Yes, something is better than nothing but the question Britain faced after the Fall of France was not do we do something but what do do. Burn down their towns or save our merchant ships? I think saving ships would have been much more effective.
Markus you seem to have fallen for an idea that the only thing needed to defeat the U boats was a few bombers. This is clearly nonesense. Until the USA entered the war the U boats could and did operate close to the USA coast. Even after the entry of the USA into the war it was not just closing the air gap in the atlantic that mattered things like more escort carriers, destroyers with asdic, hedgehog, centimetric radar leigh lights and breaking of the KM enigma code were needed
from wiki
quote
The Battle of the Atlantic was won by the Allies in two months. There was no single reason for this, but what had changed was a sudden convergence of technologies, combined with an increase in Allied resources.
The mid-Atlantic gap that had been unreachable by aircraft was closed by long-range B-24 Liberator aircraft. Effective employment of these aircraft required shift of operational control from the United States Army Air Forces Antisubmarine Command to the United States Navy. At the May 1943 Trident conference, Admiral King requested General Henry H. Arnold to send a squadron of ASW-configured B-24s to Newfoundland to strengthen air escort of North Atlantic convoys. General Arnold ordered his squadron commander to engage only in "offensive" search and attack missions and not in escort-of-convoys. In June, General Arnold suggested the Navy assume responsibility for ASW operations. Admiral King requested the Army's ASW-configured B-24s in exchange for an equal number of unmodified Navy B-24s. Agreement was reached in July and the exchange was completed in September 1943.[16]
Further air cover was provided by the introduction of merchant aircraft carriers or MAC ships and later the growing numbers of American-built escort carriers. Flying primarily Grumman F4F/FM Wildcats and Grumman TBF/TBM Avengers, they sailed in the convoys and provided the much needed air cover and patrols all the way across the Atlantic.
The larger numbers of escorts became available, both as a result of American building programmes and the release of escorts that had been tied up in the North African landings during November and December 1942. In particular, destroyer escorts (similar British ships were known as frigates) were designed, which could be built more economically than expensive fleet destroyers and were also more seaworthy than corvettes. There would not only be sufficient numbers of escorts to securely protect convoys, they could also form hunter-killer groups (often centered around escort carriers) to aggressively hunt U-boats.
By spring 1943 the British had developed an effective sea-scanning centimetric radar small enough to be carried on patrol aircraft armed with airborne depth charges. Centimetric radar greatly improved detection and was undetectable by the German Metox radar warning equipment. Armed with radar, RAF Coastal Command sank more U-Boats than any other Allied service in the last three years of the war.[17] During the year 1943, U-Boat losses amounted to 258 to all causes. Of this total, 90 were sunk by Coastal Command, and 51 damaged.[18]
The continual breaking of the German naval Enigma enabled the Allied convoys to evade the wolf packs while British support groups and American hunter-killer groups were able to hunt U-boats that approached the convoys or whose positions were revealed by Enigma decrypts.
Allied air forces developed tactics and technology to make the Bay of Biscay, the main route for France-based U-boats, very dangerous. The introduction of the Leigh Light enabled accurate attacks on U-boats re-charging their batteries on the surface at night. The Luftwaffe responded by providing fighter cover for U-boats exiting into and returning from the Atlantic and for returning blockade runners. Still, with intelligence coming from resistance personnel in the ports themselves, the last few miles to and from port proved hazardous to many U-Boats.
Dönitz's aim, in this tonnage war was to sink Allied ships faster than they could be replaced; as losses fell, and production, particularly in the United States, rose, this became increasingly unachievable.
unquote