On Friday 10 Jun 2005 22:41, Andy Ross wrote:
> theoreticle wrote:
> > Let's say someone comes up with a model for the old Pan Am
> > Clipper, that wants to land fully loaded with passengers and
> > half loaded with fuel. The actual aircraft will sink it's
> > fuselage as far as 5 feet into the water, perhaps more if
> > landing in 'seas'. There absolutely must be some code to
> > support sea planes landing in the water.
> The water interaction really isn't so difficult (it's just
> like landing gear compression, but with an extra term for drag
> due to water flow).
> The harder part is hacking the scenery subsystem to understand
> which polygons are "water" and propagate this information out
> through the groundcache to the FDMs. That will likely require
> touching a ton of code all over the simulator; it's always the
> data modelling issues that cause the problems. Algorithms are
One problem with using YASim for sea planes is that the fuselage
mustn't contact the surface as this equates to a crash. While I
was experimenting with the SR45 I found that I had to omit the
lower fuselage deck to achieve this, which must then affect the
I sort of got around it by using a non-retractable gear, which at
least added some drag back.
one of the last things I tried was to link the brakes of this
gear to the gear compression so that the braking effect reduced
or increased as the hull rose or sank into the water.
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