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Topic: Ground loop (aviation)

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Undercarriage

	Ground loop (aviation) - Wikipedia, the free encyclopedia
		In aviation, a ground loop refers to the rapid rotation of a fixed-wing aircraft in the horizontal plane whilst on the ground.
		In powered airplanes, the ground loop phenomenon is predominantly associated with aircraft that have conventional landing gear, due to the centre of gravity being positioned behind the main wheels.
		Ground loops occur, when the aircraft is moving on the ground -- either taxiing, landing, or during takeoff.
	en.wikipedia.org /wiki/Ground_loop_(aviation) (528 words)

	Dodgen Aircraft
		A ground loop is something that need never happen in a tailwheel pilot’s career as long as they understand the limitations of their aircraft, their ability based on their piloting experience, and how to properly avoid letting the aircraft get into this condition.
		The ground loop is when the tail of the aircraft loses directional stability and rotates about the horizontal axis of the aircraft.
		If the ground loop has developed further, the pilot is no longer able to directionally control the aircraft, or a go-around is not possible, the pilot should immediately retard the throttle to idle and control the aircraft to the best of their ability using rudders and brakes to bring the aircraft to a stop.
	www.dodgenaircraft.com /trainingGroundLoops.htm (765 words)

	Aero 10 - Loop Resistance Tester
		Grounding the shield at both ends is typical for lightning protection, but this tactic was found to be ineffective against the low-frequency hum.
		When a coupler is connected to this loop, the coupler forms the output winding and magnetic core of a transformer, and the shield loop forms the input winding of the transformer.
		In addition, the loop standards for the LRT needed to be measurable by calibration equipment so the loop standards themselves could be certified and traceable to standards set by the U.S. National Institute for Standards and Technology.
	www.boeing.com /commercial/aeromagazine/aero_10/loop_story.html (3273 words)

	Ground loop - Wikipedia, the free encyclopedia
		In electrical engineering and electronics, a ground loop refers to an unwanted current that flows in a conductor connecting two points that are nominally at the same potential, for example ground potential, but are actually at different potentials.
		In aviation circles, the term ground loop refers to the rapid circular rotation of an aircraft in the horizontal plane while on the ground.
		Ground loops are common with taildraggers, as the center of gravity is behind the main undercarriage.
	en.wikipedia.org /wiki/Ground_loop (150 words)

	Santa Monica Airport Flight Training - Skyward Aviation FAQ
		A parallel program of flight and ground training is very efficient, allowing each portion to complement the other in a balanced approach to learning.
		Ground school will prepare you for the FAA written examination as well as the FAA oral exam.
		The oral quiz covers the topics you will learn in ground school and the flight test is where you will demonstrate your ability to perform the skills you have learned in an airplane.
	www.skyward-aviation.com /faq.htm (1060 words)

	Sport Aviation Magazine (Site not responding. Last check: 2007-11-04)
		We maneuver the Vimy to the paved runway's centerline.
		The nearest piece of visible ground is 100 feet away and between 12:30 and 3 o'clock.
		Yes, but to paraphrase a popular aviation admonition from the 1930s, it seems to have the potential to be terribly unforgiving of any carelessness, incapacity, or neglect.
	www.eaa.org /benefits/sportaviation/octfeat.html (3801 words)

	Ground Loop (Site not responding. Last check: 2007-11-04)
		A ground loop is an uncontrolled turn during ground operation that may occur while taxiing or taking off, but especially during the after landing roll.
		Careless use of the rudder, an uneven ground surface, or a soft spot that retards one main wheel of the airplane may also cause a swerve.
		As explained in the chapter on Landing Approaches, due to the characteristics of an airplane equipped with a tailwheel, the forces that cause a ground loop increase as the swerve increases.
	www.faatest.com /books/FLT/Chapter10/GroundLoop.htm (396 words)

