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Welcome to the CPL Performance question and answer forum. Please feel free to post your questions but more importantly also suggest answers for your forum colleagues. Bob himself or one of the other tutors will get to your question as soon as we can.
if your charter flight time from departure to destination is 104 minutes and destination to alternate is 42 minutes, what is the minimum fuel requirement at start up if the fuel flow is 85 litres/hr and taxi is 15 litres?
Sir could you just confirm if my calculation is ok..
As a suggestion, you might like to carry all your calculations to one decimal more than the final answer requires. So, for instance, should you want to obtain a final answer to the nearer litre, it would be appropriate to calculate (and carry forward) intermediate calculations to the first decimal point. In this way you minimise the effects of round off errors being carried through and muddying your final answer, somewhat.
There is little point in rounding off to the nearer litre for intermediate calculations and then providing the final answer to the first decimal (300.7). Were you to calculate to the first decimal throughout, you would end up with something closer to 300.3.
Engineering specialist in aircraft performance and weight control.