Dear, Sorry for Gasaway's narrative but U64 did not fire any torpedoes on April 10, 1940 (neither did she see 2 cruisers). See her KTB, both the original German version or the (correctly) translated online version pointed out by Thorsten. KTB U64 explains why U64 did not fire torpedoes at the destroyers. The explosions mentioned were NOT from prematurely exploding torpedoes but from de
Forum: General Discussions

Dear Thorsten, No Ulmann was spotted in the Ranglisten. There are 2 officers named Uhlmann (with hl) in the Ranglisten, Siegfried and Ernst. However, both were Verwaltungsoffiziere. The 1944 Rangliste gives Siegfried as Oblt.(V), Ernst as Lt.(V). Verwaltungsoffiziere did not serve aboard U-boats and therefor don't appear in the crewlists for them. The HMA Crewlists (https://hist
Forum: General Discussions

Dear Scott, As the officer survived the war, he should have been listed in the Rangliste, but in several editions of the Ranglisten (up to 1944) there is no ULLMANN listed. Might he have been a reserve officer - which aren't listed in the Ranglisten - ? Regards, Walter
Forum: General Discussions

The operations record books for Squadrons 206 and 547 are available at TNA (TNA AIR27/1224A/25 & /26 for #206, and AIR27/2034/14 for #547. The information therein deviates somewhat from the above. The confusion might originate with the report from Liberator "C" of Squadron 206 (F/O J.J.Y.Glazebrook). Shortly after 0337 on Feb 4, 1945, the aircraft attacked a 3-island typ
Forum: General Discussions

Dear Dave, Is the first name of the uncle, Lembcke, who served on a u-boat known? Best regards, Walter
Forum: General Discussions

Dear Scott, The only u-boat calling at Martinique was U-156, to seek medical help for a wounded crew member. You can read more about this when entering < Martinique > and < 156 > in the search mask on this website. Check the general discussions for all dates (not just for the last 30 days). This gives a number of hits. No, Martinique never was a u-boat base. Some Allied ships w
Forum: General Discussions

Hallo Derek, Neither on (losses by year shown on maps), or could a u-boat be located that was lost near Spurn head in 1941 (or around that year). You are probably searching in vain for such a boat. Best regards, Walter
Forum: General Discussions

Dear Javic, Should you want a book reference, then "The U-Boat war in the Carribbean" by Gaylord T.M.Kelshall (Naval Institute Press, 1994, ISBN 1-55750-452-0) might be of interest to you. Sorry, don't know Spanish literature on the subject. If it is more online you want to do some research, then please let me know. I suppose you are aware of . Best regards, Walter
Forum: General Discussions

U459 (WILAMOWITZ-MOELLENDORFF) is the u-boat you are looking for. Located in by entering the date (04 09 1942) and CALIFORNIA (in capital letters!) in the search field named referentie. Regards, Walter
Forum: General Discussions

Dear, To my knowledge, at least no German u-boats were sunk by a Bristol Beaufort aircraft. The attacks on German u-boats we have by that type of aircraft are listed in . Choose the language (the flag at the top left) in the field 'FEIT' enter the abbreviation Bbe (these 3 caracters stand for the Bristol Beaufort aircraft), select the 'Match case' field to the right of
Forum: General Discussions

After a too long working day, translation of the formula for the volume of a cylinder - basic mathematics? - let me down in a big way, and must of course be... . The outcome for the M6V 40/60 diesel engine remains 57,8 litres. Walter
Forum: Technology and Operations

Dear Roger, Those diesels were not only used in the Type VII WWII2 German uboats, but for instance also in the Type XXI. The MAN M6V 40/60 was a 6-cylinder 4-stroke engine with a cylinder diameter of 400mm and a piston stroke of 460mm (cf. the '40/60' in the name...). The piston displacement or cylinder capacity (Pi*diameter*stroke) was 57,8 litres per cylinder. Sources used:
Forum: Technology and Operations

Dear Alan, Thorsten Reich put the photo on the website for which he is administrator, historisches-marinearchiv.de. Thorsten is - to my knowledge - no administrator for the uboat.net website. I assume he reads - and now and again posts - messages as a reader/user of this forum (as do I). Nothing less, nothing more. For the photo to appear on the uboat.net website, an administrator of this
Forum: General Discussions

U156 was lost in March 1943 with all hands. The incident with the gun barrel took place in Feb., yes, Feb.1942. Crewmembers wounded/dead in the gun barrel-incident are listed on historische with U156, but are NOT among the 53 crew listed as lost with U156 in March 43. Regards, Walter
Forum: General Discussions

Dear Larry, As to a list of boats that went missing... In our DUIKBOOT-database (see ) you can in the search mask enter a time period and select for instance the event "sunk, cause unknown" (almost at the bottom of the drop-down menu with events). One can also select as event "Last message/signal from the boat". Both these events are in drop-down menu with events un
Forum: General Discussions

