Melchior FRANZ wrote:
> * Lee Elliott -- Friday 04 August 2006 01:05:
>   
>> Just a thought - what sort of speed are we talking here?  AFAIK 
>> YASim doesn't 'do' trans/supersonic - might this be a factor?
>>     
>
> We are talking about accelerating from 300 kts to 2000 kts with
> zero throttle. I doubt that this has anything to do with trans/supersonic.
> I can fly from New York to London with no throttle. (At some point
> you should probably actually read this thread. :-)
>   

I will point out that while it's possible to force the YF-23 into this 
extreme state, if you fly it in a more normal range, it behaves pretty 
normally.  So personally I think the YF-23 is a pretty fun plane to fly, 
even if it isn't 100% perfect.

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'm just throwing out wild guesses here, but there's 
nothing you can do in a yasim config file to create energy out of 
nothing.  All the physics is handled deep in the yasim code.

Curt.

-- 
Curtis Olson        http://baron.flightgear.org/~curt
HumanFIRST Program  http://www.humanfirst.umn.edu/
FlightGear Project  http://www.flightgear.org
Unique text:        2f585eeea02e2c79d7b1d8c4963bae2d


-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Flightgear-devel mailing list
Flightgear-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/flightgear-devel

Reply via email to