BSTT Chimera

     Country or Origin: Britain

     Seen in: a 1984 proposal by the British School of Tank Technology to prolong the lifetime of the Chieftain MBT.  It was a drawing-board proposal that got very close to being built, but in the end only subscale conceptual models were built.

     Notes: The Chimera (never type-standardized) was the result of work which would have been done to extend the lifetime of the Chieftain chassis (the Chieftain turret was always the problem, and the BSTT never had access to full-scale turrets).  The idea then became a design for a vehicle with a casemated main gun, looking very similar to a German Jagdpanzer Kanone.. The result was to be an effective tank destroyer/assault gun, but lighter and cheaper than either a Chieftain or the Challenger 1 that was about to appear in British Army units.

     The Chimera was to have the standard L11 120mm rifled gun; because much internal space was freed up by not using a turret, a relatively large amount of ammunition could be carried – both machinegun and main gun rounds. (A version of the Chimera with an XL30 120mm cannon, which is slightly longer and designed to fire more powerful ammo, though it could still fire conventional L11 rounds. The Chimera has an L7A2 coaxial machinegun and the commander, in a manually-rotating cupola with all-around vision blocks, and also an early form of a OHWS, mounting an M2HB, and fully capable of being aimed, fired, and reloaded from under armor.  The commander has an aiming reticle because the L7A2 in front of the cupola can be aimed and fired with the commander under armor, and the main gun can be fired by the commander if necessary.  The main gun and coaxial, due to the unturreted design, have a limited traverse of 5 degrees in either direction and to the top and down; the coaxial can manage 10 degrees back and forth and 5 degrees up and down.  Like all such designs, further gun movement is done by pivot steering its tracks.

     The Chieftain hull is lengthened by one roadwheel, in order to allow the recoil stroke of its main gun in its new, lower position.  The two front roadwheels are of steel instead of aluminum, as the design of the Chimera places much more stress on those front roadwheels. The profile is of course low, and the Chimera would have done well in a hull-down position.  Armor was also heavily increased over the glacis and hull front, including the use of the then-new Chobham armor. The hull side armor was thick spaced RHA on the top hull side, and somewhat lighter on the lower hull side.  This side armor also had a moderate sloping design. The Chimera would have sported a comprehensive fire control system for the time, including a laser rangefinder, ballistic computer, and a night vision suite normally found on the best British tanks. In addition, the Chimera was operated using inertial navigation, with a special mapping unit that contains the maps which would be needed for the most optimistic 48-hour outlook.

     The power was provided by a late model L60 multifuel engine, most likely to have been the 12A/N model, giving the Chimera 750 horsepower. An alternate engine mounting was a 1200-horsepower version of the one being fitted into the Challenger 1. There was also talk of using the full-power version of the L60, which would have given the Chimera 1500 horsepower.  In addition, the Chimera was to have a 10kW APU for silent watches.

     The Chimera was to have a crew of four, driver, commander, gunner, and loader. Their positions are essentially the same as they would have been on the Chieftain – driver on the front right, commander and loader’s hatches on the right and left  orf the rear of the casemate, and the gunner, whose normal station is to the right of the gun, uses the loader’s hatch.  Though the commander’s hatch was equipped with an OHWS, there was a relatively smallish hatch for the commander to squeeze through

     In the end, MoD and Army tank experts examined all of the models, draft drawings, and documents related to the Chimera.  Though they determined that the Chimera would be highly effective in a European war, the work on the Chimera came to naught, and they were filed away in one of the BSTT warehouses. Ironically, the whole idea had been thought of in 1972, and one prototype was actually built before the design program was shelved.

     Maintenance tools, extra track sections and roadwheels, a first aid kit, and a ration/water heater completed the equipment of the Chimera.

 

     Twilight 2000 Notes: The Chimera and British tankers had sort of a love affair with the Chimera, as they were surprisingly effective at taking out armor and smashing fortifications, while also having an excellent survivability credit.  Some Chimera crews took to calling their vehicle the Goliath, or, seeing the resemblance to the Jagdpanzer Kanone, christened it with the name “JagdChieftain.”

