A proposed definition for a pitch attitude target for the microburst escape maneuver

The Windshear Training Aid promulgated by the Federal Aviation Administration (FAA) defines the practical recovery maneuver following a microburst encounter as application of maximum thrust accompanied by rotation to an aircraft-specific target pitch attitude. In search of a simple method of determining this target, appropriate to a variety of aircraft types, a computer simulation was used to explore the suitability of a pitch target equal in numerical value to that of the angle of attack associated with stall warning. For the configurations and critical microburst shears simulated, this pitch target was demonstrated to be close to optimum

Application of data to piloted simulators

The application of a further developed analytical model and JAWS data to a piloted simulator is addressed. The Ames simulator provides a facility for the development of piloting procedures, and for the selection of training scenarios. The system is operational with the new wind shear models and comprehensive data output. The use of these models with the simulator is dicussed in detail

POWER OF PERSUASION

Sir Louis Blom-Cooper has had a distinguished career as QC, Chairman of Inquiries, advocate of Human Rights and campaigning author. This book is a collection of essays on topical and controversial issues. As one would expect of the author, he constantly expresses individual views and challenges orthodox opinion. The essays cover such diverse subjects as judicial review, Human Rights, the need for a new Homicide Act, trial by jury, criminal sentencing and penal policy, media freedom and regulation of the Press and include a number of diverting tales from his life at the Bar and pen-portraits of leading judges. It is only possible within the scope of this review to comment on some of the essays

BECKFORD AND BEYOND. SOME DEVELOPMENTS IN THE DOCTRINE OF ABUSE OF PROCESS

In recent years one of the largest growth areas of law in the criminal trial jurisdiction has been the development of the doctrine of abuse of process. As recently as the 1970s, submissions based on abuse of process were virtually unknown in the criminal courts. Now there is no competent defence advocate who does not come to court well armed with a quiver full of authorities ready to shoot down a prosecution as the opportunity arises. The underlying principle behind the doctrine of abuse of process is the concept that the court has a duty in criminal cases, to hold the balance between the interests of the state in maintaining order and the rights of individuals, and in exercising that duty the court retains a residual power to stay prosecutions which are vexatious or oppressive

Survival of a diffusing particle in an expanding cage

We consider a Brownian particle, with diffusion constant D, moving inside an expanding d-dimensional sphere whose surface is an absorbing boundary for the particle. The sphere has initial radius L_0 and expands at a constant rate c. We calculate the joint probability density, p(r,t|r_0), that the particle survives until time t, and is at a distance r from the centre of the sphere, given that it started at a distance r_0 from the centre.Comment: 5 page

Analysis of prehistoric brown earth paleosols under the podzol soils of Exmoor, UK

The deforestation of the upland landscapes in southwest Britain during prehistory is an established archaeological narrative, documenting human impacts on the environment and questioning the relationship of prehistoric societies to the upland landscapes they inhabited. Allied to the paleoenvironmental analyses of pollen sequences, which have provided the evidence of this change, there has been some investigation of prehistoric paleosols fossilized under principally Bronze Age archaeological monuments. These analyses identified brown earth soils that were originally associated with temperate deciduous woodland, on occasion showing evidence of human impacts such as tilling. However, the number of analyses of these paleosols has been limited. This study presents the first analysis of a series of pre‐podzol brown earth paleosols on Exmoor, UK, two of which are associated with colluvial soil erosion sediments before the formation of peat. This study indicates these paleosols are spatially extensive and have considerable potential to inform a more nuanced understanding of prehistoric human impacts on the upland environments of the early‐mid Holocene and assess human agency in driving ecosystem change