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PPL Course - (1) First Solo > Chapter 6.3 - Calculations & Conversions > Flashcards

Chapter 6.3 - Calculations & Conversions Flashcards

1
Q

What does WV stand for?

A

Wind Velocity.

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2
Q

What does WV express?

A

Wind Speed and Direction.

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3
Q

Express WV for 230/15?

A

Wind Direction is coming 230° at a Speed of 15kt.

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4
Q

What is Wind Angle?

A

Angle between Wind Direction and Takeoff/Landing Direction.

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5
Q

How do you calculate Wind coming from the Left of an Aircraft?

A

Subtract Wind Direction from Runway Direction.

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6
Q

How do you calculate Wind coming from the Right of an Aircraft?

A

Subtract Runway Direction from Wind Direction.

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7
Q

If Wind Angle is greater than 90° what component is a pilot facing?

A

Tailwind.

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8
Q

The Speed of Wind Components must be calculated so that pilot can do what (2)?

A
  • Work out Crosswind Component vs Maximum Crosswind of the Aircraft.
  • Headwind/Tailwind Component can be used in Performance Charts of an Aircraft.
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9
Q

What does WS stand for?

A

Wind Speed.

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10
Q

What’s the percentage of Headwind and Crosswind with Wind Angle between 0° – 20°?

A
  • Headwind = 100%.

- Crosswind = 0%.

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11
Q

What’s the percentage of Headwind and Crosswind with Wind Angle between 20° – 40°?

A
  • Headwind = 90%.

- Crosswind = 50%.

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12
Q

What’s the percentage of Headwind and Crosswind with Wind Angle between 40° – 50°?

A
  • Headwind = 70%.

- Crosswind = 70%.

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13
Q

What’s the percentage of Headwind and Crosswind with Wind Angle between 50° – 70°?

A
  • Headwind = 50%.

- Crosswind = 90%.

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14
Q

What’s the percentage of Headwind and Crosswind with Wind Angle between 70° – 90°?

A
  • Headwind = 0%.

- Crosswind = 100%.

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15
Q

What’s the percentage of Tailwind and Crosswind with Wind Angle between 90° – 110°?

A
  • Tailwind = 0%.

- Crosswind = 100%.

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16
Q

What’s the percentage of Tailwind and Crosswind with Wind Angle between 110° – 130°?

A
  • Tailwind = 50%.

- Crosswind = 90%.

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17
Q

What’s the percentage of Tailwind and Crosswind with Wind Angle between 130° – 140°?

A
  • Tailwind = 70%.

- Crosswind = 70%.

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18
Q

What’s the percentage of Tailwind and Crosswind with Wind Angle between 140° – 160°?

A
  • Tailwind = 90%.

- Crosswind = 50%.

19
Q

What’s the percentage of Tailwind and Crosswind with Wind Angle between 160° – 180°?

A
  • Tailwind = 100%.

- Crosswind = 0%.

20
Q

What’s the conversion factor for M to Ft?

A

1M = 3.3FT.

21
Q

What’s the conversion factor for NM to KM?

A

1NM = 1.9KM.

22
Q

What’s the conversion factor for KG to LBS?

A

1KG = 2.2LBS.

23
Q

What’s the conversion factor for US Gal to L?

A

1US Gal = 3.8L.

24
Q

How should you round up Fuel Volumes for Litres and US Gallon?

A
  • Litres to the next whole number.

- US Gallon to the next half number.

25
Q

What is the Specific Gravity Ratio?

A

Weight of Unit Fuel to Weight of Same Volume in Pure Water.

26
Q

What is the Specific Gravity of AVGAS?

A

SG = 0.70.

27
Q

What is the Specific Gravity of Aviation Oil?

A

SG = 0.90.

28
Q

How can a pilot find the Local QNH?

A

By turning the subscale setting until the Altimeter indicates the level of Elevation of the Aerodrome.

29
Q

How can a pilot find the Pressure Height at an Aerodrome?

A

Set the Pressure Setting Scale to 1013 hPa. The reading on the Altimeter is the Pressure Height.

30
Q

How can a pilot find the Elevation of an Aerodrome when QNH is known?

A

Set the Pressure Setting Scale to Local/Area QNH. The reading on the Altimeter is the Pressure Height.

31
Q

What does PH stand for?

A

Pressure Height.

32
Q

How do you find the Pressure Height?

A

The Altimeter reading when the pressure subscale setting is set at 1013 hPa.

33
Q

What is the International Standard Atmosphere Mean Sea Level Datum?

A

1013 hPa.

34
Q

As Atmospheric Pressure decreases by 1 hPa, how much height is increased?

A

30ft.

35
Q

When QNH is less than 1013 hPa what calculation is made to Elevation?

A

Add.

36
Q

When QNH is more than 1013 hPa what calculation is made to Elevation?

A

Subtract.

37
Q

If a pilot wants to know the Height what do you need to set on the Altimeter?

A

Pressure.

38
Q

If a pilot wants to know the Pressure what do you need to set on the Altimeter?

A

Height.

39
Q

How is Density Height determined from (2)?

A
  • Pressure Height.

- Outside Air Temperature.

40
Q

What does OAT stand for?

A

Outside Air Temperature.

41
Q

How many Degree Celsius is added on top of the International Standard Atmosphere Temperature at Sea Level?

A

15°.

42
Q

For every 1000ft gained what happens to Degrees Celsius?

A

Reduces by 2°.

43
Q

For every 1000ft lost what happens to Degrees Celsius?

A

Increases by 2°.

PPL Course - (1) First Solo (31 decks)

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