The 'Husky' is a unique landmine detection vehicle by pengxuezhi

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									The ‘Husky’ is a unique landmine detection vehicle that is blast survivable, over-
pass capable and field reparable. This exceptional vehicle has been combat proven
in conflict situations around the world since the early 1980’s.
Ongoing operations in Afghanistan and Iraq         In a classic route clearance operation the      With the increasing length of route clear-
have expanded the Husky’s role beyond de-          MDV sweeps the route ahead of the T/MDV         ance missions, and the fact that the vehicle
tecting and marking landmines to include the       towing the MDT’s, travelling at between 15      is operated by a single occupant we indenti-
detection of Improvised Explosive Devices          and 50 km/h depending on the nature of the      fied the need for a vehicle that can carry two
(IED’s) and Explosive Formed Penetrators           terrain. Integral detectors signal the pres-    occupants as this would allow the tasks to
(EFP’s) as well.                                   ence of a landmine, IED or EFP as the vehicle   be split between a driver and an operator of
                                                   drives over its location.                       the detection equipment. This maximizes the
The system, a commercial product suitable                                                          advantage of having humans in the vehicle.
for use in harsh environments, facilitates fast    Once a suspected target has been detected
and efficient route clearance creating safe        the MDV marks its location and moves for-
passage for military and civilian personnel        ward to clear the way for the disposal team
and vehicles.                                      to investigate the source of the signal and
                                                   clear the detected target. The T/MDV-MDT
What makes the Husky unique, especially            combination follows behind the MDV and
when compared to other mine detection              acts as a proofing system. Targets unable
systems is its ability to pass over pressure       to be detected by the vehicles sensors are
fused anti-vehicle landmines without               exploded by the trailing MDT.
detonating them. And in the event of a
detonation, the components have been               The system clears a path 3 m wide.
engineered in a unique modular configura-
tion and will break apart in a predictable         In the event that the MDT detonates a land-
fashion. This facilitates fast in-field repairs,   mine, the trailers can be released pneumati-
and any damage to the system can usually           cally from the cab of the T/MDV, which then
be repaired in the field increasing the uptime     drives clear of the blast area to allow the
and system durability.                             back-up crews to check for other devices, and
                                                   effect repairs to the damaged trailer.
The Vehicle Mounted Mine Detection
(VMMD) system comprises two Husky                  The VMMD systems in service worldwide
vehicles. One will act as a Mine Detection         have collectively been subjected to thou-
Vehicle (MDV), while the second fulfils the        sands of landmines, IED or EFP strikes.
role of a towing/mine detection vehicle
(T/MDV). The T/MDV tows the set of three           Having an operator in the loop provides
‘Duisendpoot’ Mine Detonation Trailers             a huge advantage during route clearance
(MDT’s). The system comes complete with            operations, as an experienced operator often
one set of spare wheel modules, which              identifies the location of explosive devices
includes tools and other parts grouped to-         and merely uses the sensors at his disposal
gether in a towable kit known as a Redpack.        to confirm or refute the presence of these.
Husky vehicles are no longer fitted merely with a simple metal detection system.
More sophisticated high sensitivity low metal content detectors, and alternative
sensors like Ground Penetrating Radar have now been operationalized and are
being fitted to the vehicles along with other devices such as the cyclone blower
and robotic arms.
                                                         •	 Side windows angled outward reducing
                                                            glare and reflections thereby enhancing
                                                            visibility.
                                                         •	 Large wipers and washers on all
                                                            windows.
                                                         •	 Windscreens used as side windows
                                                            maximizing visibility to the sides.
                                                         •	 Consolidation of pneumatics behind cab
                                                            on sub-frame with door access.
                                                         •	 Footwell is full width of hull and raised 40
                                                            mm minimizing impact of reduced access
                                                            through the transmission access door.
                                                         •	 Roof accommodates smaller hatch with
This has prompted a natural evolution with                  lighter load.
the design a two (2) operator derivative of              •	 Windscreen fixing provides ‘quick release’
the current MK III Husky. The two operator                  emergency escape route.
vehicle will be known as Husky 2G (second
generation) having the same protection,                  •	 Electrical control panel no longer situated
survivability, frangibility, repairability and              on left side and dashboard incorporates
similar mobility characteristics of the Husky.              gauges presently on the window pillar.
The Husky 2G is now available commercially               •	 Air conditioning system and AFES
worldwide. The majority of features of the                  modified and upgraded in the cab.
current MK III vehicle as well as the major
sub-systems and components, as well as                  Dimensions of the cab will generally be as
the containerised packing system have been              follows:
retained.

