Aircraft and Engine Instruments Flashcards
PITOT- STATIC SYSTEM Instruments
A. AIRSPEED INDICATOR
B. ALTIMETER
C. VERTICAL SPEED INDICATOR
GYROSCOPIC SYSTEM Instruments
A. ATTITUDE INDICATOR
B. HEADING INDICATOR
C. TURN COORDINATOR
Pressure sensitive devices that convert pressure supplied by the pitot-static system to instrument indications in the cockpit
Pitot-static system
Type of airspeed that is what we read directly from the instrument
Indicated Airspeed (IAS)
Type of airspeed that is corrected for instrument and installation errors
Calibrated Airspeed (CAS)
Type of airspeed that is CAS corrected for altitude and non standard temp. To get the true airspeed, add 2% for each 1000ft increase altitude.
True Airspeed (TAS)
Type of airspeed that is true airspeed over the ground, adjusted for the wind
Ground speed
Parts of the altimeter
(tignan mo sa ppt)
Type of Altitude as shown directly in the altimeter when it is adjusted to local altimeter settings.
Indicated Altitude
Altitude measured from International Standard Atmospheric pressure”ISA” of 29.92 in Hg.
Pressure Altitude
Pressure corrected for non-standard temperature.
Density Altitude
Actual height above Mean Sea Level “MSL”.
True Altitude
Actual height above Above Ground Level “AGL”.
Absolute Altitude
Altitude as shown in the radar.
Encoded Altitude
Types of altimeter settings which is the Local station pressure (ATIS, ATC)
Query Nautical Height (QNH)
Types of altimeter settings which is the Standard pressure settings (29.92 in Hg)
Query Nautical Elevation (QNE)
Types of altimeter settings which is Field elevation
(AIP)
Query Field Elevation (QFE)
If the altimeter setting is not available during flight, you should adjust the altimeter to the _______________.
ELEVATION OF THE DEPARTURE AREA.
When setting the altimeter
Equal lahat 30.00 in. Hg
higher and warmer
lower and colder
Converts the rate of static pressure to a rate of change in altitude.
VERTICAL SPEED INDICATOR
Immediate indication of the VSI
TREND
If pitot tube is clogged, and drain hole remains open, airspeed indicator will __________ because it senses no difference in pressure
decrease to zero
If Pitot tube and drain hole clogged, airspeed indicator will act as _______
altimeter
If Static blockage:
A. Altimeter – _________ will be indicated even if the airplane is changing altitude
B. VSI - _______
constant altitude, zero
If Static port clogged and pitot tube open, airspeed indication is ______ than actual speed when airplane is operated above the altitude where static port is clogged
lower
If clogged, what do we use
PITOT HEAT and ALTERNATE STATIC SOURCE
a device consisting of a wheel or disk mounted so that it can spin rapidly about an axis that is itself free to alter in direction.
Gyroscope
refers to the principle that a gyroscope remains in a fixed position in the plane in which it is spinning.
Rigidity in Space
the tilting or turning of a gyro in response to a deflective force.
Precession
Source of Power of Attitude indicator
and Heading indicator
Vacuum
Source of Power of Turn Coordinator
Electrical
It measures the vacuum pressure on the system in the unit of Inches of mercury.
Suction Gauge
Provides pitch movement for the lateral axis and roll movement for the longitudinal axis.
ATTITUDE INDICATOR
It displays the heading on 360 degrees azimuth with the final zero omitted.
HEADING INDICATOR
Provides “yaw” and “roll” movement about the vertical and longitudinal axis
TURN COORDINATOR
Quality of turn (turn coordinator)
tignan sa ppt
Primary source of information with regards to heading. It indicates the magnetic heading of an airplane.
MAGNETIC COMPASS
Angular difference between true north and magnetic north. Lines of same magnetic variations.
Isogonic lines
Angular difference between true north and magnetic north. Line joining places with zero variation.
Agonic lines
Errors caused by disturbances from magnetic fields produced by metals and electrical accessories within the airplane.
Magnetic Deviation
