Number of bunkers

1

Bunker length

333 m

Bunker width

192 m

Bunker height

17 m

Total number of pens

15

Number of wet pens

5

Number of repair pens

10

AA guns on the roof ?

yes

Total surface

65859 m2

 

Pens A to C
Pens
Wet
Length
115 m
Width
17 m
Berths
2 berths each : A1-A2 B1-B2 C1-C2
Max number of U-boats/pen
3 U-boats/pen
Entrance protection
Double doors

 

Pens D and E
Pens
Wet
Length
96 m
Width
17 m
Berths
2 berths : D1-D2 E1-E2
Max number of U-boats/pen
3 U-boats/pen
Entrance protection
Single shutter

 

Pens 1 to 8
Pens
Dry-dock
Length
Between 96 and 99 m
Width
11 m
Max number of U-boats/pen
1 U-boat/pen
Entrance protection
Twin shutters

 

Pens 9 and 10
Pens
Dry-dock
Length
114 m
Width
13,5 m
Max number of U-boats/pen
1 U-boat/pen
Entrance protection
Twin shutters

 

The U-boat base of Brest

 

 

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