Leopard 2A'5' MUSS Demonstrator: Active Leopard

Active Leopard

DisMUSSing threats

This tank may look like a normal Leopard 2A5 but it is, in fact, sporting a different armour package, presumably from IBD, as well as the MUSS APS. Now there is not much known about the package itself, except the following:

This vehicle may have been a converted leopard 2A4 as is seen from the right turret cheek where there is a cut-out for the classic 2A4 gunner sight. (Also due to the gunner sight missing on the top of the turret). I’ve also noticed that it does not come equipped with gun mantlet armour. So that and the gunner sight are weak spots for the tank.

Now as we can see this supposed Leopard 2A4 has gone through a number of upgrades:

  • Turret armour package
  • MUSS soft kill active protection system
    • IR dazzler system
    • Laser warning/Missile approach warning receivers
    • MUSS special smoke grenade launchers
  • Commander sight upgraded to the PERI sight
  • Smoke grenade count (excluding MUSS grenades) increased to 12 per side, 24 total (excluding MUSS grenades)

2a'5' smokers
2A'5' smokers shown
Screenshot 2025-02-14 000313

The tank is one of the ‘active leopards’ as I like to call them. These were the original and first leopards prototyped with active protection systems. Whether softkill, in case of the MUSS, or hardkill, in case of the AWiSS.

This was a trials prototype made using technologies by EADS (sensors, central computer and ECM) and KMW (system integration), Buk (pyrotechnic countermeasures) and possibly IBD. The MUSS system integration demonstrator was assembled/modified in 2003. The ongoing development of the prototype was carried out within the framework of a technology assessment by the Federal Office of Defence Technology and Procurement (BWB).

During the test phase, the MUSS system was installed on a Leopard 2 tank and successfully defeated many of the various missile threats that were shot at it.
The system is can jam most non-IRCCM missiles and automatically hides the tank behind a multi-spectral cloud of smoke by firing special smoke grenade dischargers if the missile is not defeat-able by the MUSS IRCM.

Description of the MUSS active protection system

MUSS consists of three key components:

(1) Warning sensors using the EADS MILDS missile strike warning ultraviolet sensor and laser detector that identify incoming missiles or laser beams directed at the target vehicle and transmit this information to…

Closeup of MUSS IR detectors which warn the MUSS system about incoming missiles

(2) The central computer of the MUSS system. And subsequently

(3) Electronic or pyrotechnic countermeasures are activated to neutralize and confuse the threat, significantly reducing the likelihood of a successful hit.

image

Special pyrotechnic countermeasure launcher

Operation of the MUSS APS

Depending on the application, MUSS weighs between 60-160kg. Using a combination of 4 sensors, each covering 95°x70° around the vehicle these sensors detect IR/ultraviolet signatures of incoming missiles and/or laser rangefinders. When a threat is detected up to around 3km, the system either decoys the threat via the MUSS IRCM or by directing one of the movable smoke grenade launchers to the direction of the threat and creating a smoke screen.

Additional information

The MUSS warning system is based on a UV/IR missile warning sensor and a laser warning sensor housed in a unit together. This allows easier integration into the turret. The missile warning system detects a variety of anti-tank missiles, including SACLOS, FnF and beam-riding and even unguided RPGs. Since it is based on the MILDS operational MAWS , (originally developed for helicopters and aircraft) MUSS has been able to prove its effectiveness against a variety of threats in extensive trials, including on the Leopard 2 MBT.

The German Bundeswehr already use the MUSS to in the self-defence suite of the Puma IFV.

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Technical Specifications

Mobility

Maximum Speed: 68kmph forwards, 31kmph reverse
Weight: 57-58t (Leo 2A4 standard + 160kg (MUSS) + ~200-500kg (applique))
Engine power: 1500hp
Power/weight: 25.86hp/t
Transmission: Renk HSWL 354
Suspension: Torsion Bar

Primary Armament: 120mm cannon (42 rounds, 15 rounds First order)
Vertical traverse: -9/+20° (Rate = 40°/s)
Horizontal traverse: 360° (Rate = 40°/s)
Co-Axial: 7.62mm MG (4600 rounds)
Increase to total height: ~750mm?

Gunner sight: 4x to 12x zoom
Commander sight: 2x to 8x zoom
NVD: Yes
TVD: Yes?

Active protection system: Yes (Soft-kill)
APS (Countermeasure) charges: 4 left, 4 right (reloads may be carried in hull storage)
Maximum threat detection distance: 3km
Standard engagement distance: 3km (distance at which the Soft kill APS engages the threat) (If MUSS cannot softkill the threat, it launches smoke to hide the vehicle)
System reaction time: Unknown
Launcher traverse rate: Unknown
Countermeasure: MUSS™ Multi-spectral Smoke grenade
Counterable Threats: ATGMs, AGMs

Extra info here

Fun fact, the Hull of the Leopard 2A5 MUSS (Y 591-356) was later paired with the turret of the Leopard 2AV AWiSS (T-21/D) at Henning-von-Tresckow barracks in Oldenburg, the headquarters of the 1st Panzer Division.

In fact, MUSS and AWiSS are even more related than previously known:

Sources
  • EADS

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From Janes Armour and Artillery 2005-6

Defense-update

Army-guide

below the turret ring

Would you like to see the Leopard 2 MUSS Demonstrator in game?
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12 Likes

The FINAL active leopard!!!
Yaaaaaaas
It here to rulleeee

Nice post! A definite add. I was going to say maybe as an event vehicle but considering that there really isn’t any German Leopard 2’s with Soft-kill APS, it should be in the research tree foldered with the Leopard 2A5. Anyways +1

3 Likes

Before or after the Leopard 2A6?

Neither.
It should be in the demonstrator line (leopard 2k) in a folder with leopard 2 pso

+1 in a folder

1 Like
1 Like

ok so after modelling this bad boy, i finally realised why this leopard seems to lack so many commonalities with both the 2A4 and 2A5.

The leopard 2A5s we see in real were not new builds. they were not fresh out of the factory. In fact, none of them were. They were all converted from the pre-exising Leopard 2A4 batches. internal armour mixes were upgraded and wedge spaced armour was added to the turret fronts.
one thing is important to note that the 2A4 mantlet and 2A4 mantlet are not the same… kinda
2A5 has a much thinner mantlet. but how it works is that the 2A4s mantlet was cut down into 3 parts vertically.
the middle section went onto become the 2A5 mantlet and the other 2 side peices were bolted and or welded to the turret.
the MUSS demonstrator shows one such turret i like to call a leopard 2A4+ turret. the commander cupola, CITV have been upgraded to the 2A5 standard, however the WBG-X gunners TVD and the mantlet have not been changed as of the time the MUSS TD was photographed. hence we can see both the old 2A4 turret carry hook latches as well as some 2A5 ones.

the wedge armour is also not o the 2A5 standard, being a seemingly unique version made by IBD, its smoother, has different mounting bolts on the sides (or lacks them entirely) as well as the right cheek armour having a cutout to accomodate the, as of yet, not raised WBG-X TVD.

the smoke grenade launchers are custom made for this specific vehicle sporting 12+12 smoke grenade launcher (24 total) of which, according to display, 2+2 can be mounted with the special MUSS grenades. although the launchers are all of the same type and wirings are also the same, meaning the MUSS TD can carry 24 MUSS grenades OR 24 normal smoke grenades.

otherwise you can easily spot the LWS, MAWS and DIRCM package on the turret.

hope to see this guy in game soon