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Radio beacons: Difference between revisions
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===Planning=== | ===Planning=== | ||
Know the requirements of | Know the requirements and limitations of the aircraft. Does it need tarmac, an ILS, how much runway? Etc. Not any airfield is suited for landing of just any aircraft. Examine the airfield before deciding to go there. What is the cruising altitude of the aircraft? Can it fly over mountains or should it fly around them? Can it cross areas where there are no beacons? What is the range of the aircraft, when does the fuel run out? | ||
From the requirements and limitations you can plan your route. | |||
To plan a route we begin with a map and a ruler. On the map we draw a straight line between take-off and landing. For longer routes a string and a globe is used. That is the fastest route. Unfortunately that route is almost impossible to navigate. The route must be divided in '''legs''', each leg begins on a radio beacon and ends on a radio beacon. | |||
Near the straight line identify the VOR stations. A VOR station has a range of about 100 NM AGL. To prevent FROM navigation the legs should be less then 100 NM in length. To prevent continues tuning of your radio receiver and ever changing course the legs should be above 75 NM in length. If possible prevent NDR stations since they need continues attention. If possible prevent legs longer as 130 NM. | |||
Draw a zigzag line from station to station, each line is a leg of the route. Calculate the length of each leg. Use a compass rose to read the heading of each leg. Identify name, type and frequency of the stations. | |||
The result should be a sheet listing the legs of the planned route. | |||