She was equipped for anti-submarine escort assignments when the Channel minelaying was completed, but retained the chart room by sacrificing her mainmast to compensate for the additional topside weight of a QF 12 pounder 12 cwt naval gun on the forecastle.

[1] In May 1941 Scott narrowly avoided detection by the German battleship Bismarck while surveying Greenland pack ice in the Denmark Strait.

She was damaged in a collision with HMS Arethusa in December 1941 while assisting the British Commando raid Operation Anklet on the Lofoten Islands.

[1] After the collision damage was repaired, Scott focused on providing navigational information for the minelayers placing the Northern Barrage between Greenland and Scotland from the spring of 1942 until the project was abandoned in the autumn of 1943.

[3] After testing the Decca Navigator System at Moray Firth in early 1944, Scott surveyed positions for the blockships and Phoenix breakwaters of the Mulberry harbour at Arromanches during the Invasion of Normandy.