Ten submarines—U-24, U-32, U-43, U-44, UC-47, U-51, U-52, U-63, U-66, and U-70—were given orders first to patrol in the central North Sea between 17 and 22 May, and then to take up waiting positions.
Dez submarinos (U-24, U-32, U-43, U-44, UC-47, U-51, U-52, U-63, U-66 e U-70) recibiron primeiro ordes de patrullar a zona central do mar do Norte entre o día 17 e o 22, e posteriormente tomar as súas posicións de espera.