Energetically Autonomous Tactical Robot

The Energetically Autonomous Tactical Robot (EATR) was a project by Robotic Technology Inc. (RTI) and Cyclone Power Technologies Inc. to develop a robotic vehicle that could forage for plant biomass to fuel itself, theoretically operating indefinitely. It was a concept developed between 2003 and 2009 as part of the DARPA military projects for the United States military.[1][2]

Power plant

The robot was powered by a steam engine built by the Cyclone Power Technologies company called the Cyclone Waste Heat Engine, which produced power through external combustion of biomass (i.e. combustion outside of the engine), an example of a Rankine cycle engine. The engine would power the vehicle's movement as well as being used to recharge the batteries that run the sensors, arms and ancillary devices.[3]

Fuel sources

The EATR was programmed to consume certain types of vegetation as biomass to convert into fuel, and only those types of vegetation. EATR could also use other fuels such as gasoline, kerosene, cooking oil, or solar energy.

The company also included "chicken fat" as one of its proposed fuel sources in the project overview.[3]

The system was quoted as delivering an expected 100 miles (~161 km) of driving on 150 lbs (~68 kg) of vegetation.

References
  1. "Energetically Autonomous Tactical Robot (EATR) Project". Robotic Technology Inc.
  2. "Biomass-Eating Military Robot Is a Vegetarian, Company Says". FOXNews.com. 2009-07-16. Retrieved 2009-07-31.
  3. Press release, RTI Inc. (2009 April 6). "Brief Project Overview", EATR: Energetically Autonomous Tactical Robot, pp. 22.
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