High Availability Aerostat System

High availability Aerostat System (HAAS) is a large inflatable missile detection system. It was designed by the country of Israel. This system is used to detect threats from a distance. It floats very high.


This is a huge airship and one of the largest aerostat systems in the world. The aerostat system is a system that guarantees 24-hour monitoring. This system is called “Sky Dew”. The highly available aerostat system was developed by Israel Aerospace Industries in collaboration with aerostat manufacturers in the United States and TCOM. The highly available aerostat system is a large fabric cover. There are early warnings about cruise missiles. Cruise missiles are low-level rockets that are guided to a target via an on-board computer.  HAAS is a missile detection system added to the existing air detection system located in Israel.  Unmanned aerial vehicles have always found it difficult to counter threats due to their low flight altitude. HAAS overcomes this. The cost of implementing HAAS is lower than the cost of implementing an unmanned aerial vehicle.  HAAS is located in the northern region of the country.

Technical Details

The HAAS hull consists of two parts. The top is filled with helium. This gives the aerostat the ability to lift. The bottom is a compressed air compartment. It is equipped with a sensor and radar for detecting missiles.


Few countries in the world have introduced advanced aerostat systems. For example, China has deployed aerostat systems on some of the artificial islands in the South China Sea. The United States uses a wired aerostat system at an altitude of 4,600 meters along the border. India launched the first aerostat in 2010. As of 2016, there were two aerostat radars in India. They were purchased from Israel for 300 crore rupees. In India, an Akashdeep Medium class aerostat is under development. The aerostat payload is 200 kg. The monitoring height is 1 kilometer. It was developed by Defense Research and Development Organization.

Recently, in the 2020s, Israel began to develop weapons more aggressively. This is done to counter the threat posed by the potential threat from Iran and by the Hezbollah movement in Lebanon.

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