> > Is the "ground cache" for the benefit of the FDM?
> The FDMs are currently the only users of the groundcache, and yes, they
> benefit from it. A lot. Per-wheel/contact-point ground awareness hadn't been
> done before Mathias implemented the ground cache. And probably it would have
> been a big performance problem to constantly do intersection test with the
> whole tile. Still, I didn't mean to blame the problems on the FDMs. I just

What I was curious about was if per-wheel contact point checking was being done 
when it
doesn't need to be done - that is, when the aircraft isn't even close to the 


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