Plessey Engineering and Components
Part of Plessey Co
1981 Formed as a new management company in Plessey; one member of the group was Birkby's Plastics[1]
1985 Activities included:[2]
- Plessey Aerospace
- Birkbys Plastics
- Signal Technology at Towcester
- Plessey Optoelectronics
- Plessey Semiconductors
- Plessey Three-Five
- Plessey Wound Products
1987/8 Aerospace and Engineering accounted for 8 per cent of Plessey's turnover. The principal activities were microwave materials for stealth applications, systems and components for civil and military aircraft, electrical power units for tanks and fighting vehicles, product support services, and plastics.
Microelectronics and Components accounted for 9 per cent of turnover . Major activities were silicon integrated circuits (bi-polar and metal-oxide silicon), gallium arsenide products and opto-electronics.[3]
By 1989 this area consisted of the following businesses:
- Plessey Semiconductors
- Plessey Three-Five Group
- Plessey Materials
- Plessey Aerospace
- Birkby's Plastics