Using 18th century storm-surge data from the Dutch Coast to improve the confidence in flood-risk estimates

For the design of cost-effective coastal defence a precise estimate is needed of the 1/10 000 per year storm surge. A more precise estimate requires more observations. Therefore, the three greatest storm surges that hit the northern part of the Holland Coast in the 18th century are reconstructed. The reconstructions are based on paintings,...

Historical development of collision risk models for en-route air traffic

This lecture reviews the model studies that were made with the object to reduce en-route separation standards. It also describes the basic principles of the Reich model used in most of these studies and of the Minimum Navigation Performance Specification (MNPS). Paper presented at the Princeton University Conference 155, "Safety Issues in Air...

Operational application of the Stalins method for maeasuring take-off and landing trajectories

The STALINS method calculates the trajectories from the outputs of an inertial sensing system. The principle of the method is described and a comparison is made with the results obtained from onboard cameras and a radio altimeter from 200 take-off and landing flight tests. The comparison shows that the STALINS method is at least as accurate as...

A method for measuring take-off sjid landing performance of aircraft, using an inertial sensing system

The STALINS method for measuring take-off and landing trajectories is briefly described and results of flight tests made in 1978-80 are discussed. The method now meets the requirements to which it was designed, and a few improvements in the hardware and software are being finalized. The method is expected to be ready for operational use in the...

Evaluation of a method for measuring take-off and landing performance of aircraft using ins

Results are given of flight tests of a system for take-off and laoding measurements in which the aircraft trajectory is mainly determined from accelerations measured by a stabilized inertial platform. Although a few minor uncertainties have not been solved yet, it is concluded that the method provides similar accuracies as the airborne-camera...

The estahlishment of safe separations between aircraft in flight

The paper starts with a review of the history of the use of models and statistical data for the assessment of separation standards. This work was mainly done by the ICAO Vertical Separation Panel, the North Atlantic Systems Planning Group and the ICAO Panel for the Review of the General Concept of Separation. After a brief description of the...

Oriënterende studie over air data computer systems

Na een overzicht van de formules die het verband aangeven tussen de grootheden die worden berekend in air data computers, worden drie moderne systemen kort besproken. Enige algemene opmerkingen en conclusies worden aan het slot gegeven. In een aanhangsel worden enige synchroschakelingen kort toegelicht.