All modern commercial and military aircraft rely upon safety critical high integrity components and systems. It is essential to satisfy the environmental and mechanical demands placed on equipment such as landing gear and flight controls. Accuracy is essential when designing electrical interconnection systems. The selection of components and consideration of all possible risks is critical. Careful deliberation is required in the design process to handle temperature extremes, vibration, mechanical abuse and potential exposure to hydraulic oils and other fluids. Further significant considerations are the management of the weight and space demands.