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Coax-P
The Coax-P is a contra-rotating propeller developed by NeuraJet of Senftenbach, Austria and Sun Flightcraft of Innsbruck, Austria for the Rotax 503 and Rotax 582 aircraft engines for use on ultralight aircraft.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 70. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X Design and development The Coax-P was designed by Hans Neudorfer of NeuraJet and Herbert Hofbauer of Sun Flightcraft. The propeller increases thrust by 15-20% over single propellers and reduces noise levels, especially low frequency noise, while eliminating torque effects. The propeller system was designed for ultralight trikes and powered parachutes. The latter are especially sensitive to torque effects and the propeller design addresses that issue. The design has two propellers, each with two composite, ground adjustable blades and uses a 3.7:1 gear box type reduction drive. The two propellers are powered by two meshing and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contra-rotating Propeller
Aircraft equipped with contra-rotating propellers, also referred to as CRP, coaxial contra-rotating propellers, or high-speed propellers, apply the maximum power of usually a single piston or turboprop engine to drive a pair of coaxial propellers in contra-rotation. Two propellers are arranged one behind the other, and power is transferred from the engine via a planetary gear or spur gear transmission. Contra-rotating propellers are also known as counter-rotating propellers, although counter-rotating propellers is much more widely used when referring to airscrews on separate non-coaxial shafts turning in opposite directions. Operation When airspeed is low, the mass of the air flowing through the propeller disk (thrust) causes a significant amount of tangential or rotational air flow to be created by the spinning blades. The energy of this tangential air flow is wasted in a single-propeller design, and causes handling problems at low speed as the air strikes the vertical stabil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun Flightcraft Air-Chopper
The Sun Flightcraft Air-Chopper is an Austrian powered parachute that was designed by Herbert Hofbauer and produced by Sun Flightcraft of Innsbruck. Now out of production, when it was available the aircraft was supplied complete and ready-to-fly.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 87. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X The aircraft was introduced before 2003 and production ended in about 2008 when the model was discontinued. The company no longer manufactures powered parachutes. Design and development The Air-Chopper was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of . The aircraft has a maximum gross weight of . It employs a Cruiser 26 Elan rectangular canopy or, optionally, a Chiron Sycon-Aircraft elliptical parachute-style wing. Features include two-seats-in-tandem accommodation with dual throttles, tricycle land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NeuraJet
NeuraJet was an Austrian aircraft manufacturer based in Senftenbach and founded by Hans Neudorfer. The company employees were Neudorfer & Annemarie Humer. It specialized in the design and manufacture of paramotors in the form of ready-to-fly aircraft for the US FAR 103 Ultralight Vehicles rules and the European microlight category.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 70. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X The company was founded in January 2002 and seems to have gone out of business in 2006. Neudorfer is a professional electrical engineer who holds 15 patents. He previously founded Neura Electronics Heat Pumps and sold that company in 2001 to concentrate on paramotor design. Neudorfer personally designed and assembled each paramotor built by the company. Neudorfer, along with Herbert Hofbauer of Sun Flightcraft, developed the Coax-P, a contra-rotating propeller system for the Rotax 503 and Rotax 582 engine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun Flightcraft
Sun Flightcraft (formally Pro-Design & Sun Flightcraft) is a former Austrian aircraft manufacturer based in Innsbruck, founded by Herbert Hofbauer. The company at one time specialized in the design and manufacture of powered parachutes in the form of ready-to-fly aircraft for the European Fédération Aéronautique Internationale microlight category.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 87. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X Founded in the early 2000s as a division of Hofbauer GmbH, the company stopped production of its powered parachute design, the Sun Flightcraft Air-Chopper, in about 2008, although it still supplies parts for the design. The Air-Chopper was noted for its innovative use of the contra-rotating Coax-P aircraft propeller design to eliminate torque effects. The company continues as an aircraft importer for Airborne Windsports ultralight trikes from Australia as well as a dealer for the Aeropr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senftenbach
Senftenbach is a community in Upper Austria in the district of Ried im Innkreis Ried im Innkreis (Central Bavarian: ''Riad'') is a town in the Austrian state of Upper Austria, approximately west of Linz and north of Salzburg. It is the capital of the district of Ried im Innkreis, and it serves as the administrative centre f .... Geography Senftenbach lies 414 meters above sea level. North to south, it is 3.3 km. From east to west, it is 5 km. The total area is 9.8 km². 19.4% of the area is wooded, while 73.5% of it is used for agriculture. The meaning of the name ''Senftenbach'' is "gentle brook", referring to Senftenbach Brook. References {{authority control Cities and towns in Ried im Innkreis District ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austria
Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous city and state. A landlocked country, Austria is bordered by Germany to the northwest, the Czech Republic to the north, Slovakia to the northeast, Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the west. The country occupies an area of and has a population of 9 million. Austria emerged from the remnants of the Eastern and Hungarian March at the end of the first millennium. Originally a margraviate of Bavaria, it developed into a duchy of the Holy Roman Empire in 1156 and was later made an archduchy in 1453. In the 16th century, Vienna began serving as the empire's administrative capital and Austria thus became the heartland of the Habsburg monarchy. After the dissolution of the H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Innsbruck
