Why is a great circle the shortest distance between two points?
Why is a great circle the shortest distance between two points?
The track changes constantly.
What are the disadvantages of a swept wing?
What are the disadvantages of a swept wing?
Swept wings have:
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Poor lift qualities
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Higher stall speeds
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Speed instability at low speeds
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A wing-tip stalling tendency
Are jet streams there all year round?
Are jet streams there all year round?
Yes.
There are permanent jet streams in the...
What are the benefits of a free turbine?
What are the benefits of a free turbine?
A free turbine is a turbine that is not directly connected to the compressor. This allows the compressor to rotate at a different speed than the turbine. Since the turbine speed is coupled with the propeller, this allows for the propeller to be maintained at a constant ideal speed.
Another advantage is that free turbine engines can be designed to be more compact than their single shaft counterparts
How do you get out of a spiral dive on a Cessna?
How do you get out of a spiral dive on a Cessna?
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Unload. Make sure you are no longer 'pulling G's'
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Roll wings level
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Power Reduce the power to avoid overspeeding.
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gently pull back on the control wheel to ease out of the dive.
When slowed down to a safe airspeed apply throttle as needed.
(N.b.: Do not confuse a spiral dive with a spin)
Can you explain what a coastal breeze is?
Can you explain what a coastal breeze is?
A coastal breeze is a wind from the sea that develops over land near coasts.
It is formed by increasing temperature differences between the land and water; these create a pressure minimum over the land due to its relative warmth, and forces higher pressure, cooler air from the sea to move inland.
Generally, air temperature gets cooler relative to nearby locations as one moves closer to a large body of water.
What is radiation fog?
What is radiation fog?
Radiation fog forms on cloudless nights with only very light winds and high relative humidity when the cold ground cools the air above it to its dew point causing condensation (fog).
Usually occurs inland in valleys and low lying areas (as these areas tend to have more moisture) and usually occurs in a high pressure system.
Approach category speeds are defined by which formula?
Approach category speeds are defined by which formula?
This speed is defined to be equal to the greater of stall speed (Vso) multiplied by 1.3, or stall speed (Vs1g) multiplied by 1.23.
The landing configuration that is to be taken into consideration can be defined by either the operator or by the aeroplane manufacturer but is most commonly assigned by the manufacturer.
How does an altimeter work and which errors can an altimeter experience?
How does an altimeter work and which errors can an altimeter experience?
When an aircraft climbs, the static pressure in the instrument case decreases, which allows the enclosed capsule to expand.
This in turn moves the needle on the instrument to indicate a corresponding altitude.
During descent, the opposite function applies.
Altimeter errors can originate and vary from:
Instrument Pressure Time-lag Barometric Density Temperature Blocked static port
What is the mean camberine?
What is the mean camberine?
a line extending from the leading edge to the trailing edge equidistent from the upper and lower surface of the aerofoil.