Operation Source brought British midget submarines to Tirpitz’s anchorage in September 1943. Getting them there demanded more than the final approach. The official despatches discuss development, transport and the difficulties of delivering the small craft over a long passage before their attack crews entered the defended waters. YT-T01
The attack of 22 September damaged Tirpitz and began a prolonged effort to restore her. For the British, the first problem afterwards was knowing what had actually been achieved. An explosion observed or reported was not a measurement of the damage inside the ship.
The report changed as evidence arrived
The official printed account contains several despatches written at different times. The later report could draw on returned participants and captured German material unavailable to the earlier writers. Its fuller account is a later stage of the investigation, rather than another entirely independent view of the event.
Even the explosion time needs care. Earlier and later accounts give different times; the later reconstruction includes a stated GMT convention. Averaging those entries would produce a time that none of the documents supplies. YT-T01
The inspected passages also do not settle the precise contribution of every attacking craft. In particular, they do not justify a confident new claim for X.5’s exact role. Honouring the men involved does not require pretending that the missing part of their story has been recovered.
Damage was the start of another contest
The attack’s value lay partly in what followed. Tirpitz needed repair, testing and renewed preparation before she could again offer her commanders a reliable fighting ship.
By March 1944, German reports describe machinery and armament trials and preparations for crew training. These later entries show recovery in progress. They also show why a single date labelled “repaired” is insufficient: defects could remain after useful capability had returned, and equipment readiness did not automatically restore a crew’s collective proficiency. YT-T18
The campaign now turned on time. Could repairs restore the threat before another attack interrupted them? To answer that, we need to follow what the German reports actually said the ship could do.
One life within the battle
Read Lieutenant Place’s account of X.7’s escape, with its source and limits.