Mass & Balance questions
Can anyone help me here? Am I missing something? I have no clue how the answers of these questions were arrived at (source - OAT exam prep CD-ROM)
1) Using the data for the aircraft below, assuming that the traffic load to be carried is as shown, what will be the block fuel for take off at MTOM?
Crew & equipment - 280kg
MTOM - 12154kg
MZFM - 3227kg
BEM - 1457kg
Start/taxi fuel - 250kg
Trip fuel - 8450kg
Flight duration - 3 hours
Pax - 720kg
Baggage - 4435kg
a) 7677kg
b) 8972kg
c) 9512kg
d) 9262kg
answer given = c)
2) A cuboid box of dimensions 0.8m x 0.8m is to be placed into an aircraft hold with a maximum distribution load intensity of 5000N/sqm.
What is the max. mass that can be loaded in the box? (assume that acceleration due to gravity is 10m/sec sq.
a) 800kg
b) 40kg
c) 400kg
d) 80kg
answer given = d
For this one I would have thought it was a simple question of ratios, ie.
MDLI= 500kg/sqm
therefore 500/1 = x/(0.8 x 0.8)
therefore x = 320kg, not given here....
where am i going wrong?
Cheers, FT