What is advection fog?
What is advection fog?
Advection fog occurs when moist air passes over a cool surface by advection (wind) and is cooled.
It is common as a warm front passes over an area with significant snowpack, but it is most common at sea when tropical air encounters cooler waters, including areas of cold water upwelling, such as along the coast of California.
How does the all moving stabilator work on the Boeing 737 compared a fixed horizontal stabilizer of, for example, the Seneca?
How does the all moving stabilator work on the Boeing 737 compared a fixed horizontal stabilizer of, for example, the Seneca?
A moving stabilator allows for wider operating range of the control surface, which is of great importance in aircraft with a large range of operating speeds.
Compared to a fixed horizontal stabilizer, when trimmed, the moving stabilitor will produce less drag, reducing fuel consumption.
What are SOP's? And why do you think Airlines have SOP's?
What are SOP's? And why do you think Airlines have SOP's?
SOP's are Standard Operating Procedures, they provide safety, uniformity and work ethics.
What are the effects on the human body in case of depressurisation?
What are the effects on the human body in case of depressurisation?
Hypoxia, a lack of oxygen to tissues of the body due to low partial pressure at altitude.
Symptoms are: blue lips, apparent personality change, impaired judgement, muscular impairment, short term memory loss, sensory loss, hyperventilation, unconsciousness.
Other possible effects:
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Baurotrauma
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Lung damage
What is the difference between angle of attack and angle of incidence?
What is the difference between angle of attack and angle of incidence?
Angle of attack is the angle between the chord of the aerofoil and the relative airflow.
Angle of incidence is the angle between the chord and the aircrafts longitudinal datum.
What is windshear?
What is windshear?
Windshear is a change of wind speed and/or direction from place to place, including updraughts and down draughts.
It is ussualy characterized by a strong change over a short distance. Windshear can effect the flight path and airspeed and can be hazardous.
Do single engined planes have a VMCG?
Do single engined planes have a VMCG?
No, VMCG is defined as the minimum control speed on the ground, with one engine inoperative (critical engine on two engine airplanes), takeoff power on other engine(s), using aerodynamic controls only for directional control and thus only applicable to ME aircraft.
Where does a swept wing stall first?
Where does a swept wing stall first?
At the tip
What is the range of a VOR?
What is the range of a VOR?
VOR stations are fairly short range: the signals are line of sight between transmitter and receiver and are useful for up to 200 miles.
Each station broadcasts a VHF radio composite signal including the navigation signal, station's identifier and voice, if so equipped.
What are winglets and what is the advantage of winglets?
What are winglets and what is the advantage of winglets?
They are aerodynamically efficient surfaces located at the wing tips, designed to reduce induced drag and increase fuel efficiency.
They increase efficiency by reducing the size of the wingtip vortices, which are created by the difference between the pressure on the upper surface of the wing and that on the lower surface.