Search Legislation

The Merchant Shipping (Navigational Equipment) Regulations 1993

What Version

 Help about what version
  • Latest available (Revised)
  • Original (As made)


This is the original version (as it was originally made). This item of legislation is currently only available in its original format.


Gyro compass performance standards

16.  Every gyro compass installation required to be provided shall comply with the performance standard adopted by the Organisation and shall, in the case of a United Kingdom ship, comply with the relevant performance standard.

Siting of gyro compass installation

17.—(1) The master compass shall be installed with its fore-and-aft datum line parallel to the ship’s fore-and-aft datum line to within ±0.5°.

(2) The compass card of the master compass, or a repeater of the heading information, shall be sited so that it is clearly readable by the helmsman when steering the ship.

(3) Where provided, repeaters used for taking visual bearing shall be installed with their fore-and-aft datum lines parallel to the ship’s fore-and-aft datum line to within ±0.5°,

(4) The master compass shall be sited so as to avoid, where practicable, excessive errors being caused to the gyro compass installation due to the ship rolling, pitching or yawing.

(5) Where in a gyro compass installation fitted on or after 1st September 1984, failure of one repeater could cause an error in any other repeater a readily accessible means shall be provided for isolating each repeater output from the master compass.

Provision of gyro repeaters

18.  On ships of 1600 tons or over a gyro repeater or gyro repeaters shall be provided and shall be suitably placed for taking bearings as nearly as practicable over an arc of the horizon of 360°.

Back to top


Print Options


Legislation is available in different versions:

Latest Available (revised):The latest available updated version of the legislation incorporating changes made by subsequent legislation and applied by our editorial team. Changes we have not yet applied to the text, can be found in the ‘Changes to Legislation’ area.

Original (As Enacted or Made):The original version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.


Opening Options

Different options to open legislation in order to view more content on screen at once


More Resources

Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:

  • the original print PDF of the as enacted version that was used for the print copy
  • lists of changes made by and/or affecting this legislation item
  • confers power and blanket amendment details
  • all formats of all associated documents
  • correction slips
  • links to related legislation and further information resources