Swedish tanks and armoured vehicle projects from WW2

[sp15]

Ok so uh i dont really know how or when this thread actually made it trough to the forums but i thought id clean it up now if you dont mind
Anyhow i have been working on a swedish tank tree for Wot for a while now and i thought id share what info i have found on swedish tank projects from ww2.


Medium tanks


Landsverk Lago

Originally designed as a export tank the Landsverk Lago was a modern medium tank which had a prototype completed by 1941. The tank was a 18 ton design with 34mm of armor and a turret mounted 47 or 57mm gun. In 1941 the prototype that was being built for hungary was turned into the prototype for what would become the Strv m/42.

Weight: 18 ton
Length: 6m
Width: 2,32m
Height: 2,45m
Ground pressure: 0,5m/cm^2
Max speed: 45kph
Ground clearence: 0,4m
Trench: 2,4-2,8m
Fording: 1m
Armor: 34/24/24mm (Front/Side/Rear)
Armament: 47mm or 57mm


Strv m/42

The Strv m/42 was a Swedish medium tank produced in 1943-1944. A total of 226 were built in various configurations. The tank was roughly equal to early model M4 Sherman’s and would serve with the Swedish army until the 60s.

Combat weight: 22,5t
Maximum speed: 45 km/h
Armour (hull): 55/25/20
Armor (turret): 55/25/20
Crew: Commander, Gunner, Loader, Driver
Armament: 7.5 cm Strvkan m/41
Depression/elevation: -15°/+25°


Strv m/42 "Delat torn"

In 1943 It was recognized that the Strv m/42 even though it had just entered production was not well armed enough to take on the new generation of Russian and german medium tanks, therefore the army command requested Bofors to start work on a new turret capable of taking the high velocity 75mm Pvkan m/43 gun. By 1944 bofors had completed drawings for the new turret which they called “Delat torn” because the gun divided the crew in the turret, this new turret also had a very unique feature which was a automatic loading system that could fire up to 3 rounds in quick succession before having to be reloaded. Work on a prototype for this turret began in 1945 and a full scale mock-up was also constructed. The prototype was completed late 1945 and was used in troop trials in 1946 where several problems were found with the design and it was discontinued.

Weight: 23,5t
Hull armour: (55/30/25)
Turret armor: (60/30/30)
Lenght: 6,075m
Width: 2,34m
Crew: 4 (commander/radio operator, driver, gunner, loader)
Ground clerance: 0,4m
Track width: 0,38m
Armament: 75mm Lvkan m/30 (3 round Autoloader), 75mm Pvkan m/43 (3 round Autoloader)
Depression/Elevation: -15/+25 (Elite -10/+12)
Penetration: 139mm or 117 with 75mm Lvkan m/30)
Carried ammo: 59 rounds
Power to weight ratio: 17,4hp/t
Max speed: 45 km/h
Engine: Volvo V8B (410hp)


Landsverk Pricken

Starting development in 1943 the Pricken was supposed to be the Swedish answer to the T34 and the new generation of medium tanks. The Pricken was essentially an enlarged Strv m/42 with weigh 30 tons and feature 70mm thick sloped frontal armor. The tank was to be powered by a modified version of the Volvo A8B engine that was to produce 450 hp, whch would give the tank an acceptable power to weight ratio of 15 hp/t and a top speed of 50 kph. Drawings of the tanks major components such as the hull and two variations of the drivetrain layout was ready by 1944. However instead of building the new tank the resources went into the Pvkv m/43 tank destroyer which already had a prototype and was more or less ready for production. The armament of the Pricken was to be the 75mm Pvkan m/43 which also armed the Pvkv m/43, this gun was more or less equal in power to the german 75mm L/70 and would on the Pricken either be used in a conventional configuration or with a 3 round autoloader.
Currently we have only one drawing of the hull from the top, but you can clearly see that the design is basically that of an enlarged Strv m/42, and we also know that Landsverk did make a couple of concept drawings for a improved Strv m/42 with sloped armor which could be used to complete the Pricken.

Weight: 30 tonnes
Length: 6,3m
Width: 2,8m
Width with side skirts: 3m
Turret ring diameter: circa 1500mm (same as Strv m/42)
Height: 2,5m
Track width: 550-600mm
Ground pressure: 0,6-0,56kg/cm^2
Number of road wheels: 6-8
Armor: 70mm frontal, 20mm floor (rest to be determined later)
Engine: 450hp
Top speed: 50kph
Layout of transmission and breaks: http://i.imgur.com/87NvZ3g.jpg
Drawing for improved Strv m/42: http://i.imgur.com/1Axxqzb.jpg


Light tanks
I will post this info later...

