On 13 September 1939, twelve days after the outbreak of World War II, U-27 intercepted the Davara on a normal fishing trip.

Her crew remained in the water "baling and rowing" for five hours before they were picked up by the steamer Willowpool and safely made landfall.

Christened the Davara by her owners, Mount Steam Fishing Co. Ltd, she was registered in the port of Fleetwood on 6 March 1912 and completed sometime later that same month.

Her engine consisted of a T.3-cylinder from C. D. Holmes & Co. Ltd.[1][2] Following completion and registration, Davara began a fishing career off the coast of Ireland and Great Britain.

[2] On 12 September 1939, Davara left Fleetwood for a routine fishing trip off the west coast of Ireland under the command of her skipper, William Boyles.