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Backpack Helicopter
A backpack helicopter is a helicopter motor and rotor and controls assembly that can be strapped to a person's back, so they can walk about on the ground wearing it, and can use it to fly. It uses a harness like a parachute harness and should have a strap between the legs (so the pilot does not fall out of the harness during flight). Some designs may use a ducted fan design to increase upward thrust. Several inventors have tried to make backpack helicopters, with mixed results. Typically, a backpack helicopter differs from a conventional helicopter in two main ways: First, there is no tail rotor, and the main rotors are contra-rotating. Yaw is controlled by fine adjustment of a differential gear in the rotor drive transmission. When one rotor is adjusted to spin slightly faster than the other, it induces yaw (turning motion). Second, the rotors are fixed pitch, which assists with simplicity; this means, however, that in the event of engine failure autorotation is impossible. Usu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentecost Backpack Helicopter
Pentecost (also called Whit Sunday, Whitsunday or Whitsun) is a Christian holiday which takes place on the 50th day (the seventh Sunday) after Easter Sunday. It commemorates the descent of the Holy Spirit upon the Apostles and other followers of Jesus Christ while they were in Jerusalem celebrating the Feast of Weeks, as described in the Acts of the Apostles (Acts 2:1–31). In Western Christianity, Pentecost is celebrated on the 50th day (the seventh Sunday) after Easter Sunday. In the United Kingdom, traditionally the next day, Whit Monday, was (until 1970) also a public holiday. (Since 1971, by statute, the last Monday in May has been a Bank Holiday). The Monday after Pentecost is a legal holiday in many European countries. In Eastern Christianity, Pentecost can also refer to the entire fifty days of Easter through Pentecost inclusive; hence the book containing the liturgical texts is called the "'' Pentecostarion''". Since its date depends on the date of Easter, Pentecost i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Military Aircraft Of Germany By Manufacturer
This is a list of German military aircraft organised alphabetically by manufacturer. AEG (''Allgemeine Elektricitäts-Gesellschaft'') * AEG B.I - reconnaissanceGray, 1970, p.232 * AEG B.II - reconnaissance * AEG B.III - reconnaissance * AEG C.I - reconnaissance * AEG C.II - reconnaissanceGray, 1970, p.234 * AEG C.III - reconnaissance * AEG C.IV - reconnaissance * AEG C.IVN - night bomberGray, 1970, p.235 * AEG C.V - reconnaissance * AEG C.VI - reconnaissance * AEG C.VII - reconnaissance * AEG C.VIII - reconnaissanceGray, 1970, p.237 * AEG C.VIII Dr - reconnaissance triplane * AEG D.I - fighter * AEG DJ.I - armoured ground attack fighter * AEG Dr.I - triplane fighter * AEG G.I/K.I - bomberGray, 1970, p.241 * AEG G.II - bomber * AEG G.III - bomber * AEG G.IV - bomber * AEG G.V - bomberGray, 1970, p.244 * AEG J.I - ground attack aircraftGrey, 1970, pp.9-12 * AEG J.II - ground attack aircraft * AEG N.I - night bomber * AEG PE - armoured triplane ground attack fighter * AEG ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Configurations
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Common examples of aircraft include airplanes, helicopters, airships (including blimps), gliders, paramotors, and hot air balloons. The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called ''aeronautics.'' Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, aircraft propulsion, usage and others. History Flying model craft and stories of manned flight go back many centuries; however, the first manned ascent — and safe descent — in modern times took place by larger hot-air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiller ROE-1
The Hiller ROE Rotorcycle was a single-seat ultralight helicopter designed in 1953 for a military requirement. A total of 12 were produced for the United States Marine Corps. And in 1954, the Hiller Helicopters was selected by the US Navy's Bureau of Aeronautics to build this design of a one-man, foldable, self-rescue and observation helicopter.Hiller Museum: ''Rotocycle'' It featured a two-blade rotor system. Its original empty weight was .Apostolo, p. 68 Development The helicopter folded up and could be carried on a sled-like carrier by two people or could be air-dropped to pilots trapped behind enemy lines. The Marines did not accept the YROE due to its low performance, vulnerabil ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyrodyne RON Rotorcycle
The Gyrodyne RON Rotorcycle (originally designated HOG) was a tiny, single-seat helicopter designed under contract for the United States Navy. in the mid-1950s. It later was redesigned for a U.S. Marine Corps requirement for a small personal helicopter that would fulfill a number of roles, including observation, liaison, small unit tactical maneuvers, and which could be dropped to downed airmen behind enemy lines to facilitate their escape. Development Gyrodyne purchased the assets of Bendix Helicopters in 1949, including the Model 2C coaxial helicopter which provided the technology for the XRON-1. In 1951 the Model 2C was demonstrated to the Navy with shortcomings noted in autorotation control. The XRON-I was demonstrated under a new Navy contract NOas 55-388-c for a lightweight single man helicopter. Design Gyrodyne's design was an open-framework helicopter with coaxial rotors, which was evaluated with three different power plants (two reciprocating, one turbine). The XRON-1 ... [...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] |
Hovercar
