• To promote "esprit de corps" amongst members so as to enhance their prestige within the service.
• To provide wherever possible and within the means of the association, professional help and assistance to the serving membership.
• To expand the social and recreational activities of its members.

• Free association pin (as per top of the page)
• Access to Course photograph database with free digital copies of photographs
• Access to members list including ships served - over 809 on database.
• The opportunity to contact and meet old shipmates.
• Regular social events (many subsidised).
• Your own page on the website (ask for details).
• Occasional Seamaster web newsletter.

Membership is now open to all serving, ex serving sonar rates.
Lapel pin, access to subsidised or free events, sonar course photos and year photos.
Access to the members area of the website. LOGIN HERE!

Members list now updated over 809 names May 2026 including ships served, dates and rates when leaving.

Is your information up-to-date or missing?

Contact webmaster@aswi.co.uk with any updated information.

Photographs of ships sonar teams UPDATED!
Rememberance page update May 2026
Home page updated May 2026
Course Photographs updated April 2026