Royal Fleet Auxiliary Ensign [1:2]

The RFA is made up of the supply and support vessels that provide logistical support to the Royal Navy.

Royal Fleet Auxiliary Jack [1:1]

Government vessels that wear Blue Ensigns have square versions of their enisgn as their jack.

Lord High Admiral [1:2]

Admiralty Board [5:8]

Navy Board [5:8]

Admiral of the Fleet (5 Star) [1:2]

Also the First Sea Lord

Admiral (4 Star) [2:3]

Vice Admiral (3 Star) [2:3]

Rear Admiral (2 Star) [2:3]

Commodore RN (1 Star) [1:2]

Commodore RNR (1 Star) [1:2]

Commodore RFA (1 Star) [1:2]

Squadron Command Pennant [1:2]

Senior Officer Afloat

Masthead Pennant

Queen’s Harbour Master [1:2]

Fishery Protection Pennant

Commodore of a Convoy

Special Boat Service [3:5]

Royal Naval Supply and Transport Service [2:3]

Royal Maritime Auxiliary Ensign [1:2]

Royal Maritime Auxiliary Jack [1:1]

Government Service Ensign [1:2]

Government Service Jack [1:1]

Red Disc - Alert and Salute Only (officer entitled to a flag)

This is a metal plate placed at the bow of a craft.

Blue Disc - Alert and Salute Only (officer not entitled to a flag)

This is a metal plate placed at the bow of a craft.

White Disc - Courtesy Salute Only

This is a metal plate placed at the bow of a craft.

HRH The Duke of Edinburgh’s Plate

Equivalent to a White Disc.

HRH The Prince of Wales’ Plate

Equivalent to a White Disc.

Royal Family Members’ Plate

Equivalent to a White Disc.