18.48.10 Calculate the maximum holding duration prior to diversion to an alternate.
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Archives: Theory Courses
18.46.10 Calculate the maximum holding time available for a
18.46.10 Calculate the maximum holding time available for a given leg.
(c) proportion
a
18.22.6 List and explain the properties of:
18.22.6 List and explain the properties of: (a) a Mercator projection; (b) a Lambert's conformal projection.
(d) density altitude (DA)
a
(c) earth based navigation aids
a
18.8.2 Define: (e) equivalent airspeed (EAS)
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(e) Meridians of Longitude
Meridians of longitude form half of an imaginary great circle on the Earth’s surface, starting at the North Pole and ending at the South Pole, connecting points of equal longitude
Longitude describes the location of a place East or West from the Prime Meridian, a line which runs between the poles and through Greenwich, England; which acts as a datum.
Longitude increases as you leave the Prime Meridian (0 degrees) going East (0 to 180 degrees) and decreases as you head West (0 to -180 degrees), until they meet at 180 degrees.
– ETP
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ETP – Tailwind Example
In this example we take look at working out a ETP,
With TAS of 200kts and Tail wind of 40kts over distance over 800nm.
Distane to to ETP is : 320Example of ETP.Nav Computer setupBy checking the 1 and read off a percentage distane a long your track where the ETP is.
This a handy check, to double check the ETP has moved toward the wind .As Double Check, just confirm that the times for each legs are the same.