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Topic: Uncontrolled Airspace

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	airspace
		Airspace is broken into the two broad groups – controlled and uncontrolled airspace – then into Class A - Class G. Class A - Class E designate controlled airspace.
		Even in uncontrolled airspace and at uncontrolled airports, minimum rules apply, though pilots can largely decide their own direction of flight and approach to landing.
		In uncontrolled airspace, visual flight rules require pilots to meet minimum requirements for good weather and visibility, fly at certain altitudes, and to stay a minimum distance from clouds.
	www.daviddarling.info /encyclopedia/A/airspace.html (508 words)

	Uncontrolled airspace - Wikipedia, the free encyclopedia
		Uncontrolled airspace exists wherever a control service can't be provided for whatever reason, or is not deemed necessary; many of them are above mountains or oceans.
		According to the airspace classes set by ICAO both class F and class G airspaces are uncontrolled by definition.
		Importantly, uncontrolled airspace is not the same as an uncontrolled airport, which can exist in both class E and G airspaces.
	en.wikipedia.org /wiki/Uncontrolled_airspace (299 words)

	Airspace Classifications
		Although Class C airspace is individually tailored to meet the needs of the airport, the airspace usually consists of a surface area with a 5 nautical mile (NM) radius, an outer circle with a 10 NM radius that extends from 1,200 feet to 4,000 feet above the airport elevation and an outer area.
		The fifth airspace to discuss is Class E Airspace which is generally that airspace that is not Class A, B, C, or D. Class E airspace extends upward from either the surface or a designated altitude to the overlying or adjacent controlled airspace.
		Class E airspace is also the airspace used by aircraft transiting to and from the terminal or en route environment normally beginning at 14,500 feet to 18,000 feet.
	www.allstar.fiu.edu /aero/airspace.htm (978 words)

	Airspace terminology
		Uncontrolled airspace in which an air traffic service is not always available for IFR flights.
		Airspace classified as Class D becomes class E when the appropriate ATC unit is not in operation.
		Class F Airspace is airspace of defined dimensions within which activities must be confined because of their nature and(or) within which limitations may be imposed upon aircraft operations that are not a part of those activities.
	homepage.ntlworld.com /catherine.onions/aviation/airspace.htm (867 words)

	PrcDevelopment: United States Airspace Classification (Site not responding. Last check: 2007-10-31)
		Controlled Airspace is defined as airspace of defined dimensions within which air traffic control service is provided to IFR flights and to VFR flights in accordance with the airspace classification.
		The basic purpose of Class E airspace is to ensure that aircraft operating on IFR flight plans can remain in controlled airspace during the entire flight, and to provide controlled airspace for terminal operations where a control tower is not in operation.
		Class E airspace extend upward from the surface to a designated altitude; or to the adjacent or overlaying controlled airspace.
	mbev.net /wikka/AirspaceClassification (1558 words)

	Airspace - Wikipedia, the free encyclopedia
		Airspace means the portion of the atmosphere controlled by a particular country on top of its territory and territorial waters or, more generally, any specific portion of the atmosphere.
		Uncontrolled airspace is airspace in which air traffic control does not exert any authority.
		Special use airspace includes things like areas where flight is prohibited for national security reasons.
	en.wikipedia.org /wiki/Air_space (170 words)

	Robert Comperini - Airspace Classifications (Site not responding. Last check: 2007-10-31)
		Airspace is not so complex that it is beyond the understanding of anyone who has the ability to learn to fly an ultralight (using proper instruction), so do not be intimidated.
		Class E airspace reaches the surface at uncontrolled or non-towered fields as shown by dashed magenta lines attached to the circular area that indicates the field's airspace.
		In Class G uncontrolled airspace closer to the ground, the VFR pilot must remain clear of clouds and have at least one statue mile of visibility.
	www.fly-ul.com /Airspace/jtaber (7468 words)

	Uncontrolled airspace - Definition, explanation
		According to the airspace classes set by ICAO both class F and class G airspaces are uncontrolled by definition.
		Importantly, uncontrolled airspace is not the same as an uncontrolled airport, which can exist in both class E and G airspaces.
		An uncontrolled airport uses a UNICOM or CTAF frequency to allow VFR and IFR pilots to coordinate and alert each other of their actions, while a towereded, controlled airport relies on the work of an air traffic controller to maintain separation.
	www.calsky.com /lexikon/en/txt/u/un/uncontrolled_airspace.php (356 words)

	Airspace & Airports
		Class E airspace reaches the surface at uncontrolled or non-towered fields as shown by dashed magenta lines attached to the circular area that indicates the field's airspace.
		In Class G uncontrolled airspace closer to the ground, the VFR pilot must remain clear of clouds and have at least one statue mile of visibility.
		To operate in Class B airspace, your aircraft must have two-way radio communication capability and a transponder with Mode C. With certain exceptions, the transponder is required within 30 nautical miles of the Class B area’s primary airport from the surface to 10,000 feet MSL.
	www.buckeye-illinois.com /airspace_&_airports.htm (7756 words)