The following are retained from the MK III               Width at seat level                  950 mm
Husky:
                                                         Width at shoulder level            1 200 mm
 •	 Front and rear modules, drive train
    (engine, transmission, transfer case and             Width at roof level                1 400 mm
    drive shafts) ensuring current 4 wheel
    steering capability and turning circle.
                                                         Seat back to instrument              750 mm
 •	 Lower hull length and ‘V’ angle                      panel is still
 •	 Grilles and engine and transmission                  Seat front to pedals is still        700 mm
    access doors
                                                         Volume of single cab               800 liters
 •	 Fuel system                                          (excluding pneumatics)                (approx)

The major change is the increase in cab area             Volume of double cab              1 300 liters
with the following changes:                                                                    (approx)

 •	 Reduction in the cross sectional area of
                                                        It is presently estimated that the mass of the
    the cab.
                                                        vehicle will increase by 400 kg.
 •	 Solid 6 mm Armox wall behind crew from
    one side to the other incorporates rails for
    mounting back rests.
 •	 Bolt on ceramic tile armor.
 •	 Cut out in side plate from rear of seat to
    firewall at floor level (not footwell level).
 •	 Windscreen plate is more vertical
    increasing space and improving visibility.
 •	 Two side windows used as windscreens
    improving the forward facing area.
Detection System Developments
Remote Search Head Lifting Mechanism

The height of the search heads on the current
production vehicles can only be adjusted
outside the vehicle and requires two people
to do this task. Operators are faced with a
compromise of sensitivity versus terrain ma-
noeuvrability, which needs to be determined
before embarking on a mission. The newly
developed Search Head Lifting Mechanism
allows the operator to adjust the height of
the search heads from inside the cab. Electric
actuators control the tilt and lift, and the
operator can select four heights, ranging
from 450 mm to 150 mm above the ground.
The modular design of the system facilitates
simple implementation on vehicles, and
existing vehicles can easily be upgraded.

Visual Pin-Point Indicator (VPPI)                 Hi-Sense Pulse Induction Metal Detection System
& Inclinometer
                                                  Operators in the field are faced with constant change of the threat, typically with reduced
The core function of the VPPI System is to        metal and deeper targets. The standard Vehicle Mounted Mine Detection (VMMD) system
visually display the density of metal that        was designed to detect large metal cased mines predominantly. The objective of the Hi-Sense
the PI control box detects on each side of        System was to improve the sensitivity to be able to detect small metal targets or deeply
the vehicle. This is to assist the operator in    buried metal targets. This was achieved by inducing more energy into the terrain and improv-
visually confirming the stereo signal received    ing on the signal-to-noise ratio of the reflected wave. The most up-to-date technology was
through the headset. The number of LED’s          implemented in the Search Head and the PI control box. The digital filtering was improved,
that illuminate increases as larger targets       enabling the system to be used more effectively with the alternator on. The speed of the ve-
are encountered, The secondary function of        hicle was used to improve the size discrimination in the LOC1 mode. The overall performance
displaying the “Pitch and Roll” of the vehicle    of the new Hi-Sense System is approximately 30% more effective than the current Pulse
was added to be able to utilise the space that    Induction System.
was previously occupied by the Inclinometer.
                                                   •	 Improved sensitivity by increasing the electro-magnetic field strength
                                                   •	 Improved LOC1 size discrimination with vehicle speed input
                                                   •	 LOC1 double target recognition
                                                   •	 Improved alternator noise immunity
                                                   •	 No test coil improves signal to noise ratio (SNR)


                                                                Old Analogue System IVMMD        Current DSP System VMMD       New HI-SENSE DSP System
                                                                           MKI                          MKII & MKIII
                                                   Target       Small    Medium     Large        Small   Medium    Large       Small        Medium   Large

                                                   Hi            150       300      450          180       350      450         230          450      650

                                                   Med             -       200      400            -       250      400         200          350      500

                                                   Low             -        -       350            -       150      350          -           200      400

