And QSK? Is right when saying that Groundloop is correct when referring to US rules.
FAA’s philosophy was to give sufficient turning radius to allow enough distance for IFR and VRF avoidance. VFR traffic must keep a greater distance from clouds and have better visibility above 10.000 because IFR traffic may “bump” out of clouds at a speed higher than 250 KIAS above 10.000 feet. VFR weather minima below 10.000 feet was made under the assumption that IFR traffic hidden in clouds would operate at or below 250 KIAS. (Ref US FAR § 91.155 Basic VFR weather minimums)