About Hartzell Aviation
Engineered systems from Ignition to Exhaust.
Hartzell Aviation is a unified aerospace organization delivering engineered aircraft systems, certified MRO, and product lifecycle support for general aviation, business aviation, defense, and specialized aircraft.
Backed by Signia Aerospace, Hartzell Aviation integrates engineering, manufacturing, welding, distribution, and repair under a single operating structure to support critical aircraft engine systems.
Who is Hartzell Aviation?
Hartzell Aviation is the parent organization overseeing three operating divisions, each with a defined role and portfolio of established aviation brands.
Together, they cover firewall-forward systems, exhaust and welded structures, and certified repair and overhaul services.
Across all companies and brands, Hartzell Aviation operates with:
- Consistent quality standards
- Certified processes
- Long-term product support
We focus on doing the work right, supporting aircraft in service, and standing behind what we build.
Operating Divisions
Hartzell Engine Tech
Designs, manufactures, and supports aircraft engine accessories and heating systems for general aviation, military, and UAV platforms.
Focus areas:
- Ignition systems
- Electrical power generation
- Engine and airframe accessories
- Heating and environmental systems
Supports OEM production and in-service fleets with FAA-approved designs and ongoing engineering investment.
Brands under Hartzell Engine Tech:
- PowerUP Ignition
- E-MAG Air
- Sky-Tec
- Plane-Power
- AeroForce
- Janitrol Aero
- Lamar Technologies
Hartzell Aerospace Welding
Advanced aerospace welding and build-to-print manufacturing.
Focus areas:
- Exhaust systems and welded assemblies
- UAV, defense, eVTOL, and general aviation structures
- Prototype through production manufacturing
- Complex certified weldments
Brands under Hartzell Aerospace Welding:
- Acorn Welding
- AWI-AMI
- Seaplanes West
Hartzell Aviation MRO
(formerly Quality Aircraft Accessories)
Certified maintenance, repair, overhaul, and distribution.
Focus areas:
- FAA, EASA, and UK Part 145 repair stations
- Engine and electrical accessories overhaul
- Warranty and lifecycle support
- Distribution and fleet support
Serves as the lifecycle support arm for all Hartzell Aviation products.
How We Support the Aircraft Lifecycle
Hartzell Aviation designs, builds, repairs, and supports critical aircraft systems under one quality framework.
This structure:
- Reduces downtime
- Improves accountability
- Extends service life
- Simplifies support for operators and maintenance partners
From ignition and electrical power to exhaust systems and certified overhaul, Hartzell Aviation supports aircraft throughout their operational life.
Our Locations
Hartzell Aviation operates multiple certified facilities across the United States and Canada, supporting domestic and international customers.
All Hartzell Aviation communications and headquarters are based in Montgomery, Alabama.
Have a question?
Contact our team to learn more about products, services, or support.