[Suicide Junkie]

I'm not. It is all relative and proportional.

To use this, select one of your hulls arbitrarily and give it an arbitrary turning rate you like.
All the other hulls can then get a matching turn rate based on this.

For example, I decided arbitrarily that my scout (40kt) would have a turning rate of 0.001.
Therefore my battleship (240kt) should have a turning rate of about 0.0003
And my micro fighter (18kt) gets 0.0017