & Kellett compan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-Motor LF26
The D-Motor LF26 is a lightweight liquid cooled side-valve four-stroke flat four, 2.7 litre petrol aircraft engine, produced by D-Motor in Deerlijk, Belgium. Design and development This direct-drive aero-engine is unusual in two respects: it is very oversquare with a bore:stroke ratio of 1.295:1, and it has a side-valve (flathead) valvetrain. The designer determined that since maximum continuous power output (65.3 kW) was to be developed at only 2800 rpm, the extra weight and complexity of overhead valves (OHV) would be superfluous. The resulting engine is compact and lightweight, with a dry weight of , and a maximum power-to-weight ratio of 1.09 kW/kg (wet; coolant fluids weigh ). The engine has port injection, a dry sump lubrication system, and dual ignition. Variants With the aid of funding from the Belgian government, D-Motor has developed a derivative 4-litre flat-six engine, the D-Motor LF39, which is claimed to produce and to have dry weight of . Applicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niki Rotor Aircraft
__NOTOC__ Niki may refer to: People * Niki (given name) * NIKI (singer), Indonesian singer and songwriter * Niki DeMar, American singer * Niki Etsuko (1928–1986), Japanese author of mystery fiction Places * Niki, Hokkaido, a town in Japan * Niki, Greece, a village in Greece Other uses * Niki (airline), formerly a passenger airline based at Vienna Airport in Austria, which ceased trading in 2017 * Operation Niki, a Greek airlift operation during the Turkish invasion of Cyprus in 1974 * Niki Rotor Aviation, a Bulgarian aircraft manufacturer * , a Greek cargo ship in service 1920-37 * Niki and Gabi, an American singing duo * Niki and the Dove, a Swedish indietronica group * niki.ai, an Indian ecommerce platform See also * Nike (other) * Nikki (other) * Nicki (other) Nicki is a given name, and may refer to: Film and television * Nicki Aycox (1975-2022), American actress best known for her roles as Syl on the series ''Dark Angel'' and Stella Vesse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sport Copter Lightning
The Sport Copter Lightning is an American autogyro, designed and produced by Sport Copter of Scappoose, Oregon. The aircraft is supplied as a kit for amateur construction.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page F-4. Cybair Limited Publishing, 2001. Downey, Julia: ''2005 Trikes 'Chutes and Rotorcraft Directory'', Kitplanes, Volume 22, Number 2, February 2005, page 58. Belvoir Publications. ISSN 0891-1851Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 209. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485XBayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 187. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X Design and development The base model Lightning was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of . The aircraft has a standard empty weight of . It features a single main rotor, a single-seat open c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RotorSport UK Calidus
The RotorSport Calidus is a German tandem two-seater autogyro modified in the UK to meet British Civil Airworthiness Requirements CAP643 Section T. The Calidus is an enclosed-cockpit development of the open-cockpit RotorSport UK MT-03. New-build AutoGyro Calidus aircraft are imported from the manufacturers, AutoGyro GmbH in Hildeshem, Germany and completed to British regulations by RotorSport UK Ltd. Design and development The Calidus is powered by a Rotax 912 ULS, although optionally a Rotax 914 UL Turbo can be fitted. Fuel capacity is either 39 litres in a single tank or 74 litres in two tanks. The Calidus has an aerodynamic fuselage pod, giving 20 knots higher maximum speed than the MT-03. While the open-cockpit MT-03 (which continues in production) is promoted as a "motorbike in the skies", the Calidus is aimed at a different market. The Calidus' fully enclosed cockpit protects the occupants from exposure to inclement weather, while the aircraft's higher cruise speed makes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AutoGyro Calidus
The AutoGyro Calidus is a German autogyro, designed and produced by AutoGyro GmbH of Hildesheim. 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 176. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X The Calidus was approved in the United Kingdom in 2010 in a modified form as the RotorSport UK Calidus. Design and development The Calidus features a single main rotor, a two-seats in tandem enclosed cockpit with a complete aerodynamic cockpit fairing, tricycle landing gear with wheel pants and a four-cylinder, air and liquid-cooled, four-stroke, dual-ignition Rotax 912 engine or turbocharged Rotax 914 engine in pusher configuration. The aircraft fuselage is made from composites and is a faired teardrop shape to ensure smooth airflow over the variable pitch pusher propeller. Its diameter rotor has a chord of . The aircraft has an empty weight of and a gross weight of , givin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avgas
