In November 1918, the RNAS was putting together an attack on the High Seas Fleet in port, using HMS Argus and the Sopwith Cuckoo torpedo bombers of 185 Squadron. While this was somewhat of an experiment, its chances were good. In 1919, 185 Squadron carried out an experimental attack against a British battle squadron in Portland Harbour, scoring six hits from eight torpedoes dropped. This provides a way for the RN to attack the HSF without risking any heavy units to mines, submarines and coastal guns. Notably, it was also scaled down from some of the more extravagant plans, which called for the use of up to eight converted merchant carriers, in addition to Argus, Furious and Vindictive. An attack with Argus alone would likely cripple three-four of the HSF's battleships; a larger attack would remove the HSF as an offensive tool altogether (for a few months, at least).