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Why did the Ark Royal Sink?

Posted by Paul Harrison, on August 31st, 2025

On 14th November 1941 HMS Ark Royal,  Britain’s first modern fleet carrier, sank after a torpedo attack by the German submarine U-81. The following year, acclaimed war correspondent Sir Herbert Russell explained why this had so much impact on members of the public:

“She was the first ship of an entirely new type within her category and, because of her freak-like appearance, she attracted a great deal of attention from the camera men of the Press…(and) had not long to wait after the outbreak of hostilities before receiving the greatest publicity stunt…in all naval history. This was when the German Propaganda Ministry sank her. The ludicrous repetition of this lie became a joke which gained vastly in its appeal as the feats of the Ark Royal were recorded.”[1]

In his Official History, Stephen Roskill points out how important the loss was to the Navy too:

“She sank at 6.13 a.m. on the 14th. Of November, only twenty-five miles from Gibraltar. Only one man of her company perished”.

“The loss of this splendid ship, so often attacked and so repeatedly claimed sunk by the enemy, to only one torpedo hit was, of course, the cause of great disappointment and the subject of searching inquiry. The general conclusions were that the list taken by an abandoned ship may appear more dangerous than it is, and that correction of a list by admitting sea water to compartments on the other side should be undertaken as quickly as possible. But for a fire in the post boiler room, which was caused by the flooding of the funnel uptake resulting from the list of the ship, the Ark Royal would probably have been saved. But her loss, whether avoidable or not, was a grievous blow, especially as it came at a time when Admiral Cunningham was without an aircraft carrier. For the Illustrious and Formidable were both repairing battle damage in the United States, and the new aircraft carrier Indomitable had been damaged by accidental grounding off Kingston, Jamaica, on the 3rd. of November while still working up her ship’s company.”[2]

The ‘searching inquiry’ included a Board of Enquiry and Court Martial of the Ark Royal’s captain, Loben E.H. Maund, C.B.E., R.N., but also a Bucknill Committee enquiry, whose purpose was to quickly learn the lessons needed to avoid future catastrophes. The following extract is from the report of that enquiry, which is reproduced in full in Ben Jones’ NRS Vol. 159, The Fleet Air Arm in the Second World War, Volume I, 1939-1941.[3]

Report by Second Bucknill Committee[4] [ADM 1/11800] 25 June 1942Loss of HMS Ark Royal, 13–14 November 1941

INTRODUCTION …

  1. At this, its final session, we have enquired into the loss of H.M.S. ARK ROYAL. This vessel received under water damage at 1541 on 13th November, 1941, and 14½ hours later sank after attempts had been made to get her into port. We have reviewed the circumstances attending the loss of this ship because of the nature of the damage sustained by her, which, as we understand, has caused some anxiety to the Board of Admiralty …

DOCUMENTS AND WITNESSES.

  1. We have had the advantage of seeing the technical report (C.B.04188) on the loss of the ARK ROYAL; we have also had before us the minutes of the Court Martial on Captain L. E. H. Maund, C.B.E., R.N., the evidence given at the Board of Enquiry, and other documents, and we have heard evidence from the Director of Naval Construction, The Engineer-in-Chief, the Director of Torpedoes and Mining, and Lieutenant Commander (E) Oliver, Senior Engineer of the ARK ROYAL. IMMEDIATE FLOODING.
  2. The following compartments flooded immediately or rapidly after the explosion, viz:– Main switchboard room, Lower steering position, Telephone exchange, Starboard boiler room, Starboard air spaces, Starboard water tight compartments. There is no evidence as to the exact area over which the starboard air spaces and starboard water tight compartments flooded, but we see no sufficient reason to disagree with the statement in the technical report that these flooded between 69 and 98, and that the starboard oil fuel tanks outside the protective bulkhead were 95% full of oil.

TYPE OF TORPEDO.

  1. The first question which we have considered is the nature of the structural damage to the ship. There is no evidence or suggestion of damage by more than one torpedo. We have carefully considered the question whether this was a contact torpedo or a non-contact torpedo. On this point three theories were put forward in evidence before us. (a) A contact torpedo hitting the ship on the turn of the bilge. (b) A non-contact torpedo exploding just under the turn of the bilge. (c) A non-contact torpedo exploding at considerable depth under the flat of the bottom.

We think that there is not sufficient evidence to prove conclusively whether it was a contact torpedo or a non-contact torpedo just under the turn of the bilge. For reasons which are set out hereafter in this report, our conclusion is that it was not a non-contact torpedo exploding under the flat of the bottom. Without coming to any definite decision as to whether the damage was done by a contact or non-contact torpedo near the turn of the bilge, we think it very probable that it was a contact torpedo for the following reasons.

