Advanced Power Technologies
Aerospace Daily said APTI's "core competencies include radio frequency and optical engineering, communications, networking and signal and data exploitation. It also works on microwave engineering, antenna design and development, optical sensors, plasma and shock physics, advanced ordnance systems, non-destructive testing, signal and image processing and digital control systems."
In 1995 E-Systems was itself acquired by Raytheon. In January 1998 APTI was de-merged in a management buy-out to become a private company.
- "BAE SYSTEMS Closes $27 million Deal For R&D Firm APTI". Defense Daily. PBI Media. 2003-03-28.
- Jonson, Nick (2003-04-18). "BAE Systems to acquire Advanced Power Technologies". Aerospace Daily. The McGraw-Hill Companies.
- "E-Systems buys ARCO Power Technologies". The New York Times. 1994-06-30.
- Noguchi, Yuki (2003-02-15). "BAE Agrees To Buy D.C. Defense Firm". The Washington Post.