Re: Paraglider Model

On Sunday 17 October 2010 09:49:23 Thomas Pantzer wrote:
> Hello,
>
> I'm new to flightgear. I just managed to compile and install the whole
> stuff.  As I'm also a real paraglider pilot (para pro stage 5) I'm
> especcially interested in the paraglider model.
>
> As I have seen, the simulation is really far away from the real behaviour.
> There are several things in the simulation that really dont match any "sort
> of" reality.
>
> 1.) the pilot is always hanging straight down due to the pendulum effect
>
> 2.) the airfoil is most of the time (in regular flying state) time
> horizontal. The sinking rate and the forward speed make the angle of attack
> for the wing.
>
> I want to improve the (or even start over with a new) simulation model.

Some time ago I did a small amount of work to Dave's original paraglider guy.  
The result is here:
http://www.jentronics.com/fgfs/temp/paraglider.tgz

> Somewhere I have read that in FG it is possible to simulate an airplane
> only by geometrical description of the wing.  But I've not found any
> further documentation on it.

This sounds like a description of YASim...

> How can I proceed ? Is there a tutorial for creating flight models?

There are two good, physics-based flight models in FlightGear: YASim and 
JSBSim.

YASim takes physical descriptions of the aircraft and tries to model flight 
behavior.

JSBSim uses coefficient build up, that is, the FDM modeler must enter all her 
own equations for the aerodynamic portions.

> Who can join me ? Who is interested in more realistic behaviour of the
> paraglider model ?
>
> Who can help me ? Who has experience with creating flight models?
>
>
>
>
> Best Regards
>
> Thomas Pantzer

V/r
Ron

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