Articles on varoius swedish tanks

Strv fm/21 & Strv m/21-29
http://ftr.wot-news.com/2014/03/07/swedish-tanks-part-i-strv-m21-29/

Strv fm/31 & Strv m/31
http://ftr.wot-news.com/2014/03/12/swedish-tanks-part-ii-strv-m31-strv-fm31/

Landsverk L-100 & L-120
http://ftr.wot-news.com/2014/03/15/swedish-tanks-part-iii-landsverk-l-100-and-l-120/

Strv m/37 & Strv m/41
http://ftr.wot-news.com/2014/03/27/swedish-tanks-part-v-strv-m37-and-strv-m41/

Strv m/38, m/39, m/40L & m/40K
http://ftr.wot-news.com/2014/03/21/swedish-tanks-part-iv-landsverk-l-60/

Sav m/43
http://ftr.wot-news.com/2014/04/08/swedish-tanks-part-vi-sav-m43/

Strv m/42
http://ftr.wot-news.com/2014/04/18/swedish-tanks-part-vii-strv-m42/

Pvkv m/43
http://ftr.wot-news.com/2014/05/08/swedish-tanks-part-viii-pvkv-m43/

Strv m/41-S/III
http://ftr.wot-news.com/2014/10/30/strv-m41-s-iii-upgrade-new-tank-found-in-archives/

 

[podcat]

Cool! Go sweden!

 

[BiB]

Thread actually made visible to non-mods now!

 

[Beagá]

Some rather good info. Sweden is a nice nation to go ahistorical so the more stuff the better.

 

[Axe99]

Top stuff SP15 . On the by, if you're doing a 'mega post' and worried about losing it, it can be good to do it in some kind of editor (Word, wordpad, google docs, what-have-you), that way if you're logged out, or the net drops out, or whatever, you don't lose it. Which is my way of saying I feel your pain .

 

[vonhavoc]

Another thing might be some aggressive cookie settings. I stay logged in for the forum unless I clear the cookies or manually log out.

Also, on topic, nice work for the increase of flavor

 

[kolpo]

Hungarry also used landsverk tanks during WW2, I wonder how the game is going to cover this. Shall they simply add those tanks to the Hungarian tank tech tree, or can you buy tanks or production licenses from Sweden(but how would that work without money, maybe IC as payment?)?

 

[Razor]

A bit OT but I think it's a bit sad that we cannot sell equipment to neutrals. I recall Sweden got many aircrafts that way.

 

[Hayro]

Thread actually made visible to non-mods now!

Theres is super sekrıt vision goggles that only mods have??

 

[Darkath]

Some rather good info. Sweden is a nice nation to go ahistorical so the more stuff the better.

They already have a certain "Dan Lind" admiral and battleships lol.

 

[Holy.Death]

A piece of advice - keep what you've posted in a separate .txt. That way you're not losing what you've written so far. I have lost my fair share of post when some forums were unstable or posts didn't get posted for some technical reasons, until I myself started using this method.

 

[Darkath]

A piece of advice - keep what you've posted in a separate .txt. That way you're not losing what you've written so far. I have lost my fair share of post when some forums were unstable or posts didn't get posted for some technical reasons, until I myself started using this method.

Or install Lazarus form recovery extension in chrome

 

[wingo]

I just press ctrl+a, ctrl+c before clicking "submit" on forums. I learned my lessons, and this is probably the easiest method

 

[Kovax]

Hungarry also used landsverk tanks during WW2, I wonder how the game is going to cover this. Shall they simply add those tanks to the Hungarian tank tech tree, or can you buy tanks or production licenses from Sweden(but how would that work without money, maybe IC as payment?)?

It gets even more confusing when you continue past the initial production licenses, to where Hungary started making upgrades and significant alterations to the "Toldi" and "Turan" designs, and introduced "Zrinyi" SPG and "Nimrod" SPAA/AT variants based on lengthened or otherwise heavily modified chassis. The Swedish and Hungarian versions of the two tanks took different development paths. The first time I saw a photo of a Turan II, I wondered why that late-model "Panzer III" with the armor skirts looked odd for some reason.....

 

[kolpo]

It gets even more confusing when you continue past the initial production licenses, to where Hungary started making upgrades and significant alterations to the "Toldi" and "Turan" designs, and introduced "Zrinyi" SPG and "Nimrod" SPAA/AT variants based on lengthened or otherwise heavily modified chassis. The Swedish and Hungarian versions of the two tanks took different development paths. The first time I saw a photo of a Turan II, I wondered why that late-model "Panzer III" with the armor skirts looked odd for some reason.....

yes I read that those SPAA variants where really good for that era. To a lesser extent has the USSR the same issue, they used Christie suspensions.

 

[Tyson_48]

Here is the Swedish main battle tank in action:
https://www.youtube.com/watch?v=yWoPpxosDQY

 

[Jamey]

Before reading this, I knew almost nothing about Swedish tanks. Now I know more. Thanks!

