La Argentina carried three triple 6-inch turrets, four 4-inch guns, an octuple pom-pom, and two triple torpedo mounts. Her belt, deck, turret, conning-tower, and magazine protection also compared favorably with that of the Arethusas. These features made her a deliberately protected light cruiser despite her training role and modest displacement. Aviation facilities for a Supermarine Walrus added scouting capacity for operations far from support.
Notable Point · 13:49-15:24
Nine 6-inch guns, practical protection, and a shipborne floatplane
The ship paired a nine-gun main battery with anti-aircraft weapons, torpedoes, armour, and a Supermarine Walrus for reconnaissance.