Dear Pat, Probably it does not provide all the information (or details) you are looking for, but Luc Braeuer in his books - written in French - about u-boats in French ports (Lorient, Brest, La Pallice, St.Nazaire) has sections in his books with information/photographs/drawings related to the sites where officers and crews remained when not on board. The name of the author suffices to find
Forum: General Discussions

Dear Martin, Sönke Neitzel in his book "Die deutschen Ubootbunker und Bunkerwerften" (Bernard & Graefe Verlag, 1991, ISBN 3-7637-5823-2) writes on page 36:"Der Fang-Rost (Stahlbetonkonstruktion) bestand aus bis zu 3,8m hohen Auflagern, auf die die 1,5m hohen Fang-Rost-Rippen quer dazu aufgelegt wurden. Die Fang-Rost-Rippen waren oben rund bzw. abgeschrägt und durch eine 10mm
Forum: General Discussions

Thank you for the link Tony. The airplane in this thread was a passenger carrying Douglas C-54. The aviation-safety.net text says the plane disintegrated and dropped in the jungle some 30 miles east of Paramaribo. It seems most curious to me that a passenger carrying plane would fly so low and near a surfaced uboat (I repeat that to my information no uboat was present in the area on the day
Forum: General Discussions

Dear, E.Zimmerman, who did and does do in-depth research on encounters between uboats and allied aircraft, does not list such an encounter in the timeframe and area given. It would be nice to learn of the source indicating such an encounter took place, as well as any information on the identity (type) of the aircraft involved. Best regards, Walter
Forum: General Discussions

Hi John, To have the headers of the database in English, please click the U.K.-flag at the top left in the search form. Böttger is listed as BtsMt on U651 = Bootsmaat, which translates as boatswain. Best regards, Walter
Forum: General Discussions

Dear John, Max Böttger is listed in as having served aboard U651. Best regards, Walter
Forum: General Discussions

Bonjour Lucien, U402 is the uboat you are looking for. She was attacked twice on the evening of September 7 by a Wellington of 172Sq. First at 2205 by Wellington Q and at 2314 by Wellington D (which was shot down in the engagement). For some more details and source used, see . Just enter the U-number and the date in the search form. You could also get there by entering the date-range and
Forum: General Discussions

Dear, Chenango's description of the contact with a U-boat can be found at . The position 3059N-8104W translates to the grid reference DB6417. Alas, I can find no German submarine that at the end of January 1942 operated in or near that area - those operating near the American east coast were all further north. In you may enter a date and see the positions of all U-boats at sea on
Forum: General Discussions

Dear Joseph, You might have a look at Best regards, Walter
Forum: General Discussions

Dear Bill, No. The unique record number on the left 'only' opens a new thread in the Forum of the historisches-Marinearchiv, and automatically puts the main particulars of the record in the thread's header. It is a fonctionallity t-Geronimo implemented in the different databases on the historisches-Marinearchiv for users to easily generate messages/questions/... in the forum r
Forum: General Discussions

Dear, To access to see the main events of U870's life, you do not have to be registered for that. You just use the flags in the left top of the screen (above the tab 'search form') to choose a language (German - English - Dutch) in which you want to work the database. For U870 you enter the U-number (=870) in the block 'boat number', and hit the ENTER key. When sel
Forum: General Discussions

Hallo Scott, U270 left Lorient on 10 August 1944 with extra persons to be evacuated from Lorient by BdU's directive from Aug.7. See (section IV.A.2.b): "U-boats unable to obtain "Schnorchel" in Brest, Lorient or St.Nazaire, are to transfer to La Pallice. Transfer is to be used for transferring valuable U-boat nucleus crew and shipyard workers." U270 took 30 men
Forum: General Discussions

Dear all, As USS HERRING's action on March 21, 1943, might have an effect on the data in our DUIKBOOT-database (https://historisches-marinearchiv.de/projekte/duikboot/eingabe.php?lang=2&active_duik=search), a closer look at the action was taken. As already suggested by Platon Alexiades, an encounter with U665 was most unlikely, and an encounter with U66 could have been possible if
Forum: General Discussions

Dear Richard, You might have a look at . Several war diaries for 1943 of USS SC-702 are available online. One can download the pages. Hope the information they contain is of interest to you. Best regards, Walter
Forum: Warship forum

Dear, If the notes I took when scrutinizing ADM1/18013 many years ago at the then PRO (nowadays TNA) are correct, then: ... divers had previously (no date given) entered the wrecks of U13 and U33. It seems the wreck of U13 was not only examined from the outside, but also inside. Alas, at an unspecified date. Best regards, Walter
Forum: General Discussions