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navigation system. The fifth launch of sub-          Fuel System Test Rig (FSTR)
sonic cruise missile, Nirbhay was carried out
on 7th Nov 2017 with an objective to prove the                                       Fuel System Test Rig
repeatability of both the boost phase and cruise
phase maneuvers. Notable features of this mission         FSTR has been designed and developed by
were the demonstration of low-altitude flight        ADE to test the integrated engine - fuel system
over sea, and the capability to home on to a         of UAV on a rig prior to its assembly with the
target. The missile was launched vertically and      UAV. The capability of the fuel system to meet
it executed in-flight wing deployment, in-flight     the uninterrupted fuel supply requirements of
engine start, way-point navigation, and cruised      the engine at required pressure and flow rates
at an altitude of 200 m at the terminal phase.       at various attitudes of the UAV can be tested
The mission was successful and the missile           on the FSTR.
travelled for 50 minutes, covering a distance
of 647 km. All the objectives set for the launch          FSTR is mounted over a foundation which
were achieved.                                       can dampen the vibrations developed during its
                                                     operation. A roll platform and a pitch platform
Aeronautical Test Range (ATR)                        form a part of FSTR to generate attitudinal effects
                                                     during testing. Pitch and Roll are set individually
                                 ATR at Chitradurga  or in combination with the help of electro-
                                                     mechanical actuators. FSTR is equipped with a
     ATR at Chitradurga, Karnataka, is a key         redundant control and data acquisition system,
facility for integrating and testing various UAVs    overhead crane, compressor and generator. It is
before being inducted into the Armed Forces          installed inside a hangar consisting of acoustic
and other organisations. This outdoor test and       proof paneled walls to lower the noise levels.
evaluation facility is spread across 4,029 acres
which includes a runway. This test range is the           FSTR has been cleared by Director General
first of its kind in the country exclusively meant   Aeronautical Quality Assurance (DG AQA).
to conduct flight-tests of indigenous unmanned       This rig has the distinction of being the unique
and manned aircrafts (developed by the DRDO),        facility in India where aircraft fuel system can
including the naval and trainer versions of the      be tested along with engines at various Roll
LCA, UAVs ‘Rustom-I’ & ‘Rustom-II’; AEW&C            and Pitch attitudes, thereby simulating the
systems, parachutes and aerostats, etc. ATR has      flight conditions.
been made operational with a 2 km runway
and the range was dedicated to the nation by         Heavy Drop System (HDS)
Hon’ble Raksha Mantri (RM) on 28th May 2017.              Heavy Drop System with capability to drop

                                                     loads like 3-Ton from AN-32 aircraft, and 7-Ton
                                                     and 16 Ton from IL-76 aircraft have already been

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