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Vargr Enclave "One Shot"

For you folks who want a mixed tech grav tank - the low tech solution to the Star Viking (the 'H Beam Piper" Variety) "We'll just take over this TL-7 world with our G-Carrier" rallying cry.

This is a chunk of hardware currently in my PBEM game here:
http://www.guildportal.com/Guild.aspx?GuildID=213934&TabID=1804610

And we're looking for new players as we ramp back up for fall - going on 2 years now starting from Far Trader's "30th Anniversary game"

I'll probably post the Shrike interceptor as well, another mixed tech hybrid which is a TL 12 design built with (mostly) TL-7 components.
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One Shot (Enclave Mobile Fortification)

The name "One Shot" was coined by Republic troops engaging these platforms with helicopter gunships at the battle of Clement's pass. The fortifications had not been deployed before the gunships were in position to engage, so the Vargr were forced to engage the helicopters while in flight. Gunship crews learned quickly that the ungainly vehicles could at best get off a single aimed shot, at which point the recoil of their heavy guns sent them into uncontrolled flight.

Construction is fairly typical for low tech armour in contact with hich tech cultures - there is no point in building a "tank" that can be destroyes by an imported man-portable weapon, or that carries a main gun incapable of engaging battledress armoured troops. As a result, the armour is sufficient to take a direct hit from a man-portable fusion gun and carries a main weapon capable of penetrating the mainline battle armour of the local higher tech polities (in this case both the Imperium and the Zhodani Consulate). The invariable trade-off is mobility, since the mass of armour and weapons support equipment required is considerable.

In truth, this is not actually a homogenous "class" of armoured vehicle due to the construction methods (and radical differences in equipment) that are employed by the Vargr stronghold to construct them. There are four defining components in the construction of the "One Shot" platform:

Lift is provided by a commercial contragrav generator originally used for lifting cargo pallets
Armouring is extensive, sufficient to withstand man-portable energy weapons
The main armament is a turreted heavy calibre slug thrower
Thrust is provided by low tech methods, generally turbofans but propellers and plasma thrusters have bot been observed
While tempting to define this class of vehicle as a "Grav Tank", the tactical doctrine is for these platforms is telling: they are intended to land and act as mobile "pillboxes". This doctrine was re-enforced by the battle of Clement's pass, and underscored the fact that their lateral movement is controlled entirely by (generally unarmoured) thrust nacelles. In "flight" this means that a hit by light weapons will often result in a mission kill. This weakness in design is compounded by the general unmaneuverability of the platform - the weight of the vehicle is offset by the onboard contragrav modules, but the thrust agents must still act to counteract the mass of armour invariably mounted by these vehicles making them slow and sluggish in the best of circumstances, and "floating targets" in a combat environment.

The "One Shot" is a powerful weapons system when deployed in advance of an engagement: the heavy main guns (ranging from a 120mm to upwards of 200mm) and massive frontal and turret armour allow these platforms to take, and dish out an incredible amount of punishment. The (general) lack of weapons stabilization is not an issue when the unit is emplaced, and the ability to place the weapons system in areas that are inaccessable to ground troops makes them very difficult to disable with conventional tactics - flanking these fortifications and waiting for their supplies to run out, or engagement with heavy indirect artillery being the two preferred methods for local units to deal with these fortifications when emplaced. Higher tech units generally employ light armour or anti-armour systems, since a direct hit from a field grade energy weapon will generally destroy one of these units, or massed fire from man-portable energy weapons can raise the internal tempareture enough to "cook off" the carried ammunition.
 
This is a great concept! Plausible, workable, and when used within its design limitations has the potential to swing the outcome of a battle.

Did you base this at all on the Stage 7 portion of Hard Times (Retooling and Rethinking Hardware)?
 
I can't help thinking that there is a discrepancy in the firepower rating in the rules. I haven't read the rules, but from the above I'm assuming that you're using a 120-200mm gun in order to penetrate battledress?

The kinetic energy applied by a 120mm round would be enough to knock a man into the next field. I'm not sure that actual penetration of the suit would be necessary to mission-kill the target.

Thoughts?
 
Gravitic manipulation.

I figure that the BD uses some form of gravitc manipulation to compensate for the hit, possibly slowing it down, since by TL-A gravitics is mature technology and by TL-F it fits in a belt pack. Fanny packs that let you punk Gravity, got to love 'em.

