S-Tank development

[Grey Havoc]

I'll start off with the [Swedish language] video below (h/t Damian90 over at MilitaryPhotos.net):

http://www.youtube.com/watch?v=MiWCpIJ5dBw&feature=player_embedded

 

[Pioneer]

Hey nice find Grey Havoc
Some great and interesting footage! Especially the nuclear blast test simulations on the S-Tank design!

Thanks again

Regards
Pioneer

 

[Grey Havoc]

Swedish Tanks – Part XVI: The S-Tank (1956-1961) | For the Record

 

[Grey Havoc]

Swedish Tanks – Part XVII: Strv 103 | For the Record

 

[Grey Havoc]

Turretless Swede: Strv S

A blog about World War II era archive documents, primarily dealing with armoured warfare.

www.tankarchives.ca

Sven Berge headed a project for a new tank. The first blueprints are dated 1956, and by 1957, three new potential designs were ready:

• Strv A: 42.5 tons, well armoured, with a loading mechanism, comparable in size with the American M60, and rather slow.
• Strv T: 32.5 tons, similar to the Leopard 1 in design. Effective power was about 25-30 hp/ton, armour was no greater than 75 mm.
• Strv S: a completely new concept of a turretless tank. Its combat mass was estimated at 30 tons and it had extremely good protection due to its low silhouette.

 

[Grey Havoc]

https://www.reddit.com/r/TankPorn/comments/y7d7ld

View: https://www.reddit.com/r/TankPorn/comments/y7d7ld/cage_armor_is_mounted_to_the_front_of_a_strv_103/

https://www.reddit.com/r/TankPorn/comments/y89ldm

View: https://www.reddit.com/r/TankPorn/comments/y89ldm/a_stridsvagn_103_with_a_cope_cape_designed_to/

Note the thermal signature suppression measures in the second image (they are also mentioned in the reddit post comments).

 

[Grey Havoc]

https://www.reddit.com/r/TankPorn/comments/mbhfhw

View: https://www.reddit.com/r/TankPorn/comments/mbhfhw/five_stank_prototypesfrom_the_0_series_at/

https://www.reddit.com/r/TankPorn/comments/q2jbx3

View: https://www.reddit.com/r/TankPorn/comments/q2jbx3/stridsvagn_103_stank_demonstrates_digging_itself/

 

[Grey Havoc]

Report from British evaluation of the S-tank (1968) – Swedish tank archives

In 1968, the British army borrowed two brand new S-tanks from Sweden and subjected them to six months of various trials in Britain. This report is covers the result of those trials. Since it’s in English, I’m not going to summarize it further – read it yourself and draw your own conclusions. However, keep in mind that the S-tanks tested are very early models that are suffering from some teething problems.

 

[blockhaj]

Product names:

• Bofors VK 105 X 59: strv S1 and S2 prototypes
  • strv S1 A: S1 edition 1, electric shooting rigg
  • strv S1 B: S1 edition 2, driving rigg (unconfirmed)
  • strv S1 C: S1 edition 3, driving rigg, same as S2B
  • strv S2 A: S2 edition 1, driving rigg
  • strv S2 B: S2 edition 2, driving rigg, same as S1C
• Bofors VK 105 S 60: strv 103-0 preseries
• Bofors VK 105 S 64-2 A: strv 103A, B

(EDIT 1: seems -2A refers to strv 103B)
(EDIT 2: seems -2A could refer to a standard set by the prototype tests: S1A, S1B, S1C, S2A, S2B)
(EDIT 3: confirmed edit 2)

Chassis derivatives:

• Bofors VK 155 S 62: VK 155 L/50, aka 15,5 cm bkan 1
• Bofors VEAK 40 X 62: VEAK 4062 SPAAG

 

[blockhaj]

https://www.secretprojects.co.uk/threads/bofors-veak-40-x-62-vagn-eldledning-automatkanon-40-mm-experimental-m-62.42708/

VEAK derivative