Author Topic: Stridsvagn 103 (S-Tank)  (Read 36224 times)

Offline Jeffry Fontaine

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Stridsvagn 103 (S-Tank)
« on: January 07, 2012, 03:47:18 AM »
Though it is a bit on the small side that is to its advantage the Swedish designed Stridsvagn 103 aka the S-Tank was certainly unique in design. 

Click for larger image

(image source: Wikipedia

I like the bulldozer blade featured on the later versions of the S-Tank and have often thought of an S-Tank without the gun mounted that would be used as an engineer vehicle to carve out fighting positions for other vehicles or clear paths through debris. 

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There is an S-Tank WIP on Missing-Lynx being built by Dennis Andersson that is starting to look very good. 
Dennis Andersson's Stridsvagn 103C (Trumpeter kit) at Missing Lynx

(Click on image or html to view article.  Image source: Dennis Andersson)

Update - Dennis Andersson's Stridsvagn 103C (Trumpeter kit) at Missing Lynx

(Click on image or html to view article.  Image source: Dennis Andersson)


***updated post with additional link and image for the S-Tank WIP on Missing-Lynx***
« Last Edit: February 01, 2012, 03:33:30 PM by Jeffry Fontaine »
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Offline Maverick

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Re: Stridsvagn 103 (S-Tank)
« Reply #1 on: January 07, 2012, 06:52:10 AM »
I did a Maavoimat S-Tank profile back in the day.  I also whiffed a Trumpeter S-Tank to an SPATGW vehicle, removing the gun and replacing it with a bashed missile system.

Regards,

John
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John

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Re: Stridsvagn 103 (S-Tank)
« Reply #2 on: January 07, 2012, 07:45:06 AM »
How about a Strv103 with turret?

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Greg
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Offline Weaver

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Re: Stridsvagn 103 (S-Tank)
« Reply #3 on: January 07, 2012, 08:58:11 AM »
I have a project planned to build a USMC assault-gun/ATGW vehicle based on an S-Tank fitted with a modified 152mm Shillelagh system. Because of the auto-loader, the gun would used fixed cartridge cases, thereby eliminating one of the original system's problems, while the missile would be modified to use the RBS-70's laser-beam-riding guidance system (a laser-beam-riding Shillelagh was tested for real in 1975). The vehicle would also have an M60A2 or A3 commander's cupola (havn't decided which yet)with it's under-armour .50 cal for all-round local defence.

The model would be presented in the type's "final fling" configuration, outside Fallujah in 2006, with AAV-7A1-style EAAK applique armour on the sides, blazer on the front, and modified stowage.

I'm also considering a USMC "Super-Duper Cobra" to go with it. This would be an AH-1W with the AH-1G flat-panel canopy, 30mm M-230 cannon from the Apache and air-launched Shillelaghs instead of Hellfires (an air-launched Shillelagh was tested for real too).
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Re: Stridsvagn 103 (S-Tank)
« Reply #4 on: January 07, 2012, 09:03:09 AM »
I'm liking your thinking!!!!
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Offline Jeffry Fontaine

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Re: Stridsvagn 103 (S-Tank)
« Reply #5 on: January 07, 2012, 09:24:00 AM »
I have a project planned to build a USMC assault-gun/ATGW vehicle based on an S-Tank fitted with a modified 152mm Shillelagh system. Because of the auto-loader, the gun would used fixed cartridge cases, thereby eliminating one of the original system's problems, while the missile would be modified to use the RBS-70's laser-beam-riding guidance system (a laser-beam-riding Shillelagh was tested for real in 1975). The vehicle would also have an M60A2 or A3 commander's cupola (havn't decided which yet)with it's under-armour .50 cal for all-round local defence.

The model would be presented in the type's "final fling" configuration, outside Fallujah in 2006, with AAV-7A1-style EAAK applique armour on the sides, blazer on the front, and modified stowage.

