CPAER NAVIGATION Questions and Answers
Verified 100%
Definition of Longitude
perpendicular to the equator
what is the meridian of 0 degrees
the prime meridian- greenwich
definition of latitude
a measurement of distance in degrees north and south of the equator also called
parallels
what is a great circle?
whose centre and diameter is the same that of the earth
a great circle between two points on the surface of the earth will do what?
be the shortest distance between two points
what is a small circle?
the centre and diameter is not the same as that of the earth
what are parallels of latitude
small circles that are parallel to the equator with the exception of the equator
what is a meridian
half of a great circle which joins the poles and as such is a line of constant longitude
what is a rhumb line?
a line of constant direction - it will cross all meridians at the same angle
, parallels of latitude are
rhumb lines
what is variation?
the differences between true and magnetic directions w
what is an isogonic line¿
a line of constant variation
what is an agonic line?
a line of zero variation
what is the definition of deviation?
the difference between magnetic direction and compass direction- the error in compass
reading
what are the chart properties for a VTA?
projection: transverse mercator
1:250 000
great circle needs to be curved to the nearer pole
rhumb lines are straight lines
meridians are straight lines
what are the chart properties for a VNC?
projection: Lamberts conformal conic
1:500 000
great circle tracks: straight line
rhumb lines: arc curved towards the equator
meridians: straight line
Verified 100%
Definition of Longitude
perpendicular to the equator
what is the meridian of 0 degrees
the prime meridian- greenwich
definition of latitude
a measurement of distance in degrees north and south of the equator also called
parallels
what is a great circle?
whose centre and diameter is the same that of the earth
a great circle between two points on the surface of the earth will do what?
be the shortest distance between two points
what is a small circle?
the centre and diameter is not the same as that of the earth
what are parallels of latitude
small circles that are parallel to the equator with the exception of the equator
what is a meridian
half of a great circle which joins the poles and as such is a line of constant longitude
what is a rhumb line?
a line of constant direction - it will cross all meridians at the same angle
, parallels of latitude are
rhumb lines
what is variation?
the differences between true and magnetic directions w
what is an isogonic line¿
a line of constant variation
what is an agonic line?
a line of zero variation
what is the definition of deviation?
the difference between magnetic direction and compass direction- the error in compass
reading
what are the chart properties for a VTA?
projection: transverse mercator
1:250 000
great circle needs to be curved to the nearer pole
rhumb lines are straight lines
meridians are straight lines
what are the chart properties for a VNC?
projection: Lamberts conformal conic
1:500 000
great circle tracks: straight line
rhumb lines: arc curved towards the equator
meridians: straight line
