COCKPIT

Question 1

What’s the formula to calculate the approach speed in landing configuration ?

Answer 1

1.3 VS0

Question 2

What are the increases in landing speed depending on surface wind ? (Vv)

Answer 2

Vv : Surface wind, including rafales
Vv<10kt = 0kt
10 kt <Vv< 20 kt = 5kt
Vv>20kt = 10kt

Question 3

What’s the relationship between speed and max bank angle ?

Answer 3

1.1 Vs = 5°
1.2 Vs = 10°
1.3 Vs = 20°
1.45 Vs = 35°
1.55 Vs = 45°
1.75 Vs = 60°
Limit passanger comfort = 30°

Question 4

When should we leave the turn to intercept the target heading ?

Answer 4

Angle of bank / 3

Question 5

How to convert convert slope rates/degree

Answer 5

Slope (%) x 0.6 = Slope (°)

Question 6

How to calculate vertical speed ?

Answer 6

Vz = Gs (kt) x slope (%)

Question 7

How to calculate the slope between 2 points ?

Answer 7

Slope (°) =[ ( Alt A - Alt B) (ft) / Distance (A;B) (Nm) ]/ 100

Question 8

Formula to calculate the height of clouds

Answer 8

H (ft)= (T(°C)-D) x 400

Question 9

What information can we extract from windsock ?

Answer 9

• Direction of the wind
• Runway in use
• Behavour of the wind

Question 10

Windsock : speed of the wind depending of the position ?

Answer 10

• Low position : Less than 5kt
• Approx 45° : Apprx 10 kt
• Approx 90° : Apprx 20kt
• High postion (>90°) : >25kt
• If the windsock make variable moves, EXPECT RAFALE

Question 11

How to calculate top of descent ?

Answer 11

• Diff altitude / 2 (empirique)
• My method :
  
  • Aim for 3°
    -Top of descent (Distance Nm from the beginning of TOD) = (Diff altitude/100) / 3

Question 12

What’s the name of JET fuel ?

Answer 12

Kérosène

Question 13

How is the AVGAS classified ?

Answer 13

It’s classified by octane number :
- Anti-knock capacity

Question 14

what are the standard fuel used refer to octane number ?

Answer 14

• Heptane : Indice 0 / very detonating
• Isooctane : Indice 100/ not very detonating

Question 15

What’s the density of AVGAS ?

Answer 15

0.72 Kg/L

Question 16

Specify the types of fuel used in aviation, their color, the octane number and type..?

Answer 16

• 80/87 : Red/Pink; Isooctane 80%, Heptane 20%
• 80 poor mixture ; 87 rich mixture
• 100/130 : Green; Isooctane 100%
• 100 poor mixture; 130 rich mixture
• 100LL (LowLead) : BLUE; Isooctane 100% full power,
• UL 91 (UnLead) : colorless; Isooctane 91% full power(0.75 Kg/L)

Question 17

What’s the density of JET fuel ?

Answer 17

0.78 Kg/L to 0.80 Kg/L

Question 18

What are the different JET fuel used in aviation and at what temperature freezes ?

Answer 18

• JET A-1 : -47°C
• JET A : -40°C, less expensive
• JET B : -50°C, Highly flammable