T Class Submarines and third of this Class
ordered from HM Dockyard, Chatham with HM
Submarine TRENCHANT on 25th August 1941 and
laid down on 11th February 1942. This
submarine was launched on 11th December 1942
as P329 but
was renamed TRADEWIND in March 1943 before
build completion on 18th October 1943.
Acceptance Trials were carried out in the
Clyde after the ship had been commissioned for
service. This boat had a minelaying
a t t l
e H o n o u r
a field Blue, a cherub blowing Gold
o t t o
semper secundis: 'With
winds ever fair'
u m m a r
y o f W a
r S e r v i
9 4 3
Completed contractors sea trials and
commissioned for service
On completion of Acceptance Trials took passage
Worked-up for operational service with 3rd
Submarine Flotilla based in Holy Loch.
9 4 4
On completion of work-up deployed for Flotilla
duties in NW Approaches
Deployed for escort of HM Submarine STUBBORN
which had been damaged by depth
charges whilst attacking convoy off
Nominated for service in Eastern Fleet with 4th
Passage to Ceylon
Joined Flotilla at Trincomalee
Deployed for interception patrols in Indian
Commanding Officer, Lieut Maydon RN.
Carried out unsuccessful attack on coaster under
Carried out gun attack on same coaster and a
minelayer sinking both ships and
Sank two barges off Sunda Strait
Sank mercantile JUNYO MARU of 5,065 tons
Flotilla duties based at Trincomalee
Laid mines in Mergui Archipeligo.
(Note: A 593 ton ship was sunk in this minefield
on 1st December.)
Later in patrol sank a coaster and a junk off
coast of Burma with damage to two other
junks and a coaster, all by surface
Transferred to British Pacific Fleet on
Trincomalee deployment with British Pacific
Fleet in continuation.
9 4 5
Trincomalee deployment in continuation.
Deployed for patrol in Malacca Strait and Bay of
Sank mercantile NANSHIN MARU of 834 tons.
Passage to join other British submarines based
(Note: BPF submarines were later transferred to
Subic Bay and supported by
HM Depot Ship MAIDSTONE.)
Deployed for interception patrol in South China
Sank mercantile TAKASAGO MARU of 1,116 tons, a
tug and two junks in Gulf of Siam.
Interception patrol duties with Flotilla in
Nominated for return to UK
(Note: In view of the extensive need for
operational submarines in the BPF it may be
assumed that this return was due to repair
requirements not available on station.
To be confirmed)
Passage to Chatham for refit.
Paid-off on arrival and taken in hand for refit
by HM Dockyard.
P o s
t W a r N o t e s
on completion of refit in 1946 and was based
was selected for
modernisation and Paid-off. Work done included
fit of ‘Snort’ Mast and the submarine
trials before being deployed for
Flotilla duties in Home waters. She Paid-off
into Reserve in 1954 and was laid-up at
Portsmouth. Sold to BISCO for demolition by
Shipbuilding Industries in 1954 she arrived in
tow at the breaker’s yard in Charlestown,
Rosyth on 14th December that year