Aircraft 7 (Instruments 3) Flashcards
What are 4 pros of analogue instruments?
- Easier to read
- Rapid changes can be detected easily
- Trends are easily noticed
- Better situational awareness during rapid changes
What are 2 cons of analogue instruments?
- Can be inaccurate
- Minor changes can be difficult to detect
What are 2 pros of digital instruments?
- They’re more precise
- Minor fluctuations are easier to detect
What are 2 cons of digital instruments?
- Poor situational awareness during rapid changes
- Some displays are difficult to read in bright light
What are the 4 instruments connected with the engine?
- Fuel (quantity, flow, pressure and temperature)
- Oil (quantity, pressure and temperature)
- Engine power
- Electrical power
How often must fuel levels be checked?
Fuel levels must be checked at least once every hour and compared to actual fuel burnt.
What are 2 problems that could cause the fuel to be lower than expected?
- Blocked fuel line
- Fuel leak
Why do engines need lubrication?
Because they spin in excess of 35,000 RPM
How is the engine lubricated?
Oil is pressurised and injected into the engine
What are 2 things high oil pressure could indicate?
- Oil blockage
- Overfilling
What could low oil pressure indicate?
Blocked or ruptured line.
What is EPR?
The engine pressure ratio is the pressure difference from the front and the rear of the engine
Which 4 services are engine driven?
- Electrics
- Hydraulics
- Cabin pressure
- Air conditioning
Which 5 things are controlled by hydraulics?
- Flaps
- Flying controls
- Air break
- Spoilers
- Wheel break
What are the 3 uses of a transponder?
- Identification
- Altitude reporting
- Using conspicuity codes
