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HF13
24th Sep 2008, 17:36
Hi guys, any of you know how it works with the Integrated Cruise table of flight planning questions?
I don't know hot to put the image of the table over the thread..??
To be more specific these exercises are with Long Range tables with on the left column the weight, on the right the speed (TAS) in the middle all values of distance and time and in the first top horizontal column a few numbers that goes like this:
0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8
question usually request the quantity of the trip fuel.
If anybody knows how to work on these tables please let me know and i can send you the image via e-mail or i'll find an other way.
10 days to go for my Atpl test and there are a lot of this questions
Help please.:confused::confused::confused:
Hf13

Capt. Spock
24th Sep 2008, 19:15
Hey,

The method is explained on page 24 of CAP697. But it may be a bit confusing. It was to me anyway.

I hope this explanation helps.


EXAMPLE:

Aircraft mass at the top of climb 61,500kg
Distance 385nm
FL350,
Temperature ISA

Using long range cruise, how much fuel is required?

1. Look up CAP697 for FL350 - Pressure alttitude of 35,000ft. This can be found on page 33.

2. Then aircraft mass on top of climb is 61,500kg. On the left side of the table you have GROSS WT. kg. Go down on that to 61000. These weights are given in full thousands.

3. Then on the same level as GROSS WT. kg was, there is on the right hand side numbers 0 100 200 300 400 500 600 700 800 900. Go to 500 and from there straight down that column to the same level as 61000 is and you should have 5313.

So with 61500kg you have a cruise distance of 5313NM air miles.

4. Take 5313 and reduce the distance of 385 that was given in the question. It should give you 4928. Now find 4928 from the table. Which is located somewhere between 4921 and 4937.

5. Look left of 4921 and 4937 you see it's 59 000. And if you look on top of it you see it's between 100 and 200kg - so mean figure would be 150. So add up 59 000 and 150 and you get 59 150kg.

6. 61 500 minus 59 150 and you get 2350kg. Now you only have to adjust the 2350 with temperature. In this case temperature is ISA so 2350kg is the fuel you burn and final answer!

Was I able to make any sense? Best luck with the exam! :ok:

HF13
25th Sep 2008, 14:24
Capt. Spock, thanks a lot man!
Like you said it's a little confusing at first but with your example now i know to work with it.
I really appreciated.:ok: