On Monday 07 August 2006 11:50, Joacim Persson wrote:
> On Fri, 4 Aug 2006, Curtis L. Olson wrote:
> > Based on my understanding of YASim, this has to be some sort
> > of bug in the core yasim code since it's getting energy from
> > nowhere.  Might be some sort of numerical/roundoff issue,
> > perhaps some of the code in YAsim makes
> > assumptions/simplifications that start to break down at
> > extremely high alpha angles?
>
> I've seen the fuel flow meter (2D panel on) go *negative* at
> supersonic speed and extremely high G turns (like 50G and
> beyond) at low altitude.  It actually fills up the tank. ;) So
> it do seem to be some sort of type/typecast mixup.  (Magically
> add mass at speed and you increase kinetic energy.)

Thanks for posting this observation - this is clearly a bit wacky 
(not that accelerating w/o +energy wasn't) - can you reproduce 
it?

LeeE


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