Has Britain Ever Lost a Submarine? A Brief History of British Submarine Losses

Name: Has Britain Ever Lost a Submarine? A Brief History of British Submarine Losses
Uploaded: 2026-07-15T00:00:00Z
Duration: 26 s
Description: Discover Britain's history of submarine losses, including the HMS Thetis and HMS Affray tragedies during the 20th century.

Discover Britain's history of submarine losses, including the HMS Thetis and HMS Affray tragedies during the 20th century.

Published Jul 15, 2026

Video transcript

Yes, Britain has lost submarines in its history. Notably, during WWII, the HMS Thetis sank during trials in 1939, and the HMS Affray was lost in 1951 during a training exercise, both resulting in significant loss of life.

Questions and answers

Which British submarines have been lost in history?
Significant British submarine losses include the HMS Thetis in 1939 during trials and the HMS Affray in 1951 during training exercises.
What caused the sinking of the HMS Thetis?
The HMS Thetis sank during sea trials in 1939 due to a combination of technical failures and human error, resulting in a tragic loss of life.
When was the HMS Affray lost and under what circumstances?
The HMS Affray was lost in 1951 during a routine training exercise with all crew members perishing.