Avgas (aviation gasoline, also known as aviation spirit in the UK) is an aviation fuel used in aircraft with spark-ignited internal combustion engines. ''Avgas'' is distinguished from conventional gasoline (petrol) used in motor vehicles, which is termed ''mogas'' (motor gasoline) in an aviation context. Unlike motor gasoline, which has been formulated since the 1970s to allow the use of platinum-content catalytic converters for pollution reduction, the most commonly used grades of avgas still contain tetraethyllead (TEL), a toxic substance used to prevent engine knocking (premature detonation). There are ongoing experiments aimed at eventually reducing or eliminating the use of TEL in aviation gasoline. Kerosene-based jet fuel is formulated to suit the requirements of turbine engines which have no octane requirement and operate over a much wider flight envelope than piston engines. Kerosene is also used by most diesel piston engines developed for aviation use, such as tho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pusher Configuration
In an aircraft with a pusher configuration (as opposed to a tractor configuration), the propeller(s) are mounted behind their respective engine(s). Since a pusher propeller is mounted behind the engine, the drive shaft is in compression in normal operation. Pusher configuration describes this specific (propeller or ducted fan) thrust device attached to a craft, either aerostat (airship) or aerodyne (aircraft, WIG, paramotor, rotorcraft) or others types such as hovercraft, airboat and propeller-driven snowmobiles. "Pusher configuration" also describes the layout of a fixed-wing aircraft in which the thrust device has a pusher configuration. This kind of aircraft is commonly called a pusher. Pushers have been designed and built in many different layouts, some of them quite radical. History The rubber-powered "Planophore", designed by Alphonse Pénaud in 1871, was an early successful model aircraft with a pusher propeller. Many early aircraft (especially biplanes) were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground-adjustable Propeller
A ground-adjustable propeller is a simple type of aircraft variable-pitch propeller where the blade angle can be adjusted between pre-set limits of fine and coarse pitch.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 86. Aviation Supplies & Academics, 1997. As its name implies, a ground-adjustable propeller may be adjusted only when the aircraft is on the ground and when the engine is not running. To adjust the propeller, the blades are loosened in the hub, a new angle set and then the hub tightened. Ground-adjustable propellers, which tend to be found on light aircraft and very light aircraft, are much cheaper and lighter in weight than in-flight-adjustable propellers. Although a ground-adjustable propeller is much less versatile than an in-flight-adjustable equivalent, nevertheless, compared to a fixed pitch propeller, a ground-adjustable propeller means that pitch changes can be made on the ground to optimise the aircraft for current payload and fly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-Motor LF39
The D-Motor LF39 is a lightweight Radiator (engine cooling), liquid cooled flathead engine, side-valve four stroke engine, four-stroke flat six engine, flat six 4 litre petrol aircraft engine, produced by D-Motor in Deerlijk, Belgium. It is a derivative of the flat four D-Motor LF26. Design The LF39 produces and has a dry weight of . The power curve is virtually linear from 50 kW @ 1920 rpm to 91.55 kW @ 3100 rpm. Just like its smaller sibling, the LF26, this direct-drive aero-engine has a Flathead engine, side-valve (flathead) valvetrain. The engine has Indirect injection, port injection, a dry sump lubrication system, and dual ignition. Development With the aid of funding from the Belgian government, the D-Motor LF39 was developed from the LF26. The company encountered problems with the casting of the flat-six cylinder block and there were further problems with the flywheel/alternator, but these were solved using a lighter flywheel with neodymium magnets. ... [...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 close ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgaria
Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. Bulgaria covers a territory of , and is the sixteenth-largest country in Europe. Sofia is the nation's capital and largest city; other major cities are Plovdiv, Varna and Burgas. One of the earliest societies in the lands of modern-day Bulgaria was the Neolithic Karanovo culture, which dates back to 6,500 BC. In the 6th to 3rd century BC the region was a battleground for ancient Thracians, Persians, Celts and Macedonians; stability came when the Roman Empire conquered the region in AD 45. After the Roman state splintered, tribal invasions in the region resumed. Around the 6th century, these territories were settled by the early Slavs. The Bulgars, led by Asp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
