Patrol submarine ordered on 2nd December
1926 with HM Submarines OSIRIS and
OSWALD from Vickers-Armstrong,
Barrow and laid down on 31st May 1927
This submarine was launched on 30th August
1928 as HMS OTUS and she was the
first RN vessel to carry the name. Build was
completed on 5th July
1929 and the she
was then commissioned for service with
the 4th Submarine Flotilla on the China
Station. When war against German began
on 3rd September
1939 she was still deployed at Hong Kong
Following a successful WARSHIP WEEK
February 1942 she was adopted by the civil
community of Diss,
a t t l e H o n o u r s
e r a l d i c D a t a
On a Field Blue, beneath a bar wavy Silver,
on a Field
Green, a Trident Gold
(In a circular frame)
o t t o
'Out of the
deep I am ready'
Otus was son of
m a r y o f W a
S e r v i c e
1 9 3 9
Deployed on the China Station with 4th
Nominated for service on East Indies
Passage to join 8th Flotilla at Colombo.
Deployed for Flotilla duties in Indian Ocean
based at Colombo.
(Note : Other submarines transferred to
HM Submarines ODIN, ORPHEUS, OSIRIS and OLYMPUS.)
1 9 4 0
Nominated for transfer to Mediterranean
Joined 1st Submarine Flotilla based at
Deployed for interception patrols and took
part in Fleet exercises, especially after
of war with Italy.
(Note: HM Submarine OSWALD of this Class was
also deployed in this Flotilla.
Commanding Officer Lieut Cdr Harvey RN.
Joined 1st Flotilla, supported by HMS MEDWAY
Transferred to Malta
for interception patrols.
Pennant Number for visual signalling
purposes changed to 92P
with HM Submarines ODIN, OLYMPUS, ORPHEUS,
Mediterranean patrol deployment with
Flotilla in continuation.
Nominated for transfer to Atlantic for
convoy defence against U-Boats.
9 4 1
Carried out patrols off Azores in defence of
HG convoys on passage to and from
Deployed with OLYMPUS and relieved HM
Withdrawn for repair.
On completion of repair transferred to Bay
of Biscay Patrol in defence of HG and OG
Deployed with HM Submarines OLYMPUS and
PANDORA in area west of Bay of
Biscay for convoy defence based at
Gibraltar with 8th Flotilla
On return to Gibraltar deployed with HM
Submarine OLYMPUS for patrol of Oran to
intercept Vichy French battleship DUNKERQUE
reported to about to attempt passage to
On release took passage to Alexandra.
Resumed duties at Alexandria with 1st
Deployed for anti-submarine training of
escorts based at Alexandria.
Deployed for carriage of fuel and essential
stores to Malta.
Stores transport in continuation.
Came under unsuccessful torpedo attack by HM
Carried out interception patrols against
traffic between Tripoli and Italy.
9 4 2
Deployed in eastern Mediterranean including
transport of essential stores to Malta
Transferred with Flotilla from
Alexandria to Haifa
Nominated for return to UK
for long over due refit
Embarked mail for UK from submarines of
Passage to Gibraltar.
Retained for duty at Gibraltar
Deployed at Gibraltar for Malta supply
duties with HM Submarines RORQUAL and
Carried ammunition and aviation fuel to
Malta concurrent with
PEDESTAL relief convoy
Sustained serious damage in collision with
harbour breakwater at
Under repair at Gibraltar to allow passage
Return passage to UK
for completion of repair
Under repair in Tyneside shipyard.
9 4 3
Nominated for training duties.
On completion of post repair trials prepared
at Rothesay for anti-submarine training of
convoy escorts based at Simonstown.
Passage to Simonstown.
Deployed at Simonstown for training duties.
9 4 4
Anti-submarine training based at Simonstown
Nominated to be withdrawn from service.
Paid-off and transferred to Reserve status
9 4 5
Laid-up at Durban
o s t W a r N o t e
was placed on the Disposal List and in
September 1946 was
sold to R Scott in May 1946 and scuttled off
Durban in September that year. In
October 1962 this name was carried forward
when it was given to a patrol
submarine built at Greenock by Scotts.