The Mortar Company.

120 MM SYSTEMM12 | 120 MM MORTAR

ADVANCED AUSTRIAN DESIGN FOR HIGHEST FIREPOWER ANDMAXIMUM RELIABILITY

Hirtenberger Defence Europe GmbHLeobersdorfer Strasse 31-332552 Hirtenberg / AustriaPhone: +43 2256 811 84-0Fax: +43 2256 818 07E-Mail: sales.hds@hirtenberger.com

Hirtenberger Defence International Ltd.Craydown Lane / Middle WallopStockbridge SO20 8DX / United KingdomE-Mail: sales.hds@hirtenberger.com

hds.hirtenberger.com

Vol. 11 / 2017 | subject to change

FIRE CONTROL SYSTEMTHE COMPREHENSIVE 120 MM SYSTEMDeveloped by Hirtenberger Defence Systems (HDS), the tough and dependable M12 120 mm weapon system comprises a

120 mm long-range weapon available in different barrel lengths, a family of ammunition, auxiliary field equipment, sighting

systems and a fully digital fire-control system containing all ballistic data. The M12 can achieve a range of up to 8 500 metres,

ensuring maximum firepower and reliability in challenging conditions. The system is quick to deploy and easy to operate and

can be mounted on a specialised transport solution provided by HDS. The precise engineering and carefully coordinated

development of the M12 facilitates high degrees of effectiveness in the most extreme environments, enabling optimal perfor-

mance – and safety – all times. HDS ammunition is made to the highest quality and safety standards, and includes high-ex-

plosive, smoke variants (white phosphorous, red phosphorous and titanium tetrachloride), visible and infrared illumination, as

well as training ammunition.

The bipod carries the barrel clamp, shock absorbers, damper rings, traver-sing, elevating, and cross levelling ge-ars and the bipod legs with spikes and cross struts. The buffer springs are made of stainless steel, the damper rings of rubber. All gears are made of stainless steel and protected againstwater and dust.

The A06 Mortar Sight is mechanical aiming device a was developed for indirect aiming of mortar in azimuth and elevation with precise elevation and azimuth adjustment by worm gear. The optic has a magnification of 2.6x and a field of view of 9 °; a crosshair reticle and its dovetail mounting is according to NATO standard. The complete telescope, with 2.6x magnification, can be tilted +/- 25 ° and rolled axially 90 °, ensuring convenient operation, particularly with different types of mortars. For night operations, the A06 is equipped with an LED electrical illumination system powered by two standard batteries 1.5 V (type AA), providing illumination of the scales, bubbles and reticle.

BIPOD

SIGHTING UNITDesigned for highest stability on all kinds of terrain and ground, it is made of welded steel and has six ribs and vents to ensure the desired result.

The barrel is made of high-strength ESR special steel. It is forged, heat-treated and machined to close tolerances. The forged breech plug is screwed into the barrel. A specially developed sealing ring guarantees gas-tightness. The firing mechanism can be switched from fixed to triggered firing. A safety lever is provided on the breech to avoid inadvertent firing. The breech ball fits into a socket in the centre of the base plate, where it is fixed by a bayonet nut.

BASE PLATE

BARREL AND BREECH CAP

120 MMPRACTISE

Mk2HE Mk2

SMK-WPMk2

SMK-TTCMk2

SMK-RPMk3

ILL-VISMk3

ILL-IRMk3

Lenght 753 mm 753 mm 753 mm 753 mm 841 mm 841 mm 841 mm

Weight 14.6 kg 14.6 kg 14.6 kg 14.6 kg 14.8 kg 14.8 kg 14.8 kg

120 MM MORTAR AMMUNITION

PYROTECHNIC AMMUNITION WITH IDENTICAL BALLISTICS

FillerRed phosphorusTerminal effect Smoke generation time: 140 sec.