Innsbruck (; bar, Innschbruck, label=Bavarian language, Austro-Bavarian ) is the capital of Tyrol (state), Tyrol and the List of cities and towns in Austria, fifth-largest city in Austria. On the Inn (river), River Inn, at its junction with the Wipptal, Wipp Valley, which provides access to the Brenner Pass to the south, it had a population of 132,493 in 2018. In the broad valley between high mountains, the so-called North Chain in the Karwendel Alps (Hafelekarspitze, ) to the north and Patscherkofel () and Serles () to the south, Innsbruck is an internationally renowned winter sports centre; it hosted the 1964 Winter Olympics, 1964 and 1976 Winter Olympics as well as the 1984 Winter Paralympics, 1984 and 1988 Winter Paralympics. It also hosted the first 2012 Winter Youth Olympics, Winter Youth Olympics in 2012. The name means "bridge over the Inn". History Antiquity The earliest traces suggest initial inhabitation in the early Stone Age. Surviving Ancient Rome, pre-Roman pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotax 503
The Rotax 503 is a , inline 2-cylinder, two-stroke aircraft engine, built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.Raisner, William: ''LEAF catlog'', pages 6-105. Leading Edge Airfoils, 1995. As of 2011 the Rotax 503 is no longer in production. Design and development The Rotax 503 is piston ported with air-cooled cylinders and heads, utilizing either an engine driven fan and cowl, or free air cooling. Lubrication is either by use of pre-mixed fuel and oil or oil injection from an externally mounted oil tank. The 503 has dual independent breakerless, magneto capacitor-discharge ignition (CDI) systems. It can be equipped with either one or two piston-type carburetors. It uses a manifold-driven pneumatic fuel pump to provide fuel pressure. An optional High Altitude Compensation kit is available. The engine's propeller drive is via a Rotax type B, C, or E style gearbox. The standard engine includes a muffler exhaust system with an extra after-muf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotax 582
The Rotax 582 is a two-stroke, two-cylinder, rotary intake valve, oil-in-fuel or oil injection pump, liquid-cooled, gear reduction-drive aircraft engine manufactured by BRP-Rotax GmbH & Co. KG. It is for use in non-certified aircraft operating in day visual flight rules. Production of the engine ended at the end of 2021. Development The Rotax 582 is based upon the earlier Rotax 532 engine design and was designed for ultralight aircraft.Raisner, William: ''LEAF catalog'', pages 6-105. Leading Edge Airfoils, 1995. The 582 increased the bore from the 532 engine's . This increased the displacement from to , an increase of 11%. The increased displacement had the effect of flattening out the 532's torque curve and allowed the 582 to produce useful power over a wider rpm range. Reliability over the 532 was also improved. The 582 features liquid-cooled cylinder heads and cylinders with a rotary intake valve. Cooling is via an externally mounted radiator. Lubrication is either by use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Engine
An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many small UAVs have used electric motors. Manufacturing industry In commercial aviation the major Western manufacturers of turbofan engines are Pratt & Whitney (a subsidiary of Raytheon Technologies), General Electric, Rolls-Royce, and CFM International (a joint venture of Safran Aircraft Engines and General Electric). Russian manufacturers include the United Engine Corporation, Aviadvigatel and Klimov. Aeroengine Corporation of China was formed in 2016 with the merger of several smaller companies. The largest manufacturer of turboprop engines for general aviation is Pratt & Whitney. General Electric announced in 2015 entrance into the market. Development history * 1848: John Stringfellow made a steam engine for a 10-foot wingspan mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultralight Aircraft
Ultralight aviation (called microlight aviation in some countries) is the flying of lightweight, 1- or 2-seat fixed-wing aircraft. Some countries differentiate between weight-shift control and conventional three-axis control aircraft with ailerons, elevator and rudder, calling the former "microlight" and the latter "ultralight". During the late 1970s and early 1980s, mostly stimulated by the hang gliding movement, many people sought affordable powered flight. As a result, many aviation authorities set up definitions of lightweight, slow-flying aeroplanes that could be subject to minimum regulations. The resulting aeroplanes are commonly called "ultralight aircraft" or "microlights", although the weight and speed limits differ from country to country. In Europe, the sporting (FAI) definition limits the maximum stalling speed to and the maximum take-off weight to , or if a ballistic parachute is installed. The definition means that the aircraft has a slow landing speed and short ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultralight Trikes
An ultralight trike is a type of powered hang glider where flight control is by weight-shift. These aircraft have a fabric flex-wing from which is suspended a tricycle fuselage pod driven by a pusher propeller. The pod accommodates either a solo pilot, or a pilot and a single passenger. Trikes grant affordable, accessible, and exciting flying, and have been popular since the 1980s. Trikes are classified as microlights in Europe, and as light-sport aircraft in the United States. The aircraft are also known by other names, including 2-axis microlights, flex-wing trikes, microlight trikes, deltatrikes or motorized deltaplanes. In the United States, they are formally recognized by the Federal Aviation Administration (FAA) as weight-shift-control aircraft. History ] The history of the trike is traced back to the invention of Francis Rogallo's flexible wing and subsequent development by the Paresev engineering team's innovations and then others. On 1948, engineer Franci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
