The Anti Submarine Warfare Association

Formerly the TASI and ASWI association.

Welcome to the ASW association official Website. The association was formed in 1955 as the TASI Association in HMS VERNON Portsmouth and was renamed the ASWI Association in 1975 to reflect the changing structure of the sonar branch. In January 2019 after a vote of the membership the name was changed to the ASW Association .
Please enjoy the site and email the webmaster should you have any comments about the site.


If you wish to become a paid up member click here 
 If you have any questions please email me


Canceled  2020 Dinner Cancelled

The Next ASW Dinner is Saturday 23rd October 2021

Royal beach hotel Southsea

More details to follow


Sad passing of Edmund (Ted) Philips TASI.  


Ted passed away on Friday  18th September 2020

Ted was the Instructor when  Tony Walton, Bob Nicholls MBE.BEM., and myself did a UC1's course  (BC77) which was completed on the 10/5/63.  Ted was a P.O. TASI then. He became an SD TAS officer shortly afterwards and was popular with all he came into contact with, never without a smile and you never him saw 'loose it'. His last seagoing job was 1st Lt. of the Torquay. He was relieved by 'Ginger Linnus'. Without any implications towards Ginger, Ted was so popular that the lads tried to petition him back. They failed of course,


He eventually retired and lived in Farlington in Portsmouth , on the death of his 1st wife, moved to Teignmouth where he was born. He was Commodore of the River Teign Sailing Club. His ashes will be spread on that River, 





Second Poseidon MPA delivered to the UK


First S2150 Sonar Fitted Aboard Royal Navy Type 23 Frigate HMS Portland



Photographs of ships sonar teams UPDATED!
Rememberance page update April 2020 
Home page August 2020
Course Photographs August 2020
Spot the sprog April 2020

Aims of the Association 

  • 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.

Key Benefits to Joining Updated (April 2020)

  • Free association pin as per top of the page
  • Access to Course photograph database with free copies of photographs
  • Access to members list including ships served over 674 on database.
  • The opportunity to contact and meet old shipmates.
  • Regular social events (many subsidised).
  • Your own page on the website.
  • 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!


Keeping Up To Date

Members list now updated  over 674 names (April 2020)  including ships served, dates and rates when leaving.

Is your information up-to-date or missing?

Contact with any updated information.

Photographs of ships sonar teams UPDATED!
Rememberance page update April 2020
Home page updated April  2020
Course Photographs updated April 2020


Photos Unknown

Can you help with any of these photos? What was the event? Can you name anyone in the Photos? Email Webmaster if you have any ideas. Better quality photos can be provided if you need them.