Airspeed Calculations

Question 1

Dynamic pressure at the pitot will be greater than it should be due to it being compressed, over an airspeed of?

This is called?

Answer 1

TAS 300

Compressibility

Question 2

in terms of correction. Compressibility is always a -

Answer 2

negative correction

Question 3

How to solve:

RAS 100, OAT +10°, altitude 7000ft. Determine TAS.

Answer 3

Rotate the dial until 7 000ft is lined up with +10°. Make sure it is (+) and not (-)! Without further rotating the scale, locate the RAS on the inside (time) scale, and immediately opposite on the outside scale will be the TAS -113 kts.

Question 4

Adding the compressibility factor to RAS will equal -

Answer 4

EAS

Question 5

OAT is -

Answer 5

The actual outside air temperature

Question 6

IOAT is -

Answer 6

indicated outside air temperature. Read from the gauge - it may suffer from compressibility.

Question 7

Ambient temperature -

Answer 7

another way of saying OAT

Question 8

In the event that a temperature is not provided, the formula TAS =

Answer 8

RAS + 2% per 1 000ft. This is not very accurate.

Question 9

Distance out =

Answer 9

Delay(in minutes) x old GS x new GS / 60 x Difference in GS

Question 10

If the ROC = Constant, and the RAS = Variable:

In order to find the TAS, the pressure altitude used should be -

And if the departure altitude is above sea level, this elevation need to added to -

Answer 10

divided by 2

The pressure altitude used for the calculation

Question 11

If the ROC = Variable, and the RAS = Constant:

In order to find the TAS, the pressure altitude used should be -

And if the departure altitude is above sea level, this elevation need to added to -

Answer 11

2/3 of the pressure altitude given.

The pressure altitude used for the calculation

Question 12

Calculating TAS with RAS on descent will always be a -

Answer 12

constant ROD