Visual Training Aid
                                                   Medium Target         Current DSP System VMMD MKII & MKIII              New HI-SENSE DSP System
The Visual Training Aid was designed to            (350 mm)
display the status of the PI control system on
                                                   Speed km/h                   8           16           24           8                16            24
the outside of the vehicle. The system is
usually mounted on the rear of the vehicle         Hi                           √           √             √           √                √             √
and has three LED lights – a green that indi-      Med                          √           X             X           √                √             √
cates the Ready Status and a left and right
red LED that indicate a trigger. Units are also    Lo                           X           X             X           √                √             √
fitted with a speaker that varies in frequency
when metal content increases providing            The marking nozzles have also been integrated into the detector heads thereby simplifying
audio confirmation of the detection.              the maintenance and increasing the reliability of the marking system.
Tire Developments
New Overpass Tire

Due to the increased mass of the vehicle and a desire to retain the overpass characteristics, a new 550 mm wide overpass tire has been
developed that allows us to achieve 12.5 psi mean ground pressure, with an increased wheel load.




                                                                              Husky 450/80 R20 overpass tire footprint at 0.6 bar - 9 psi


New MDT Tire

RSD conducted tests on two different tires at the CSIR (Council for Scientific and Industrial Research) that could replace the existing MDT tires.




                                                                              385/65 R22.5 radial tire footprint at 3 bar - 44 psi


Initial tests indicate that a 385/65 R22.5 radial tire inflated to 3 to 3.5 bar/ 44 to 51 psi exerts consistent increased pressure over the 3 m wide
proofing path, thereby ensuring no pressure fused mines can be missed by the MDT.
Vehicle Specifications
Dimensions                                      Husky MKIII                                       Husky 2G

Length                                          7 340 mm                                          7 340 mm
Width                                           2 530 mm                                          2 530 mm

Height

To Top of Roof Closed                           3 142 mm                                          3 217 mm
To Top of Roof Open                             3 540 mm                                          3 558 mm
Wheel Base                                      5 230 mm                                          5 230 mm
Ground Clearance
Under Hull                                      590 mm                                            590 mm
Under Axle Differential (Search heads raised)   360 mm                                            415 mm
Tow Pintle Height                               925 mm                                            925 mm
Angle of Approach                               50°                                               50°
Angle of Departure                              43°                                               43°
Side Slope                                      22°                                               18°

Mass

Kerb Mass (Including fuel and lubricants)       8 350 kg                                          8 800 kg
Operating Weight                                8 700 kg                                          9 200 kg
Gross Vehicle Weight Rating                     30 800 kg (including MDT's)                       12 000 kg (no MDT's)

Crew

Driver/Operator                                 Single occupant                                   Driver and Operator

Protection Levels

Blast Protection                                STANAG 4059 (level 3), AEP 55 Spec                STANAG 4059 (level 3), AEP 55 Spec
IED Protection                                  50 kg at 5 meters                                 50 kg at 5 meters
Ballistic Protection                            9 mm ceramic tiles glued to 6 mm                  9 mm ceramic tiles bolted to 6 mm
                                                ARMOX 500T hull                                   ARMOX 500T hull
                                                Interior spall liners (optional extra)            Interior spall liners (optional extra)
                                                96 mm armored glass (white or green)              96 mm armored glass (white or green)

Performance (Using JP-8 Fuel)

Maximum Road Speed
0% Grade                                        72 km/h (governed)                                72 km/h (governed) 95 km/h (ungoverned)
20% Grade                                       5 km/h (pulling MDT's)                            17 km/h
60% Grade                                       7.0 km/h                                          5.0 km/h
70% Grade                                       5.3 km/h                                          3.8 km/h
Maximum Detection Speed                         50 km/h                                           50 km/h
Maximum Speed Pulling MDT's                     15 km/h                                           n/a
Acceleration
0 - 50 km/h 0% Grade                            16 seconds (37.2 with MDT's)                      22.9 seconds (no MDT's)
0 - 15 km/h 0% Grade                            1.8 seconds (4.8 with MDT's)                      2.2 seconds (no MDT's)
Turning Circle (Kerb to kerb including MDT's)   18 meters                                         18 meters

Range

Hours (Continuous)                              Limited by operator fatigue                       Limited by driver and operator fatigue
Distance (Husky)                                800 km                                            750 km
Distance (With MDT's)                           500 km                                            n/a
Fuel Tank                                       150 liters                                        150 liters