I'm also considering a USMC "Super-Duper Cobra" to go with it. This would be an AH-1W with the AH-1G flat-panel canopy, 30mm M-230 cannon from the Apache and air-launched Shillelaghs instead of Hellfires (an air-launched Shillelagh was tested for real too).


For that time period my suggestion for mounting one of the remote weapons stations might be a bit premature.  I was going to suggest that you consider something other than the cupola from the M60/M60A2 such as the Rafael OWS, Samson RCWS, CROWS, or Kongsberg's M151 Protector RWS in lieu of the cupola but not sure if these were fielded or available in that time frame.  Still something to consider. 

I have been working on creating models of the ammunition in 1/35th scale for the M551/M60A2 and prototyped a semi-combustible cartridge case for the 120mm tank gun ammunition and a 155mm projectile to see what I could come up with on short notice.  The 120mm cartridge case is about the same diameter as the 155mm projectile and close enough to 152mm to not really matter in such a small scale.  The end result proved my theory and I set about acquiring the necessary projectile shapes for a second prototype that would be based on the high-explosive projectile for the WW2 German SiG33 which has the right shape but is about twice as long as it should be.  The next step in the process is to reduce the length of on one of these SiG33 projectiles by about half and mate it up to the 120mm cartridge.  That is pretty much where I stopped for now pending a stable work surface. 

Your Super Sea-Cobra sounds enticing.  You should start a topic on that soon.
« Last Edit: January 07, 2012, 09:29:20 AM by jeffryfontaine »
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Offline Weaver

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Re: Stridsvagn 103 (S-Tank)
« Reply #6 on: January 07, 2012, 09:46:31 AM »
That's right Jeff - I see this as a mid-late 1970s project, with the USMC basically picking up the pieces of the original Shillelagh train-wreck and turning it into something useful that suits them. That would make it too soon for RWS systems, hence the M60 cupola.

Ammo-wise, I'd see then also developing a HESH (HEP) round for the gun, since one of it's jobs would be to demolish obstacles.
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Offline ChernayaAkula

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Re: Stridsvagn 103 (S-Tank)
« Reply #7 on: January 07, 2012, 12:36:23 PM »
Always thought the Stridsvagn 103 would make a decent tank hunter when equipped with ATGMs.
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Offline elmayerle

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Re: Stridsvagn 103 (S-Tank)
« Reply #8 on: January 08, 2012, 02:07:13 PM »
How about a Strv103 with turret?

How about with a low-slung turret similar to that used on the US T92 experimental light tank?  Use the turret to traverse the gun but keep the existing suspension to elevate the gun.

Offline apophenia

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Re: Stridsvagn 103 (S-Tank)
« Reply #9 on: January 10, 2012, 08:23:05 AM »
Or mount the 120mm gun/autoloader from the UDES-XX-20 onto the Bandkanon VK 155 hull for a back-up for the Strv 2000 program?
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Re: Stridsvagn 103 (S-Tank)
« Reply #10 on: January 10, 2012, 05:39:14 PM »
Or even a Strv103 simply up gunned with a 120 mm gun.
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Offline Jeffry Fontaine

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Re: Stridsvagn 103 (S-Tank)
« Reply #11 on: January 10, 2012, 06:19:08 PM »
Or even a Strv103 simply up gunned with a 120 mm gun.

Better yet, arm it with the 152mm gun/missile launcher from the M551 Sheridan/M60A2.  Missiles and big shells all wrapped up in one small package. 
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Offline Weaver

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Re: Stridsvagn 103 (S-Tank)
« Reply #12 on: January 11, 2012, 01:51:08 AM »
Or even a Strv103 simply up gunned with a 120 mm gun.

Better yet, arm it with the 152mm gun/missile launcher from the M551 Sheridan/M60A2.  Missiles and big shells all wrapped up in one small package.


