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Topic: Rotary-wing aircraft

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Helicopter - Wikipedia, the free encyclopedia Helicopters are classified as rotary-wing aircraft to distinguish them from conventional fixed-wing aircraft. A conventional aircraft is able to fly because the forward motion of its angled wings forces air downwards, creating an opposite reaction called lift that forces the wings upwards. A small, fixed wing aircraft can be stable enough that a pilot can let go of the controls while looking at a map or dealing with a radio, and the plane will generally stay on course. en.wikipedia.org /wiki/Helicopter   (4353 words)

92823.011206&ELEMENT_SET=DECL Rotary wing aircraft can also descend straight down from a hover to land on all sorts of terrain, and need not make a gradual descent and approach to land as in the case of fixed wing aircraft. Rotary wing aircraft and aircraft capable of hover present unique challenges for ground proximity alerting due to the different flight profiles flown and the unique capabilities of rotary wing aircraft. In a fixed wing aircraft, the terrain floor relates to a distance AH below the aircraft and is proportional to the distance to the closest runway to prevent nuisance warnings when the aircraft is taking off and landing, while providing adequate protection in other modes of operation. www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/92823.011206&ELEMENT_SET=DECL   (9198 words)

64942.991216&ELEMENT_SET=DECL To limit the complexity and weight of an unmanned rotary wing aircraft, it is convenient to use existing control channels to navigate the aircraft from one position to a new position. The effect of strong winds on a rotary wing aircraft can result in saturated lateral cyclic pitch or aft longitudinal cyclic pitch, as a consequence of limiting to ensure that the aircraft stays within the safe envelope of commands, which assure aircraft stability. Therein, the true heading of the aircraft on the line 13 is subtracted from the true bearing to the destination on a line 66 in a summer 67, to determine the desired aircraft direction on a line 68, which represents the relative bearing to the destination. www.wipo.int /cgi-pct/guest/getbykey5?KEY=99/64942.991216&ELEMENT_SET=DECL   (5580 words)

Recreation: Aviation: Aircraft - Open Site Rotary wing aircraft such as helicopters and gyrocopters use a spinning rotar to provide forward motion and lift. Fixed wing aircraft are sometimes called rigid wing aircraft because of the stiffness of the wing in comparison to a flex wing aircraft. Flex wing aircraft are most often classified as extreme aircraft and considered to be more risky to navigate. www.open-encyclopedia.info /index.php/Recreation/Aviation/Aircraft   (299 words)

Excessive altitude loss after take-off warning system for rotary wing aircraft - Patent 4818992 If the aircraft begins to descend again, the integrator 20 adds any altitude loss to the altitude loss signal previously accumulated, and causes the comparator 22 to generate the warning initiation signal when the cumulative loss exceeds the maximum loss permitted for the altitude at which the aircraft is flying. This circuitry monitors the airspeed of the aircraft, the position of the landing gear and the altitude of the aircraft in order to determine whether the aircraft is actually in a take-off phase or in a go-around after a missed approach phase. As the aircraft continues to ascend, the integrator 20 integrates the positive barometric rate signal from the barometric rate circuit 14 to thereby reduce the magnitude of the altitude loss signal present at the output of the integrator 20. www.freepatentsonline.com /4818992.html   (3284 words)

Rotary-wing aircraft - Wikipedia, the free encyclopedia A rotary-wing aircraft is a broad category of any aircraft with a moving wing, including helicopters and autogyros. A third type, tilt-wing (or tilt-rotor) aircraft, are a recent development.  This aircraft- or aerospace-related article is a stub. en.wikipedia.org /wiki/Rotary-wing_aircraft   (63 words)

