The Portland Harbour Revision Order 1997

Speed of vessels

6.—(1) Subject to sub-paragraph (2) below, the master of a power-driven vessel other than a power boat shall not, except and in accordance with the prior permission in writing of the harbour master, cause or permit the vessel to proceed at a speed greater than 12 knots through the water when navigating—

(a) within the inner harbour; and

(b) in the approaches thereto north of a line drawn 048° (true) from “D” Head.

(2) The master of a power-driven vessel shall not, except and in accordance with the prior permission in writing of the harbour master, cause or permit the vessel to proceed at a speed greater than 6 knots through the water in the following areas—

(a) in Newton’s Cove, west of a line drawn 026° (true) from Torpedo Pier Light to the northern limit of the harbour;

(b) within 150 metres of the breakwaters, except as required to pass through the main fairways;

(c) in the inner harbour—

(i) west of a line drawn 026° (true) from the light structure (New Channel Beacon) situated at Latitude 50° 34.87' N, Longitude 002° 27.61' W to Torpedo Pier Light;

(ii) south of a line drawn 119° (true) from New Channel Beacon to the light on the northern corner of Queen’s Pier; and

(iii) south of a line drawn 251° (true) from Beacon E on the Outer Breakwater.

(3) For the purposes of sub-paragraph (1) above “power boat” means a power-driven vessel of less than 10 metres in length.

(4) This paragraph is without prejudice to paragraph 5 above and the Collision Regulations.