Part 3, Section 1 - ALTIMETER SETTING PROCEDURES Flashcards
In flight above the transition altitude, the vertical position of an aircraft is expressed in terms of _____, which are surfaces of constant atmospheric pressure based on an altimeter setting of 1 013.2 hPa
In flight above the transition altitude, the vertical position of an aircraft is expressed in terms of flight levels, which are surfaces of constant atmospheric pressure based on an altimeter setting of 1 013.2 hPa
The change in reference from altitude to flight levels, and vice versa, is made:
1) at the transition altitude, when climbing; and
2) at the transition level, when descending.
The airspace between the transition level and the transition altitude is called the _____
The airspace between the transition level and the transition altitude is called the transition layer.
The height above the aerodrome of the transition altitude shall be as low as possible but normally not less than _____
The height above the aerodrome of the transition altitude shall be as low as possible but normally not less than 900 m (3 000 ft).
While passing through the transition layer, vertical position shall be expressed in terms of:
a) _____ when climbing; and
b) _____ when descending.
While passing through the transition layer, vertical position shall be expressed in terms of:
a) flight levels when climbing; and
b) altitude when descending.
A serviceable altimeter indicates the elevation of the point selected, plus the height of the altimeter above this point,
within a tolerance of:
±20 m or 60 ft for altimeters with a test range of 0 to 9 000 m (0 to 30 000 ft);
When flying at levels with the altimeter set to 1 013.2 hPa, the minimum safe altitude must be corrected for deviations in pressure when the pressure is _____ than _____. An appropriate correction is _____
When flying at levels with the altimeter set to 1 013.2 hPa, the minimum safe altitude must be corrected for deviations in pressure when the pressure is lower than the standard atmosphere (1 013 hPa). An appropriate correction is 10 m (30 ft) per hPa below 1 013 hPa.
The calculated minimum safe altitudes/heights must be adjusted when the ambient temperature on the surface is much lower than that predicted by the standard atmosphere.
In such conditions, an approximate correction is _____ per cent heightincrease for every _____ below standard temperature as measured at the altimeter setting source. This is safe for all altimeter setting source altitudes for temperatures above _____
The calculated minimum safe altitudes/heights must be adjusted when the ambient temperature on the surface is much lower than that predicted by the standard atmosphere.
In such conditions, an approximate correction is 4 per cent heightincrease for every 10°C below standard temperature as measured at the altimeter setting source. This is safe for allaltimeter setting source altitudes for temperatures above –15°C.
