Last year the U.S. Forest Service had eight K-MAX helicopters under exclusive use contract to help suppress wildfires. Lockheed Martin configured unmanned K-MAXs to deliver thousands of loads of supplies and equipment to soldiers in Afghanistan between 2011 and 2014, carrying more than 4.5 million pounds of cargo, sometimes through areas that would be considered unacceptably risky for human pilots.
On November 6, 2014 a team of Lockheed Martin and Kaman unmanned aircraft demonstrated its ability to aid in firefighting operations. During the demonstration, the remote controlled Indago quad rotor effectively identified hot spots and provided data to an operator who directed the unmanned K-MAX helicopter to autonomously extinguish the flames.
In one hour, the unmanned K-MAX helicopter lifted and dropped approximately 3,000 gallons of water onto the fire. A Skycrane could almost do that in one drop. This seems like a small amount of water for the K-MAX and appears to be about five drops, after dipping water from a nearby pond. Usually the K-MAX can carry about 680 gallons, not quite meeting the minimum capacity of 700 gallons for a Type 1 helicopter.
“The unmanned K-MAX and Indago aircraft can work to fight fires day and night, in all weather, reaching dangerous areas without risking a life,” said Dan Spoor, vice president of Aviation and Unmanned Systems at Lockheed Martin’s Mission Systems and Training business.
“This demonstration signifies the potential for adapting proven unmanned systems and their advanced sensors and mission suites to augment manned firefighting operations, more than doubling the amount of time on station,” said Kaman Chairman, President and Chief Executive Officer Neal Keating.
The K-MAX autonomously dipped water from a pond and delivered it to the fire location. The helicopter was manufactured by Kaman and outfitted with an advanced mission suite by Lockheed Martin. Using its electro-optic/infrared (EO/IR) camera, K-MAX can locate hot spots and designate the location to its operator for water drops at that location. K-MAX has proven the ability to autonomously conduct resupply operations with the capability to deliver to four different locations. Its flexible multi-hook carousel is suited for attachments such as water buckets, litters and medical supplies.
K-MAX manned helicopter at Custer (South Dakota) Airport, July 10, 2012, Photo by Bill Gabbert.