Vehicle

Price

Fuel Type

Load

Veh Wt

Crew

Mnt

Night Vision

Radiological

Chimera (750hp Engine)

$576,265

D, G, AvG, A

694 kg

57.89 tons

4

43

Passive IR (D), Image Intensification (G, C), Thermal Imaging (G, C)

Shielded

Chimera (1200hp Engine)

$587,041

D, G, AvG, A

714 kg

57.89 tons

4

43

Passive IR (D), Image Intensification (G, C), Thermal Imaging (G, C)

Shielded

Chimera (1500 hp Engine)

$588,462

D, G, AvG, A

727 kg

57.89 tons

4

43

Passive IR (D), Image Intensification (G, C), Thermal Imaging (G, C)

Shielded

 

Vehicle

Tr Mov

Com Mov

Fuel Cap

Fuel Cons

Config

Susp

Armor

Chimera (750hp Engine)

115/80

32/22

950

278

Stnd

T6

HF90Cp  HS27Sp  HR10

Chimera (1200hp Engine)

159/111

44/31

950

446

Stnd

T6

HF90Cp  HS27Sp  HR10

Chimera (1500 hp Engine)

188/132

52/37

950

558

Stnd

T6

HF90Cp  HS27Sp  HR10

 

Vehicle

Fire Control

Stabilization

Armament

Ammunition

Chimera

+3

Basic

120mm L11 Rifled Gun, L7A2, M2HB (OHWS)

70x120mm, 600x.50, 9000x7.62mm

 

Hagglunds Ikv-93

     Country of Origin: Sweden

     Notes: The Ikv-93 is a version of the Ikv-91 armed with a 105mm gun, produced only as an experiment to increase the Ikv-91's firepower and allow it to continue on in its role as a tank destroyer. It was decided that a new vehicle was needed instead and the Ikv-93 project shelved.  The commander, loader, and gunner exit through hatches in the turret deck, while the driver has a hatch on the deck on the front left side. The commander and gunner have periscopes that are the equivalent of binoculars as well as night vision devices. Like the Ikv-91, the Ikv-93 is designed for operations in northern Sweden, and is sure-footed on difficult terrain. The engine has a preheater to ensure that it starts in cold weather. The commander can control the gun as well as the gunner, but the commander has no access to the fire control computer, and his shots are at +2 at best.

     Twilight 2000 Notes: A number of conversions from Ikv-91s were made to the Ikv-93 standard before the Twilight War; some more were made afterwards, and there was even a tiny amount produced as new vehicles.  About 50 were available for the Twilight War.

     Merc 2000 Notes: The Ikv-93 was never produced in any large numbers.

Price

Fuel Type

Load

Veh Wt

Crew

Mnt

Night Vision

Radiological

$193,201

D, A

600 kg

16.2 tons

4

14

Active/Passive IR

Shielded

 

Tr Mov

Com Mov

Fuel Cap

Fuel Cons

Config

Susp

Armor

131/92

31/21/3

400

114

Trtd

T4

TF8 TS7 TR6 HF10 HS6 HR4

 

Fire Control

Stabilization

Armament

Ammunition

+3

Fair

105mm L-7 gun, Ksp m/39, Ksp m/39 (C)

39x105mm, 4250x7.62mm

 

Hagglunds Ikv-2000

     Country of Origin: Sweden

     Notes: This vehicle was never developed beyond several reduced-scale models in real life.

     Twilight 2000 Notes: This odd-looking vehicle was designed before the Twilight War to produce a capable tank destroyer that could be used on deep snow and rough terrain of the northern reaches of Sweden and in the mountains. It is based on the chassis of the Bv-206 all-terrain vehicle, much upgraded with armor, night vision, and a 120mm stabilized gun. The gun and crew are carried in the front section, while the ammunition is carried in the rear, connected to the gun by a conduit. This is a very rare vehicle, which began production only in mid-1997.

Price

Fuel Type

Load

Veh Wt

Crew

Mnt

Night Vision

Radiological

$297,804

D, A

500 kg

25 tons

3

20

Thermal Imaging, Passive IR

Shielded

 

Tr Mov

Com Mov

Fuel Cap

Fuel Cons

Config

Susp

Armor

156/104

36/26

680

213

CiH

T4

TF19Cp TS12 TR8 HF24Cp HS10Sp HR6

 

Fire Control

Stabilization

Armament

Ammunition

+3

Fair

120mm Rheinmetal gun, Ksp m/39

36x120mm, 2400x7.62mm

 

Henschel Jagdpanzer-105/120/122 Kanone

     Country of Origin: Germany

     Notes: These variants of the Jagdpanzer Kanone are entirely fictional: they are the idea of Jim Lawrie (known to most T2Kers as ChalkLine).  I will admit to having changed the back-story somewhat, as well as some of the stats (hopefully that's OK with Jim).

