There is also a table which shows achievements and delays in timeframe."Production clearance" delay 13 years. The report is lengthy and worth reading in full as it has some excellent information on the history of the Kaveri engine's development,time schedules,etc.
http://www.cag.gov.in/html/reports/defe ... /chap5.pdfAll in all, only two out of six milestones prescribed could be achieved and
those too, with delays ranging from 3 to 15 years. Over all, the project has
been already delayed by over 12 years.
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76
CHAPTER V: RESEARCH
AND DEVELOPMENT
ORGANISATION
5.1 Inordinate delay in fruition of Kaveri engine .Despite almost two decades of development effort with an expenditure of Rs 1,892 crore, GTREis yet to fully develop an aero-engine which meets the specific needs of the LCA. The successful culmination of the project to develop an aero-engine through ndigenous efforts is now dependent upon a Joint Venture with a foreign vendor.
Introduction.
In order to overcome the attrition of combat aircraft in the Indian Air Force (IAF) during the 1990s and beyond, the Government sanctioned in August 1983 the development of a multi-role Light Combat Aircraft (LCA), at an estimated cost of Rs 560 crore. Accordingly, there was a corresponding demand for a suitable engine for powering the LCA. Feasibility studies carried out in India and abroad revealed that there was no suitable engine available anywhere in the world, though Rolls Royce RB-1989 stage D and
GEF404-F2J engines, by and large, met the requirement, provided certain concessions were granted in the Air Staff Requirements (ASR). At this point of time, the Gas Turbine Research Laboratory was already working upon anaero-engine project, the GTX 37
1 engine, since 1982.
In August 1986, a feasibility study was carried out jointly by Aeronautical Development Agency (ADA), Hindustan Aeronautics Limited (HAL) and Gas Turbine Research Establishment (GTRE) for evaluating the GTX-37 engine. The feasibility study indicated that the GTX-37 engine would, after certain rescheduling, meet the requirements of the LCA. GTRE accordingly,
December 1986, submitted a project proposal for the development of the Kaveri engine. GTRE further proposed that it would be desirable to prove the newly designed airframe of the LCA with a proven engine first. Subsequently,
the prototypes would be flown with the GTX-35 engine, as soon as this engine was type certified and cleared for the flight. Based on the above proposal, Government sanctioned a project in March 1989 at a cost of Rs 382.81 crore with the probable date
of completion (PDC) as December1996, for the design and development of Kaveri engine.
The Kaveri Engine Project was sanctioned with the following basic objectives: Designing and developing the GTX-35 engine to meet the specific needs of the LCA. To create a full fledged indigenous base to design and develop any advanced technology engine for future military aviation programmes.
The engine so developed was to establish its performance integrity in various categories of tests prescribed by the aero-engine industry world over. Given that the development of the Kaveri engine is critical to the establishment of indigenous expertise in the field of aerospace engineering, audit examined the Kaveri Engine Development Project (KEDP) from the
initiation of the project till date (with emphasis on the period 2002-08), and the achievement of the goals and objectives set in the project, with reference to economy, efficiency and effectiveness. The audit findings were forwarded to
the Ministry in November 2008; their reply was received in January 2009 and has been taken into account while finalising the audit findings. Findings of the audit study follow
(table given in report)Report No. 16 of 2010 -11 (Air Force and Navy)
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III Shortcomings in the engine developed
Despite incurring an expenditure of Rs1,892 crore (Annexure-III) as of March 2010, the engine developed has many problems.
The weight of Kaveri engine required to fly the LCA should not exceed 1100 Kg. The first assembled Kaveri K1 engine weighed
around 1423.78 Kg. Therefore, GTRE embarked on a weight reduction plan as early as July 1993. However, due to delay in
development of the component assemblies/modules, polymer composites, design and freezing, GTRE has not been able to achieve
the derived weight in the engine and, as of January 2009, the engine weighs 1235 Kg. Certain critical and crucial activities for successful development of Kaveri, viz. development of Compressor, Turbine and Engine Control System, have been lagging behind despite increase in cost by Rs 186.61 crore. GTRE has been unable to freeze the design of the turbine blades, the
compressor has witnessed mechanial failure in performance and the engine control system is not flight-worthy
Ministry stated, in January 2009, that the target of reducing engine weight by 135 Kg is expected to fructify only around production phase. Testing of the existing engines has also indicated short-comings. Various tests have to be undertaken at stages in order to test the different modules of the Kaveri engine for quality, efficiency an d endurance. Audit found that critical
tests for components have not been carried out owing to the absence of facilities. More significantly, tests carried out to evaluate the engine itself have revealed the following deficiencies:
Conclusion
he Kaveri Engine Development Project is an ambitious project aimed at indigenisation of the propulsion system for LCA. However, the prime objective of the project has not been achieved and GTRE has been unable to deliver an engine that could power the LCA despite a cost overrun of 642 per cent and delay of about 13 years. The project is now faced with the alternative
of entering into a joint venture with a foreign house for further development of the engine. Even after about two decades, since its sanction, the probable outcome of the project vis-à-vis its objectives in near future cannot be foreseen clearl