Wn228 Schlüsselblume Bassin Loubet

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Wn228 Schlüsselblume Bassin Loubet

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In September 1944 it was the home of the the10. Schnellbootflottille.

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Wn228 Schlüsselblume Bassin Loubet

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Wn228 Schlüsselblume Bassin Loubet

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Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Driving along the docks.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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RAF air photo showing the Bassins and the main target A.

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High flying RAF Spitfires were used to take this photo.

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Cameras on Spitfires.

Wn228 Schlüsselblume Bassin Loubet

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The German armies map of this part of Boulogne

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Wn228 Schlüsselblume Bassin Loubet

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Mineesuch, Raümboot & Schnellbootflottille.
1./Res.Flak.Abt.765.

2 x Feldm
1 x Vf/MG Schnabelstand (observation).
5 x Vf2a shelters.
2/3 x Vf7ammition bunker.
1 x R134 ammunition bunker.
1 x Searchlight.
1 x listening station.
1 x R607 large ammunition bunker.
2 x Vf58c Tobruks.
1 x Torpedo Bunker (plus Mines).
1 x S. Bunker.
3 x 3.7cm Flak (increased to six).
1 x 5cm KwK L/60 Pak.

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3.7cm Flak..

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Vf58c Tobruks.

Wn228 Schlüsselblume Bassin Loubet

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Axis History plan

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Wn228 Schlüsselblume Bassin Loubet

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Brittaniawall a berm of earth, probably placed there to shelter the port from the winter weather, this held at different times, batteries of 2cm & 3cm Flak. By September 1944 there were six 3.7cm Flak guns in prepared positions on the wall. The S/R Boot bunker on the tip of the port with the Torpedo bunker behind. There was also at StP Hasso, Dannes. A large underground torpedo & mine storage.

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Minensuchboot.

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Raümboot.

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Schnellboot.

Wn228 Schlüsselblume Bassin Loubet

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1 September 1944 RAF PRU Remonter le Temps                                        17 September bombing mission AIR 14/3676 - War Album 1944 Vol VI 03 Boulogne

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Wn228 Schlüsselblume Bassin Loubet

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1 September 1944 just before the bombing of the port and the S&R boot bunker.

 

 

 

 

 


17 September 1944 370 Lancaster´s, 351 Halifax, 41 Mosquitoes dropped more than 3,000 tons of bombs on German positions around Boulogne in preparation for an attack by Allied (mostly Canadian) troops. The German garrison surrendered soon afterwards. I Halifax and 1 Lancaster was lost. Many civilians and Germans were also killed. [page 585 Bomber Command War Diaries].

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Halifax.

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Grand Slam being dropped.

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The first Tallboy to be dropped on Asley Walk in the New Forest.

Wn228 Schlüsselblume Bassin Loubet

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Half the Flak defence

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Wn228 Schlüsselblume Bassin Loubet

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Brittaniawall, a berm of earth made to protect the harbour from the weather by the French in more peaceful times.

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Vf7a ammunition bunker.

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Flak position.

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3.7cm Flak.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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The view from the town.
Red - where the S/R-Boot bunker was.
Yellow - where the torpedo bunker isn.
E-Boat means in British parlance 'E' - enemy but it should be S-Boot, Schnell/fast. Raümboot is translated to War boat. On the allied side, all fast small boats were E-Boats. There were two ways of arming a small boat, either guns or torpedoes. Weight is the major problem, two or even four torpedoes are very heavy so only so much ammunition and guns could be carried, so a gun boat without torpedoes were the other option, more guns but not the weight of a torpedoes explosive power. The blue lines are the Brittaniawall.

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Wn228 Schlüsselblume Bassin Loubet

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WO 252/151 Northern France Check Reconnaissance

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Wn228 Schlüsselblume Bassin Loubet

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The entrance into the port and also its the river Liane.

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Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Pre war post card of the port and Casino, The Casino was obliterated by the September bombing.

Wn228 Schlüsselblume Bassin Loubet

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1944

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Wn228 Schlüsselblume Bassin Loubet

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2cm Flak 38 overlooking the S/R Boot bunker.

