fighting ships of the world



WESER aircraft carrier


Name No Yard No Builder Laid down Launched Comp Fate
Weser (ex-Seydlitz)   940 Deschimag, Bremen 29/12/1936 19/1/1939 --- suspended 6/1943, scuttled incomplete 29/1/1945


Displacement standard, t


Displacement full, t


Length, m

201.5 wl 217.0 oa

Breadth, m

21.8 wl 32.0 fd

Draught, m

7.90 deep load

No of shafts



3 sets Deschimag geared steam turbines, 12 Wagner boilers

Power, h. p.


Max speed, kts


Fuel, t


Endurance, nm(kts) 6500(19)

Armour, mm

belt: 80, main deck: 30, slopes: 50


5 x 2 - 105/60 SK C/33, 5 x 2 - 37/80 SK C/30, 12 x 2 - 20/65 C/38, 18 aircraft (Bf109T fighters, Ju87C, Fi 167 diving bombers)


3x FuMO 21, FuMO 25 radars




Aircraft facilities (fd - 6,000 m², ha - 1,879 m² / 10,636 m³): Flight deck: 200.0 x 30.0 m. Hangar: 137.5 x 17.0 (fore) - 12.0 (middle, aft) x ? m. Two lifts, each (15.2 x 14.3 m, 6.5 t). There were 2 catapults of K-252 type. Aircraft fuel stowage: unknown. 


Year fighters diving bombers
1943 (planned) 10 Bf109T 8 Ju87C

Ship project history: In June, 1942 heavy cruiser Seydlitz was 95% complete but Hitler, impressed by Japanese attack on Pearl Harbor and reflecting on loss of Bismarck, agreed 26/8/1942 that Seydlitz should be completed as aircraft carrier. Work started in December, 1942. Ship was stripped of all superstructures and turrets. Works (dismantling of cruisers superstructures and armament) were suspended half year later under Hitler`s order and 2/4/1944 hull was towed to Königsberg and used there as hulk. 29/1/1945 incomplete carrier was exploded and scuttled. Later wreck was salvaged by Soviet Navy and scrapped in Leningrad.

Ship protection: 80mm main belt (3.75m in height) protected about 70% of ships length and was inclined at 12.5 outside. It was closed by 80mm bulkheads. 3.85m in height fore belt had 40mm thickness (20mm near stem), 2.75m in height aft 70mm belt was closed by 70mm aft bulkhead of steering gear compartment. 30mm main deck had connected with lower edge of 80mm belt by 50mm slopes, outside this area it was flat and 40mm thick. CT had 150mm sides and 50mm roof.

Ivan Gogin, 2008-14