	Encyclopedia: Uncontrolled Airspace (Site not responding. Last check: 2007-10-31)
		The worldâ€™s navigable airspace is divided into three-dimensional segments, each of which is assigned to a specific class.
		Controlled airspace exists in areas where air traffic control is capable of providing traffic separation.
		CTAF, or Common Traffic Advisory Frequency, is the name given to a VHF radio frequency used at U.S. airports which do not have an active or on-site control tower, such as when some major airports close their tower overnight.
	www.nationmaster.com /encyclopedia/Uncontrolled-Airspace (638 words)

	Uncontrolled Airspace Info - Bored Net - Boredom (Site not responding. Last check: 2007-10-31)
		Uncontrolled airspace (also known as 'class G' airspace) exists close to the ground where radar cover is not possible.
		Because IFR flight is not possible in uncontrolled airspace (due to ground proximity and lack of radar coverage), VFR is permitted even in extremely poor weather.
		In fact, most controlled airspace is 'class E' and aircraft are not required to have a radio to fly in this airspace.
	www.borednet.com /e/n/encyclopedia/u/un/uncontrolled_airspace.html (148 words)

	Uncontrolled airspace -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-31)
		According to the (Click link for more info and facts about airspace classes) airspace classes set by (The United Nations agency concerned with civil aviation) ICAO both class F and class G airspaces are uncontrolled by definition.
		All airspace above a certain (Click link for more info and facts about flight level) flight level is uncontrolled.
		Importantly, uncontrolled airspace is not the same as an uncontrolled (An airfield equipped with control tower and hangers as well as accommodations for passengers and cargo) airport, which can exist in both class E and G airspaces.
	www.absoluteastronomy.com /encyclopedia/u/un/uncontrolled_airspace.htm (303 words)

	AOPA Flight Training - How It All Works: Airspace
		All of this airspace is divided into several standardized types, ranging from A through G — with A being the most restrictive and G the least restrictive.
		Class B airspace is designed to help manage the flow of high volumes of airline traffic as these aircraft descend from the high-altitude flight levels into the lower altitudes and eventually the airport itself.
		Class G airspace is uncontrolled, so it includes all airspace in the United States that is not classified as Class A, B, C, D, or E. No air traffic control (ATC) services are provided, and the only requirement for flight is certain visibility and cloud clearance minimums.
	flighttraining.aopa.org /learntofly/overview/airspace.cfm (1152 words)

	AIRSPACE
		On your sectional, horizontal Class B airspace limits are outlined in concentric solid blue circular lines that may be indented or extended in certain places due to geography or air traffic routes.
		The ceiling of Class D airspace generally extends upward to 2,500 feet AGL over the airport surface but the exact upper limit is shown with a number inside a dashed box outline.
		Class G airspace is a mantle of low lying airspace beginning at the surface.
	www.flytandem.com /airspace.htm (3365 words)

	Airliners.net forum: Uncontrolled Airspace
		Uncontrolled airspace (also called Class G Airspace) is airspace generally within 1200 feet of the ground.
		Airspace surrounding smaller airports (with an Air Traffic Control Tower and weather reporting capability) is Class D (Control Zone) controlled airspace.
		In general, this airspace is usually confined to a small area close to the surface outside class B, C, D, and surface based E airspace.
	www.airliners.net /discussions/tech_ops/print.main?id=66702 (1231 words)

	Around the Airport and Types of ...
		This is at the stage the airliner climbs into Controlled Airspace or descends for a landing from Controlled Airspace at the major airport.
		Above free airspace in some parts of the country is Controlled Airspace or a Control Area or Control Zone or just a 10 mile wide airway may also be in operation.
		Airspace is classified into areas prefixed by letters.
	www.avsim.com /geoffschool/combined/airspace.htm (1613 words)

	VATEUD-TD
		The type of airspace is dictated by the complexity and density of aircraft movements, the nature of the operations conducted, and the level of safety required.
		Controlled airspace is the airspace within which all aircraft operators are subject to certain pilot-qualifications, operating rules, and equipment-requirements.
		The configuration of each Class B airspace area is individually tailored and consists of a surface area, and two or more layers (some Class B airspace areas resembles upside-down wedding cakes), and is designed to contain all published instrument procedures once an aircraft enters the airspace.
	www.vateud-td.org /handbooks/manual/4_airspace.asp (2085 words)

	Controlled vs Uncontrolled Airspace
		Airspace where IFR control service is desired, and a need to control VFR aircraft exists, is designated Class B. All Low Level controlled airspace above 12,500 (at or above the Minimum Enroute Altitude for an airway) is classified as Class B. Since it's Low Level Airspace, it goes up to, but doesn't include, 18,000 (FL180).
		Class F airspace is designated to confine activities that are potentially hazardous to aircraft not involved in the activity.
		Whether it is regarding the class of airspace he's in, what he's expected to do, or even who he should be talking to, he deserves a reasonable tone of voice (or text) when the answer is delivered.
	bathursted.ccnb.nb.ca /vatcan/fir/moncton/WeeklyTopics/Archives/20030727/CurrentTopic.html (3235 words)

