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Nav - Computations

Total questions: 41

Worksheet time: 21mins

Name
Class
Date
1.

Using you navigation computer calculate: 400 x 16 =

a)

6400

b)

641

c)

6500

d)

635

2.

Using your navigation computer calculate: 156 / 19 =

a)

29.6

b)

2.96

c)

82

d)

8.2

3.

What is the groundspeed of an aircraft that travels 78nm in 53min?

a)

88kts

b)

78kts

c)

68kts

d)

58kts

4.

How long does it take an aircraft with a groundspeed of 95kts to travel 70nm?

a)

32min

b)

1h05min

c)

58min

d)

44min

5.

You measure 23cm on a chart with a chart scale of 1:250,000, what is this in Earth distance (km)?

a)

5.75km

b)

80.6km

c)

806km

d)

57.5km

6.

138L into US gal?

a)

365

b)

36.5

c)

280

d)

28

7.

25 Imp gal of fuel to kg?

a)

10.4

b)

8.2

c)

104

d)

82

8.

75L of AVGAS into kg?

a)

54

b)

69

c)

750

d)

75

9.

190nm into sm?

a)

202

b)

208

c)

218

d)

220

10.

Your aircrafts fuel consumption rate is 39L/hr, how many L will be consumed in 1h38mins?

a)

60

b)

64

c)

70

d)

74

11.

What is the aircrafts fuel consumption rate if 59L are missing after 85mins?

a)

41.6

b)

52.8

c)

59.7

d)

63.2

12.

1390m to feet?

a)

7076

b)

4560

c)

3280

d)

8880

13.

65sm to km?

a)

10.5

b)

9.55

c)

1950

d)

105

14.

160 US gal of fuel to kg?

a)

43.6

b)

436

c)

89.3

d)

893

15.

What wind has affected your aircraft:

120kts GS

300°T track

Variation 20°E

105kts TAS

Drift 14°R

a)

352/19

b)

188/25

c)

176/33

d)

060/5

16.

What wind has affected your aircraft:

90kts GS

035°M track

Variation 13°W

115kts TAS

Drift 8°L

a)

067ºM/30

b)

130ºM/15

c)

078ºT/9

d)

334ºT/18

17.

Calculate the heading and GS:

140°T/19kts

180°M TRK

Variation 10°W

145kts TAS

a)

129kts, 176ºM

b)

129kts, 184ºM

c)

116kts, 176ºM

d)

116kts, 184ºM

18.

Calculate the heading and GS:

279°T/19kts

005°T TRK

Variation 10°W

95kts TAS

a)

290ºT, 108kts

b)

016ºT, 108kts

c)

268ºT, 92kts

d)

354ºT, 92kts

19.

Determine the headwind and crosswind:

Possible runways - 060, 240

Wind - 360/16kts

a)

12kts, 6kts

b)

6kts, 12kts

c)

8kts, 13kts

d)

15kts, 8kts

20.

Determine the headwind and crosswind:

Possible runways - 130, 310

Wind - 090/35kts

a)

18kts, 20kts

b)

20kts, 18kts

c)

22kts, 27kts

d)

27kts, 22kts

21.

Convert 22 degrees Celsius to degrees Fahrenheit

a)

72ºF

b)

70ºF

c)

75ºF

d)

74ºF

22.

You are going to descend from 8500' to 1500'. Based on your groundspeed, this will take you 8 minutes. What should your rate of descent be?

a)

875 ft/min

b)

87.5 ft/min

c)

885 ft/min

d)

88.5 ft/min

23.

If you set heading overhead Queenstown at 2000ft AMSL and will climb to 8000ft AMSL, what altitude should you take the wind from?

a)

6000ft

b)

5000ft

c)

4000ft

d)

7000ft

24.

CAS: 150kt

Pressure altitude: 5500ft

OAT: -25°C

What is TAS?

a)

156kts

b)

160kts

c)

146kts

d)

140kts

25.

Your flight plan has you descending from 9000ft down to 3000ft to arrive overhead Glentanner aerodrome. What temperature and wind will you use?

a)

29033 MS02

b)

27033 MS05

c)

29033 MS05

d)

31020 MS02

26.

