Navigation Systems Flashcards
On an HSI, what does the tail of the bearing indicator show ?
the radial the aircraft is currently on.
When navigating using only VOR/DME based RNAV, selection of a VOR NAVAID that does not have DME service will
result in loss of RNAV capability.
When checking the course sensitivity of a VOR receiver, how many degrees should the OBS be rotated to move the CDI from the center to the last dot on either side?
10° to 12°.
For IFR operations off established airways, ROUTE OF FLIGHT portion of an IFR flight plan should list VOR navigational aids which are no more than
80 miles apart.
An aircraft 60 miles from a VOR station has a CDI indication of one-fifth deflection, this represents a course centerline deviation of approximately
2 miles. Assuming a receiver with normal course sensitivity and full-scale deflection at 5 dots, aircraft displacement from course is approximately 200 ft. per dot per NM. Because one-fifth deflection equals 1 dot, the aircraft is 12,000 ft. or 2 NM off course (200 ft./NM × 60 NM = 12,000 ft.).
Which situation would result in reverse sensing of a VOR receiver?
By flying a heading that is a reciprocal of the course set in the OBS, you will have two situations: You will be flying to the station with a FROM indication, or you will fly from the station with a TO indication. Either will result in reverse sensing.
When using VOT to make a VOR receiver check, the CDI should be centered and the OBS should indicate that the aircraft is on which radial ?
360 Radial
How should the pilot make a VOR receiver check when the aircraft is located on the designated checkpoint on the airport surface?
Set the OBS on the designated radial. The CDI must center within plus or minus 4° of that radial with a FROM indication.
Effective navigation by means of GPS includes
determining the current status of all databases.
What is a consideration when using a hand-held GPS for VFR navigation?
Position accuracy may degrade without notification.
To track inbound on the 215 radial of a VOR station, the recommended procedure is to set the OBS to
035° and make heading corrections toward the CDI needle.
To track outbound on the 180 radial of a VOR station, the recommended procedure is to set the OBS to
180° and make heading corrections toward the CDI needle.
How should the pilot make a VOR receiver check when the aircraft is located on the designated checkpoint on the airport surface?
Set the OBS on the designated radial. The CDI must center within plus or minus 4° of that radial with a FROM indication.
How many feet are the VOR dot deflections ?
200 Feet per dot
How many mile is each VOR DOT deflections ?
2 miles per dot. (5 dots = 200 ft x 5 = 12000 ft)
