Questions and Answers
What is Class E airspace?
Everywhere where another airspace is not.
How can we identify distinct Class E airspaces in sectional charts?
What does the acronym 'SET FOOD' stand for?
Surface airport areas, Extensions, Transition airspace, Federal airways, Off-shore airspace, Other (below & above A), Domestic enroute areas.
What is a Surface area designated for an airport?
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How do you recognize Surface airport areas in a sectional chart?
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What is an Extension to a Surface area?
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What is Transition airspace?
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How do you recognize Transition airspace with a floor of 700 FT AGL in a sectional chart?
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Why might you see a dashed circle inside a bigger magenta vignette circle on a sectional chart?
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How do you recognize Transition airspace with a floor of 1,200 FT AGL in a sectional chart?
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What are Federal airways?
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How do you recognize Federal airways in sectional charts?
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What is an Off-shore airspace area?
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How do you recognize Off-shore airspace area in sectional charts?
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What are Other airspace areas?
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What are Domestic enroute areas?
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What are the requirements to fly in a Class E airspace?
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What are the VFR minimums at or above 10,000 FT?
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What are the VFR minimums below 10,000 FT?
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Study Notes
Class E Airspace Overview
- Class E airspace, also known as "Echo," is controlled airspace not classified as A, B, C, or D, prevalent in the 48 contiguous states and Alaska.
- Identified primarily as the airspace "everywhere else."
Identification on Sectional Charts
- Floors of Class E airspace indicated by specific visual cues:
- 1,200 FT AGL: Blue vignette
- 700 FT AGL: Magenta vignette
- Surface: Dashed magenta line
Breakdown of Class E Airspace
- Class E airspace is categorized into distinct sections represented by the acronym "SET FOOD":
- S: Surface airport areas
- E: Extensions
- T: Transition airspace
- F: Federal airways
- O: Off-shore airspace
- O: Other (below & above A)
- D: Domestic enroute areas
Specific Class E Sections
- Surface Airport Areas: These are indicated by a dashed magenta area to protect instrument approach procedures.
- Extensions: Rectangular dashed magenta areas that facilitate approach procedures for Class B, C, or D airports.
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Transition Airspace: Areas facilitating traffic movement between terminal areas and enroute environments; identified by:
- 700 FT AGL: Magenta vignette
- 1,200 FT AGL: Blue vignette
- Federal Airways: "Highways in the sky," 8 NM wide, spanning from 1,200 FT AGL to 18,000 FT MSL, depicted by blue lines on charts.
- Off-shore Airspace: Designated to manage IFR separation beyond 12 NM from the coast, shown with "zipper" borders starting at 1,300 FT MSL.
- Other Airspace Areas: Extends from 14,500 FT to 18,000 FT MSL, with Class E continuing above Class A airspace up to FL 600 and beyond.
- Domestic Enroute Areas: Positioned outside or between federal airways to assist with air traffic control separation.
Flight Requirements and VFR Minimums
- Class E Airspace Flight Requirements: No specific requirements to operate within.
- VFR Minimums at or above 10,000 FT: Visibility must be at least 5 miles.
- VFR Minimums below 10,000 FT: Visibility must be at least 3 miles.
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Test your knowledge about Class E airspace with these flashcards. Learn how to identify distinct Class E airspaces in sectional charts and understand their definitions. Ideal for aviation students and enthusiasts alike.