Naples 2 Flashcards
(26 cards)
What is an advantage of the IVSI over VSI
Immediate response to climbs and descents (electrical IVSI uses accelerometer and inertial IVSI more common)
What is the main principle which affect radar max range
Pulse repetition frequency
What is an advantage of a ring laser gyro (also called strapped down)
No moving parts
What is the accuracy of the rad alt (used below 2500ft and continuous waves)
2 - 5 %
A horizontal polarised signal is best received by
A horizontal antenna/receiver
A rhumb line on a Mercator is
Straight
What are the advantages of gyro stabilised remote indication compasses vs direct reading/mag compass?
Minimises turning and acceleration errors (ONUS and SAND)
Where is gyroscope tilt minimum
At the equators (magnetic dip)
What errors are in the machmeter
Pressure and instrument (not density)
How many satellites are required for RAIM (without baro aiding)
5 (6 for FDE)
What are the advantages of Doppler VOR
Minimises effect of obstructions on the vicinity of the site (OR reduces site error eg. scalloping and bending)
Lambert conformal chart, SP’s are 20s and 25s. Tracking 27s to 23s SE to NW. Flying the GC track where will you be in relation to the SL track at 25s
Slightly to the left (flipped if it crosses the parallel of origin which in this case would be 22.5s
Advantage of single sideband modulation
Eliminates the need for high energy AM carrier wave (OR more economy, less power)
Advantage of SSR over Primary radar
Less clutter (SSR: station interrogates aircraft giving atc information)
Order of priority for NAVAIDS
Loc (only on track), GNSS, VOR, NDB
Purpose of annunciator on gyro stabilised remote indicating compass
Inform the pilot that the mag detector unit and gyro are correctly aligned and synchronised (should be fluctuating to show correctly aligned / they stick to one side when re-aligning)
On an airborne weather radar (AWR) which statement is most correct/true?
Sharp gradients between strong and weak returns indicate heavy turbulence
If a twin RMI needle is manually rotated. One needle tuned to the ADF the other to the VOR
VOR needle moves with compass card while adf remains stationary (pointing to the station so hence will show incorrect bearing)
When plotting a VOR radial on a chart
Apply variation at the station (NDB = variation at the aircraft)
What is a factor that determines the range resolution
Pulse length
You are in the southern hemisphere tracking north. Upon decelerating what will the magnetic compass do?
Nothing (compass doesn’t deflect when tracking direct mag north/south)
Which is true of the ADC
Sends electrical signals to the flight instruments
Travelling under the tropopause with a constant Mno. Temp increases what happens to IAS
Nothing (true for straight and level)
When should you initiate INS
Prior to taxi
