MV Acavus was a motor tanker that was built in 1935, and converted into a merchant aircraft carrier (MAC) in 1943.

[1] In the 1930s, Shell ordered a series of oil tankers called the "Triple Twelve class" from various shipyards.

It was driven by an eight-cylinder, four-stroke, single-acting Diesel engine that was built by Hawthorn, Leslie of Newcastle upon Tyne.

[6] As built, her navigation equipment included wireless direction finding, and an echo sounding device.

[7] During the Battle of France, a fortnight after the Dunkirk evacuation, Acavus was in Le Verdon-sur-Mer, at the mouth of the Garonne, downriver from Bordeaux.

On 17 June, she and several other merchant ships left Le Verdon as part of Operation Aerial.

Her armament was augmented with eight anti-aircraft guns: two Bofors 40mm autocannon and six Oerlikon 20 mm cannon.

[13] On 18 April 1963, Iacra arrived at La Seyne-sur-Mer on the Mediterranean coast of Southern France to be scrapped.