HMS D4 [SEP] vessel class
HMS D4
HMS "D4" was a British D class submarine built by Vickers, Barrow. "D4" was laid down on 24 February 1910, launched 27 April 1911 and was commissioned on 29 November 1911. She was the first submarine to be fitted with a gun for offensive use.
During World War I, on 22 June 1915, "D4" found the stranded German minesweeper "Bielefeld" in the Heligoland Bight off Juist, Germany, guarded by a German destroyer. "D4"′s commanding officer decided to
", it is not used in any fleet battle scenes.
"Enterprise" era.
"Enterprise" era D4-class.
The D4-class battle cruiser was a proposed design for the first Klingon vessel to appear in "Enterprise". The vessel was originally designed for usage in the fourth episode of the series, "". Designed by John Eaves, the D4-class was meant to represent a direct predecessor to Jefferies's D7-class. The design was similar to that of the D7-class, closely following its configuration and shape and incorporating a more