Reserve fuel is taken at what consumption rate?

a)

Cruise consumption

b)

Holding consumption

c)

Circuit and landing consumption

d)

Taxi consumption

27.

The specific gravity of AVGAS is?

a)

0.72

b)

0.80

c)

0.76

d)

0.78

28.

If you have to climb from 3000ft to 6000ft and your aircraft climbs at a dismal 250ft per minute, how many minutes will it take to climb?

a)

12 min

b)

8 min

c)

3 min

d)

9 min

29.

You're at a pressure altitude of 5000ft with the RPM set for cruise at 2400rpm. The temperature is 20° above standard. What is your fuel consumption in GPH?

a)

6.85 GPH

b)

6.7 GPH

c)

7 GPH

d)

7.6 GPH

30.

Your fuel consumption rate is 33 liters an hour and you want to know how much fuel you'll burn on a specific leg. The leg is 112nm and you have a ground speed of 105kt.

a)

35.2L

b)

38.2L

c)

30.2L

d)

40.2L

31.

You are maintaining a track of 100°M by holding a heading of 110°M. The weather up ahead doesn't look very good and you decide to turn around. What heading should you set on the way back?

a)

280ºM

b)

290ºM

c)

270ºM

d)

105ºM

32.

Calculate PNR time and distance for a daytime flight between NZUK and NZNS given the following:

Fuel loaded: 266L

Fuel burn: 38L

TAS: 310kt

Winds NZUK to PNR: +35kt

Winds PNR to NZNS -20kt

a)

2.9 hours 1000nm

b)

2.5 hours 863nm

c)

3.2 hours 1104nm

d)

4.6 hours 1587nm

33.

Calculate ETP time and distance for a daytime flight between A and B given the following:

Total distance: 550nm

TAS: 240kt

Winds A to ETP: +15kt

Winds ETP to B -15kt

a)

275nm 69min

b)

255nm 50min

c)

295nm 77min

d)

315nm 85min

34.

You are flying from A to B. You find that your position is 60 nm outbound from A and 7 nm left of the required track. What is your track error angle?

a)

7ºR

b)

7ºL

c)

14ºR

d)

14ºL

35.

Calculate PNR given the following information for a daytime flight from NZCH to NZHM (Hanmer).

Fuel load: 120L

Fuel burn: 30L an hour

TAS: 120kt

Wind from NZCH to PNR: -20kt

Wind from PNR to NZHM: +10kt

a)

2hrs

b)

1.5hrs

c)

2.5hrs

d)

3hrs

36.

NZCH to NZAS (Ashburton)

Total distance: 82nm

TAS: 115kt

Wind from NZCH to ETP: +10kt

Wind from ETP to NZAS: +15kt

What is ETP distance from NZAS?

a)

36km

b)

46nm

c)

36nm

d)

46km

37.

You plan a day trip from NZCH to NZWS (Westport) in your Texan. It has a TAS of 315kt and a fuel consumption of 30GHP. You load on 110 gallons and check your flight plan which states a total ditance of 132nm and a tailwind of 18kt from NZWS to NZCH. What is PNR and ETP distance?

a)

PNR = 700nm ETP = 500nm

b)

PNR = 50nm ETP = 70nm

c)

PNR = 70nm ETP = 50nm

d)

PNR = 500nm ETP = 70nm

38.

You plan a night-time flight from NZCH to NZHK (Hokitika) which is 102nm total distance. Your TAS is 105kt and you have a wind of +15kt. If you load up 100L of fuel and your fuel burn is 36L an hour, what is PNR distance and ETP time?

a)

PNR = 0.84 ETP = 44nm

b)

PNR = 100nm ETP = 22 minutes

c)

PNR = 50 minutes ETP = 44nm

d)

PNR = 60nm ETP = 25 minutes

39.

55 x 123

a)

6760

b)

676

c)

7150

d)

686

40.

7500 / 280

GIVE ANSWER IN 1 DECIMAL PLACE

(a)  

41.

What is the VFR legal fuel required for a day flight?

a)

30min

b)

10% of the flight time

c)

45min

d)

Enough to get to the alternate aerodrome