Lockheed Martin Tests Autonomous Black Hawk for Advanced Firefighting Tech

Sikorsky, a Lockheed Martin company and Rain demonstrated and tested autonomous wildfire suppression techniques on both propane and burning brush piles using Sikorsky’s optionally piloted MATRIX flight autonomy system layered with Rain’s wildfire suppression planning software. Performed in late April in Southern California, the flight tests familiarized firefighters with the potential of autonomy to help crewed and uncrewed firefighting helicopters find and suppress early-stage wildfires.

The autonomous wildfire suppression tests in late April were the first performed by Rain and Sikorsky in California over live fires in wildfire-prone terrain; at 3,300-ft altitude; sometimes in wind gusts up to 30 knots (35 mph). The tests were performed in close collaboration with firefighters from the San Bernardino County Fire Protection District, who built and set fire to multiple brush piles for the aircraft to find and suppress with water.

Sikorsky’s autonomous Black Hawk helicopter is equipped with fly-by-wire flight controls, MATRIX flight autonomy, satellite datalink, and on-board thermal and vision cameras. MATRIX allows operators to choose between fully autonomous and piloted modes.

For the fire suppression tests, Rain layered its mission autonomy onto the MATRIX system, enabling a ground operator to command the Black Hawk aircraft using a Rain tablet to assign specific tasks including: Guiding the aircraft to a water source; filling the bucket in a hover; searching and finding a brush pile fire with the aircraft’s thermal sensor; determining the fire size; calculating the flight path, speed and altitude to the fire; accounting for wind speed and direction during suppression; and determining the precise moment to release water to achieve the desired water coverage level.

While in flight, sensors mounted on the aircraft geolocated the fire and streamed video to the ground operator’s command tablet for situational awareness and mission planning decision making.

Sikorsky safety pilots were hands-off the flight controls as the Black Hawk aircraft flew with a 324-gallon Bambi Bucket attached to a 40-ft line. Wildfire Water Solutions provided the water source — a 189,000-gallon water tank installed less than a mile from three adjacent hilltop burn sites.

With the optionally piloted flexibility of Sikorsky’s MATRIX technology, the Sikorsky and Rain team also demonstrated transition from autonomous control of the aircraft to piloted operation depending on the operational and environmental conditions.




In total, the aircraft flew 24 hours in California during two weeks of flight. Witnessing portions of the tests were representatives from CAL FIRE, San Bernardino County Fire District, Orange County Fire Authority (OCFA), and the U.S. Forest Service. During one series of water drops, a crewed OCFA Sikorsky S-76 airborne command helicopter operated alongside the autonomous Black Hawk aircraft. The joint flights demonstrated communication interoperability of the autonomous aircraft with a human-piloted helicopter in the same Fire Traffic Area.

The Black Hawk helicopter is similar to Firehawk™ helicopters flown by CAL FIRE, Los Angeles County, Orange County and other local governments. CAL FIRE and local fire departments across California operate 24 Sikorsky S-70 Firehawk helicopters, each equipped with a 1,000-gallon belly-mounted water tank. Three more Firehawk helicopters are to be delivered to CAL FIRE this year.

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