Pitot static system

Question 1

Vertical speed indicator

Answer 1

Diaphragm is vertical

When it expands the connected linkage moves the instrument needle

when the static port is blocked the vertical speed will read 0 and not change at all

diaphragm is connected to the static line

Calibrated leak is connected to the casing

Question 2

Altimeter

Answer 2

Directly influenced by the static pressure through the static port

Aneroid wafers sealed to 29.92 inches of Mercury

Mechanical linkage around wafers move with the expansion of the wafers due to pressure increase/ decrease

Question 3

Airspeed indicator

Answer 3

Directly influenced by the pitot tube

Horizontal diaphragm

Static port controls pressure to the air speed case

Pitot tube controls diaphragm expansion/ contradiction

Diaphragm is connected to the airspeed needle