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From the ground up workbook

Posted: Thu Jul 30, 2009 1:28 pm
by redwing
Just wondering for anyone who has the FGU workbook, on page 67, how did they calculate fuel burn enroute, and come up with a number of 0.4 under the "Fuel Calculation" heading?

Re: From the ground up workbook

Posted: Thu Jul 30, 2009 5:30 pm
by Tim
wanna post the question from the book?

Re: From the ground up workbook

Posted: Thu Jul 30, 2009 7:13 pm
by flyingdan
Here we go. I'm assuming OP is referring to question 1

EDIT: The answers are first then the question.

Re: From the ground up workbook

Posted: Thu Jul 30, 2009 7:32 pm
by AUGER9
Did they give you a fuel, distance, time to climb chart? In that segment, they're referring to the takeoff and fly to your SHP only. By the the time you level off at altitude, you likely only have a very short distance to go before you reach your SHP, in this case the VOR.

Re: From the ground up workbook

Posted: Thu Jul 30, 2009 7:42 pm
by redwing
Yes they did get that chart, but I am confused on how they got the 0.4 under fuel enroute to set heading point

and thanks flyingdan for posting a copy of the question :)

Re: From the ground up workbook

Posted: Thu Jul 30, 2009 7:50 pm
by flyingdan
No problem.


I didn't see the fuel, time and distance to climb in the workbook.

Just looking at the question I would assume that you only have a very short distance to go "en-route" to the destination point so that's why you only use 0.4 just like AUGER9 mentioned.

Re: From the ground up workbook

Posted: Thu Jul 30, 2009 8:11 pm
by AUGER9
What you want to do is measure the distance from the airport to the VOR. Then, determine with the chart, how many miles you cover while climbing up to 4500'. The difference between these is your "enroute" distance from the airport to the VOR. Use that distance to determine how long and how much fuel you use after levelling off.

Re: From the ground up workbook

Posted: Thu Jul 30, 2009 8:21 pm
by flyingdan
Keep in mind though that usually the GPH numbers given are reflective of an engine "leaned as per manufacturer's instructions." At least in real life. In the workbook it may be different.

Re: From the ground up workbook

Posted: Thu Jul 30, 2009 8:26 pm
by AuxBatOn
What's the climb distance from 300' to 4500'?

With that, I'll tell you what I got.