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Old 02-28-2018, 01:08 AM   #171
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I am, I asked YoYo.
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Old 02-28-2018, 12:50 PM   #172
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I am, I asked YoYo.
I do believe you both, but please explain it a bit more, how that percentage is calculated and which tank groups count in.

Anyway here is some real data (I hope) to work with so that the ppl debating the problem here can run their test flights against it. I will certainly do once I get home on saturday.
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Old 02-28-2018, 01:20 PM   #173
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What, 40% of fuel trapped? Cant be. 2% max. What gives wrong fuel readout? Chart or DCS?


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Old 02-28-2018, 01:39 PM   #174
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Apparently certain tanks (wing tanks for sure) are not considered 'internal fuel'. I didn't get a more detailed explanation unfortunately and I can't read the manual :/

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I do believe you both, but please explain it a bit more, how that percentage is calculated and which tank groups count in.

Anyway here is some real data (I hope) to work with so that the ppl debating the problem here can run their test flights against it. I will certainly do once I get home on saturday.
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Old 02-28-2018, 01:51 PM   #175
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In case you have a text in Russian, post it right here and I'll try to get a translation for you.
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Old 02-28-2018, 02:14 PM   #176
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^
Hwasp, could you post anything that you believe is relevant? I think you have a more complete manual than I do.
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Old 02-28-2018, 05:11 PM   #177
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Quote:
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Apparently certain tanks (wing tanks for sure) are not considered 'internal fuel'. I didn't get a more detailed explanation unfortunately and I can't read the manual :/
Manual says there are 3 options of refueling the plane.. full (forward, center, back & wings), basic (center & wings), partial (center).
So the graphs for example state.. 50% remaining of normal fueling, which could been interpreted as 50% of basic option.

tank forward - 3180 kg
tank center - 4160 kg
tank wings - 1060 kg
tank back - 1000 kg

Last edited by Vatikus; 02-28-2018 at 05:23 PM. Reason: added fuel tank volumes
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Old 02-28-2018, 05:24 PM   #178
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Fc3...
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Old 02-28-2018, 06:19 PM   #179
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Quote:
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Apparently certain tanks (wing tanks for sure) are not considered 'internal fuel'. I didn't get a more detailed explanation unfortunately and I can't read the manual :/
Someone once said that "the Su-27 carries its external fuel internally" .
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Old 02-28-2018, 06:23 PM   #180
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^
Hwasp, could you post anything that you believe is relevant? I think you have a more complete manual than I do.
Sorry but I only have my phone and tablet until saturday, and I can not upload anything from those for some reason.

The pages I have found interesting are 13/269 14/269 (limitations) 20/269 (flight envelope) and 51/269. Please have a look at those.

I think chapter 1 (limitation) and chapter 4 (maneuvers?) are the most relevant for us here, so if parts of it could be translated, it would be great
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