Re: [Flightgear-devel] Abnormal surface friction factor

[Erik H. <er...@eh...>]

On 6/14/23 13:06, James Turner wrote:

> Of course, I don’t know what units the friction is supposed to be in, to 
> know if this understanding is correct, but it’s certainly very common to 
> see such conversion factors being applied when values are read from files.

The problem is that the code was never designed for different surface 
frictions than dry asphalt. So What has been done is give rubber tires 
on dry asphalt a friction factor of 1.0 and work from there.

Just a to make sure: does any other JSBSim aircraft (say the Ercoupe 
which is pretty simple) also have a friction value of 50 on the same 
terrain type?

If not it might be a aircraft problem. If it does then it's probably 
something in the code.

Erik

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