IFR and Navigation Flashcards
If a pilot elects to proceed to the selected alternate, the landing minimums used at that airport should be the
minimums specified for the approach procedure selected
If RVR (runway visual range) is inoperative for the runway in use, you must
convert RVR minimums and use the value as ground visibility
A RVR of 1,600’ is how many statute miles if RVR is inop?
1/4sm
A RVR of 2,400’ is how many statute miles if RVR is inop?
1/2sm
A RVR of 3,200’ is how many statute miles if RVR is inop?
5/8sm
A RVR of 4,000’ is how many miles if RVR is inop?
3/4sm
A RVR of 4,500’ is how many miles if RVR is inop?
7/8sm
A RVR of 5,000’ is how many miles if RVR is inop?
1sm
A RVR of 6,000’ is how many miles if RVR is inop?
1 1/4sm
What point should be used to compute the estimated time en route on an IFR flight plan?
The point of first intended landing
How many degrees of deflection does each dot indicate on a VOR?
2 degrees
A VOR receiver shows a three dot deflection at 30NM from the station. How far is the aircraft displaced from the course centerline?
3NM
1 radial = 1nm at 60nm
6 degree radial deflection
30NM is half of 60nm
6 x 1) x (1/2
In IMC, a pilot often interprets acceleration or deceleration forces as a sensation of
climbing or descending
How fast is a standard rate turn?
3 degrees per second.
How long does it take to complete a 360 degree standard rate turn
2 minutes
How fast is a half-standard-rate turn?
1.5 degrees per second
What causes the northerly turning error in a magnetic compass?
The pull of the vertical component of the Earth’s magnetic field
The miniature airplane on the turn coordinator indicates
the Rate and Roll of a turn
When an aircraft is accelerated, some attitude indicators will incorrectly indicate a
climb
When an aircraft is decelerated, some attitude indicators will incorrectly indicate a
descent
What indication should be observed on a turn coordinator during a left turn while taxiing?
The miniature aircraft will show a turn to the left and the ball moves to the right
On a taxi check, the magnetic compass should
swing freely and indicate known headings
When is an attitude indicator considered unreliable during taxiing preflight
If the horizon bar fails to remain in the horizontal position during straight taxiing, or tips in excess of 5 degrees during taxi turns
What preflight check should be made of a vacuum driven heading indicator in preparation for an IFR flight>
Start the engines and after 5 minutes (to allow the gyro to spin up) set the indicator to the magnetic heading and check for proper alignment after taxi turns