Regulation 9
Regulation 3 does not prohibit at the nuclear installation at Springfields—
(a)
flight at a height of not less than 1,670 feet above mean sea level for the purpose of landing at Blackpool Airport; or
(b)
flight in airspace lying south of a straight line drawn from 534644N 0024454W to 534513N 0025044W for the purpose of landing at or taking of from Warton Aerodrome.