posted on Feb, 7 2005 @ 03:06 AM
Predictive maintenance technologies.
Incorporation of avionics of French, Israeli and Indian origin with greater reliability, which can be ‘nuclear-hardened', i.e. can be ruggedised to
withstand the electromagnetic pulse blasts emanating from a nuclear explosion.
Incorporation of advanced composite materials into the Su-30MKI's fuselage, resulting in a higher thrust-to-weight ratio and increased weapons
For acquiring predictive maintenance capability, the IAF and Rosoboronexport FSUE have joined forces with South Africa 's Aerospace Monitoring And
Systems (Pty) Ltd (AMS). Predictive maintenance means the on- and off-board processing of aircraft sub-systems data, resulting in an accurate,
conclusive indication of the health and usage status of various airborne systems. The Su-30MKI Mk3's on-board health-and-usage monitoring system
(HUMS) not only monitors almost every aircraft system and sub-system, including the avionics sub-systems, it can also act as an engineering data
recorder. For the Su-30MKI Mk3, AMS was contracted for providing total HUMS solutions, starting with definition of the IAF's qualitative
requirements, followed by systems provision (development and implementation), integration and support phases. Methods have since been co-developed by
AMS and the IAF for the following: fatigue loading spectra; fatigue analysis methods; material fatigue behaviour; fracture mechanics; damage tolerance
analysis and testing of redundant metallic aircraft structures; fatigue crack growth analysis; crack growth, residual strength analyses, and aircraft
structural integrity programmes; and ageing aircraft issues.
It is a matter not merely of national pride but also of great practical advantage in terms of costs and maintainability that many critical elements of
the Su-30MKI Mk3's avionics suite were designed indigenously by the DRDO under a project code named ‘Vetrivale' (a Tamil name for the victorious
lance carried by the youthful Lord Karthikeya or Murugan, a son of the mythical Parvati and Shiva) in close collaboration with the IAF. The
India-origin avionics have been received and acknowledged enthusiastically by the Russian aerospace industry. The core avionics designed by DARE for
the Su-30MKI Mk3 consists of the Mission Computer, Display Processor and two Radar Computers, all of which are now manufactured by HAL's Hyderabad
Division. The 32-bit Mission Computer performs mission-oriented computations, flight management, reconfiguration-cum-redundancy management and
in-flight systems self-tests. In compliance with MIL-STD-1521 and 2167A standards, Ada language has been adopted for the mission computer's software.
The other DARE-developed product, the Tarang Mk2 (Tranquil) radar warning receiver, is manufactured by state-owned BEL at its Bangalore facility.
Other indigenous avionics on board include the HAL-built IFF transponder and an integrated communications suite.