During the famous Operation Cerberus, the "Channel Dash" by "Scharnhorst" and "Gneisenau" and the heavy cruiser , which took place from 12 February 1942, three Beaufort units, with 33 serviceable aircraft were available: 22 Squadron was under orders to move to Singapore. 42 Squadron, based at Leuchars in Scotland, was supposed to move to Manston but had been delayed by snow. Only 86 and 217 squadrons were in position to attack the German ships. Of the 33 Beauforts, 28 eventually set out to attack the German ships: 13 failed to find them, three were shot down and on one the torpedo failed to release. Only 11 Beauforts sighted the battleships and launched torpedoes, none of which struck a target. One of the conclusions reached by a later Court of Inquiry was that a faster, longer-ranged torpedo bomber than the Beaufort was needed. Bristol was already working on a torpedo-carrying conversion of the Beaufighter (a development of the Beaufort airframe) and were later to develop the Brigand.