how wind and propeller pitch affect aircraft performance

The vertical forces acting on an aircraft are ___ and ___

lift and weight

If thrust exceeds drag, the aircraft will _____

accelerate

The heading is the degrees, measured clockwise, between magnetic north and ______.

the direction the nose of the aircraft is pointing

Which of the following best describes an aircraft’s heading?

The degrees between magnetic north and the direction that the nose of the aircraft is pointing

The track is the degrees, measured clockwise, between magnetic north and ______.

the path of an aircraft over the ground

thrust is the effect of pushing air ____ in order for an aircraft to go ____.

backwards, forwards

The air gets caught by the propeller blade at a certain angle (______), and it is pushed, creating ____.

angle of attack, thrust

Propeller pitch is determined by _____ and corresponds to the direction an aircraft will travel forward in ______.

angle of attack, one revolution

Coarse pitch is when the blade is set at a ____ angle of attack, which leads to _____ effective distance for a given RPM

large, greater

Coarse pitch provides ____ efficient cruising speed at a comparatively ____ RPM + power output

more, lower

Coarse pitch is better for _____, and fine pitch is better for _____.

cruise, take-off and climb

Fine pitch is when the propeller is set at a ____ angle of attack, leading to ____ drag and rotates at a _____ speed

lower, less, higher

Fixed pitch is when the blade angle is set by the manufacturer to give the ______ in ______

best performance possible, all phases of flight

Fixed pitch has a trade off between the best _____ with _____, and best _____ with _____

take-off performance, fine pitch, best cruise performance, coarse pitch

Fixed pitch is found on ____, ____, and ____

Cessna 150 (C150), Piper Cherokee 140 (P28A), Beechcraft Sundowner (BE23)

Variable pitch is used to enable the pilot to select the ______

most efficient pitch

What are the two types of variable pitch?

Adjustable and Controllable

Adjustable pitch is when prop blades can be adjusted ______

only on the ground

Controllable pitch is when prop blades can be adjusted ______

in-flight

The constant speed propeller is a ______ fitted with a _____.

constant speed propeller, governor

The governor in a constant speed propeller alters the blade angle to _______ for all phases of flight

maintain a constant RPM

When an aircraft with a constant speed propeller climbs, the blade angle of the propeller _____ just enough to prevent the engine speed from _____

decreases, decreasing

When an aircraft with a constant speed propeller descends, the blade angle _____ sufficiently to prevent _____ and, with the same throttle setting, the power output remains unchanged.

increases, overspeeding

Reversible pitch is achieved by turning the propeller blades to the _______ position to produce a _____ action rather than a ____ action.

full reverse pitch position, pushing, pulling

The purpose of reversible pitch is to decrease _____, improving aircraft ______ in the event of a rejected takeoff, and enables an aircraft to be ____ under its own power

landing distance, stopping performance, reversed

As a safety feature, the _____ must be in contact with the ground before the pilot is able to select reverse pitch.

nose wheel

It is desirable to feather the propeller when it necessary to _____

stop an engine

Feathering an engine entails turning the blades to ______ to stop it from _____.

extreme coarse pitch, rotating

Feathering the propeller reduces ____, stops ____, and reduces _____.

drag, windmilling, excessive vibration

Feathering is used to reduce drag in the event of _____ or to ______ rotating the propeller when the aircraft is not in use.

an engine loss, prevent wear caused by the wind

To produce more power for takeoff, a propeller should be set at a ______.

fine pitch

When an aircraft climbs, the blade angle of a constant speed propeller _____.

decreases