Mccauly Propellers

Question 1

two types of McCauly constant-speed propeller

Answer 1

Threaded series and Thread-less Series

Question 2

Whats the difference between the threaded and thread-less series?

Answer 2

For threaded series a retention nut threads onto the propeller hub, while in a thread-less series a split retainer ring is used to hold each blade.

Question 3

What is used to increase propeller blade angle in a McCauly Constant speed prop?

Answer 3

Oil pressure

Question 4

What decreases the blade angle in a McCauly Constant Speed Prop?

Answer 4

Centrifugal force and an internal spring

Question 5

The ____ directs high pressure oil to the propeller hub to increase the propeller blade angle

Answer 5

Governor

Question 6

Why is the governor control lever spring-loaded to the high speed setting?

Answer 6

For safety purpose, if the prop control cable breaks the prop blades automatically returns to low pitch

Question 7

two types of Hartzell constant speed propeller

Answer 7

steel hub and compact model

Question 8

____ is similar to a Hamilton-Standard constant-speed propeller in that the pitch change mechanism is exposed

Answer 8

Steel hub propeller

Question 9

_____ propeller uses a combination of air pressure and centrifugal force acting on counterweights to increase the angle of the propeller blades and to feather it

Answer 9

Compact

Question 10

What is used to increase blade angle in a Hamilton Standard Constant Speed Prop?

Answer 10

Centrifugal force acting on the counterweights

Question 11

What is used to decrease blade angle in a Hamilton Standard Constant Speed Prop?

Answer 11

Oil Pressure

Question 12

in case of engine failure, the propeller continues to windmill. To help eliminate the drag created by a windmilling Propeller what do the pilot do?

Answer 12

Rotates the propeller blade 90 degrees (feathering)

Question 13

What is a constant-speed propeller used on multi-engine aircraft that has a mechanism to change the pitch to an angle of approximately 90° ?

Answer 13

Feathering propellers

Question 14

What does a feathering propeller use to take the prop to a low (fine) pitch?

Answer 14

Oil pressure

Question 15

What does a feathering propeller use to take the prop to a high (coarse) pitch?

Answer 15

Counterweights springs and compressed air

Question 16

On most aircraft, feathering functions are _____

of constant-speed operation

Answer 16

independent

Question 17

The ability of the propeller to go into feather relies on the?

Answer 17

Governor