So if I got tech that can build grav-belts and equip my BD equiped forces, yep some form of gravitic manipulation. Oh and one shit hot computer to let them know to "Bounce Now!" and possibly override the user. I mean we have systems now that can track bullets in flight and at the first round, before it even impacts, back track to the firing position. At TL-F you really have to fill the area full of crap to distract the computer and user from the actual attack. From say that 200cm bore slug thrower.

Though given my druthers, I go for Ye Old Anime Missile and its wacky trajectories, but then those are usually TL-9+. At TL-7, you kind of limited. Lots of missiles would work probably. US Navy wargames held when Rumsfeld was SecDef proved that overwhelming an enemy, even the high TL one still works.

Actually looking at this thing again, it sort of reminds me of these really big tanks....starts with a "B". :p
 
I can't help thinking that there is a discrepancy in the firepower rating in the rules. I haven't read the rules, but from the above I'm assuming that you're using a 120-200mm gun in order to penetrate battledress?

I took the term "mainline battle armor" to mean tanks so the design philosophy was to protect the vehicle againt troops with BD and portable fusion/plasma guns and arm them to be capable of defeating enemy tanks. But, as always, I could be misinterpreting.

The kinetic energy applied by a 120mm round would be enough to knock a man into the next field. I'm not sure that actual penetration of the suit would be necessary to mission-kill the target.

I'd agree. Magnus has a point regarding troops with BD and grav belts, but the canon descriptions of BD does not include grav belts as integral. IMTU, standard issue Imperial BD suits and combat armor allow plug-in grav belt connections but not all troops are equipped with the grav belts as cost is always an issue.

In MT, a 12cm KEAP round has a pen of 33 +1 per 3 TLs over 5. This is quite an overkill for troops protected to an armor value of 18 (best possible BD or CBT Armor TL14). I think this supports my interpretation above.

HE penetration for the same 12cm HVEL Gun is 18 +1 per 2 TLs over 5, so I could see the guns used to good effect against troops when necessary using HE, and targeting an area rather than trying to pick off individual troopers.
 
Battledress overkill

One of the issues with using low TL systems against high TL units is that by the time you cram a big enough gun to affect BD armoured troopers (up to AV 20 or so in TNE, so 10 CM RHA equivalent - better than the belt armour of many WW2 cruisers) you don't have room for much else.

a 120 - 200 mm main gun and *no* secondaries allows you to use "exotic" rounds like cluster bomblet munitions to affect *lots* of BD armoured troopers, or a HEAP / HEAT / SEFOP / KEAP round to mission kill "light" high tech armour. With a hyper-velocity gun, flechette rounds have a pretty hideous danger space, and have a chance to penetrate BD.

None of this will do anything against a high tech MBT, but it does stop "opportunistic" mercenary groups from wandering in and affecting regime changes. I was tired of seeing all of the GDW adventures where the "heroes" affect regime change and "turn the tide" with a handful of RAM grenades, gauss weapons and man-portable weapons, and my current PBEM is on a low tech world 1 parsec outside of Imperial Space.

Surely they had figured out a way (short of becoming a client state - which wouldn't fit the campaign plan) to keep from being "invaded" every other week by opportunistic thugs who had just mustered out with a couple of FGMP's and low berth tickets.

As for the inspiration, it's really a variation on a siege dirigible - but using CG to provide the "lift" instead of a "balloon" - this shifts the vulnerability from the "lift agent" to the proplsion system. I had toyed with the idea of a "rock boat" lifted with CG with a spinal mount (this type of thing has been done - broadside cannon and all - in various "magic" and "silly tech" settings) but there are some local materials that made this particularly attractive - imagine a one shot (normal protection ~10-30 cm of hardened steel armour) mounting laminated BCSD instead - this would *not* be a nice surprise for a high tech grav tank, since it would result in two vehicles that basically couldn't affect one another - unless said grav tank didn't have point defence, or the controlling power has imported enough high tech ammunition to equip each tank with a BCSD penetrator round or two for just such a contingency (yet another reason to call it a "one shot")

I'll try to post the "Raptor" and "Shrike" some time soon (Republic aircraft - this is on a low tech balkanized world) which were developed specifically to counter the "one shot" with a bit of off-world assistance...

Scott Martin
 
Funny thing...

Thing is as far as Ache can see and smell, it seems this time one of the locals might be the one instituting regime change, with a hand full of Adventurers. :devil:
 
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