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Kaveri Successfully Completes Official Altitude Testing, Demonstrates First

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Kaveri Successfully Completes Official Altitude Testing, Demonstrates First Block Of Flight In Flying Test Bed

MONDAY, DECEMBER 10, 2012

K-2.JPG

K-3.JPG

MAKS airshow 2011-Zhukhovsky,Russia

In Lok Sabha today Defence Minister A K Antony gave an update on the progress made by the Kaveri Engine Development Project as follows:

(i) So far, 9 prototypes of Kaveri Engine and 4 prototypes of Kabani (Core) Engine have been developed.
(ii) 2200 hours of test (ground and altitude conditions) has been conducted.

(iii) The following two major milestones have been achieved:-

---Successful completion of Official Altitude Testing (OAT) ; and
---Demonstration of First Block of flight of Kaveri Engine in Flying Test Bed (FTB).


Kaveri Engine was integrated with IL-76 Aircraft at Gromov Flight Research Institute (GFRI), Russia and flight test was successfully carried out upto 12 km maximum altitude and maximum forward speed of 0.7 Mach No. Twenty Seven flights for 57 hours duration have been completed.


DRDO demonstrated its technological capability in aero-engine technology. This has been a great achievement in the aerospace community of the country, when the first ever indigenously developed fighter aircraft engine was subjected to flight testing. Tacit knowledge acquired by the DRDO scientists during this project will also be applied for further aerospace technology. Kaveri spin-off engine can be used as propulsion system for Indian Unmanned Strike Air Vehicle (USAV).

The project was sanctioned in March 1989 at an estimated cost of Rs.382.81 Crore and Probable Date of Completion (PDC) of December 1996. The PDC was extended to December 2009 and cost was revised and enhanced to Rs.2839 Crore. So far, Rs.1996 Crore has been utilized in this project

This information was given by Defence Minister Shri AK Antony in a written reply to Shri Uday Singh in Lok Sabha today.


Chindits: Kaveri Successfully Completes Official Altitude Testing, Demonstrates First Block Of Flight In Flying Test Bed (FTB)
 
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Persistence pays. A decade from now, if India has a strong grasp on the technology involved, then all the failures will be looked at as the tough grind before success. Success sweetens everything, even bitter failure for years.

 
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what is the dry and wet thrust achieved by kaveri engine now?

The wikipedia page give pretty accruate figures:

GTRE GTX-35VS Kaveri - Wikipedia, the free encyclopedia

Thrust (dry): 52kN
Thrust (wet): 81kN

Weight: 1235 kg

These give the current Kaveri which will be integrated to a Tejas prototype, a thrust-to-weight ratio of 7.8

That's the one of the most important thing in terms of engine design (the other important things being: (1) Reliability, measured by mean time between overhaul and (2) specific fuel consumption)..

Just for comparison, the AL-31s which are used on Su-30MKI also have a thrust-to-weight of only 7.8

French engine M-88 has a thrust-to-weight of 10-plus and further development on Kaveri (the K-9 and K-10 projects) target to make the improved Kaveri in the region of M-88 performance.

Kaveri is a fine achievement given the technological challenges involved and so few countries who have this key technology.
 
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why is it being tested on a Russian air plane
 
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why is it being tested on a Russian air plane

It is a testbed aircraft of the Gromov Fight Test Institure from where aircraft are hired by foreigm
companies to flight-test their new aero engines.

A 4-engine plane like IL-76 is chosen because even if the new under-testing engine fails/stalls, the other
3 engines can get the plane home safety.

If you must know, China flight tested their WS-10 engine in the same way onboard a Russian-owned IL-76 jet aircraft.
 
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