Sixty-five ships departed Sydney (Nova Scotia) on 30 August 1941[2] under local escort, bound for Liverpool.

A week later, they were met just east of the Strait of Belle Isle by the Canadian 24th Escort Group consisting of the River-class destroyer Skeena (Lt Cdr JC Hibbard, senior officer) with Flower-class corvettes Alberni, Kenogami, and Orillia.

Early on 9 September U-85 sighted the convoy near Cape Farewell, Greenland, and made an unsuccessful torpedo attack.

The moon rose on the southern side on the convoy that night, and U-432 torpedoed the silhouetted 5,229 GRT British freighter Muneric.

The tanker Tahchee was towed back to port by Orillia[3] but the 3,410 GRT British freighter Baron Pentland sank with 1,512 standards of lumber and two of her crew.

[9] U-82 torpedoed the 7,465 GRT British CAM ship Empire Hudson[3] less than two hours after Skeena regained station ahead of the convoy.

[9] Daylight on 10 September brought several periscope sightings and emergency turns by the convoy before U-85 torpedoed the 4,748 GRT British freighter Thistleglen.

[11] The corvettes Chambly and Moose Jaw observed the fireworks of these attacks and surprised U-501 while steaming to reinforce the escort.

[3] Leamington and Veteran dropped 21 depth charges on the afternoon of 11 September while investigating an RAF Coastal Command aircraft report of a U-boat ahead of the convoy.

[3] The last incident of the voyage took place three days later when U-98 torpedoed the 4392-ton British freighter Jedmore as the convoy approached North Channel on the late afternoon of 16 September.