Terminal effectIllumination duration: 50 sec.High infrared emission,low visible emissionDescent rate: 5 m / s

120 MM SMK-RP Mk3

120 MM ILL-IR Mk3

Terminal effectLuminosity: > 1 200 000 cdIllumination duration: 50 sec.Descent rate: 5 m / s

120 MM ILL-VIS Mk3

HE Mk2 / PRACTICE Mk2 SMK-WP Mk2 / SMK-TTC Mk2

MAX. RANGE WITH 1 535 MM BARREL

GAS PRESSURE MAX.

Charge 1Charge 8Charge 9

1 700 m8 500 m9 000 m

15 MPa150 MPa190 MPa

ILL-VIS Mk2 / ILL-IR Mk2 / SMK-RP Mk2 EJECTION HEIGHT 350 M

Charge 1Charge 7

1 100 m7 400 m

15 MPa120 MPa

• Waterproof design by impregnation • Stable ballistics • Improved storage capability • Reliable function in wet environment• Modern composition of propellant • Higher energy content • Higher muzzle velocity • Reduced gas pressure • Higher ranges

• Optimised aerodynamic shape • Improved external ballistics • Increased range• Body material • Special cast iron • High number of fragments • Increased combat efficiency

• No corrosion• No break-up during firing• Weapon cannot be damaged• Improved storage capability

• Watertight aluminium design • Stable ballistics • Improved storage capability • Reliable function in wet environment

SHELL BODY

DESIGN OF FIN TAIL

IGNITION CARTRIDGE

PROPULSION SYSTEMS

AMMUNITION WITH „HE“ TYPE BALLISTICS

FillerInertTerminal effectImpact signature(only with life fuze).

Qualified in NATO FillerTNTTerminal effectNumber of fragments > 13 000 (> 2 300 fragments with m > 0.56 g).

Terminal effectIncreased lethality by more than 60 %Number of Fragments 10 540 (3 929 fragments with m > 0.56 g).

Qualified in NATO FillerTNTTerminal effectNumber of fragments > 13 000 (> 2 300 fragments with m > 0.56 g).

FillerWhite phosphorusTerminal effectScreening by fast generation of smoke.

FillerTitanium tetrachlorideTerminal effectExtraordinary fast generation of cold smoke.

120 MM PRACTICE Mk2

120 MM HE-TNT Mk2

120 MM HE CONFRAG® Mk3

120 MM HE-TNT Mk2

120 MM SMK-WP Mk2

120 MM SMK-TTC Mk2

• Bomb removal tool

SPECIAL

• Observer Locations • Firing planning function• Variable correction option• Simultaniuse fire mission

• Control multiple weapons • Ammunition stores• Surveys calculation options• Firing planning functions

• Internal GPS• Long Battery • Ruggadised• Touch screen

ROLE: FORWARD OBSERVER COMPUTER

ROLE: MORTAR COMPUTER

FEATURES: MILITARY HANDHELD COMPUTER

Weapon Position Data Weapon Aiming Data Integrated Mapping Satellite ViewMain Menu

Variouse availible fuzes Spindle shaped design

Canister shaped design *with Hirtenberger HE Mk2Due to continuous technical improvement this product is subject to modification

TECHNICAL DATA M12 – 1 385 M12 – 1 535

CalibreMax. range*Max. rate of fireMax. operating gas pressure

120 mm8 100 m15 / min

190 MPa

120 mm9 000 m15 / min

190 MPa

Weights

Total weight with trailerTotal weight in firing positionBarrelBipodBase plate

approx. 637 kg 252 kg82 kg50 kg

120 kg

approx. 750 kg265 kg95 kg50 kg

120 kg

Dimensions

Length of barrel (overall)Ballistic lengthDiameter of base plateLength of carriageWidth of carriage

1 750 mm 1 385 mm1 100 mm3 700 mm1 780 mm

1 900 mm1 535 mm1 100 mm3 700 mm1 780 mmTrailer: The advanced design of the

trailer allows to bring the ready as-sembled mortar into the firing position within 45 sec.