Magnetic Compass Deviation Card Renewal

A deviation card is produced after your onboard compass usually located at the wheel binnacle has been swung. 1 regulation 19 paragraphs 211 212 213 and 221 lay down the requirements for all ships excluding fishing vessels and pleasure craft under 150 gt to be fitted with a magnetic compass or other means to determine and display the vessels heading independent of any power supply. Address seafarers training certification branch maritime coastguard agency bay 117 spring place 105 commercial road southampton so15 1eg email.

Inspiration Magnetic Compass Deviation Card Renewal, The magnetic compasses are a very important tool for the safety of navigation.

Magnetic compass deviation card renewal. Ideally this is done annually. The compass deviation card marks deviation as the name suggests for different headings. 53 a compass deviation card should be prepared each time the compass is adjusted. Magnetic compass adjustment and correction is one of the subjects in the examination curriculum for a shipmasters certificate of competency.

Is a marine surveying company based in hong kong who carry out magnetic compass adjustments on vessels of all types and sizes. 54 repairs should only be made by the compass manufacturer or other competent person or company using proper. However they are independent of location and thus the compass can be calibrated to accommodate them. Readings are usually taken at 30 degree intervals from 000 and 360 degrees.

Operation maintenance and testing of magnetic compasses. Annex 13 magnetic compasses. The sources of magnetic deviation vary from compass to compass or vehicle to vehicle. Principal surveyor john hall holds an unlimited marine compass adjusters licence and has adjusted compasses on many hundreds of seagoing ships and boats of all types and sizes.

Separate deviation cards should be prepared for the standard compass and the transmitting magnetic compass repeater if fitted by comparing headings. Vessel owners and masters must ensure that magnetic compasses are maintained in good working order adjusted and a table or curve of residual deviation is available. He has installed new compasses on offshore cargo vessels fishing trawlers.