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Post by anderssamuelsson on Dec 30, 2009 20:34:23 GMT
Hello! I have a bit of a problem, I've downloaded the 727, all the gauges, sounds, panel etc. and it works fine with a small exception. When I fly it it uses the fuel from all the tank which means that it empties the wing tanks before the center tank goes empty. Is there a way to get it to use up the fuel in the center tank first? Thanks in advance! take-care Anders flightsimulatorfan.blogspot.com/ |
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Post by aerofoto - HJG Admin on Dec 30, 2009 21:17:51 GMT
I'm not sure to be honest .... and this's the first such query I recall seeing here regarding this !  George CARTY is probably the only person here whom can comment authoritively in respect of such panel/fuel tanking relationship issues. Mark C AKL/NZ |
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Post by christrott on Dec 30, 2009 22:12:18 GMT
(From my "how to fly the 727 guide" that was done many, many moons ago for my VA)
The proper way to fuel the airplane is to equally load fuel in all 3 tanks until the wings are full then the remainder in the center. For takeoff and landing, you should be feeding from all three tanks to their respective engines. Once established in climb and the wings are clean (flaps and slats up) you can reconfigure to burn down the center tank by opening the crossfeed valves for all three tanks and then turning off the pumps for the wing tanks. Once the center has reduced to the level of the wings, turn on all of the fuel pumps and close the crossfeed valves.
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Post by anderssamuelsson on Dec 31, 2009 6:53:14 GMT
Hello!
Thanks for the response, the problem is that I can't do that, if I configure it for crossfeeding and shut down the pumps for the wing tanks, they restart automatically after a few seconds.
take-care
Anders
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Post by aerofoto - HJG Admin on Dec 31, 2009 9:47:54 GMT
In that case .... you may have to live with this issue  Sorry aulde son  .... BUT .... I'm not sure if want you'd like to be able to do there (albeit correct procedure I know) can be so easily incorporated into these panels short of another major panel and FDE re-write .... only we/HJG have no further upgrades planned for any of these B727 panels. Mark C AKL/NZ |
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Post by anderssamuelsson on Dec 31, 2009 10:59:25 GMT
Thanks anyway |
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Post by jonm on Jul 1, 2011 13:02:33 GMT
Did a Seattle-Washington, DC flight yesterday in the 727-100. First time I flew far enough in the 727 to learn about this issue. I also tried shutting off the wing fuel pumps to burn the center fuel, and found they turned back on. In any event, the 727 panel really is excellent.
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Post by aerofoto - HJG Admin on Jul 1, 2011 22:42:44 GMT
The fuel system in these panels is as originally engineered by Richard PROBST.
We/HJG didn't fiddle with this when we upgraded the panels to their current standard and for Erick CANTU's VISTALINER models .... so .... it may not be possible to manipulate the fuel system in these panels as is possible with George's great B707/720 panels.
I mention this only because I think some folk are inclined to make comparisons .... believing we/HJG apply similar theory to all all of our panels .... but which we don't of course !
Glad to know you're enjoying these panels.
Generally speaking .... I just calculate the total fuel required for my flights and then distribute it across the simulated tanking .... and have never had a problem. There was an issue earlier ..... "CORRECTED NOW THOUGH" .... which resulted in fuel imbalances when changing from one aircraft type to another within the same FS session, but, that was rsiolved more than a year ago .... as I recall.
Mark C
AKL/NZ
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Post by christrott on Jul 2, 2011 18:10:19 GMT
Mark, the thing is the center tank carries more than the wing tanks, so for a SEA-IAD/DCA flight you'll fill the wings completely and have more in the center than the wings.
If I remember correctly (I'll check it this afternoon) the most current PROBST panel will allow you to shutoff the wing tanks as long as you completely shut them off (i.e. turn off the pumps and close the tank fuel valves after configuring for crossfeed).
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Post by aerofoto - HJG Admin on Jul 2, 2011 20:46:33 GMT
So far as I'm aware .... the version of PROBST B727 panel we based our versions upon were/are the latest version. That was mandatory in respone to our authorization/communication with RIchard .... but again .... we never buggered around with the fuel system at all.
Mark C
AKL/NZ
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Post by Mike Monce - HJG on Jul 2, 2011 21:00:47 GMT
As Mark says, the easiest way is to just distribute the fuel evenly. If you 30,000 lbs, put 10,000 in each tank and each engine seems to draw down each tank to itself. If you fill the wings to max, then any extra needed can then be put in the center. Never really needed to do that myself as I generally never go more than about a 2-2 1/2 hour flight.
Mike
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Post by aerofoto - HJG Admin on Jul 2, 2011 21:20:45 GMT
Chris's probably right .... in terms of an "authentic realworld fuel loading/configuration" .... BUT .... like MIke .... I've too have never done any maximum range/long range flying with any of the B727's .... as all of my own flying is generally of durations of up to, or around, 2 hours .... or so. Just don't get time ! For both me .... and Mike .... and George too, the past 2-3 years, "HERE" at HJG, have essentially been a case of us finishing one project .... and then getting started on the next .... with very little rest in-between. Just as has been the case for usin regard to the B727's, which rolled on into to CARAVELLE's (with our AFG partners), and which then rolled on into the DC9's, followed by the L1011's too .... and which has now now on-rolled into the MD80's/90's as well ..... along with some other exciting new non-HJG and future projects for FS too. In respect of the latter (those other exciting new non-HJG future FS projects ) .... we/HJG often spend as much time assisting the development of projects by other FS groups, and individuals, as we spend developing our own. After all .... that's what "COMMUNITY SPIRIT" is, or should be, all about ! Mark C AKL/NZ |
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.... BUT .... I'm not sure if want you'd like to be able to do there (albeit correct procedure I know) can be so easily incorporated into these panels short of another major panel and FDE re-write .... only we/HJG have no further upgrades planned for any of these B727 panels.
