Helicopter flight dynamics: the theory and application of by G.D. Padfield

By G.D. Padfield

Flying features are rising as a prime requirement for destiny civil and army rotorcraft. The final 10 years have visible an important raise within the efforts to set up strong standards and in addition the know-how for hugely augmented flight regulate. The e-book presents a accomplished remedy of this

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Additional info for Helicopter flight dynamics: the theory and application of flying qualities and simulation modelling

Sample text

But flying quality is an elusive topic and it has two equally important facets that can easily get mixed up – the objective and the subjective. Only recently has enough effort been directed towards establishing a valid set of flying qualities criteria and test techniques for rotorcraft that has enabled both the subjective and objective aspects to be addressed in a complementary way. That effort has been orchestrated under the auspices of several different collaborative programmes to harness the use of flight and ground-based simulation facilities and key skills in North America and Europe.

We are concerned in this book with the piloting task and hence with only that function in the crew station; the crew have other, perhaps more important, mission-related duties, but the degree of spare capacity which the pilot has to share these will depend critically on his flying workload. The flying task can be visualized as a closed-loop feedback An Introductory Tour 23 Fig. 12 The pilot as sensor and motivator in the feedback loop system with the pilot as the key sensor and motivator (Fig. 12).

An MTE is a collection of individual manoeuvres and will have a definite start and finish and prescribed temporal and spatial performance requirements. , change in pitch or roll attitude. Objective flying qualities criteria are normally defined for, and tested with, manoeuvre samples; subjective pilot assessments are normally conducted by flying MTEs. The flying qualities requirements in the current US Army’s handling qualities requirements, ADS-33C (Ref. 1), are related directly to the required MTEs.

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