IISc-Incubated Thinking Balloon Successfully Tests Autonomous Aerostat System Over Three Days

Bengaluru-based deep-tech startup Thinking Balloon has successfully tested its autonomous tethered aerostat system over three consecutive days, marking a milestone in India's indigenous aerospace technology development. Founded in 2024 by brothers Rushabh Chalke and Saurabh Chalke, the startup is developing aerial platforms designed to provide persistent surveillance and communication capabilities.

During the tests conducted near Nelamangala, Bengaluru, from October 28 to 30, the system demonstrated autonomous launch, altitude control, position holding, recovery, docking and lifting-gas refilling. Unlike conventional drones that consume significant energy to remain airborne, tethered aerostats use lighter-than-air gas for lift and can support equipment such as cameras, radars and communication systems for extended periods.

Incubated at IISc's Foundation for Science, Innovation and Development, Thinking Balloon is exploring applications across defence, infrastructure monitoring, communications and aerospace testing. The development highlights the growing role of Indian deep-tech startups in building homegrown aerospace capabilities.

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