HMS Blazer is an Archer-class patrol vessel of the Royal Navy. She was built by Vosper Thornycroft. She is just over 20 metres long and 5.8 metres wide and powered by two Rolls-Royce turbo engines. The ship is based at HMS Nelson, the shore base in Portsmouth and was commissioned in 1988. She has four crew plus a commanding officer, and sails with a training officer and a complement of students. She is attached to the Southampton University Royal Naval Unit (SURNU), under the command of Lt Amie Jackson RN, who is also Officer in Charge of the Unit.