Hi guys!!!
Can you help me to answer to the following questions?
19 days to go and still i lot of unanswered questions
1) Basic mass: 1 200 kg ; Basic balance arm: 3.00 m
Under these conditions the Basic centre of gravity is at 25% of the mean aerodynamic chord (MAC). The length of MAC is 2m.
In the mass and balance section of the flight manual the following information is given:
Position Arm
front seats: 2.5 m
rear seats: 3.5 m
rear hold: 4.5 m
fuel tanks: 3.0 m
The pilot and one passenger embark; each weighs 80 kg. Fuel tanks contain 140 litres of petrol with a density of 0.714. The rear seats are not occupied. Taxi fuel is negligible.
The position of the centre of gravity at take-off (as % MAC) is:
a)34
b)29
c)22
d)17
2 ) Length of the mean aerodynamic chord = 1 m
Moment arm of the forward cargo: -0,50 m
Moment arm of the aft cargo: + 2,50 m
The aircraft mass is 2 200 kg and its centre of gravity is at 25% MAC
To move the centre of gravity to 40%, which mass has to be transferred from the forward to the aft cargo hold?
a)110
b)183
c)165
d)104
3)An aeroplane with a two wheel nose gear and four main wheels rests on the ground with a single nose wheel load of 500 kg and a single main wheel load of 6000 kg. The distance between the nose wheels and the main wheels is 10 meter.
How far is the centre of gravity in front of the main wheels?
a) 4 meters
b) 40 cm
c) 25 cm
d) 41.6
thank you all!!!
