VSI

Question 1

Vertical speed indicator VSI

Answer 1

vertical speed indicator measure the rate of change in altitude(pressure) Vz= Ps’-Ps/t

Question 2

VSI error

Answer 2

Instrument
position
manouvre
time lag > few seconds to move for the time taken to build up a
steady pressure difference on climb or descent

Question 3

IVSI error

Answer 3

instrument 
manouvre
position
turning error
over sensibility in turbolence
first seconds under read

Question 4

IVSI Instantaneous VSI

Answer 4

a VSI + vertical accelaration => pump acceloremeter unit, used to reduce timelag

As the initial acceleration is turned into a steady rate of descent, the piston will slowly descend
to its original position, but by this time the correct differential pressure between the capsule
and the case will have been set up and the correct rate of descent will continue to be shown

Question 5

Rate of Descend ROD

Answer 5

vertical component ROD= GS * Θ * 100
GS  NM/min = TAS + Wv
Θ angle of descend
ROD = GS*5    IF Θ = 3(OPTIMUS ANGLE OF DISCEND) 
ROD = GS *5*Θ/3 IF Θ DIVERSO DA 3

Question 6

blockage

Answer 6

STATIC it will read 0

PITOT * doesn’t affect

Question 7

leaks

Answer 7

unpressure little effect

pressurized - it can not be use anymore