Errrrr <cough> <cough> ;)
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Re: Stridsvagn 103 (S-Tank)
« Reply #13 on: January 11, 2012, 02:25:16 AM »
It seems great minds think alike...or fools never differ... :)
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Offline apophenia

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Re: Stridsvagn 103 (S-Tank)
« Reply #14 on: January 11, 2012, 06:22:06 AM »
A couple of oldies ...
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Offline apophenia

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Re: Stridsvagn 103 (S-Tank)
« Reply #15 on: January 11, 2012, 06:24:15 AM »
Okay, let's say you're turning that Strv 103 into a turret tank, missile launcher, IFV, whichever. Now, what to do with that upper hull and 105mm L7 gun ...?
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Re: Stridsvagn 103 (S-Tank)
« Reply #16 on: January 11, 2012, 06:40:07 AM »
That's quite a neat take on the MGS and less likely to tip over!

Regards,

John
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Offline Logan Hartke

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Re: Stridsvagn 103 (S-Tank)
« Reply #17 on: January 11, 2012, 06:49:19 AM »
How about an Strv 103 with a 165mm L9 Demolition Gun and PSO/TUSK-style upgrades for the urban environment.  Maybe even slat armor?

Cheers,

Logan

Offline apophenia

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Re: Stridsvagn 103 (S-Tank)
« Reply #18 on: January 11, 2012, 06:54:14 AM »
That's quite a neat take on the MGS and less likely to tip over!

Cheers John. That was my motivation.

It's not that obvious from the image but this vehicle has front and rear pair steering with the two middle pairs 'fixed'. That was for manoeuvrability but also to provide space up front for twin engines (on either side of the 105) driving a combining gearbox.
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Re: Stridsvagn 103 (S-Tank)
« Reply #19 on: January 11, 2012, 04:18:18 PM »
Okay, let's say you're turning that Strv 103 into a turret tank, missile launcher, IFV, whichever. Now, what to do with that upper hull and 105mm L7 gun ...?

I love it!
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Re: Stridsvagn 103 (S-Tank)
« Reply #20 on: January 12, 2012, 02:29:19 AM »
How about a SPH variant similar to the AMX 13 Automouvant Canon de 155:

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Offline Weaver

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Re: Stridsvagn 103 (S-Tank)
« Reply #21 on: January 12, 2012, 05:38:45 AM »
Although it's not obvious, the Bandkanon 1 was effectively the S-Tank SPG, since, although originally based on the never-built KPV tank, it was then adapted to use the Strv-103's power train:

http://en.wikipedia.org/wiki/Bandkanon_1

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Offline apophenia

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Re: Stridsvagn 103 (S-Tank)
« Reply #22 on: January 12, 2012, 05:49:42 AM »
Thanks Weaver, never heard that KPV bit before. Bandkanon 1 was clever but really heavy. The AMX 155 gives no crew protection but it was much lighter and simpler.

Hmmm, how about a Strv 103-based export 'mini-Bandkanon' for the Finns with a 122?
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Offline dy031101

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Re: Stridsvagn 103 (S-Tank)
« Reply #23 on: January 12, 2012, 10:35:55 AM »
A couple of oldies ...

I like the second one- heck if that turret is actually a beefy on the outside but low-footprint on the inside remote weapon station it'd be way cool even though the low-silhouette advantage then risk being defeated.  >:D
« Last Edit: January 12, 2012, 11:14:45 AM by dy031101 »
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Offline apophenia

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Re: Stridsvagn 103 (S-Tank)
« Reply #24 on: January 13, 2012, 09:47:19 AM »
Thanks dy'. But I doubt that the armour on the real deal would be very thick.

That turret is the Bofors study for a remotely-controlled turret with the main gun being a Bushmaster IV (firing 40mm L/70 ammunition). Its not visible in mine but Bofors art shows coax 7.62 (port) and 12.7 (stbd) as well as a 40mm AGL on that Lemur RWS.  It was trialled on a Bradley but I don't have any other details.
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