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Flak 38 barrel.

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Ammunition.

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Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Torpedo Bunker looking along the fishing quay.

The S-boot bunker in Boulogne was designed for 12 boats and behind was a further ammunition bunker for the storage of torpedoes/mines. This torpedo bunker had access ramps on both sides to the railway and a small track connected the two bunkers. The roofs had a thickness of 200 cm. which, at the beginning of the war, was sufficient to protect the boats against most British bombs. However, as the war progressed, the bombs got larger and more efficient. On June 9th 1944 the Royal Air Force dropped their new "Tallboy" (12,000 lb) for the first time and just a week later, the bunker in Boulogne were attacked by the same type of bomb. Nearly 300 bomber participated in that attack and 10 Tallboys were dropped.

This attack made the harbour unusable and the Germans quickly moved all their undamaged boats to the base in IJmuiden.

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Ijmuiden schnellboot bunker.

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Ijmuiden schnellboot bunker.

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Wn228 Schlüsselblume Bassin Loubet

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WO 252/151 Northern France Check Reconnaissance

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Wn228 Schlüsselblume Bassin Loubet

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A British photo taken on the 25 May 1945 of the docks and the Torpedo bunker on the right Where the cranes are, is the coal wharf. Originally coal ships would load here for shipment abroad.

Boulogne become the base for S- and R-boats, the S-Boot Bunker was started in 1940, at the construction of which, the young civil engineer Fähnr. z.S. Eugen Stroh was acting as site manager. From his archives are the pictures of SBB Boulogne. On 21.06.1941 the first four boxes were ready and were used by boats of the 4. SFltl. A further extension of a length of 116 m and a width of 50 m for four additional boxes was following. The strength of the cover was at 3,5 m, the walls 2 to 3 m. Both bunkers were built on a foundation of 18 - 20 m long stakes.

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Wn228 Schlüsselblume Bassin Loubet

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WO 252/151 Northern France Check Reconnaissance

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Wn228 Schlüsselblume Bassin Loubet

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A closer look at the Torpedo Bunker.

During the evening of the 15th June 1944 the RAF bombed the S-Boot harbour of Boulogne. While nine minesweepers, two guard vessels, and three minesweeper tenders were sunk, the 2. SFltl left harbour early enough, before the S-boot-bunker was penetrated by Tallboy bombs. As for Boulogne town, it was the worst raid so far as at least 200 towns people were killed in the raid. The visibility was not so clear as the last attack on LeHavre.
1 x Halifax was lost.
155 x Lancaster´s.
130 x Halifax.
12 x Mosquitoes.
1, 4, 5, 6, and 8 Group RAF took part.
I believe around 10 Tall Boy bombs were used.

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Lancaster.

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Halifax.

Wn228 Schlüsselblume Bassin Loubet

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WO 252/151 Northern France Check Reconnaissance

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Wn228 Schlüsselblume Bassin Loubet

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Another view down the coal dock. Now a fishing dock.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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SK Torpedo and Minebunker.

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Sowing mines as in sowing seeds.

Wn228 Schlüsselblume Bassin Loubet

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MKB Bunkertour

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Wn228 Schlüsselblume Bassin Loubet
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It was not only to store Torpedoes and Mines but also to work on them to repair them from storage inland to being placed on board boats. Motors, timers, fuzes, explosives, etc would be checked and set ready for one of the boats to pull around to the dock and load up, or the weapons would be taken to the covered dock and loaded there under cover of thick concrete, impervious to British bombs at the time.

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Loading torpedoes.

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Torpedo storage.

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Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet
SK bunker

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These are the two entrances possibly arrivals.

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Plan.

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Torpedoes on trolleys.

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Railway wagons delivering torpedoes.

Wn228 Schlüsselblume Bassin Loubet

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ADM 199/1607 Tactical Targets Boulogne

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Wn228 Schlüsselblume Bassin Loubet

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Another RAF target photo: -
aa - Wn227 Sonnentau with 2 x 7.5cm Flak. & five machine guns.
  z - Brittaniawall earth berm with 3 x 3.7cm Flak and a Vf7a ammunition bunker.
  v - Warehouses with Luftschutzbunker. Air-raid bunkers.
  t - Station platforms.
  y - Torpedo/S -Bunkers.
  s - R611 Casemate 15.5cm s.F.H.(f).
  q - Schleusse - lock into Bassin à Flot.
  x - Wn226 Sonnenblume 3 x 2cm Flak, machinestand and 40cm searchlight.