	NDM Article - Navy Aviation: Skills Surpass Smart Weapons
		Naval aviators who fought in Operation Enduring Freedom said they were encouraged and upbeat by the newly-found appreciation for carrier-based aviation seen since the outbreak of the conflict in Afghanistan a year ago.
		The downside for U.S. strike aviators is that the Iraqis have become deft at discerning the tactics and techniques of American pilots.
		The achievements of carrier-based aviation this past year should help tame down budget hawks at the Pentagon who may be considering cutbacks to the carrier fleet, said several officials at Tailhook.
	www.nationaldefensemagazine.org /issues/2002/Oct/Navy_Aviation.htm (1334 words)

	Marine Corps Legacy Museum - Marine Corps Aviation
		Cunningham, the first Marine Aviator trained in, to the V-22 "tilt rotor" Osprey, the Corps has pioneered the use of aircraft over the field of combat.
		Fist loop done in a seaplane, first use of air power as a supporting element of ground combat, first use of helicopters in combat, first American to orbit the earth, and the list goes on.
		Utilizing both fixed and rotary wing aircraft, Marine Air is structured, supported, trained, and further tasked with developing equipment and techniques designed to put Marines and steel "on target" as an integral part of the accomplishment of the Marine Corps mission.
	www.mclm.com /gallery/aviation.html (216 words)

	Pioneer Pilot Sylvia Barter Interview Transcript
		A ground loop is when you're on the runway, and instead of just going straight ahead, the airplane does a complete spin on its wheels.
		We were restricted to base, housed in barracks, marched to ground school, to calisthenics, to flight line, to mess hall and to parade ground.
		Ground school and flight training were conducted along the same lines as the male Air Corps cadets and flight tests by army pilots were very exacting and were given on a regular basis.
	teacher.scholastic.com /earhart/barter.htm (3874 words)

	adn.com \| Security Aviation
		Security Aviation Inc. executives lied about winning massive government contracts for war games and covert operations to cover up what authorities suspected was the real source of their money: a raid on a private trust connected to company owner Mark Avery, federal prosecutors assert in new court filings.
		The government's investigation of Security Aviation Inc. and at least one of its officials took a new turn Thursday with the announcement that both the company and the official were indicted on federal weapons charges.
		Federal agents returned to Security Aviation on Saturday, but this time their search was more limited than the raids two weeks ago at the air charter company's facilities in Anchorage and Palmer and owner Mark Avery's C Street building.
	www.adn.com /news/alaska/security_aviation (1947 words)

	Fatal Coast Guard Aircraft Accidents
		Stonerock was an Aviation Pilot and was the pilot of the RD-4.
		The aircraft emerged from the clouds in a spin to the left and impacted the ground.
		Responding to a request for emergency medical evacuation from a vessel on the Mississippi River, the PBY struck a submerged obstacle that caused the aircraft to water loop, separating the wing from the fuselage.
	www.check-six.com /lib/Coast_Guard_Aviation_Casualties.htm (7019 words)

	HI FI Audio in SSB
		Ground loops are often difficult to isolate, even for those with experience.
		Common mode: all conductors except ground act in common: that is, as one conductor with reference to ground.
		The AC ground is tied to the brake release secondary ground.
	www.w3oz.netfirms.com /newgrounding.htm (2453 words)

	AviationTesting
		The Aviation Technical Test facility located in Duluth, MN, tests icing on aircraft by generating a cloud of moisture which the test aircraft flies into, resulting in icing under freezing conditions.
		DTC’s testing of aviation life support equipment determines whether the developmental equipment performs as required, is safe, reliable and conforms to human-factors engineering design criteria.
		The Electronic Proving Ground is the Army’s tester for aircraft survivability equipment such as radar warning receivers, threat warning systems, and self-protection jammers.
	www.dtc.army.mil /capabilities/aviation.html (865 words)

