The layered safety concept, an integrated approach to the design and validation of air traffic management enhancements

The expected growth of air traffic asks for large enhancements in continental Air Traffic Management (ATM) to increase capacity. From a technology point of view a multitude of 'solutions' are available, such as introducing air-ground datalink, providing better support to the ATCo (Air Traffic Controller), introducing 4D air traffic control,...

Loads and damage tolerance for helicopters

This report reviews the applicability of damage tolerance concepts to helicopter structures. After a general discussion of the damage tolerance concept, attention is paid to the specific aspects of the helicopter loading environment. Examples are presented of damage tolerant design, both in metal and in composite structures. However, it is felt...