ABSTRACT
The Cranfield Aircraft Handling Qualities Rating Scale (CAHQRS) is a multidimensional rating scale which utilises concepts and formats from two established scales (the NASA-TTX workload scale and the Cooper-Harper handling qualities scale). This paper gives an overview the development of the CAHQRS and the results from an initial series of validation trials using an engineering flight simulator. Two flight scenarios were used (a simulated in-flight refuelling task and an approach and landing task) with two aircraft control laws (a ‘classical’ flight control laws and a normal acceleration control law). The results established that the CAHQRS showed high positive correlations with the Cooper-Harper scale. However, the CAHQRS demonstrated greater diagnosticity.
