DRDO Abhyas High Speed Expendable Aerial Target (HEAT) ,Indian Armed Forces
DRDO Abhyas is a high-speed expendable aerial target (HEAT) being built by the Aeronautical Development Establishment (ADE) of the Defence Research and Development Organisation (DRDO) for the Indian Armed Forces High-speed Expendable Aerial Target (HEAT) offers a realist threat scenario for practice of weapon systems.
ABHYAS is designed for autonomous flying with the help of an autopilot. A lunberg lens in the nose cone improves the RCS of the target for weapon practice. It also has an Acoustic Miss Distance Indicator (AMDI) to indicate the miss distance.
On January 2013,The concept was proved and pre-project trails were completed.The first Experimental Launch of the Abhyas was held at the Chitradurga Aeronautical Test Range on 23 June 2012.With this test the gas turbine engine has been identified and integrated on the Abhyas airframe and its test run with the aircraft fuel system and s-airtake has been completed.
The project was sanctioned with an initial DRDO funding of Rs 150 million and the ADE carry out 15 technology demonstrators (TDs) over the next two years. After the acceptance of the prototypes or TDs by the Indian Armed Forces, serial production will start. The Indian Defence Services have also revealed a combined global tender projecting the requirement of 225 HEAT drones.
The Design of fuselage is somewhat similar to that of DRDO Lakshya as it was designed by adopting the tow body of DRDO lakshya. he fuselage consists of five sections, namely the nose cone(The forward section of UAV), equipment bay, fuel tank bay, air intake bay and tail cone.
The material used for the nose and tail cones are composite (GFRP(Glass Fibre-Reinforced Polymers)), whereas the material of the equipment bay, air intake bay and fuel tank are made up of an aluminium steel alloy.
THE wing and tail plane of the Abhyas have been derived from the Lakshya by deducting them,however the wings of the Abhyas are integrated on the upper-side of the body whereas the Lakshya has under body wings.It is also designed for autonomous flight with the help of an autopilot.
Engine and Avionics
The DRDO Abhyas is powered with a gas-turbine engine capable of producing a thrust of 25 kg.The Abhyas has a endurance of 30-45 minutes.
Abhyas is integrated with on-board flight control computer,Global Positioning System (GPS) and a miss-distance indicator.THE Radar cross section (RCS) of Abhyas as well as its visual an infrared signatures can be augmented to simulate a variety of aircraft for air-defence weapon practices.This system can also be funcion as a jammer platform and decoy. The HEAT system is utilized to do away with the post-launch recovery mode, which is time-consuming and difficult in a scenario as the sea.
Launch Platform and Storage
The Abhyas UAV is launched form a mobile launcher with the help of two 68 mm booster rockets that provide the thrust at initial stage.At the end of its launch phase the burnout booster rockets ae jettisoned.Thereafter,the main gas-turbine engine powers the vehicle during cruise phase.
THE Drone has a weather proof.Drop and vibration proof and tactic load-tested dedicated box integrated with it that is used for transportation and storage purpose.It has dimensions of 2570 mm*710 mm*415mm and made up of EPE (expanded Polyethylene) and with an XLPE (Cross-Linked polyethylene) foam material inside.
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