Basics 1 min read
Engine Pressure Ratio (EPR)
Turbine engines have their own pressure indication that relates the power being developed by the engine. It is called the…
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Basics 2 min read
Manifold Pressure
In reciprocating engine aircraft, the manifold pressure gauge indicates the pressure of the air in the engine’s induction manifold. This…
Basics 2 min read
Pressure Instruments
Engine Oil Pressure The most important instrument used by the pilot to perceive the health of an engine is the…
Basics 4 min read
Types of Pressure
Pressure is a comparison between two forces. Absolute pressure exists when a force is compared to a total vacuum, or…
Basics 7 min read
Pressure Measuring Instruments
A number of instruments inform the pilot of the aircraft’s condition and flight situations through the measurement of pressure. Pressure-sensing…
Basics 2 min read
Navigation Instruments
Navigation instruments are those that contribute information used by the pilot to guide the aircraft along a definite course. This…
Basics 3 min read
Classifying Instruments
There are three basic kinds of instruments classified by the job they perform: flight instruments, engine instruments, and navigation instruments.…
Basics 4 min read
Reducing Skin-Friction Drag by Laminar Flow
In a previous post I introduced the concept of skin-friction and pressure drag, and discussed the contradicting aerodynamic conditions to minimise…
Basics 4 min read
Thrust Reversal
In a typical turbofan jet engine the oncoming airflow is compressed throughout a series of compressor stages, mixed with a…
Basics 5 min read
Breguet Range Equation
There is a saying that your audience will halve for every equation you put in a piece of writing. Well,…