page_title: HMS Ultimatum
hierarchical_section_title: HMS Ultimatum
caption_attribution_description: HM Submarine ULTIMATUM setting off from Holy Loch.
context_page_description: HMS Ultimatum was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness, and part of the third group of that class. So far she has been the only ship of the Royal Navy to bear the name Ultimatum.
context_section_description: HMS Ultimatum (P34) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness, and part of the third group of that class.  So far she has been the only ship of the Royal Navy to bear the name Ultimatum.
caption: HMS Ultimatum setting off from Holy Loch
exif: {}