Enclosures in an aircraft are the cases or cabinets used to protect critical electronic components Reduction in thermal loads protection against aircraft fluids protection from environment and shielding against EMI as well as static electricity are some of the essential functions performed by enclosures of an aircraft Over the period there has been a drastic transformation in the design material as well as the size of enclosures used in the aircraft industry The major players have been developing advanced lightweight enclosures in order to assist airframers in achieving their goal of developing fuel efficient aircraft