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CHI Aviation’s affiliate company, Helimax Aviation, Inc. is a world leader in the provision of aerial fire suppression services with the CH-47D, in support of the US Forest Service, Department of the Interior and numerous State agencies. These services include wild land firefighting initial attack capabilities, transporting government personnel to incidents across the United States, and providing suppression support using external load long line buckets to drop water and retardant. These operations are performed in austere environments in extreme conditions, including high and hot density altitudes, restricted visibility, take off and landings from remote locations, and landing in unimproved areas.

beyond capable

Click to learn more about our fire suppression capabilities.


Helimax has supported the USFS since 1997 with the UH-1B, Bell 214B1, Bell 206L4, Bell 205 A1++, Bell 212HP, and Sikorsky S58T. In 2015, Helimax made the decision to focus solely on Heavy-Lift (Type I) support, choosing the CH-47D as the proven leader in this category.