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came off second best - success was the ultimate outcome.
The South African Navy will carry this excellent
missile system on all four of its Corvettes.
Bitter-Sweet
Success!
Rooikat Turret
Upgrade
Denel Land Systems received
an order from Armscor
during February
2006 to the total value of
R51.5 million, to upgrade
a total of 76 Rooikat turrets.
The planned completion
date for this upgrade
project is May 2008.
The Rooikat is the prime armoured
fighting vehicle of the
SANDF. As an 8 X 8
wheeled platform, it provides
the system with excellent
mobility on tarred roads as
well as cross-country terrain.
This mobility has been envied
by defence forces and vehicle
manufacturers all over
the world. The Rooikat turret,
sporting a 76 mm main weapon and modern fire-control
system, provides the system with lethal fire-power and accuracy
on the battlefield.
Development of the Rooikat system started in the 1980s.
The prime contractor was BAE Systems-OMC (then known
as OMC), who also developed the vehicle platform. The turret
was developed by Denel Land Systems (then known as
LIW). Turret production commenced in 1992 and was completed
in March 2000. A total of 244 systems were manufactured
and consisted of three basic configurations.
At the time of the initial development of the Rooikat turret,
the best available technology was implemented and the performance
of the turret was comparable to similar systems
worldwide. During the latter part of the 90s however, the
SANDF realised that technology had made great strides. It
was decided to improve some performance and reliability aspects
of the Rooikat, making use of the latest technology.
Development orders were placed on OMC for the vehicle and
Denel Land Systems for the turret.
The major objective of the turret upgrade was to:
! Improve the gun drive system and fire-control
computer to provide better weapon stabilization and
target acquisition characteristics
! Improve some man-machine-interface functions
! Improve the performance of the commander sight
! Develop new commander and loader hatches with new
functionalities
! Improve the commander seat
! Implement some additional minor modifications to the
turret.
The main focus of the development was on the improvement
of the gun-control and fire-control systems. As the supplier
of the Integrated Fire Control System (IFCS) for the Rooikat,
RDL was contracted by Denel Land Systems to complete this
development.
To achieve the more stringent stabilization requirements, new
Fibre Optic Gyros (FOG) were developed to replace the existing
mechanical gyros. It was also decided to supplement the
weapon gyro with an additional Feed Forward Gyro. Minor
modifications were implemented on the elevation gearbox to
reduce backlash and improve stiffness. This upgrade also
required extensive upgrade to the control software.
During Phase 1 of the development, it was found that the
capacity of the existing computer was not sufficient to cater
for this upgraded software. A second development phase
was then initiated to allow for the development of new processor
and interface cards. The new processor cards had to
interface with the older hardware in the computer.
The success of the upgrade development was proven during
a successful firing trial with the development system in February
2005. After completion of this firing trial, four additional
Rooikat systems were upgraded as part of the industrialisation
phase.
All four systems completed the factory acceptance successfully
and were subsequently delivered to the SANDF for evaluation
during a user Operational Test and Evaluation (OT&E).
As a result of the successful development work, the SANDF
decided to contract Denel to retrofit all 76 Rooikat turrets.
Police Air Wing Gets Denel
“Eyes in the Sky”
The scope of this contract
includes a full turnkey solution
for the supply, installation
and certification
of four Goshawk 350
systems. As with other
variants of Denel’s renowned
family of gyro-stabilized airborne
surveillance systems,
the Goshawk 350 is fitted
with Denel’s Kenis continuous
zoom thermal imager,
daylight TV camera and auto
tracking. The SAPS contract
also provides for internal
equipment (including an operator
console with integrated
LCD monitor and
VCR), external role equipment
and the supply and interface
to digital microwave
downlink systems.
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