360 mm/45 md. 24
Largest guns ever fitted to a Laywenranian ship, they were of foreign design and initially produced abroad, but later on, a number of guns was built domestically. They were quite accurate and reliable. They were of the full-length wire wound type and used with a Welin block. The md. 32 increased the elevation to 45°
340 mm/45 md. 32
Modernised and rebored variants of the 320 mm/45 md. 19.
320 mm/45 md. 35
Modern variant of the 320 mm md. 19. Constructed of A tube, two B tubes to the muzzle, two C tubes, two D tubes and jacket. The breech bush screwed into the jacket, locking the parts together, and a collar was shrunk on the breech bush and the end of the collar covered by a small ring with a shoulder. Both collar and ring were placed in position when hot. A Welin breech block was used. They were renowned for their excellent shooting capabilities.
320 mm/45 md. 19
The design of this gun was already started in 1910, but none was delivered prior to 1919. Constructed of A tube, two B tubes to the muzzle, two C tubes, two D tubes and jacket. The breech bush screwed into the jacket, locking the parts together, and a collar was shrunk on the breech bush and the end of the collar covered by a small ring with a shoulder. Both collar and ring were placed in position when hot. A Welin breech block was used. They were renowned for their excellent shooting capabilities.
280 mm/52 md. 35
These guns were specifically designed to equip the large trade raiders, giving them a firepower advantage over other cruisers. Constructed of A tube, loose liner, two-part shrunk-on jacket, a breech end piece was screwed on hot to the jacket, and a breech block supporting piece was screwed into the breech end-piece. The breech block was a horizontal sliding type.
200 mm/50 md. 30
This weapon was of simple construction with a thick autofretted A tube, shrunk jacket and breech ring. The Welin breech-block opened upwards. The older variant was the md. 19, with a barrel length of 20 calibres.
150 mm/57 md. 31
The Guns were used as the primary armament for the light cruisers. Originally planned to be used as dual-purpose guns with a maximum elevation of 70°, but they were realised as with a maximum elevation of 45°. The SP gun was considered very successful, contrary to the DP prototypes. The guns were in individual cradles, with training and elevation supplied by an electric motor with hydraulic drive and RPC. These guns were built with an autofretted jacket, breech ring and loose barrel and used a vertical sliding block.
140 mm/50 md. 30
The guns were provided with power elevation and training and fitted with RPC. Built with a monobloc autofretted barrel and a breech ring that was screwed on cold. The breech mechanism was a sliding block of semi-automatic operation.
130 mm/50 md. 35
Used an autofretted barrel and a breech ring. The breech block was vertically sliding in the DP version but horizontally sliding in the SP version. Both breech mechanisms were semi-automatic, being loaded by hand and power-rammed.
120 mm/50 md. 20
The first model of this gun was designed just at the dawn of the second Cataclysm, being of built-up construction with screw-breeches. They were later modernised, with the md. 32 being of monobloc construction with semi-automatic sliding breech-block mechanism. All models of the gun were considered very reliable.
100 mm/50 md. 30
These guns equipped the newer destroyers and were from the start intended as Dual Purpose weapons. They had breech rings and a horizontal sliding breech-block. Spring-operated, semi-automatic rammers, which were cocked by the recoil force, were mounted above the guns. These allowed the guns to be loaded at any angle of elevation, an important factor for any AA weapon. Shells were manually inserted into fuze setting machines before being placed into the loading trays. Modernised in 1938 and then designated as "100 mm/50 md. 38"
80 mm/45 md. 28
Dual purpose guns designed as anti-air armament for larger ships and as the main armament for various torpedo ships. Used an autofretted barrel and a semi-automatic breech mechanism. They were considered a satisfactory design but had a rather short barrel life of 650 rounds.
40 mm/60 md. 28
Primary mid-calibre AA-gun used on the most Laywenranian ships until it was replaced by the more sophisticated md. 36. First models used a 20-round fabric belt, but they were replaced by 15-round steel-link belts. Air cooled and recoil operated.
40 mm/70 md. 36
Primary mid-calibre AA-gun used on the most Laywenranian ships, fed vertically by five-round clips. These guns are recoil operated and use a monobloc barrel with a detachable breech ring, breech casing and automatic loader. The breech block is a vertical sliding type. Power-driven mounts, existing in air-cooled and water-cooled variants. Compared to the md. 28 it was significantly easier to manufacture.
25 mm/70 md. 31
Light AA guns used on the most ships prior to the Third Cataclysm, replaced on the most ships by the more advanced md. 38. Used a monobloc barrel and a horizontal sliding breech block mechanism. Spiral magazines held 60 rounds and were spring driven.
25 mm/80 md. 38
Light AA gun used on the most ships during Third Cataclysm, in the late war it was increasingly replaced by the 40 mm/70 md. 35 because of it's higher effect on the target. Used a monobloc barrel and a horizontal sliding breech block mechanism. It took about 30 seconds to change a barrel. The md. 38 was considerably easier to manufacture than the md. 31. Spiral magazines held 60 rounds and were spring driven.
Torpedoes
AST-28
40cm torpedo
AST-42
40cm torpedo
AST-20
55cm torpedo
AST-29
55cm torpedo
AST-39
55cm torpedo
AST-42
55cm electric torpedo
Radar
FuMo Typ 27
The first functional ship-based radar system.
FuMo Typ 31
The first dedicated Air Warning radar to be employed.
FuMo Typ 32
A smaller variant of the Typ 31 radar set. It was installed on many small ships before it was replaced by the Typ 32M
FuMo Typ 32M
Replaced the Typ 32 radar set for small ships.
FuMo Typ 34
This was the most widely used air warning radar set in service during the Third Cataclysm. It was fitted on nearly every ship from light cruisers onward.
FuMo Typ 42
The first set of radar guided AA-FCS, installed on almost all Laywenranian ships.
FuMo Typ 44
Replaced the Typ 42
FuMo Typ 155
Main gun Fire control for larger ships
FuMo Typ 157
Main gun Fire control for larger ships, replaced the FuMo Typ 155