Engine

Make                                            Mercedes Benz OM 906 LA                           Mercedes Benz OM 906 LA
Maximum Power (DIN)                             150 kW @ 2 200 rpm                                150 kW @ 2 200 rpm
Maximum Torque (DIN)                            750 Nm @ 1 250 rpm                                750 Nm @ 1 250 rpm
Displacement                                    6.4 liters                                        6.4 liters
Aspiration                                      Turbo-charged intercooled                         Turbo-charged intercooled

Electrical System

                                                24V system with resettable circuit breakers.      24V system with resettable circuit breakers.
                                                150 A Niehoff Alternator                          150 A Niehoff Alternator
                                                US Mil Spec black out lighting and drive lights   US Mil Spec black out lighting and drive lights
                                                Instrumentation to SAEJ1709 (data bus driver)     Instrumentation to SAEJ1709 (data bus driver)

Braking System

Service Brakes                                  Full air                                          Full air
Park Brakes                                     Spring applied                                    Spring applied
Suspension                               Husky MKIII                                         Husky 2G

Springs                                  Semi elliptic leaf springs (11 blade)               Semi elliptic leaf springs (13 blade)

Shock Absorbers                          Hydraulic, double acting telescopic                 Hydraulic, double acting telescopic

Wheels and Tires

Rim Tire                                 20" x 10" steel split rim                           20" x 16" steel split rim
Overpass Tire Size                       450/80 R20 (standard fitment)                       550/70 R20 (optional extra)
Operating (Detecting) Tire Pressure      60 kPa                                              60 kPa
Off Road (Sand) Tire Pressure            100 kPa                                             100 kPa
On Road (Tar) Tire Pressure              200 kPa                                             200 kPa
Road Tire Size                           14.00 R20 (optional extra)                          14.00 R20 (standard fitment)
Operating Pressure                       280 kPa                                             280 kPa
Both Fitting With Bead Spacers           Yes                                                 Yes
CTIS System To Adjust Pressure For Cab   Yes                                                 Yes

Axle

Make                                     Axletech 4000 Series                                Axletech 4000 Series
Type                                     Planetary with selectable diff lock and full CTIS   Planetary with selectable diff lock and full CTIS
Ratio                                    8:1                                                 8:1

Transmission

Make                                     Allison 2500 SP                                     Allison 2500 SP
Type                                     5 speed automatic (5 forward, 1 reverse)            5 speed automatic (5 forward, 1 reverse)

Transfer Transmission

Make                                     KHD-Z65                                             KHD-Z65
Type                                     2 speed gear drive                                  2 speed gear drive
Ration                                   1.03 high, 2.15 low                                 1.03 high, 2.15 low

Steering System

                                         Full power steering (hydraulically assisted)        Full power steering (hydraulically assisted)
                                         Unique mechanical Four Wheel Steer system           Unique mechanical Four Wheel Steer system

Environmental Performance

Maximum Operator Temperature             56° C                                               56° C
Minimum Operator Temperature             -32° C                                              -32° C
Air conditioner                          12 000 BTU/hr 3.5 kW cooling                        20 000 BTU/hr 6.0 kW cooling
                                         (+40°C to +20°C in 5 minutes)                       (+40°C to +20°C in 8 minutes)
                                         (-20°C to +10°C in 15 minutes)                      (-20°C to +10°C in 15 minutes)

Detection System

Type                                     VMMDS (DSP)                                         VMMDS (HS-DSP)
Coil                                     Dual                                                Dual
Mode                                     Magnetic Pulse Induction                            Magnetic Pulse Induction (HI-SENSE)
Test Coil                                Yes                                                 Yes
Antennae Height Adjustment               Mechanical/External                                 Electrical/Adjustable by operator from inside cab

Special Features

                                         Automatic fire extinguisher systems in              Automatic fire extinguisher systems in
                                         cabin and engine compartments                       cabin and engine compartments
                                         Fitted for but not with remotely operated           Fitted for but not with remotely operated
                                         US Army Singars radio                               US Army Singars radio
                                         Unique mechanical Four Wheel Steer                  Unique mechanical Four Wheel Steer
                                                                                             High capacity window washers, wipers and
                                         Fitted for but not with ESP armor
                                                                                             downward angled windows
Tel: 972-242-8500
2933 Eisenhower St, Suite 120, Carrollton, TX 75007
www.C-S-I.com




Tel: +27 (011) 914-1400
P.O. Box 229, Boksburg, 1460, Gauteng, South Africa
www.dcd-dorbyl.com

								
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