Basic Aircrew Knowledge Flashcards
What is the ICAO ISA?
International Standard Atmosphere is 1013.25 mb at 15’C with a 1.98’C lapse rate per 1000ft up to 36,000ft
what is altitude
vertical distance of an aircraft from mean sea level
what is height
vertical distance from a specified datum (ground)
range of UHF radio
works on Line of Sight 100 to 150 nautical miles dependent on height
emergency frequencies
# 121.5 mhz Civil # 243 mhz Military (guard) # 406.025 mhz Cospas-Sarsat
what is the definition of a flight Level
surface of constant atmospheric pressure which relates to a specific pressure datum (1013.25)
what is the code for Aerodrome pressure
QFE
what is the code for Aerodrome pressure adjusted to mean sea level
QNH
what is a regional pressure setting
the lowest forecast
QNH for a specified area below transition altitude
what is the standard pressure setting
SPS 1013.2mb above transition altitude
what is elevation
the vertical distance between the surface of the Earth from sea level
what is a flight Level
surfaces of constant atmospheric pressure separated by air pressure levels
what is transition altitude
in the vicinity of an airfield aircraft are controlled by altitude in the UK this is usually 3000 feet
what is a transition level
first flight Level above the transition altitude usually flight Level 035 in the UK
what is controlled airspace
defines dimensions within which ATC service is provided
Aerodrome traffic zones
MATZ military traffic zone
CATZ civilian traffic zone
how is airspace organised
airspace is organised by vertical and lateral separation
lateral separation of air space
divided into FIR flight information regions and UIR upper information regions
UK SPLIT INTO FOUR REGIONS
vertical separation of air space
lower 3000 feet to FL95
middle FL100 to FL245
upper FL245+
what is operational air traffic control
For military aircraft operating above FL100 controlled by London and Scottish
Gives flexibility and counters the threat of efficiency by air traffic control strikes
What is RNAV?
Area navigation(RNAV) is a method of IFR navigation that allows an aircraft to choose any course within a network of navigation beacons rather than navigate directly to and from the beacons.
What is an ILS approach?
Instrument Landing System (ILS)is defined as a precision runway approach aid based on two radio beams which together provide pilots with both vertical and horizontal guidance during an approach to land.
