Lesson 1 Flashcards
is vital to maintain the safe and efficient operation of the aeroplane engines and their associated systems. It varies according to the type of engines fitted (e.g. piston, turboprop, or gas turbine), and in many cases the individual instruments are identical.
Instrumentation
A heat engine that uses one or more reciprocating pistons to convert pressure into a rotating motion.
PISTON ENGINES
It uses a piston that moves up and down inside the cylinder.
PISTON ENGINES
This is a measure of how much work is being done by the engine and is measured in revolutions per minute (rpm).
Engine Speed or (TACHOMETER)
This is a measure of the engine power of a supercharged engine (absolute pressure).
Induction Manifold Pressure, or Boost Pressure (MAP)
is usually given in inches of mercury (in Hg), and boost is normally measured in pounds per square inch (psi).
MAP or Manifold Air Pressure
more on suction
BOOST PRESSURE GAUGE
inside pressure
MAP or Manifold Air Pressure
Super charged engine is designed for an aircraft that flies up to [?] feet above sea level.
10, 000 feet
Acts on the output shaft of the engine and is proportional to the horsepower developed. It is occasionally used to provide information for power control.
Torque or Turning Moment
means the rotation of the shaft of the engine.
TORQUE
Helps in monitoring the condition of the reduction gears (set of gears that control the rotation of the propeller and the crankshaft).
TORQUE
This temperature is important because excessive temperatures can cause engine damage.
Cylinder Head Temperature
The temperature is measured in degrees Celsius.(°C).
Cylinder Head Temperature
When the pointer exceeds to the [?], it means the engine has a malfunction that causes overheating and can damage other components.
red line
Cylinder Head Temperature uses a [?] sensor then sends the signal to the instrument.
thermocouple
Ensures adequate lubrication of the engine. In pressure terms it may be HIGH or LOW, whereas the temperature is usually in degrees Celsius (°C).
Lubricating Oil Pressure and Temperature
is very important in engine operation for its purpose (cooling, lubrication and cleaning).
OIL
Purpose of Oil
cooling
lubrication
cleaning
When the temperature gauge is too high and the pressure is low it indicates [?] of the engine.
OVERHEATING
Provides a measure of the economy of the engine, and is measured in pounds, kilograms or gallons/hour.
Fuel Flow
indicates when there is a blockage or leakage on the fuel lines going to the engine.
FUEL FLOW
When the fuel flow shows a higher indication than the normal amount it may show that there is a [?].
leakage
Then when it drops it means there is something that [?] the fuel to flow on the engine.
blocking
Shows if the aircraft alternator is charging during normal operation. If continuous discharge is shown during flight, it is prudent to land as soon as possible as it would suggest that the battery will shortly become too depleted to operate normal aircraft.
Ammeter
Monitors the condition of the vacuum system which is driven from the engine.
Vacuum Gauge
The [?] drives the gyros for the artificial horizon and heading indicator instruments.
vacuum system