  • At the time of the explosion the sea was, to quote from the Technical Report (Part I, para. 2), ‘smooth with a ripple from a wind of 10 m.p.h. from S.W.’, and the visibility was good. The ARK ROYAL was steaming in company with other vessels but no track of any torpedo was seen before the explosion. It may be that this was missed, but the fact that no track was seen points to the possibility that the torpedo which did the damage was electrically propelled. If this was the case, we consider from the evidence of the Director of Torpedoes and Mining that a non-contact explosion was improbable because electric torpedoes are unlikely to be used with a non-contact pistol.
  • The evidence of the Director of Torpedoes and Mining before the Committee was that his department did not know of any case within 12 months before the loss of the ARK ROYAL or of any case since her loss up the present time, in which it had been established that a British warship or merchant ship had been sunk or damaged by a non-contact torpedo. It therefore appears to us unlikely that the loss of the ARK ROYAL was due to the use of such a torpedo …
  1. To sum up, our conclusion, after reviewing all the evidence and arguments on the point, is that the damage to the ARK ROYAL was not done by a non-contact torpedo exploding well under the bottom. As already stated in this report we think it is very probable that the damage was done by a contact torpedo exploding near the turn of the bilge.

Editors note: The featured image for this Blog entry is a painting which was recently purchased by the author. If any member has information or ideas as to whom the artist may be, please leave a comment!

[1] Russel, Herbert with Pursey, H., The Story of a Famous Ship: Ark Royal (London: John Lane the Bodley Head, 1942), pp.81-82.

[2] Stephen W. Roskill, The War at Sea 1939-1945: Volume 1: The Defensive (London: HMSO, 1954), pp. 533-534.

[3] Ben Jones ed., NRS Vol. 159, The Fleet Air Arm in the Second World War, Volume I, 1939-1941 (Farnham: Ashgate for NRS, 2012)

[4] Hon Mr Justice A. T. Bucknill (Chairman), Adm T. H. Binney (who succeeded VA W. F. Wake-Walker), Sir M. E. Denny and Mr J. H. James (Sec).

2 comments on “Why did the Ark Royal Sink?”

  1. Axel Schultz on

    Hallo, ich glaube, das es sich um einen Torpedo mit Aufschlagzündung gehandelt hat, nachdem die deutsche Kriegsmarine mit Magnet Gefechtsköpfen sehr schlechte Erfahrungen 1940 (Norwegen) gemacht hatte. Als ich von der Versenkung der Arc Royal durch nur einen lustigen Torpedo las, konnte
    ich es nicht glauben. Damals war die Übersetzung im Internet noch kaum möglich. Aus diesem Grund hatte ich mich um die Versenkung der Arc Royal nicht gekümmert. Ich war strickt der Meinung, daß es sich nur um einen Übersetzungsfehler oder redaktionellen Fehler handeln könnte, der fahrlässig weiterverbreitet wurde. Leider gibt es im Internet keinen Querschnitt der Arc Royal mit allen Daten. Vom Schlachtschiff Scharnhorst gibt es mehrere Abbildungen mit allen relevanten Daten.
    Es gab mehrere Untersuchungen des Unterganges der Arc Royal in England. Warum wurden die Bauwerft oder der/die Konstrukteur/e nicht vernommen? Mit freundlichen Grüßen Axel Schultz

    Reply
    • Daisy on

      A quick translation of the above:

      Hello, I believe it was an impact-detonated torpedo, given the German Navy’s very bad experiences with magnetic warheads in 1940 (Norway). When I read about the sinking of the Arc Royal by just one torpedo, I couldn’t believe it. Back then, online translation was practically impossible. For this reason, I hadn’t bothered to look into the sinking of the Arc Royal. I was firmly convinced it could only be a translation or editorial error that had been carelessly disseminated. Unfortunately, there isn’t a cross-section of the Arc Royal with all the data available online. There are several images of the battleship Scharnhorst with all the relevant data. There have been several investigations into the sinking of the Arc Royal in England. Why weren’t the shipyard or the designer(s) questioned? Sincerely, Axel Schultz

      Reply

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About Paul Harrison

Paul Harrison has taught at a Blackpool primary school for nearly 40 years, and has always had a passion for history, especially Naval Aviation. This has included in-depth research into the Fairey Barracuda, a three-seat carrier-borne torpedo and dive bomber which saw extensive service with the Fleet Air Arm during the Second World War.