Performance questions.

[Mohit_C]

Practicing some questions involving annexes I have come across the following three which I can't seem to get the right answer, apart from the fact that they're horribly printed:

Q247) (For this question use annex 032-6569A or Performance
Manual SEP 1 Figure 2.4)
With regard to the landing chart for the single engine
aeroplane determine the landing distance from a height
of 50 ft .
Given :
O.A.T : 27 °C
Pressure Altitude: 3000 ft
Aeroplane Mass: 2900 lbs
Tailwind component: 5 kt
Flaps: Landing position (down)
Runway: Tarred and Dry
A) approximately : 1120 feet
B) approximately : 1700 feet
C) approximately : 1370 feet
D) approximately : 1850 feet (mark scheme answer)




Q218) (For this question use annex 032-6581A or Performance
Manual SEP 1 Figure 2.3)
Using the climb performance chart, for the single engine
aeroplane, determine the ground distance to reach a
height of 2000 ft above the reference zero inthe
following conditions:
Given :
O.A.T. at take-off: 25°C
Airport pressure altitude: 1000 ft
Aeroplane mass: 3600 lbs
Speed: 100 KIAS
Wind component: 15 kts Headwind
A) 24 637 ft
B) 18 832 ft
C) 18 347 ft (mark scheme answer)
D) 21 505 ft




Q232) (For this question use annex 032-4733A or Performance
Manual MRJT 1 Figure 4.28)
What is the minimum field length required for the worst
wind situation, landing a twin jet aeroplane with the antiskid
inoperative?
Elevation: 2000 ft
QNH: 1013 hPa
Landing mass: 50 000 kg
Flaps: as required for minimum landing distance
Runway condition: dry
Wind:
Maximum allowable tailwind: 15 kt
Maximum allowable headwind: 50 kt
A) 2600 m.
B) 2700 m.
C) 2900 m.
D) 3100 m. (mark scheme answer)




Thanks.