 

[sp15]

Sorry to the mods or whoever goes trough these posts before they are approved, im not used to how this forum works and i therefore doubleposted, anyhow lets continue with the tanks.


Light tanks


Landsverk L-120

The Landsverk L-120 was a light tank design akin to the German Pz1 only weighing 4,5 tons. One prototype was produced for Swedish army trials in 1937. The L-120 was armed with a 6,5mm machinegun but was also offered with a 20mm autocannon. After the Swedish army trials the tank was rejected in favor of the Czech AH-IV tankette which became the Strv m/37, it was bought back by Landsverk and later sold to Norway. The modified L-120 known as Rikstanken was used by the Norwegian cavalry until the 1940 German invasion when it was captured and likely destroyed soon after.

Weight: 4,5 tons
Length: 4,05m
Height: 1,65m
Width: 1,750m
Crew: 2
Armament: x2 8mm Ksp m/36 strv or 20mm Madsen
Engine: Volvo DC (85hp)
Max speed: 50kph
Armor layout: http://i.imgur.com/Wz0EbSF.jpg


Strv m/38

This tank was a development of the Landsverk L-60 tank originally developed for the Irish army in 1935. Swedish interest in the tank started in 1936 and it was soon decided that two Swedish prototypes called L-60-S should be made. Both were completed and tested by the swedish army and a order for 16 tanks including a prototype rebuilt to production standard were ordered in 1938.
The design was very modern at the time of the start of ww2 and featured torison bar suspension aswell as welded and to some degree sloped armor and a relatively powerfull engine. This coupled with a 37mm main gun and gave you a pretty mobile and small tank comparable to early Panzer 3's.

Weight: 8,525t
Crew: 3 (Commander, Gunner/Loader, Driver)
Length: 4,8m
Width: 2,075m
Height: 2,05m
Ground clerance: 0,35m
Track width: 286mm
Engine: Scania-Vabis 1664/65 (142hp at 2300 rpm, Gasoline/Alcohol, weight 550kg)
Power to weight: 16,5
Max speed: 46kph
Armament: 3,7cm Strvkan m/38
Ammo load: 100 rounds
Armour (Hull): 15/13/13
Armour (Turret): 15/13/13
Depression/Elevation: -10/+25
Radio: 20W Sv, 25W Sv/1 m/39-42
L-60-S tank with prototype Strv m/39 like turret armed with a 20mm madsen (http://i.imgur.com/dYztywU.jpg)


Strv m/39

When the contract for 20 more tanks of the L-60 type was given to landsverk in 1939 it was decided that a improved version with a new turret closer to the one used on the prototype would be ordered, this became the Strv m/39. The vehicle was generally unchanged but a extra machinegun was added to the turret front and the steering was changed from a steering wheel to levers, something which later was retrofitted on to the m/38 aswell. The tank entered production in 1939 but due to Bofors being unable to deliver the guns the 20 tanks were not ready untill 1941. The tank was also later given extra applique armor later during the war to give it around 50mm of frontal armor which was to resist 37mm shells.

Weight: 8,93t (With add on armor 9,36t)
Crew: 3 (Commander, Gunner/Loader, Driver)
Length: 4,8m
Width: 2,075m
Height: 2,05m
Ground clerance: 0,35m
Track width: 286mm
Engine: Scania-Vabis 1664/65 (142hp at 2300 rpm, Gasoline/Alcohol, weight 550kg)
Power to weight: 16,3
Max speed: 45kph
Armament: 3,7cm Strvkan m/38
Ammo load: 100 rounds
Armour (Hull): 15/13/13 (+35mm)
Armour (Turret): 15/13/13 (+35mm)
Depression/Elevation: -14/+25
Radio: 25W Sv/1 m/39-42


Strv m/40L

In 1940 it became clear that WW2 was in full swing and that the ordered TNH tanks from czechoslovakia would not be delivered and instead be used by the germans. This mean that Sweden was in desperate need of tanks and that they had to be built within the country. As no other company even built tanks Landsverk was given a order for 100 L-60 tanks. The design was changed yet again to be easier for mass production, these changes included a completely reworked engine bay and a new gearboxaswel as minor changes like the ability to mount a mortar on the rear engine deck. This version was also able to mount the applique armor, and a total of 100 were built between 1941 and 1942.