	Metron Aviation - Simulation Environment
		Metron Aviation maintains an excellence in simulation theory and practice that has been applied to simulation exercises in support of FAA, Airlines, U.S. Navy, and DARPA.
		In the area of aviation simulation, modeling and simulation has become a vital link in the TFM process and forms the engine behind interactive what-if capabilities as well as plan development.
		Metron Aviation’s simulation environment is data oriented, time step driven, remotely accessible, and provides a revolutionary platform for Human-in-the-Loop exercises and real-time training based scenarios.
	www.metronaviation.com /simulation_environment.php (502 words)

	Aviation International News \| Safe ground operations require cooperative effort (Site not responding. Last check: 2007-11-04)
		The hope was that business aviation across the board would eventually benefit from lower insurance premiums.
		Being able to talk to the line crew facilitates parking and positioning for ground transportation, should the airport permit vehicles on the ramp.
		Aviation International News is a publication of The Convention News Co., Inc., P.O. Box 277, Midland Park, NJ, 07432.
	www.ainonline.com /Issues/04_06/04_06_ground_84.htm (1557 words)

	USCG PBY-5A 48314, Argentia Newfoundland, 1946-1948
		These heaters used aviation gasoline for fuel, a glow plug for ignition and a minimum of 80 knots airspeed for the air supply that would hopefully mix with the fuel and be ignited by the glow plug.
		As the loop line was snagged, the hook was pulled from the spring catch on the pole and the 30 feet of catcher line, the 25 feet of ground loop and the 10 foot leader line would drag the container into the air.
		As the pilot flew over the ground party, the crew member would stand up in the wind, cut the loop line, and hope the container would fall where the ground personnel could retrieve the contents.
	www.zianet.com /tmorris/argentia.html (2721 words)

	y2k problems on ground not air
		There are reasons to be concerned about flying over the new year, analysts say, but not because computers in the plane or air traffic control systems might go haywire as the last two digits of the date click from 99 to 00.
		The real risk, they say, is delay: sitting in a terminal, waiting to board a plane that is grounded because of a fault on the ground, perhaps in the baggage system.
		Most Boeings do not even have a computer in the loop between the pilot and the control surfaces on the wing and tail.
	www.rense.com /politics5/y2kground.htm (728 words)

	Miami-Dade Aviation (Site not responding. Last check: 2007-11-04)
		August 3, 2001 --Miami International Airport's revenue from ground transportation trips is projected to double with the installation of a new Automatic Vehicle Identification (AVI) system.
		Commercial ground transportation operators currently pay a fee to the airport based on the “honor system” of their reported number of trips in and out of MIA property.
		Miami-Dade Aviation Department personnel have already equipped more than 2,250 vehicles with transponders which will signal receiving units installed at the terminal roadway entrances and exits, the bus loop, and the South Bus Station.
	www.miami-airport.com /html/miami-dade_aviation_85.html (370 words)

	Aviation Recorder Overview
		The International Civil Aviation Organization (ICAO) Flight Recorder Panel has concluded that video technology has matured to the point where specific technical aspects must be determined, and that the ongoing work of European Organisation for Civil Aviation Equipment (EUROCAE) and Aeronautical Radio Inc. (ARINC) should be considered when developing video recorder standards and recommended practices.
		As far back as the early 1940s, it became apparent to the aviation community that public confidence must be gained and maintained if commercial aviation were to prosper.
		It was also obvious that the nature of aviation accidents would make it necessary to fit air transports with recording devices to provide accident investigators with the information needed to determine the cause of a mishap and take the proper corrective action to prevent it from recurring.
	www.ntsb.gov /Events/symp_rec/proceedings/authors/grossi.htm (5276 words)

