She managed to limp home under the protection of fighter aircraft and destroyers, and was under repair at Chatham Dockyard until 27 September 1940.

[2][3] A memorial plaque to the boat and her lost crew members was placed in All Saints' Church, Lindfield, West Sussex.

In June 2023 Greek researchers led by Kostas Thoktaridis discovered the lost submarine in the Aegean Sea at a depth of 203 metres.

The submarine rests on the seabed of the open sea with an 8-degree starboard list, dozens of kilometres away from the shores of Sounion.

The lowered periscopes and sealed hatches testify that the Triumph was in a deep dive during its final moments.