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Question on HU-16 Fuel Tank Settings

PostPosted: Tue Jan 30, 2007 10:01 pm
by exnihilo
Hi!  I've got a question about the fuel tanks entries in the Aircraft.cfg for the Greg Pepper HU-16 Albatross.  The fuel tank entries look like this:

[fuel]
LeftMain= 0.000, -16.000, 0.000, 400.000, 665.000
RightMain= 0.000, 16.000, 0.000, 400.000, 665.000
LeftTip= 0.000, -34.000, -4.000, 412.000, 400.000
RightTip= 0.000, 34.000, -4.000, 412.000, 400.000
External1= 0.000, -26.000, -2.000, 100.000, 580.000
External2= 0.000, 26.000, -2.000, 100.000, 580.000

fuel_type=1


OK, what is the final number for each entry doing?  That's the "unusable" fuel, right?  The fourth number for each entry is the fuel being carried.  What's supposed to happen when the unusable fuel exceeds the total tank capacity?  The engines start up and the plane runs OK (although its got some instability I'm trying to correct).  Anybody know why the unusable fuel is set higher than the actual fuel?

Re: Question on HU-16 Fuel Tank Settings

PostPosted: Sat Feb 03, 2007 2:15 pm
by exnihilo
Bump.   Anybody encounter this before?

Re: Question on HU-16 Fuel Tank Settings

PostPosted: Sun Feb 04, 2007 12:15 am
by Bad2bone
I have been flying the HU-16 and find no problems, however, my fuel tank
entries are not the same as yours.

[fuel]
LeftMain= 0.000, -16.000, 0.000, 676.000, 665.000
RightMain= 0.000, 16.000, 0.000, 676.000, 665.000
fuel_type=1                                //Fuel type: 1 = Avgas, 2 = JetA
number_of_tank_selectors=2
                 
LeftTip= 0.000, -34.000, -4.000, 412.000, 400.000
RightTip= 0.000, 34.000, -4.000, 412.000, 400.000
External1= 0.000, -26.000, -2.000, 590.000, 580.000
External2= 0.000, 26.000, -2.000, 590.000, 580.000
electric_pump=1

Re: Question on HU-16 Fuel Tank Settings

PostPosted: Sun Feb 04, 2007 2:20 pm
by exnihilo
Well yeah, it flies OK with the fuel settings given.  But those are incorrect numbers for an HU-16.  Because of the offset "zero cg reference", I think it has to have the fuel loaded to those unrealistic numbers to be able to fly stable.