Summary Flashcards
MI
Shallow
BG
Patches
PR
Partial
DR
Drifting
BL
Blowing
SH
Shower
TS
Thunderstorm
FZ
Freezing
DZ
Drizzle
RA
Rain
SN
Snow
SG
Snow grains
IC
Ice crystals
PE
Ice pellets
GR
Hail
GS
Snow pellets
BR
Mist
FG
Fog
FU
Smoke
VA
Volcanic ash
DU
Dust
SA
Sand
HZ
Haze
PO
Dust/sand whirls
SQ
Squalls
+FC
Funnel cloud
+SS
Sandstorm
+DS
Dust storm
Objectives of IFR control
To maintain a safe, orderly, expeditious flow of air traffic under the control of an IFR unit
Alerting service
The service provided to ATC units to notify appropriate organizations regarding aircraft in need of search and rescue aid and to assist such organizations as required
Terminal control service
The service provided by ACCs to aircraft operating within specified control areas
Canadian Domestic Airspace (CDA)
CDA includes all air paces over the Canadian airmass, the Canadian arctic, Canadian archipelago and those areas of the high seas within the airspace boundaries
Controlled airspace
Airspace of defined dimensions within which air traffic control services are provided and within which some or all aircraft may be subject to air traffic control
Altimeter Region Setting
Designated area within which aircrafts use the altimeter setting of the nearest station along the route of the flight
Class F airspace designations: M A H S T P F
Military Aerobatics Hang Gliding Soaring Training Parachuting Testing
Aircraft Movement Information Service (AMIS)
The service provided by ATC for the collection, processing and dissemination of aircraft movement information by use of air defence units
What 2 services are provided within an IFR
Flight Information Services
Alerting Services
Indicated speed
Speed shown on the airspeed indicator in the aircraft
True speed
The actual speed of the aircraft through the air, corrected for various errors
Ground Speed
Speed of the aircraft over the surface of the earth
What part of the Navaid provides lateral guidance
The localizer
VOR
Very High Frequency Omni-Directional Range. Radiates 360 spokes, one for each magnetic heading
NDB
Non-Directinonal Beacon. Radio transmitters that broadcast a signal in a circular nature. Pebble in a pond
Frequency and Wavelength
Inversely proportional. Higher the frequency, the shorter the wavelength
Base Leg
A flight path extending from the end of the downwind leg to he extended centreline of the approach end of the landing runway
MATS
Manual of Air Traffic Services
ATSAMM
Air Traffic Services Administration and Management Manual
TC AIM
Transport Canada Aeronautical Information Manual
CARs
Canadian Aviation Regulations
ARW
Altitude Reservation Services West
Mechanical Turbulence
Turbulence that occurs when air flows over irregular terrain or other obstructions
Moderate Turbulence
Changes in altitude or attitude occur but the aircraft remains in positive control at all times. It usually causes variation in air speed. Occupants feel definite strain against seat belts and unsecured objects may become dislodged
Causes of wake turbulence
Wing-tip vortices Rotor-tip vortices Jet-engine thrust stream Rotor down wash Prop wash
Light aircraft category weight
7000kg or less
What provides stability in the rolling plane
Dihedral angle of the wings
Cumulus cloud
Detached clouds, dense with sharp outlines, developing vertically in the form of rising mounds. Generally looks like a cauliflower
4 most significant meteorological dangers to aviation
Ice
Wind shear
Turbulence
Cumulonimbus Clouds (CBs)
Jet Stream Characteristics
Between 20k-40k Higher in altitude through the summer Higher in the tropics than in the poles Minimum winds speeds of 60Knots Thousands of miles long Hundreds of miles wide Thousands of feet tall
Wind shear
Change in wind speed or direction in a short distance. It can exist in horizontal direction, vertical direction or both.
Macroburst
A large downburst with a diameter of 2 miles or more when it reaches the earths surface. Can last from 5 to 20 mins.
Tropopause
Boundary between troposphere and the layer above
Troposphere
Where most weather occurs
Lift caused by friction between air and ground
Mechanical friction
Standard Atmosphere
Dry
15 degrees at sea level
29.92 pressure
RoC 1.98 degrees per 1000 feet
Air mass characteristics
Uniform properties of temperature and moisture in the horizontal
Air masses coldest to warmest
Continental Arctic
Maritime Arctic
Maritime Polar
Maritime Continental
Cold front
Transition zone between cold and warm air
Isobars
Curved lines on the surface weather map that join areas of equal barometric pressure
Widely Spaced isobars
Means that the pressure gradient is shallow with light winds
Requirements for a thunderstorm
Unstable air
Lifting action
High moisture content
Gust front
The result of strong down drafts in the mature stage of a thunderstorm which reach the ground and spread horizontally
Squal line
Narrow band of active thunderstorms
Effects of icing
Reduce lift/increase drag
Reduces air intake (engine failure)
Kinds of friction turbulence
Mechanical
Shear
Frontal
Types of thermal turbulence
Daytime
Cold air
Clear air turbulence
Occurs between 20k-40k Can hazard high performance aircraft No clouds Strong in jet stream Rapid change in wind direction and speed in short distance
Microburst
Downburst less than 2 miles in diameter for less than 5 mins