Flight planning question
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Join Date: May 2002
Location: U.K.
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Flight planning question
Can any one help me with this question?
Planning a flight from Paris-London for a twin-jet aeroplane.
Preplanning:
MTOM = 62,800kg
MZFM = 51,250
MLM = 54,900
MTM = 63,050
Assume the following
Trip fuel = 1,800kg
Alternate = 1,400
Holding fuel (final reserve) = 1,225
DOM = 34,000
Traffic load = 13,000
Catering = 750
Baggage = 3500
Find the take-off mass.
Answer given as 51,515 kg
The answer that I keep on getting is 51 425kg, which is one of the answers given.
I'm working it out as follows
DOM+Traffic+Trip fuel+Alternate+Holding = 51,425 kg
Where am I going wrong?
Thanks for your help.
Planning a flight from Paris-London for a twin-jet aeroplane.
Preplanning:
MTOM = 62,800kg
MZFM = 51,250
MLM = 54,900
MTM = 63,050
Assume the following
Trip fuel = 1,800kg
Alternate = 1,400
Holding fuel (final reserve) = 1,225
DOM = 34,000
Traffic load = 13,000
Catering = 750
Baggage = 3500
Find the take-off mass.
Answer given as 51,515 kg
The answer that I keep on getting is 51 425kg, which is one of the answers given.
I'm working it out as follows
DOM+Traffic+Trip fuel+Alternate+Holding = 51,425 kg
Where am I going wrong?
Thanks for your help.
Join Date: Feb 2002
Location: oxford
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You've forgotten to add contingency fuel. 5% of 1800 is 90 kg. Add that to your total and you get the right answer.
You can't ignore contingency fuel. You are required by law to carry it. Even if it's not mentioned in the question, you're supposed to add it automatically.
You can't ignore contingency fuel. You are required by law to carry it. Even if it's not mentioned in the question, you're supposed to add it automatically.
! I'll know for next time.
