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LAV III / T7 105 mm SP HOWITZER

INTEGRATED BALLISTIC SYSTEM
LOW SYSTEM WEIGHT
EXTENDED FIRING RANGE
QUICK REACTION TIME
HIGH FIRE PRECISION
TRANSPORTABILITY C130
EXCELLENT LETHALITY
EXCELLENT FOR CLOSE FIRE SUPPORT

INTRODUCTION
The 105 Self-Propelled (SP) Howitzer is based on the unique 105 mm Towed Gun Howitzer ballistic system as developed by Denel, packaged in an integrated and lightweight turret system.

SYSTEM DESCRIPTION
The T7 turret can be integrated with a vehicle or platform that can accommodate a slewing bearing diameter of 2210 mm and a trunnion recoil transfer force of 25 metric tons. The T7 turret as fitted to a LAV III is transportable by a C-130 additionally the turret layout allows for crew egress/ingress through the vehicle's crew volume to assist access during C-130 RO-RO handling and operations. The T7 design is the culmination of the Denel's technical capabilities established both in turreted infantry / artillery systems and artillery ballistic developments in the preceding years.

MAIN ORDNANCE

Calibre
Barrel length
Breech
Muzzle brake
Recoil Dual
Counter recoil

105 mm
58 calibre effective, mono block, autofrettaged
Semi automatic swing and slide type.
Pepperpot multi stage and internally rifled
recoils with fixed displacement
Gas type

Traverse and elevation control equipment

Type
Traverse
Elevation
Elevation range
The traverse range is limited by the platform
Traverse range
Traverse speed

Elevation speed

Electro-hydraulic
Hydraulically driven gearbox
Elevation cylinders combined with gas equilibration
0º to 75º (0 to 1333 mil)

± 30 (533 mil) when fitted to LAV
115 mil per second maximum
0.5 mil per second minimum
130 mil per second maximum
0.5 mil per second minimum

Sighting and laying

Non line of sight firing
The Commander station is equipped a Fire Directing System (FDS) integrating a Honeywell TALIN (Tactical Advanced Land Inertial Navigator) and which interfaces to the Gun Control Unit (GCU) that provides for automatic gun laying through hydraulic elevation / traverse drives giving a consistency (range) of .36% and a consistancy (deflection) of 2 mil and enhances rapid target engagement.

LINE OF SIGHT FIRING
Thermal Imaging Sight (TIS)

NON-LINE OF SIGHT
The system is equipped with an esternal mounted thermal imaging sight (TIS) for target aquisition.

Ammunition handling

The ammuntion handling system is a positive chain type rammer controlled from the integrated Loader Control Panel. This system enables fully automatic ramming of both the projectile and charge. Manual loading of the system provides for redundancy.

Physical characteristics

Turret mass
System mass

3 750 kg
18 200 kg (LAV?III)

105 mm ARTILLERY AMMUNITION PROJECTILES

HE with TNH filling HE-PFF, Pre-formed Fragmention with TNH filling. Tungsten balls assembled inside shell. Standard Boat Tail Base bleed (field interchangeable) Projectile Characteristics
Length Mass Flight mass Filling type Filling mass Static lethal area Dispersion @ 21 000 m Ballistics	477 mm (unfused) 15,08 kg 15,8 kg TNH 2,3 kg STD - 500 m2 PFF - 1900 m2 PE < 0,3% of range PE < 0,5 mil in deflection maximum range 24 000 m plus @ 950 m/sec

FUSES
Multi-option with Time option Proximity option Dead time Point detonation Delayed point detonation	3,0 to 199,9 seconds Optimised burst height - Low, Medium, High – 3 to 15 meters Programmable to – 3,0 to 199,9 seconds Super quick surface action Programmable delay – up to 15 milli-seconds
Compatible fuses on direct action, electronic time or proximity types, all suitable for full charge and maximum range application.

MODULAR CHARGE SYSTEM
Optimised to reduce barrel wear Reduced muzzle flash Ergonomically optimised with respect to ease of handling Reliable and repeatable ballistic performance under specified environmental conditions Insensitive munitions characteristics Easily assembled according to required number of modules by means of clip on procedure

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