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Unmanned Small Airship System
Recently, ADRDE is working on Unmanned Small Airship System. This will be an autonomous guided and controlled platform with manual override capability. The Airship would be made up of PU coated fabric and would be filled up with Helium gas. Other systems such as Flight Controller, On Board Flight Controller, Obstacle Avoidance & Warning System, Propulsion System, Fin Control Surfaces, Gondola, Landing Gear etc. would be mounted on to the Airship.
Unmanned Small Airship System can be used for coastline surveillance, coastal area monitoring and Civil Management, Disaster Management, monitoring of airports / vital installations, Intruder detection etc
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Tactical Aerostat
A tactical Aerostat system with V/UHF payload has been designed by ADRDE and one prototype hardware is developed in a very short duration. This design was undertaken in response to Army's requirement of an Aerostat system which will be operating at 12000 ft plus height with the payload. The total Aerostat System including Gas Management and Ground Control, is transportable in hilly terrains of 2 nos. of 2.5T military vehicles. This Tactical Aerostat has undergone trial demonstration to users at Tawang in North-East successfully.
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Hydrostatic Drive for Winch & Mooring System of Aerostat
Hydrostaticdrives are widely recognized as an excellent means of power transmission when variable output speed is required. They offer fast response, maintain precise speed under varying loads, and allow infinitely variable speed control from zero to maximum. Unlike other mechanical transmissions, hydrostatics have a continuous power curve without peaks and valleys, and they can increase available torque without shifting gears. Hydrostatic drive technology is used to develop winch and mooring system for medium size Aerostat whose purpose is to raise, lower and hold the balloon. It contains a pressure compensated, load sensing variable displacement axial piston pump, Hydraulic actuator, proportional valve bank and all required controls in one simple package. Such a system provides all the noted advantages of a conventional hydraulic system. It has been designed for raising and lowering the Aerostat at the speed of 75 m/minute at 3400 kgf load and it can sustain a load up to 10T load.
