fitness88 Posted October 13, 2014 Author Posted October 13, 2014 That is a good book answer, but as far as real life, the wings are usually dry before tank 1 is. There might be a 200 lb difference between WTs and FTs, but I thought the wing tanks would be completely empty before any fuselage tanks started being used. TAre you saying this source book is not accurate?
Rainmaker Posted October 13, 2014 Posted October 13, 2014 There might be a 200 lb difference between WTs and FTs, but I thought the wing tanks would be completely empty before any fuselage tanks started being used. TAre you saying this source book is not accurate? I am not saying the system wasn't designed that way, but speaking off experience, the wings are normally empty well before tank 1 is dry. As far as externals go, no that is not the case necessarily. All the tanks attempt to transfer simulataneously. That just creates positive fuel flow to the feed tanks. Fuel consumption rates can vary how everything tranferrs out, so there is really no sequence set in stone. The only real caveat that I know of concerns CFTs, and that deals with the autotransfer function. All that does is shut off the four CFT transfer pumps when tank 1 is above a certain fuel level. As the level drops, CFT pumps are turned back on. That is applicable to the E model, but not even sure about the C. As I mentioned before, the only thing that is really monitored for is that none of them fail to transfer or that there is an imbalance.
fitness88 Posted October 13, 2014 Author Posted October 13, 2014 I am not saying the system wasn't designed that way, but speaking off experience, the wings are normally empty well before tank 1 is dry. As far as externals go, no that is not the case necessarily. All the tanks attempt to transfer simulataneously. That just creates positive fuel flow to the feed tanks. Fuel consumption rates can vary how everything tranferrs out, so there is really no sequence set in stone. The only real caveat that I know of concerns CFTs, and that deals with the autotransfer function. All that does is shut off the four CFT transfer pumps when tank 1 is above a certain fuel level. As the level drops, CFT pumps are turned back on. That is applicable to the E model, but not even sure about the C. As I mentioned before, the only thing that is really monitored for is that none of them fail to transfer or that there is an imbalance. Thank you Rainmaker for the follow-up information.
blkspade Posted October 13, 2014 Posted October 13, 2014 My issue has been that it always seemed illogical to feed from is to loiter. It makes the center tank basically pointless. If there is any level of control over that IRL, the SSM could account for it. Plus there is an offset in the wing tanks with no crossfeed functionality. Yet you can't actually idle an engine to induce balance. http://104thphoenix.com/
Not_G Posted October 18, 2014 Posted October 18, 2014 The center tank isn't pointless, it holds fuel. And having multiple fuel cells instead of one big one improves survivability. So its better to have the tanks transfer from one to the other than to risk having 1 bullet destroy the entire fuel system. IRL you have the ability to stop transfer on ext and wing tanks but that is meant for maintenance functions or component failure that to my knowledge isn't modeled in game for the F-15C as of now.
wingshigh.g Posted October 27, 2014 Posted October 27, 2014 I don't know if I was reading it right, but today when I was flying I took a look at the fuel quantity, when the internal fuel indicator was at two third, but my externals were still at 4700lbs? That means the externals are still full?
mvsgas Posted October 27, 2014 Posted October 27, 2014 What was showing the 4700? The needles or the totalizer? Where you flying on burner for long period of time? To whom it may concern, I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that. Thank you for you patience. Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..
mvsgas Posted October 27, 2014 Posted October 27, 2014 The most I can get on externals is 4100lbs, are you sure you where reading it correctly? To whom it may concern, I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that. Thank you for you patience. Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..
blkspade Posted October 27, 2014 Posted October 27, 2014 I don't know if I was reading it right, but today when I was flying I took a look at the fuel quantity, when the internal fuel indicator was at two third, but my externals were still at 4700lbs? That means the externals are still full? It means you forgot to raise your landing gear. Fuel won't flow from your externals while your gear is down. So you'll see the needle moving as the internal fuel gets depleted. If you raise your gear after this point, fuel will flow from the external back into the internal tanks. http://104thphoenix.com/
wingshigh.g Posted October 27, 2014 Posted October 27, 2014 Interesting point. Though I never forget raising the landing gear, I can't verify from external views as that is disabled in MP; I know I don't have problem doing that in SP. I should be able to tell from with the cockpit, lower left corner, correct?
blkspade Posted October 27, 2014 Posted October 27, 2014 Interesting point. Though I never forget raising the landing gear, I can't verify from external views as that is disabled in MP; I know I don't have problem doing that in SP. I should be able to tell from with the cockpit, lower left corner, correct? If you're not absolutely sure how to check without external views, then there is a good chance you failed to raise the gear that time. But yes next to the flaps indicator. I've had a couple times where I was quite sure I had raised my gear and didn't take time to glance down at the indicator. If my wingman hasn't already shouted at me about it, I pick up on it pretty much immediately after glancing at the fuel indicator. http://104thphoenix.com/
wingshigh.g Posted October 27, 2014 Posted October 27, 2014 OMG, all these time I had thought gear was up, but no it's not. I was wondering at one time why the gear light was on without thinking it actually meant the gear was still down. It turned out to be an error in my TM program... Thanks guys
wingshigh.g Posted October 27, 2014 Posted October 27, 2014 This leads me to another question: I know when I didn't retract the landing gear, I was at over 400knots. I had thought the landing gear will be damaged by then? I know I had landed the plane too. Is this correct in real life?
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