PL080 - Principles of Flight PPL(A)
PPl(A) base
PPl(A) base
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To increase up the pitch of the plane we should to do:
In which document are there information about the performance of the aircraft (helicopter, aircraft, etc.)?
In case when the propeller angle of attack(AoA) is equals the blade angle of the propeller it is true that:
In an quiet air, the glide-angle with off an engine during incease of aicraft load:
In a fixed straight horizontal flight the load factor of plane is:
In the fixed turn of plane the load factor "n" is:
As a achieving result of the glide-angle:
As a result of a slight increase of the angle of attack (AoA) over glide-angle:
As a result of a slightly increase the angle of attack (AoA) over glide-angle:
Aileron deflection to the left during the stall will cause:
Flap deflection is usually accompanied by
A graph the allegiance of the CD as a function of the CL Cl = f (Cx) performed on the basis of measurements during a flight, is called:
Which property is related to a decrease of airflow in the boundary layer of airofoil?
It is recommended that the change of cruising power to nominal (controllable pitch propeller (CPP) or variable pitch propeller) is made as follows:
It is recommended that the change of take off power to nominal (controllable pitch propeller (CPP) or variable pitch propeller) is made as follows:
An aircraft static margin of a static longitudinal stability this is:
The ability to self-acting return of airplane into equilibrium position after cessation of disturbance is called:
An aerodynamic twist angle of a wing is characterized by:
A geometric twist of a wing is characterized by:
Increasing the unit loading of the planform area causes:
Are cambered aerofoils much more "sensitive" to contamination than laminar profiles?
To prevent airleron flutter it is necessary to:
To prevent bending-torsional flutter it is necessary to:
To prevent airleron reversal it is necessary to:
To prevent buffeting it is necessary to:
An aerodynamic leading edge is a line joining the points of airfoil where:
Lack of airlerons mass balance during high-speed flight is a direct cause of:
Buffeting means:
An object moves with the speed V on a circular track. A double increase of the object's speed will cause the following:
An object moves with the speed V on a circular track. A double increase of the track's radius will cause the following:
An object moves with the speed "V" on a circular track with radius "R". The resultant acceleration vector is always directed:
Static pressure at the separation point (change from laminar flow to turbulent flow) is:
What does "the universal gas law" mean?
What dose the term " controllability " of a flying object ( plane, helicopter, glider, hang-glider etc) mean?
What does "stagnation pressure" mean?
What is a "laminar flow"?
What does the aircraft (helicopter, glider, etc.) "absolute ceiling" mean?
What does "static stability" of an object mean? (aircraft, helicopter, grinder, hang-grinder etc.)
What does "airfoil Center of Pressure" mean?
What does the boundary layer mean"
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Flashcards
A geometric twist of a wing is characterized by:
Increasing the unit loading of the planform area causes:
