Unical Defense provides military aviation products and support solutions to original equipment manufacturers (OEMs), domestic and foreign governments, and maintenance, repair and overhaul (MRO) stations globally.

With our unwavering focus on the military support needs of our customers worldwide, we specialize in both fixed-wing and rotary-wing legacy aircraft and in developing creative solutions through full service support programs including obsolescence management.

Mercy Tan
Mercy TanPresident and Founder
Mercy has been one of the guiding hands behind Unical Aviation’s success for over 25 years. She began her work in the aerospace industry in 1985 at Science General Aerospace, later taking on executive management responsibilities at Spaircraft. Mercy is also Co-Founder of Unical Aviation where, since 1990, she has held the role of Chief Financial Officer. Mercy earned her Bachelor of Science in Business Administration before launching her career, graduating from California State University Los Angeles. Born and raised in Jakarta, West Java, Indonesia, Mercy moved to Los Angeles in 1982. She is a member of the National Association of Professional Women and the Continental Who’s Who.
Alice Zhang
Alice ZhangVice President
Alice started with Unical Aviation in 2007 as the key leader to the then-existing Military Division within Unical. With the 2015 transition of the Military Division to an independent Unical Defense, as Vice President Alice now leads teams across the full organization including sales and operations. Alice started her aviation career as Sales Director, Asia Pacific at Aero Precision where she gained considerable industry experience. Alice also taught as an Assistant Professor of geological exploration at her alma mater Zhejiang University (China) from which she graduated with a Bachelor of Geologist Science degree.
We are a military-focused business providing product support solutions to OEMs, governments
and Maintenance Repair Stations (MROs). Customers benefit from our expertise and understanding of military
missions and challenges with solutions that solve everyday challenges in the defense aerospace industry

Unical Defense is the premier provider in the defense aerospace industry.

By providing unrivaled value, we strive to be the partner of choice to our customers, suppliers, employees and financial stakeholders.

Full Spectrum Military Support

• Excellence – we strive for the highest level of quality in all aspects of what we do
• Respect – we treat each other with dignity and we value the ideas and perspective each individual brings
• Accountability – we take full ownership of our actions and their outcomes
• Service – we give exceptional care to those who need and depend upon us
• Innovation – we lead, support and encourage change and the creative process
• Leadership – we are catalysts for change and commit to design and build a better future

  • 2015

    Following several years of growth and success as the Military Division of Unical Aviation, Unical Defense is incorporated as a stand-alone business.

  • 2013

    Unical signs manufacturing and global distribution rights license with UTC Aerospace Systems for F-16 accessory drive gearbox and F-16 cooling turbine.

  • 2010

    Unical Aviation moves to 475,000 sq. ft. warehouse facility in City of Industry.

  • 2005

    Relocated to 127,000 sq ft headquarters in Irwindale, CA.

  • 1996

    Expanded headquarters to 80,000 sq ft.

  • 1994

    Relocated to 30,000 sq ft warehouse facility.

  • 1991

    Relocated to 4,000 sq ft headquarters after one year in business.

  • 1990

    Opened 400 sq ft office-warehouse in Baldwin Park, CA.

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Unical Aviation is the aviation industry’s go-to supplier for aircraft parts, components, engines, APU’s, managed repairs, lot purchases, aircraft acquisitions and related services and solutions. Visit unical.com for more information. Contact Unical Aviation at +1.909.348.1700 or email sales@unical.com.

Unical Aero is a U.S. based design, engineering and manufacturing company of non-OEM, FAA-approved aircraft parts and components for commercial and military applications worldwide. Visit unicalaero.com for more information.

Unical MRO, located at San Bernardino International Airport (SBD), provides aircraft parking, aircraft storage, off wing engine storage and teardown and demolition services for commercial and military platforms. Visit unicalmro.com for more information.

Unical 145 is an FAA 145 Repair station with repair capabilities for a variety of platforms including mechanical and hydraulic accessories, aero structures and landing gear overhauls. Contact Unical 145 at +1.909.378.7003.