| Introduction
Happily, at least 99% of flights arrive at their intended
destination. However, occasionally the outcome is different, be it due
to some technical or passenger related problem en-route, or weather or
congestion at destination. Hence, knowledge of what alternate airfields
are available during the flight is highly desirable. These maps will allow
pilots to gain a fairly detailed picture of the facilites around them
throughout the course of the flight. They also enable a quick assessment
of the options available, if a diversion becomes necessary, in what will
almost certainly be an already busy flight deck.
Sample Map
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| Diversion Scenario
If such a diversion becomes necessary, the first port
of call in most modern airliners would be blue circles on the HSI moving
map display with ICAO 4 letter codes. On types such as the 757 these merely
indicate the presence of a runway in excess of 1500m. No other information
is given. Also, the coverage is probably less than 70% of what is really
down there. Items we would like to know about would include the length,
number and bearing strength of runways. Also what type of instrument approach
is available. Is the airport open? Does it have fuel and/or customs? Other
factors which are more operator specific, but no less important, would
include availability of airfield charts and airfield performance data
on board. To this it would also be advantageous if one's own airline,
or alliance member (eg oneworld) was a regular visitor.
To answer all these questions could involve reaching for
a multitude of manuals at a time of probable high workload. Hence these
maps. All these questions are answered by referring to this one document.
These maps cover the entire globe, and are grouped into areas, namely
Europe, Americas, Asia, Australia/Pacific and Africa. Each map is paired
with a table which gives secondary data.
The author, Neil Scarrow has been a Pilot with a major
European airline for over 10 years. Captain for 4 years.
Sample Table
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