HMS Aeneas (P427), named after the hero Aeneas from Greek mythology, was an Amphion-class submarine of the Royal Navy, built by Cammell Laird and launched 9 October 1945.
In 1972 Aeneas was hired by Vickers for use in what proved to be successful trials of the Submarine-Launched Airflight Missile (SLAM) system, an anti aircraft system using a cluster of four Shorts Blowpipe missiles on an extendable mast, allowing attacks against low flying aircraft while the submarine was at periscope depth.
Aeneas was broken up in 1974.
On 26th September 2012 DNCS at the company's Le Mourillon plant announced plans to design and build a submarine canister-based air defence weapon based on MBDA's Mistral. The concept is based on the British SLAM missile developed by Vickers in the 1970's and used on HMS Aeneas.