Weight: 8,93t (9,36t)
Crew: 3 (Commander, Gunner/Loader, Driver)
Length: 4,9m
Width: 2,075m
Height: 2,05m
Ground clerance: 0,35m
Track width: 286mm
Engine: Scania-Vabis 1664/65 (142hp at 2300 rpm, Gasoline/Alcohol, weight 550kg)
Power to weight: 16,3
Max speed: 45kph
Armament: 3,7cm Strvkan m/38
Ammo load: 100 rounds
Armour (Hull): 15/13/13 (+35)
Armour (Turret): 15/13/13 (+35)
Depression/Elevation: -14/+25
Radio: 25W Sv/1 m/39-42


Strv m/40K

As landsverk moved on to building heavier tanks in 1943 production of the L-60 was given to Karlstad mekaniska verkstad. The version they built was based of the Strv m/40 but was longer, had a bigger engine and had all the applique armor built in from the start. However when the tank ntered production in 1943 it was already long since obsolete. A total of 80 tanks were produced between 1943 and 1944.

Weight: 10,9t
Crew: 3 (Commander, Gunner/Loader, Driver)
Length: 4,97m
Width: 2,08m
Height: 2,125m
Ground clerance: 0,34m
Track width: 286mm
Engine: Scania-Vabis L 603 (162hp, Gasoline/Alcohol)
Power to weight: 16,3
Max speed: 45kph
Armament: 3,7cm Strvkan m/38
Ammo load: 100 rounds
Armour (Hull): 48/18/18
Armour (Turret): 50/20/35
Depression/Elevation: -14/+25
Radio: 25W Sv/1 m/39-42


Landsverk Terro

Developed in 1941 the Landsverk Terro (or L-60-IV) was basically a shorter Lago with a L-60 turret. The tank was offered to the swedish army in 1941 and 42 but became obsolete as the L-60 would be upgraded to the same armor level. Originally the tank was to be armed with a 37mm gun but later it was re designed with a 57mm gun.

Weight: 12,5-12,85t
Armor: 50/25/20
Floor armor: 13mm
Roof armor: 8-10mm
Engine: Scania-Vabis (160hp), Scania-Vabis type 801 (195hp)
Crew: 4 (Driver, Radio operator/Gunner, Gunner/Loader, Commander)
Armament: 37mm (Later 57mm)
Depression/Elevation: -15/+25 (37mm)
Track width: 350mm
Length: 5150mm
Width: 2250mm
Height (turret roof): 2210mm
Height (with commanders cupola): 2300mm
Ground clerance: 400mm
Max speed: 45kph
Power to weight ratio: 15,2hp/t


Strv m/41

The Strv m/41 was a licenced tank design originating from czechoslovakia. In germany the tank originaly ordered by sweden became known as the Panzer 38(t) Aufs S and were used in their campaigns against france and russia. However in 1941 Sweden got the license to produce the tank and a soft steel prototype. Eventually production of the tank started in 1942 at Scania-Vabis and 116 tanks were produced untill 1943. After that production switched to an upgraded version with heavier armor (50mm compared to earlier models 25mm) and a bigger engine. Of the later type 104 were built.

Strv m/41-SI (Early model)

Weight: 10,5t
Length: 4,605m
Width: 2,14m
Height: 2,35m
Armour: (25/15/15) mm
Crew: 4
Engine: Scania-Vabis 1664 (142hp)
Max speed: 48kph
Armament: 37mm Strvkan m/38

Strv m/41-SII (Late model)

Weight: 11t
Length: 5,54m
Width: 2,14m
Height: 2,35m
Armour: (50/15/15) mm
Crew: 4
Engine: Scania-Vabis 603 (162hp)
Max speed: 48kph
Armament: 37mm Strvkan m/38


Strv m/41-S/III

In 1943 Scania-Vabis made two proposals for an improved version of the Strv m/41 with sloped armor and a 57mm gun. The proposals were based on studies of a captured T34 in finland and two versions were offered, one re using as many parts from the m/41 as possible to speed up the re tooling process and one with a larger hull and different suspension with a new 220hp Scania-Vabis engine. Later Bofors developed a new turret equipped with a 5 round autoloader for a longer 57mm gun, but the project never whent anywhere as the Strv m/41 production swithched to Sav m/43 in 1944.

Armor (Hull)
Upper front: 35mm at 30dg
Armor joint between LFP and UFP: 65mm
Lower front: 30mm at 26dg
Floor: 15mm
Lower side: 30mm at 78dg
Upper side: 30mm at 55dg
Rear: 15mm at 77dg
Drivers hatch: 60mm (rounded)
Floor armor above tracks: 10mm
Drawing with "autoloader turret": http://i.imgur.com/m8biYGb.jpg

Armor (Turret)
Front: 50mm at 60dg
Front roof: 25mm at 30dg
middle roof: 13mm
Rear roof: 15mm at 30dg
Gun mantlet: 25mm at 45dg (rounded)
Turret rear: 30mm at 60dg (rounded)
Turret floor: 13mm

Armament: 57mm L/50,5 Pvkan m/43
Ammo capacity: 80 rounds
Weight: 13 ton
Top speed circa: 45kph
Atricle: http://ftr.wot-news.com/2014/10/30/strv-m41-s-iii-upgrade-new-tank-found-in-archives/