Naval Test Wing Atlantic - Rotary Wing Aircraft Test Squadron DI is used in the development of procedures and envelopes for operating rotary wing aircraft aboard ship and includes: development and/or expansion of launch/recovery and engagement/disengagement wind envelopes, electromagnetic compatibility testing, deck certification and deck strength analyses, and aircraft handling and stowage testing. The Naval Rotary Wing HX-21 Aircraft Test Squadron tests and evaluates all rotary wing aircraft including the H-1, H-3, H-53, H-60, TH-57 and V-22. The Naval Rotary Wing HX-21 Aircraft Test Squadron performs developmental flight testing including aircraft flying qualities, aircraft performance and aircraft systems testing. www.nawcad.navy.mil /testwinglant/rotarywing.cfm   (228 words)

Hub for rotor head of rotary-wing aircraft and rotor head with such hub - US Patent 6200097 The rotor head T for a rotary-wing aircraft, represented in FIGS. The present invention relates to a hub for the rotor head of a rotary-wing aircraft, as well as to a rotor head including such a hub. Hub for rotor head of rotary-wing aircraft and rotor head with such hub www.patentstorm.us /patents/6200097.html   (2268 words)

001255 Mosquito Control Fixed & Rotary Wing Pilot/Mechanic An employee in this class is responsible for piloting rotary-wing aircraft, single-engine or multi-engine aircraft and for ensuring that all equipment is in airworthy condition. A minimum of 2000 hours flight experience in multi-engine aircraft to include 1000 hours in multi-engine, 500 in turbine powered aircraft with 50 in Beechcraft King aircraft flying time is required. Performs maintenance tasks on aircraft as provided by FAA and on application and support equipment; replaces parts and makes repairs on aircraft equipment. www.co.miami-dade.fl.us /emprel/pay_plan/job_001255.htm   (502 words)

Penn College Courses: Rotary Wing Aircraft The study of the theory of flight for rotary wing aircraft and the laws of physics that apply to the operation of helicopters. www.pct.edu /courdesc/avc312.shtml   (70 words)

The Invention Of The Helicopter At the time, fixed-wing aircraft were still very primitive, and some workers in the new field of aviation believed that rotary-wing aircraft were the better bet over the long run. In fact, while fixed-wing aircraft were quickly refined and improved, it wasn't until the mid-1930s that the helicopter began to emerge as a practical flying machine. In 1908, fixed-wing aircraft set a number of records for performance and endurance, and were continuing to improve at a rapid pace. www.faqs.org /docs/air/avheli.html   (7629 words)

Marine Corps Rotary Wing Marine Corps rotary-wing aircraft support the MAGTF in the areas of assault support, offensive air support, and control of aircraft and missiles. The aircraft is capable of lifting 16 tons at sea level, transporting the load 50 nautical miles, and returning. Commonality between aircraft greatly enhances the maintainability and deployability of the systems with both aircraft supported and operated within the same squadron structure. www.fas.org /man/dod-101/navy/docs/vision/Corpsr.htm   (772 words)

Industry Studies - Aircraft After a decade of mergers and downsizing, the industry’s four main sectors—commercial fixed-wing aircraft, military fixed-wing aircraft, rotary-wing aircraft, and jet engines—are entering a head-to-head competition with Europe from a strategically weakened position. After a decade of mergers and downsizing, the industry’s four main sectors—commercial fixed-wing aircraft, military fixed-wing aircraft, rotary-wing aircraft, and jet engines—are entering a head-to-head competition with Europe from a strategically weak position. Nevertheless, U.S. dominance of the global aircraft market has eroded to the point that vigorous action is required by industry and government to preserve this vital element of national power. www.ndu.edu /icaf/industry/2000/aircraft/aircraft.htm   (341 words)

Directory - Business: Aerospace and Defense: Aeronautical: Aircraft and Components: Rotary Wing Rotary wing aircraft are those aircraft for which lift is pricipally generated by one or more aerodynamic wings rotating about one or more fixed points on the aircraft. Kulikov Aircraft Company  · cached · Business and general aviation aircraft capable of vertical take-off and landing. CarterCopter  · iweb · cached · Developing a new high technology gyroplane expected to cruise at 400mph at 50,000 feet using the rotor for vertical takeoff and landing and a wing for high speed cruise. www.incywincy.com /default?p=288260   (524 words)

Nat' Academies Press, The Future of Aerospace (1993) The future of the helicopter is clearly assured, and advanced rotary-wing aircraft, with an additional degree of rotation, are ready to extend the performance and utility of the helicopter. It did not take Al Flax long to discover that rotary-wing aircraft are different from fixed-wing airplanes. This national interest stimulated Igor Sikorsky and the United Aircraft Corporation to develop and fly in December 1941 the VS-300, the first helicopter with a single lifting main rotor and a single tail rotor. www.nap.edu /books/0309048818/html/45.html   (3654 words)

Rotary Aircraft - Military Aircraft Although Army aviation has continued to use some fixed-wing aircraft up to the present, its evolution to its current role and status resulted to a large degree from the development of the helicopter and of rotary-wing tactics and doctrine. During the course of the war, however, organic aviation's small fixed-wing aircraft, commonly known as Grasshoppers, came to be used for command and control (C2), medical evacuation (MEDEVAC), wire laying, courier service, aerial photography, reconnaissance, and other purposes. The invasion of Panama employed the largest number of special operations aircraft (65 helicopters and 20 fixed-wing planes) ever employed by United States forces. www.fas.org /man/dod-101/sys/ac/rotary.htm   (1812 words)

EPA: Federal Register: From the Federal Register Online via GPO Access [wais.access.gpo.gov] Rotary wing aircraft operate at approximately the same speeds as small general aviation aircraft and this contributes to these two types of aircraft operating safely in a VFR environment. Most rotary-wing aircraft arrivals and departures and all pattern work will be done on the north pads while fixed-wing FCLP's are in progress on the 24L runway located to the south side of the air station. For example, the report relies heavily on generalized ratios developed from personnel or aircraft loading and not on specific requirements and thus incorrectly assumes that a high percentage of new construction at MCAS Miramar can be attributed to the inclusion of rotary-wing aircraft. www.epa.gov /fedrgstr/EPA-IMPACT/1996/December/Day-06/pr-17206.html   (10487 words)

Introduction to Helicopter Flight With early fixed-wing aircraft, the propulsion system (the engine and propeller) and the lift device (the wing) were relatively simple and the challenge was developing control systems to keep the aircraft in level flight and to change direction. The solution to this—pitching the rotor blades so that they pushed the aircraft in a certain direction—was difficult to perfect, after all, the control devices themselves were constantly moving at high speed, not affixed to an unmoving wing. Their Fa 61 aircraft used a conventional biplane fuselage, but instead of wings it had two large rotors mounted on outriggers on either side of the aircraft. www.centennialofflight.gov /essay/Rotary/HE-OV.htm   (1732 words)

Hillsborough County Government Online - Civil Service - Job Class Descriptions Pilots multi-engine fixed wing and single engine rotary wing aircraft transporting County personnel in support of inspections, aerial pesticide applications and executive travel to identify and treat target areas for the control of mosquitos and aquatic weeds. Performs duties operating multi-engine fixed wing and single engine rotary wing aircraft and overseeing aircraft operations and maintenance activities to inspect and identify target areas and to apply chemical agents to control mosquitos and aquatic weeds. Considerable knowledge of the operation and performance capabilities of a multi-engine fixed wing and single engine rotary wing aircraft including instrumentation, radio communications and navigation. www.hillsboroughcounty.org /cs/payscales/jobdetail.cfm?jobcode=A4923   (541 words)

jarnotcgscthesis.htm The Air Mech XXI Division would have sufficient rotary-wing aircraft to Air Assault half its combat force in a single lift and to rely entirely on air lines of communication and resupply. They employ aircraft to gain 3-D positional advantage in either Airborne (paradrop), Airland or Air Assault operations, but like their heavy force counterparts, their ultimate goal is closure with the enemy in a close-in direct-fire fight. The study used the development histories of different vehicles and aircraft to gain a better appreciation of what could be expected in performance of equipment that could be available in the year 2010. www.combatreform.com /jarnotcgscthesis.htm   (20546 words)

