SUBMARINES:  CHATHAM BUILT

HM Submarine Seal

Ordered under the 1936 building programme Seal was laid down on 9 December 1936 and launched by Mrs Danby on 27 September 1938.

The Navy first used the name Seal in 1897, the submarine Seal was the 2nd to bear this name.
Following her workup, she sailed for service on the China station. In August 1939 having arrived in Aden, she was sent to patrol and report on Italian movements in the Red Sea.
She remained operating from Aden up to October 1939 when she was ordered back to the UK, arriving in Portsmouth on the 18th.
Ten days after arriving home Seal was sent out on her first home War Patrol. In mid November she sailed with Cachalot and Grampus to take up duties with the Halifax Escort Force.
Seal returned on 4th January 1940 to Rosyth where she joined the 2nd Flotilla.
In April 1940 she acted as a navigational beacon for the bombardment of Sola airfield near Stravager by the Cruiser Suffolk.
On 29th April Seal left Immingham with 50 mines. On 4th May she was spotted by aircraft and bombed without damage.
Having laid her mines, on her return she herself fell victim to a mine and sunk. The next day the crew managed to surface the boat but with no propulsion she was an easy target for a seaplane which began a machine gun attack. Lt Cmd Lonsdale surrendered the boat. The seaplane piloted by a Lt Shmidt landed and took the Commanding Officer prisoner. The rest of the crew were picked up by surface vessels and the German Trawler UJ128 took Seal in tow to Friedrichshaven.
The mines that had been laid by Seal sank 4 ships totalling 6900 tons.
Seal was refitted and on 30 November 1940 and was recommissioned UB and used for training until 1943. In 1945 she was scuttled at Kiel. Latter she was salvaged and scrapped.




HMS/m Seal:  Dockyard Movements
from Launch to Completion
27/09/1938
River to Basin
via North Lock
16:00
08/12/1938
Basin to River
via North Lock
10:00
22/12/1938
River to Basin
via South Lock
13:10
20/03/1939
Basin to River
via North Lock
15:30
01/04/1939
River to Basin
via South Lock
10:50
23/05/1939
Basin to South Lock
Overnight in Lock
15:30
24/05/1939
South Lock to River
 
07:10
 


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