A hover car is a personal vehicle that flies at a constant altitude of up to few meters (some feet) above the ground and used for personal transportation in the same way a modern automobile is employed. The concept usually appears in science fiction. In science fiction, it is capable of elevating itself some distance from the ground through some repulsion technology, presumably exploiting some short range anti-gravity principle so as to eliminate most friction forces which act against conventional vehicles. Other works feature vehicles that hover by having magnetic plates lined along roads, operating in a similar principle to Maglev. The capability of hovering above the ground eliminates the need for tires, and unlike an air-cushion vehicle, it does not produce a dust cloud. The closest devices are the hovercraft, which elevates itself above a water or level hard surface using a cushion of air retained by a flexible skirt, and the hovertrain, which is a type of high-speed train ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Pack
A jet pack, rocket belt, or rocket pack is a device worn on the back which uses jets of gas or liquid to propel the wearer through the air. The concept has been present in science fiction for almost a century and became widespread in the 1960s. Real jet packs have been developed using a variety of mechanisms, but their uses are much more limited than their fictional counterparts because of the challenges of the Earth's atmosphere, gravity, the low energy density of utilisable fuels, and the human body not being suited to flight, and they are principally used for stunts. A practical use for the jet pack has been in extra-vehicular activities for astronauts because of the apparent weightlessness and lack of friction-creating atmosphere in orbit. The term jet suit is used for a system incorporating a jet pack and associated jets attached to the arms to increase manoeuvrability (e.g. the Daedalus Flight Pack). Overview In the most general terms, a jet pack is a wearable device which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baumgärtl Heliofly III
__NOTOC__ The Baumgärtl Heliofly III/57 and Baumgärtl Heliofly III/59 were 1940s experimental backpack helicopter A backpack helicopter is a helicopter motor and rotor and controls assembly that can be strapped to a person's back, so they can walk about on the ground wearing it, and can use it to fly. It uses a harness like a parachute harness and should hav ...s designed and built by the Austrian-designer Paul Bäumgartl. Following on from his earlier experiments with strap-on autogyros the Heliofly III/57 was powered by two Argus As 8 piston engines each driving a single-blade of the contra-rotating rotors.Nowarra, Heinz J.. ''Die Deutsche Luftruestung 1933-1945 - Vol.1 - AEG-Dornier''. Bernard & Graefe Verlag. 1993. Koblenz. (Gesamtwek), (Band 1) A problem with the supply of the As 8 engine forced a re-design to use one engine, powering two rotors on a common co-axial shaft, with the engine driving one rotor directly and the other through gearing to overcome the torq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Jetpack
The Martin Jetpack was a single-person aircraft under development. Despite its name, it did not use a jet pack as such, but ducted fans for lift. Martin Aircraft Company of New Zealand (not related to Glenn L. Martin Company, the US company also known as Martin Aircraft) developed it, and they unveiled it at the Experimental Aircraft Association's 2008 AirVenture in Oshkosh, Wisconsin, US. The US Federal Aviation Administration classified it as an experimental ultralight airplane. It used a gasoline (petrol) engine with two ducted fans to provide lift. It was specified to have a maximum speed of , a flight ceiling of , a range of and endurance of about 28 minutes flight. Empty weight was . Martin Aircraft initially planned to target first responders as customers. In 2019, the company closed. History The Martin Jetpack was under development for over 30 years. Glenn Neal Martin (not to be confused with Glenn L. Martin, of ''US'' Martin Aircraft) started work on it in his Chris ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SoloTrek XFV
The SoloTrek XFV (Exo-skeletal Flying Vehicle) was a single-person VTOL aircraft. It was first flown in December 2001 by Millennium Jet Inc, a private company run by Michael Moshier. Millennium Jet subsequently changed its name to Trek Aerospace Inc. The SoloTrek pilot maintained a standing position and was propelled by two ducted fans located above and on either side of the user, leading some to class it as a type of backpack helicopter. It ran for around 2 hours on gasoline fuel. According to Michael Moshier, its inventor and designer, SoloTrek was capable of hovering for up to two hours, flying at 100 km/h and travelling more than 200 km. One such model is featured in the movie ''Agent Cody Banks'', though it is shown to be 'flying' only by the use of special effects. Early renderings of the SoloTrek were produced by Marc Ericksen, a Silicon Valley commercial artist and illustrator. Michael Moshier had commissioned Mark Ericksen to produce these renderings to help ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tecnologia Aeroespacial Mexicana
Tecnologia is a rugby team based in Lisbon, Portugal. As of the 2012/13 season, they play in the Second Division of the Campeonato Nacional de Rugby (National Championship). The team is the official rugby team of the Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa at the Universidade Nova de Lisboa NOVA University Lisbon ( pt, Universidade NOVA de Lisboa, ), or just NOVA, is a Portuguese public university whose rectorate is located in Campolide, Lisbon. Founded in 1973, it is the newest of the public universities in the Portuguese capital c .... Rugby union teams in Portugal {{portugal-sport-team-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