     Twilight 2000 Notes: While the Jagdpanzer-90 acquitted itself well during the Twilight War as an infantry support vehicle, it quickly became apparent even before hostilities started that its 90mm gun lacked the punch to allow it to be the tank destroyer it was designed to be so long ago.  Therefore, shortly before the war a limited number of Jagdpanzer-90s were upgraded with more modern 105mm guns.  They retained the laser rangefinders, ballistic computers, night vision, and flare and smoke generation launchers of the Jagdpanzer 90s, as well as some being equipped with the optional white light/IR searchlight.  Conversions began in the mid-1980s at a slow rate, but this conversion rate quickened dramatically when the war began in earnest.  Unlike the Jagdpanzer-90, the Jagdpanzer-105 (and later versions with heavier armament) were used only by Germany.

     While the Twilight War was going on, some of the older Jagdpanzer 90s were upgraded by replacing their main guns with 120mm guns, and called the Jagdpanzer-120. These vehicles entered service in late 1997 and gave a good accounting of themselves in combat.

The Jagdpanzer-122 is an assault gun based on the Jagdpanzer 90 chassis. These were made during the war by replacing the 90mm gun with a 122mm D-30 Howitzer, which the Germans had from former East German stocks. These vehicles were used for fire support when assaulting fortified positions and were not generally used in the antitank role, unlike other Jagdpanzer vehicles.

Vehicle

Price

Fuel Type

Load

Veh Wt

Crew

Mnt

Night Vision

Radiological

Jagdpanzer-105

$213,087

D, G, AvG, A

500 kg

27.8 tons

4

20

Passive IR, WL/IR Searchlight (Optional)

Shielded

Jagdpanzer-120

$224,262

D, G, AvG, A

500 kg

28 tons

4

20

Passive IR, WL/IR Searchlight (Optional)

Shielded

Jagdpanzer-122

$227,478

D, G, AvG, A

500 kg

28.1 tons

4

20

Passive IR, WL/IR Searchlight (Optional)

Shielded

 

Vehicle

Tr Mov

Com Mov

Fuel Cap

Fuel Cons

Config

Susp

Armor

Jagdpanzer-105

125/87

29/21

470

185

Stnd

T6

HF27 HS13 HR10

Jagdpanzer-120/122

124/87

28/20

470

185

Stnd

T6

HF27 HS13 HR10

 

Vehicle

Fire Control

Stabilization

Armament

Ammunition

Jagdpanzer-105

+4

Fair

105mm M-68 Gun, MG-3, MG-3 (C)

44x105mm, 4000x7.62mm

Jagdpanzer-120

+4

Fair

120mm Rheinmetall Gun, MG-3, MG-3 (C)

38x120mm, 4000x7.62mm

Jagdpanzer-122

+3

Fair

122mm D-30 Howitzer, MG-3, MG-3 (C)

38x122mm, 4000x7.62mm

 

Henschel Marder-105

     Country of Origin: Germany

     Notes: The Marder-105 is the result of an experimental tank destroyer program of the 1980s. They were never actually produced beyond the prototype stage.

     Twilight 2000 Notes: When deliveries of the Vextra 105 from France stopped due to the hostilities between the two countries, the Germans were in need of another light vehicle to take the Vextra 105s place. To that end, they mounted a casemated 105mm gun, mounted in a turret with reasonably heavy armor. These vehicles first went into action against Polish troops in late 1997, and gave a good accounting of themselves. Through a combination of good luck and camouflage, the factory producing these vehicles was not destroyed until nearly New Years of 2000, and thus numbers of this vehicle were surprisingly high, surpassing the numbers of Vextra 105s in German service. They gave a good accounting themselves in combat, especially when fighting from hull down positions.

Price

Fuel Type

Load

Veh Wt

Crew

Mnt

Night Vision

Radiological

$342,250

D, A

800 kg

29 tons

3

24

Thermal Imaging, Passive IR

Shielded

 

Tr Mov

Com Mov

Fuel Cap

Fuel Cons

Config

Susp

Armor

133/93

31/23

650

203

CiH

T4

TF11Cp TS7 TR6 HF27 HS12 HR8

 

Fire Control

Stabilization

Armament

Ammunition

+4

Good

105mm L-7 gun, MG-3

36x105mm, 2400x7.62mm