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aa.

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z.
A Luftwaffe strong point, located more precisely on the Britanniawall dyke of the Bassin Loubet. Britannia Damm. 1. Batterie/Reserveflakabteilung 765 with 6 x 3.7cm Flak 36 guns.

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v.

Wn228 Schlüsselblume Bassin Loubet

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1 September 1944 I am not sure of the true date of this photo?

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Wn228 Schlüsselblume Bassin Loubet

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The large S - R Bootbunker very like a U-boat bunker. 12 S-boats . The roofs had a thickness of 200 cm. On June 8th 1944 the Royal Air Force dropped their new "Tallboy" (12,000 lb, 5,500 kg) for the first time and just a week later, the bunker in Boulogne was attacked by the same bomb. Nearly 300 bomber participated in that attack and 10 Tallboys were dropped.

This attack rendered the harbour unusable and the Germans quickly moved the undamaged boats to the base in IJmuiden.

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Where the boats enter.

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Inside.

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At low tide.

Wn228 Schlüsselblume Bassin Loubet

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Later September 1944                                                                                                                       MCheshireGL720

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Wn228 Schlüsselblume Bassin Loubet

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Then the RAF turned up with a new bomb (also there was some extra destruction just before the port was captured.

 

 

 

 

 

I could find very little information about the destruction of the S-R bunker and I think that is because it was kept secret for some reason. This Postgram was sent out to the crews that took part to show them how well they had done and it was NOT for publication.

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Loading the bomb.

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617sqn RAF dropped several Tallboy bombs that day,

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RAF Woodhall Spa an RAF class 'A' wartime airfield.
2 x T2 hangars.
1 x B1 hangar.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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The view along the entrance side of the bunker. A railway line would have brought the torpedoes/mines from possibly StP Hasso, Dannes.

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Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Inside the repair/maintenance side of the bunker.

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Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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This half does look to be the maintenance side of the bunker. An attack would be made operational, mines or torpedoes would be ordered from the main storage tunnels in chalk hills behind Dannes. A train would be sent to StP Hasso and the required amounts placed in the trucks. The train would then arrive at the docks and be unloaded into the bunker. Each weapon (mine/torpedo) would then be checked over and the settings adjusted to the circumstance of the attack. After passing through the system, they were then placed on narrow gauge railway trucks and moved to the S/R-boot bunker, where they would be loaded onto the assigned boats.

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Plan.

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StP Hasso.
Rommel visiting Dannes complex.

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StP Hasso.
The day of our visit.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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You can see the narrow gauge railway lines set into the concrete floor. The half armoured door, the outer skin has been removed and scrapped. The Torpedoes/Mines would come out of this door and then be moved across to the main S-Boot bunker, ready for use.

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Inside the bunker, torpedoes would be transported by overhead railways around the building.

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Overhead railways.

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Plan.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Part of the door opening mechanism. As the door was very heavy. It would need a lot of turns to the meter to open it.

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The door half open.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Part of the door opening mechanism.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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The light railway tracks.

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Plan

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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The doors are in the open position.

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Plan.

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Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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The view onto the dock.

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Gunner.

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Signal man.

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Wn228 Schlüsselblume Bassin Loubet

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Wn228 Schlüsselblume Bassin Loubet

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Inside an S-Bootbunker loading torpedoes.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Surprisingly little damage done to the bunker.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Air ventilation shaft.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Plan.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Plan.

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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Glass telephone insulators.

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Bunker phone (MKB Bunkertour)

Wn228 Schlüsselblume Bassin Loubet

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26 January 2020

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Wn228 Schlüsselblume Bassin Loubet

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I have found lot of information from Die Schnellboot-Seite.
More info from the Archive Hub.

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Buffalo Grill the favourite watering hole of MKB Bunkertour.

 

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