	Knowing Your Airspace
		Uncontrolled Airspace is that in which aircraft don't have to be under FAA control or in radio contact with anyone.
		Controlled Airspace is that in which all aircraft must be under positive control and in contact with FAA controllers.
		Controlled airspace is a radius of 5 miles around the airport at altitudes of up to 2500 feet.
	www.qsl.net /n4jri/airspace.htm (999 words)

	7-2 (Site not responding. Last check: 2007-10-31)
		Uncontrolled airspace or Class G airspace is the portion of the airspace that has not been designated as Class A, B, C, D, or E. It is therefore designated uncontrolled airspace.
		Class G airspace extends from the surface to the base of the overlying Class E airspace.
		National security areas consist of airspace of defined vertical and lateral dimensions established at locations where there is a requirement for increased security and safety of ground facilities.
	avstop.com /AC/7-2.html (392 words)

	AIRSPACE AND AIRPORT TYPES
		Class E airspace may be designated from the surface upward as extension to class B, C, and D airspace (defined later) to accommodate IFR traffic requirements.
		These areas around uncontrolled airports where the Class E airspace goes down to 700 feet AGL instead of the standard 1200 feet AGL are depicted on aeronautical charts by a wide shaded magenta colored band around the airport.
		In the diagram, the top is 4,600 feet MSL This airspace may have a Class E extension as shown in the diagram for an IFR approach transition area.
	webusers.warwick.net /~u1007204/gs/airspace.html (3198 words)

	Flightinfo.com: airspace
		Airports that are not associated with Class B or C airspace have become class D airspace.
		The ceiling of Class D airspace is 2500 AGL (charted in MSL), and the lateral dimension are dependent upon the instrument approaches at that airport.
		The floor of the Class E airspace is 700 AGL, 1200 AGL, 1500 AGL, or 14,500 AGL, whichever applies.
	www.flightinfo.com /airspace.htm (486 words)

	To and From the Airport - Light Aircraft Flying - UK Airspace
		Classes A to E are called Controlled airspace, Classes F and G, uncontrolled airspace.
		Class D airspace is established in the form of CTRs and CTAs around the larger airfields in the UK, such as Aberdeen, Birmingham, Bournemouth, Brize Norton, Cardiff, Edinburgh, Glasgow, London Gatwick, Luton, London Stansted, Newcastle, Solent and Tees-side.
		Thus although the ATZ may be in Class G airspace and as such be uncontrolled, permission is still required to operate within.
	www.toandfromtheairport.com /lightaircraft/ukairspace.html (1762 words)

	Airspace Information - Birmingham International Airport
		The ICAO (International Civil Aviation Organisation) system grades airspace from A to G in order of importance, starting with Class A (the highest status, allocated to the busiest controlled airspace) through B, D and E (allocated to other controlled airspace) and on to Classes F and G, which cover all uncontrolled airspace.
		Birmingham controlled airspace comprises a number of areas, with varying bases ranging from surface level up to 6500 feet, designed to protect aircraft operating in to and out of Birmingham International Airport.
		ATC will then be aware of the aircraft flying within the airspace and are able to provide safe separation between aircraft.
	www.bhx.co.uk /page.aspx?type=T0NaZj9WNoU=&id=iWmhhROwWKo= (230 words)

	Airspace Map explained for Hang Glider and Paraglider Pilots (Site not responding. Last check: 2007-10-31)
		Controlled airspace means, that an air traffic controller routes all the planes flying in it and keeps them apart.
		What is based on the assumption that everyone flying in controlled airspace is in radio communication with this air traffic controller.
		Uncontrolled airspace relies on VFR Visual Flight Rules, assuming that every pilot looks outside and makes sure that we do not fly into each other.
	www.paragliding.co.za /sahpa/programs/skygod/Airspace/airspace.html (595 words)

	Uncontrolled airspace - Encyclopedia, History, Geography and Biography (Site not responding. Last check: 2007-10-31)
		Uncontrolled airspace - Encyclopedia, History, Geography and Biography
		Uncontrolled airspace exists wherever a control service can't be provided for whatever reason, or is not deemed necessary.
		This encyclopedia, history, geography and biography article about Uncontrolled airspace contains research on
	www.arikah.com /encyclopedia/Uncontrolled_airspace (304 words)

	Airspace
		Airspace is a three-dimensional area described in terms of altitude as well as by other characteristics such as whether it is above an urban or remote area.
		Airspace is broken into the two broad groups--controlled and uncontrolled airspace--then into Class A - Class G. Class A - Class E designate controlled airspace.
		Part of an aeronautical chart showing airspace class information.
	www.centennialofflight.gov /essay/Dictionary/airspace/DI79.htm (443 words)

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