Meggitt PLC is engaged in the design and manufacture of technology products and systems for the aerospace, defense and other specialist markets, including energy, medical, industrial, test and transportation. Aircraft Braking Systems is a supplier of aircraft wheels, brakes and brake control systems. Control Systems is a supplier of pneumatic, fluid control, thermal management and electro-mechanical equipment and sub-systems. Polymers & Composites is a specialist in fuel containment, engineered aircraft sealing solutions and technical polymers, electro- thermal ice protection and composite structures and assemblies. Sensing Systems is a provider of sensing and condition-monitoring solutions for rotating machinery and other assets. The Equipment Group division supplies aircraft fire protection and control systems, avionics, combat systems, live-fire and simulation training, and heat transfer equipment. On April 21, 2011, it acquired Pacific Scientific Aerospace from Danaher Corporation.