On Mon, 2002-10-21 at 18:02, [EMAIL PROTECTED] wrote:
> Andy Ross writes:
> 
>  > > ..also, we may want to modify the fdm to model the airframe
>  > > iceing, bending, dropping things or breaking up etc in mid-air,
>  > > this is useable both for both post accident forensics and games.
>  > 
>  > Most of that is really hard, but dropping things we can do already.
> 
> It's really hard to do well (for an engineering application), but it
> might be possible to fake (for a pilot training application).  For
> example, here are some symptoms of icing:
> 
> 1. increased gross weight
> 
> 2. decreased lift
> 
> 3. decreased propeller performance
> 
> 4. blocked carb intake
> 
> 5. hstab stall
> 
> We cannot do those right without an incredible amount of work, but in
> JSBSim (for example), we could simply add another dimension to some of
> the tables based on a simplistic icing input value.  The hstab stall
> is particularly nasty because the recovery is the opposite of the
> wing-stall recovery that pilots normally practice.

Umm .. that would require reworking most of our models from the ground
up.  We really do need a tail-off model for that sort of thing.

> 
> 
> All the best,
> 
> 
> David
> 
> -- 
> David Megginson, [EMAIL PROTECTED], http://www.megginson.com/
> 
> _______________________________________________
> Flightgear-devel mailing list
> [EMAIL PROTECTED]
> http://mail.flightgear.org/mailman/listinfo/flightgear-devel
-- 
Tony Peden
[EMAIL PROTECTED]
We all know Linux is great ... it does infinite loops in 5 seconds. 
-- attributed to Linus Torvalds


_______________________________________________
Flightgear-devel mailing list
[EMAIL PROTECTED]
http://mail.flightgear.org/mailman/listinfo/flightgear-devel

Reply via email to