In Aviation Charts, What Does Wac Mean?

What is the scale of a VFR sectional?

Sectional Aeronautical Charts are the primary navigational reference medium used by the VFR pilot community. The 1:500,000 scale Sectional Aeronautical Chart Series is designed for visual navigation of slow to medium speed aircraft.

How is maximum elevation figure calculated?

MEFs are determined by taking the highest of the following: 1) The point of highest terrain within a quadrangle, adding 200 ft for obstacles which are not required to be portrayed, and then adding 100 feet for vertical error and then rounding up to the next hundred feet; or 2) The height of the highest manmade obstacle

What do the tick marks on the airport diagram indicate?

The current practice is to use tick marks around the airport symbol to indicate that fuel is available and the field attended Monday through Friday from 10h00 to 16h00, local time. Today, many airports have self-service fuel so there is no longer a need for an attendant to be present.

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What is the difference between Unicom and Ctaf?

You call “Traffic” on the CTAF when you are self reporting your position. You are not soliciting of expecting a response. You are talking to other aircraft. You call ” Unicom ” when you are expecting a response from someone at a ground station.

How do you read a Metar?

The first two digits are the date, the 16th of the month, and the last four digits are the time of the METAR, which is always given in coordinated universal time (UTC), otherwise known as Zulu time. A ā€œZā€ is appended to the end of the time to denote that the time is given in Zulu time (UTC) as opposed to local time.

What does VFR stand for?

Aircraft flying in the National Airspace System operate under two basic categories of flight: Visual Flight Rules ( VFR ) and Instrument Flight Rules (IFR).

What is TAC in aviation?

Terminal Area Charts (TACs) provide a large-scale portrayal of selected metropolitan complexes to satisfy pilotage and local control requirements. The 1:250,000 scale VFR Terminal Area Chart ( TAC ) Series depict the airspace designated as Class B Airspace.

How much clearance does the maximum elevation figure give you?

The Maximum Elevation Figure (MEF), identifies the highest elevation within a quadrant on a chart. In theory, flying at the MEF guarantees you a minimum of 100′ of clearance from all-terrain and obstacles in the quadrant. Sectional chart quadrants are bounded by every 30 minutes of latitude and 30 minutes of longitude.

What does maximum elevation mean?

Maximum elevation figure or MEF is the a type of VFR altitude which indicates the height of the highest feature within a quadrangle area. It is of interest to pilots, who want to be aware of the highest mountain peaks and tall towers nearby, so that they can fly above them to avoid controlled flight into terrain.

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What do the big numbers mean on a sectional chart?

The Maximum Elevation Figure shows up on a sectional chart as a large number with a slightly smaller number next to it as illustrated in the image above with the red circle. MEF is calculated using the Mean Sea Level (MSL) elevation on a chart.

How do I know if my MOA is active?

The best way to figure out if a MOA is active is to call Flight Service or Center. They can let you know if there is scheduled activity, or if there are aircraft actively operating in a MOA. How do you ask? Just call up Center or Flight Service on their frequency, and ask if the MOA you’re near is active. 6

What is the difference between blue and magenta airport symbols?

Airports with control towers underlying Class A, B, and C airspace are shown in blue, Class D and E airspace are magenta. Airports with control towers underlying Class B, C, D, and E airspace are shown in blue.

How do I know if my airport is towered?

Two things distinguish a towered airport. One is the presence of air traffic controllers (ATC), whose primary function is to coordinate traffic flow and prevent collisions. The second is that a pilot must maintain two-way radio contact with ATC and obtain clearances to land, taxi, and take off.

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