The world leader in advanced aircraft batteries, chargers and mechanical products.
Founded in 1923 and headquartered in Waco, TX, we are the total solution to aircraft power needs from Engine, APU Starting, Emergency Power to Ground Support and Maintenance. MarathonNorco engineers, manufactures and markets specialty power transmission products as as well as a wide range of mechanical hold open rods and special coupling devices for Commercial and Military aerospace.
It all starts with design. Our experienced engineering staff has decades of experience in power and mechanical products. We employ a Stage-Gate product development process to ensure that we build in quality and performance from the beginning. Our experience and process-driven culture give us both the flexibility and the discipline to move quickly while engineering reliable, highly technical products that perform!
We are serious about Quality! It starts in engineering, where we design our products for manufacturability to ensure defect free parts. Our facility is ISO14001/AS9100D certified, we have a Part 145 FAA/EASA Repair Station in house and we operate and staff a modern quality system that helps us deliver for you.
With 215,000 square foot of manufacturing space, we are a vertically integrated operation from raw materials to finished products. We employ the latest in digital industrial technology to manufacture precision parts to meet our exacting specifications.
Our Product Lines
Marathon Aircraft Batteries
Long life advanced aircraft batteries that are strong, reliable, and provide a high-rate of performance at extreme temperatures.
Norco Mechanicals
Custom solutions including ball reversers, hold open rods, remote release systems, latches, tensol locks, receivers and interlocks.
Christie Aircraft Battery Chargers
Our Christie™ product line covers the spectrum from power supplies, battery chargers/analyzers to highly sophisticated battery management systems.
Explore Our Product Catalog
Testing & Inspection
Manufacturing Space
Dedicated Employees
Years of Experience
Our Expertise is Your Advantage
Our products have flown on nearly every major airframe in commercial and military aviation.