ASI Flashcards Preview

Basic Instruments > ASI > Flashcards

Flashcards in ASI Deck (14):
1

1kt is also equal to?

1NM/hr
1.852km/hr
1.151SM/hr ('miles per hour')

2

ASI uses which pxs?

Dynamic and static px.

3

ASI gauge:

white arc indicates -

Flap operating range

Lower end VS0
Higher end VFE

4

ASI gauge:

Green arc -

Normal operating speed range

Lower end: VS1
higher end VNO

5

ASI gauge:

red arc:

VNE is the never exceed speed

6

ASI gauge:

What do the blue and 2nd red line indicate in a light twin?

Both blue and 2nd red line are in the slower speed range.

Blue = VYSE
2nd red = VMCA

7

To calibrate the ASI, it has to be set at a px level, but this will only be accurate if S and L so...

ASI under reads the TAS at altitude.

The discrepancy is called density error. If below MSL, the ASI will over read the TAS.

8

What errors are there on an altimeter?

IMP,
Compressibility (> 300TAS)
Density

9

What acronym is used for blockages in an ASI?

PUDSOD.

Pitot blocked, under read (capsule contracts)

Static blocked, over read (capsule expands)

10

What happens to the ASI when there is a pitot leak?

Under reads (within px hull)
Over reads (outwith

11

Compressibility in an ASI will cause the ASI to...

Over indicate

12

VFE is the max speed that....

The flaps can be operated.

13

VLE is the max:

Flight speed with LDG gear down

14

VLO is the max:

Speed at which the LDG gear can be operated with full safety.