Question 33-1 : Propellers and rotors...the pitch of a propeller blade is usually expressed in ? [ Report remote ]

Question 1

Question 33-1 : Propellers and rotors...the pitch of a propeller blade is usually expressed in ? [ Report remote ]

Inche.

Answer

The thin, smooth flow on the extrados, from the leading edge to the point of transition.

Answer

The thick and turbulent flow on the extrados, after the point of transition.

Answer

Cord line.

Question 2

Question 33-2 : Propellers and rotors...the geometric pitch of a propeller is the ?

Distance a propeller blade element is travelling in forward direction in one propeller revolution.

Question 3

Question 33-3 : Propellers and rotors...propeller efficiency may be defined as the ratio between ?

Power available / power required.

Question 4

Question 33-4 : Propellers and rotors...a propeller blade is twisted, so as to ?

Equalize the lift over the entire length of the blade.

Question 5

Question 33-5 : The statement that best describes the effect of the center of gravity on the aircraft stability is ?

A forward center of gravity increases the natural stability of an aircraft.

Question 6

Question 33-6 : Indicate how the conventional multicopter controls its attitude ?

The engines change their rotational speed rpm according to the desired direction of flight.

Question 7

Question 33-7 : The ground effect ?

Reduces induced drag.

Question 8

Question 33-8 : The laminar layer on a wing profile is ?

Question 9

Question 33-9 : The turbulent layer on a wing profile is ?

Question 10

Question 33-10 : The imaginary line joining the leading and trailing edge of the wing is called ?

Question 11

Question 33-11 : The part of the wing, shown by the arrow, is. 55 ?

A flap.

Question 12

Question 33-12 : Spoiler extension for a fixed wing drone causes ?

An increase in drag and decrease in lift.

Question 13

Question 33-13 : Induced drag is associated with ?

Lift.

Question 14

Question 33-14 : Parasit drag is associated with ?

The friction of the relative airflow on the contour of the aircraft.

Question 15

Question 33-1 : Propellers and rotors...the pitch of a propeller blade is usually expressed in ? [ Report remote ]

Inche.

Question 33-2 : Propellers and rotors...the geometric pitch of a propeller is the ?

Distance a propeller blade element is travelling in forward direction in one propeller revolution.

Question 33-3 : Propellers and rotors...propeller efficiency may be defined as the ratio between ?

Power available / power required.

Question 33-4 : Propellers and rotors...a propeller blade is twisted, so as to ?

Equalize the lift over the entire length of the blade.

Question 33-5 : The statement that best describes the effect of the center of gravity on the aircraft stability is ?

A forward center of gravity increases the natural stability of an aircraft.

Question 33-6 : Indicate how the conventional multicopter controls its attitude ?

The engines change their rotational speed rpm according to the desired direction of flight.

Question 33-7 : The ground effect ?

Reduces induced drag.

Question 33-8 : The laminar layer on a wing profile is ?

The thin, smooth flow on the extrados, from the leading edge to the point of transition.

Question 33-9 : The turbulent layer on a wing profile is ?

The thick and turbulent flow on the extrados, after the point of transition.

Question 33-10 : The imaginary line joining the leading and trailing edge of the wing is called ?

Cord line.

Question 33-11 : The part of the wing, shown by the arrow, is. 55 ?

A flap.

Question 33-12 : Spoiler extension for a fixed wing drone causes ?

An increase in drag and decrease in lift.

Question 33-13 : Induced drag is associated with ?

Lift.

Question 33-14 : Parasit drag is associated with ?

The friction of the relative airflow on the contour of the aircraft.

Question 33-15 : Wing stall occurs when we exceed ?

Its critical angle of attack.