	MILITARY AVIATION: MUSEUMS
		Air Classics is an aviation museum located at Aurora Municipal Airport - ARR where the aircraft actually fly.
		Glenn L. Martin Aviation Museum displays many items of local historical significance; industial models of aircraft and rockets, wind tunnel models, restored and partly restored aircraft, and many original photographs outlining the growth of the Martin Company and its people.
		Formed at Czyzyny in 1964, the museum exhibits the world aviation heritage; the collection is one of the European leaders.
	www.olive-drab.com /od_other_aviation_air_museums.php3 (1731 words)

	rec.aviation.aerobatics FAQ
		I The barrel roll is a combination between a loop and a roll.
		The flying is judged by judges on the ground.
		But as with most anything else in aviation, it is only as safe or dangerous as the pilot makes it.
	www.cs.uu.nl /wais/html/na-dir/aviation/aerobatics-faq.html (4376 words)

	The House of Rapp » Aviation (Site not responding. Last check: 2007-11-04)
		A while back, I made a casual suggestion John at Aviation Mentor. He often writes about instrument flying in “glass panel” aircraft, something that is near and dear to my heart since this is one of my specialties at work.
		This is not always an asset in the cockpit. In aviation, sometimes the answer is to not tackle the problem at all. Stay on the ground. Turn around. Land. Or, ask for help. Admit you’re lost. Declare an emergency. This is not an easy or natural mindset for a lot of these guys.
		For those of you who aviate on airliners, you may feel this aphorism is directed your way.
	www.rapp.org /archives/category/aviation (9268 words)

	The Glenn L. Martin Maryland Aviation Museum
		B-57B's suffered a number of fatal crashes and groundings until one of many adjustments to the trim control finally worked.
		In addition to planes lost to ground fire, fifteen were destroyed on the ground at Bien Hoa air base in a Viet Cong mortar attack and a later runway accident.
		Recurring structural problems with the extra-long wings caused the grounding of all RB-57D's in 1963.
	www.marylandaviationmuseum.org /history/martin_aircraft/23_b57.html (1379 words)

	Aviation Heritage Golden Age Early Birds (Site not responding. Last check: 2007-11-04)
		He is a show-off, not only in the air but also on the ground, with his antics on bicycles, and also with his personal mannerisms.
		The other was exhibition flying, a phase of aviation that sprang from public eagerness to see airplanes in flight and which did not end until a thrill-sated America discovered with horror the terrific price, in human life, that had been paid for its amusement.
		He was very successful in his usual three loop exhibitions, but decided to perform a more spectacular stunt.
	www.aviation-heritage.com /eZine/Bio01.htm (618 words)

	Articles About Taildraggers (Site not responding. Last check: 2007-11-04)
		Not all tail wheel aircraft want to whip into a ground loop as soon as you open the tap, but they should all be treated with caution.
		Western Canada Taildragger As a result of the Canadian Governments' "User-Feeing" Canadian General Aviation into oblivion, many private aircraft owners are looking toward moving their operations back to the grass and gravel strips that were the launching ground of the Aviation Industry.
		Left alone on the ground without pilot control, it will be blown around to nose into the wind.
	www.taildraggerclub.org /tdc/td/articles.html (775 words)

	Cessna O-1A (Site not responding. Last check: 2007-11-04)
		A gap in the aircraft records exists until January 31, 1958, when it was assigned to the 502nd Aviation Company.
		On May 18, 1963, it left FAWD for duty with the AQC (Aviation Qualification Course), Aviation Maintenance Department, Fort Hood, Texas, where it remained until June 10, 1966.
		On November 19, 1971, it was assigned to the U.S. Army Aviation School (USAAVNS) at Fort Stewart, Georgia.
	www.nasm.si.edu /research/aero/aircraft/cessna_o1.htm (904 words)

	Sopwith Camel \| Aviation History\| Blueprints
		Indeed, many experts in military aviation consider the Camel to be one of the greatest fighting aircraft of its time.
		anufactured by the early British aviation pioneer, Sir Thomas O.M. Sopwith, the fast and highly maneuverable Camel was the scourge of the German Air Force, which lost nearly 1,300 aircraft to the little British fighter.
		Although the Sopwith Camel scored numerous victories over enemy aircraft, three of its achievements are of particular importance in the annals of military aviation history.
	www.aviationshoppe.com /Sopwith-Camel.html (828 words)

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