Penn College Courses: Rotary Wing Aircraft Applications The application of rotary wing aircraft design and the laws of physics that apply to the operation of helicopters. www.pct.edu /courdesc/avc212.shtml   (63 words)

Helicopter Pioneers - Evolution of the Rotary Wing Aircraft Helicopter Pioneers - Evolution of the Rotary Wing Aircraft The technology needed to create a helicopter had not been produced yet but the concept of rotary wing aviation had unquestionably been found. A toy, consisted of feathers at the end of a stick, which was rapidly spun between the hands to generate lift and then released into free flight. www.helis.com /pioneers   (559 words)

US Army Airmobility (1) To relinquish all claims for helicopters and follow-on rotary wing aircraft which are designed and operated for intra-theater movement, fire support, supply, and resupply of Army forces and those Air Force control elements assigned to DASC and subordinate thereto. (2) That, in cases of operational need, the CV-2, CV-7, and C-123 type aircraft performing supply, resupply, or troop-lift functions in the field army area, may be attached to the subordinate tactical echelons of the field army (corps, division, or subordinate commander), as determined by the appropriate joint/unified commander. (3) To retain the CV-2 and CV-7 aircraft in the Air Force structure and to consult with the Chief of Staff, U. Army, prior to changing the force level of, or replacing, these aircraft. ehistory.osu.edu /vietnam/books/airmobility/0106.cfm   (454 words)

rules using "rotary wing aircraft" The rules that use the vocabulary item "rotary wing aircraft" are: www.ai.sri.com /~lesaf/grammar-help-current/grammar-help-army/index-lex-rotary_wing_aircraft.html   (11 words)

ROTARY-WING AIRCRAFT the catapult is fired, allowing the aircraft to be launched Like   the   fuselage   of   a   fixed-wing   aircraft,   the fixed-wing     aircraft     is     that     lift     and     control     are www.tpub.com /content/aviation/14014/css/14014_85.htm   (246 words)

Rotary-wing aircraft Early in the development of rotary-wing aircraft, a Learning Objective: Recognize the construction features of the rotary-wing aircraft The construction of helicopters is similar to the construction of fixed-wing aircraft. www.tpub.com /air/1-12.htm   (196 words)

Structural assembly of part of an aircraft and aircraft, particularly rotary-wing aircraft, comprising such a structural assembly page Structural assembly of part of an aircraft and aircraft, particularly rotary-wing aircraft, comprising such a structural assembly Structural assembly of part of an aircraft and aircraft, particularly rotary-wing aircraft, comprising such a structural assembly page < Method and apparatus for controlling passenger flow on aircraft www.patentalert.com /docs/001/z00121425.shtml   (64 words)

rec.aviation.rotorcraft The discussion of helicopters and other rotary wing aircraft have become quite confusing in the general aviation newsgroups, hence the idea to create the new newsgroup has been met with an overwhelming positive response. This is a formal Request for Discussion (RFD) on the creation of an unmoderated newsgroup dedicated to the discussion of rotary wing aircraft such as helicopters, gyroplanes, etc... Newsgroups line: rec.aviation.rotorcraft Helicopter/Rotary wing aircraft Voting closed at 23:59:59 UTC, 15 May 1995. www.faqs.org /usenet/news.announce.newgroups/rec/rec.aviation.rotorcraft   (1146 words)

Rotary Wing JORDAN AIR specializes in the structural repair and/or restoration of fixed wing and rotary winged airframes. Kazair West provides the following high quality services: fixed and rotary wing corporate and private charters, aviation project management, both domestic and international medical evacuation (medevac). These include hangarage, fueling, maintenance, light aircraft and helicopter flight training, national and international charter and aerial filming services. www.glcnovelties.com /wings/html/Aircraft/Rotary_Wing_   (415 words)

rules using "aircraft" The rules that use the vocabulary item "aircraft" are: www.ai.sri.com /~lesaf/grammar-help-current/grammar-help-army/index-lex-aircraft.html   (9 words)

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