Ag-Air Systems Inc.
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About Ag-Air Systems Inc.
Ag-Air Systems Inc. operates from Bend, Oregon, as an aviation engineering firm specializing in hydraulic power systems for aircraft. The company holds FAA certification and STC (Supplemental Type Certificate) credentials, enabling legal modifications to aircraft systems. Located in the Deschutes County region, this contractor serves aviation clients including agricultural aircraft operators, helicopter firefighting crews, and military aerospace programs. The business maintains a dealer network and affiliate organization partnerships throughout the United States. No consumer reviews are available for this listing, and the company does not provide residential heating or cooling services.
What distinguishes this contractor is their specialized focus on electro proportional hydraulic power systems for agricultural spray aircraft and helicopter applications. The company developed the first turbine-engine conversion for Thrush and Dromader aircraft using the TPE331 engine series, a capability they continue to support with replacement parts. Their Kawak Hover Refill Pump remains the highest-flowing pump available for medium helicopter firefighting operations at 2000 GPM. The firm holds multiple STCs for custom water tank and water-scoop systems on helicopters including the Kaman K-1200 and CH54B Sky Crane.
Customer scenarios from their project history include engineering a custom 400Hz electric motor driven hydraulic power unit to operate Boeing 757-200 cargo door mechanisms for aircraft conversion programs. The company developed motion control systems for the Blue Devil II military airship and completed hydraulic redesign work for Boeing 757 cargo conversions through Precision Aircraft Solutions. Their work on the Bell OH-58 and 206B helicopter ancillary hydraulic systems reportedly quadrupled productivity compared to standard electric configurations.
Services
Aerospace Hydraulic System Design
Custom electro proportional hydraulic power systems for fixed-wing and rotary-wing aircraft applications.
Aircraft Engine Conversions
Turbine-engine conversions for agricultural aircraft including Thrush and Dromader models using TPE331 engines.
Helicopter Hydraulic Systems
Variable hydraulic drive systems for Bell, Sikorsky, Kaman, and Hiller helicopters.
FAA Certification Services
STC development and FAA certification for aircraft modifications and system installations.
Firefighting Equipment Manufacturing
Water tanks, hover refill pumps, and water-scoop systems for helicopter firefighting operations.
Aircraft Door Hydraulic Systems
Custom hydraulic power units for cargo door mechanisms on converted Boeing 757 aircraft.