Tarmak007 -- A bold blog on Indian defence: Aeronautical Test Range (ATR) Chitradurga

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Showing posts with label Aeronautical Test Range (ATR) Chitradurga. Show all posts
Showing posts with label Aeronautical Test Range (ATR) Chitradurga. Show all posts

Tuesday, February 19, 2013

EXPRESS EXCLUSIVE: DRDO developing high-speed expendable aerial target (HEAT) drone Abhyas | Younger brother of Lakshya, ADE plans 15 TDs of Abhyas in next 2 years


The above combo of photos were taken during the proof-of-the-concept experimental test flight of Abhyas, a high-speed expendable aerial target (HEAT) drone, held at DRDO's Aeronautical Test Range (ATR) range in Chitradurga last year. 
By Anantha Krishnan M
Express News Service
Bangalore: Abhyas, a high-speed expendable aerial target (HEAT) drone, is taking definite shape at the hangars of Aeronautical Development Establishment (ADE). The scientists are now working on the propulsion and control systems to be fitted onboard Abyas, taking the project closer to it's final configuration. Kept under wraps till Aero India-2013, Abhyas is tipped as the younger brother of Lakshya, a pilot-less target aircraft (PTA), now being extensively used by the three wings of Services.
In an interview to Express, ADE director P S Krishnan confirmed that Abhyas has already undergone a proof of the concept, pre-project trial at the Defence Research and Development Organisation's new test-range in Chitradurga. “The first experimental launch (minus the engine) of Abhyas was held last year at the Chitradurga range. It was the first ground-based trial held at the new range. We are now working on a small gas turbine engine weighing 9 kg having a thrust of 25 kg to be fitted on to Abhyas,” Krishnan said. (Corrected on blog: Earlier I had said 19 kg in place of 9 kg.)
He said in order to put the project on a fast-track, ADE scientists have used the the same toe-body of Lakshya. “We have sized the wings and tail plane in proportionate to that of Lakshya so that we are able to get the final product at the earliest. We have conceived a launcher and also identified two 68-mm rockets for Abhyas. The first experimental flight successfully demonstrated the launch and configuration capabilities,” Krishnan said.
With an endurance of 25-30 minutes, Abhyas will be fitted with sensors and is GPS-enabled. It will have onboard actuators, a flight control computer and a miss-distance indicator. The project was sanctioned with an initial DRDO funding of Rs 15 crore and ADE will roll out 15 Abhyas technology demonstrators (TDs) in the next two years.
The Services have floated a combined global tender projecting the requirement of 225 HEAT drones and ADE says it will not be bidding for the same. The Indian Navy wants HEAT platforms so that it can do away with the post-launch recovery modes, which are time-consuming and difficult in a huge scenario like the sea. “In addition to being a stable vehicle for weapon practice, Abhyas can be used as an effective jammer platform. Every bit of onboard systems come for Indian industries, which makes Project Abhyas special in many ways. ,” Krishnan said.
He said ADE is confident of getting Abyas straight away on to the production mode, once the TDs are accepted by the Services. Around 50 scientists are working on Project Abhyas at ADE now. In the HEAT vehicle category, the Mirach integrated aerial variants from Italy are said to be the best in the business now, and only time will tell whether India's Abhya will better its might.
Copyright@The New Indian Express

Friday, April 1, 2011

Breaking on Tarmak007: Tejas readies for more drop tank tests at ATR


India's light combat aircraft (LCA) Tejas is readying itself for advanced drop tank trials. Currently completing flight trials in the post-initial operational clearance (IOC) phase, military sources tell Tarmak007 that the Tejas had  begun  drop-tank tests at DRDO's new Aeronautical Test Range (ATR) at Challakere, in Chitradurga of Karnataka, 100 miles north-west of Bangalore.
"An LSP-3 jettisoned drop tank at 0.7 Mach speed last week and the separation was successful. LSP-5 monitored the release. We are scheduled for more trials," military sources confirm to Tarmak007.
The ATR became operational on December 15, 2011, when Tejas conducted air-to-ground-trials. Hectic activities were seen at HAL's military airport in the last few days confirming the preparations.
When asked whether the trials are high-speed in nature, the source said: "Need not be. The thrust is not on speed. It can be a combination of speed and the status of the tank. We are scheduled for another test at 0.7 Mach speed (third one) with different fuel state. The key is clearing the corner points, opening-up the envelope and achieving most critical test points towards full clearance."
(More details later)

Saturday, December 18, 2010

ADA confirms Tejas LSP-3 jettisoned a 1200-litre drop tank over ATR

Team Tejas after returning from the maiden drop tank jettison mission at ATR Chitradurga, pose for shutterbugs at Old Bangalore airport.
(A late-night DRDO release reproduced below)
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Jettisonable drop tanks are carried by a combat aircraft, after completing the mission are required to be dropped from the mother aircraft for a quick get away from the enemy territory and other emergency situations. To ensure safety of flight, clean separation of the tank with adequate clearances from the mother aircraft or neighboring stores need to be established from flight test. This extremely safety critical flight test requires thorough planning and preparation supported by theoretical analysis and a level of verification of the predictions through ground tests on specialized test rigs set up for this purpose.
The theoretical predictions were further verified through what is called ‘Pit drop tests’ conducted on a test specimen using specially designed test rig with part of the aircraft system and high speed photography system integrated with it. The test cases covered a member of conditions such as empty, partial and full drop tanks as well as different Ejector Release Unit (ERU) settings.
The flight test were planned by the National Flight Test centre (NFTC), ADA at certain representative critical release condition.  Considering the safety critical nature of this test, a safety review was conducted at NFTC to ensure all foreseeable safety issues were taken care of before embarking on this important test. To capture the flight data, a dedicated and specialized Airborne Separation Video System (ASVS) is installed on the Test aircraft. The system comprised of very high speed digital cameras installed in a specially designed camera pod and linked to a Multi System Controller (MSC) installed onboard the aircraft. The MSC gets a pulse from trigger to jettison the tank where upon the cameras are switched on in a pre-determined sequence to capture this critical event.
Mr PS Subramanyam, Programme Director (CA) and Director, ADA told “the 1200 Ltr drop tank jettison trial was conducted on 17 December 2010 at a critical point in the jettison envelope on Tejas LSP-3 aircraft piloted by Gp Capt Suneet Krishna. The trial was conducted over the recently commissioned NFTC Air to ground range at Chitradurga. The trial aircraft was escorted by another Tejas PV-2 which captured the external video picture of the drop tank trajectory after release”.
Dr Prahlada, CC-R&D (Ae-SI) – DRDO opined “with such test experiments made by the team, the aeronautical test range facility at Challakere has paved the smooth way for subsequent trials of different natures.  He also said that if this facility were not to be commissioned at Challakere, all such flight tests would have to be carried on either at Hyderabad or Pokran.  In view of the close proximity to Challakere to Bangalore it was more comfortable in conducting the test flights by the dedicated team the process of which could be monitored from Bangalore”.
The successful trial is the result of orchestrated team effort on the part of different organizations and  specialists involved in this prestigious national programme- yet another feather  on the decorated cap of the ‘Team Tejas.’


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