The Quality of Being Able to Operate Safely – An Important Property of Safe Performance of a Air Mission / Bezpieczność – Ważna Właściowość Bezpiecznej Realizacji Misji Lotniczej

Prof. Dr hab. inż. Jerzy Lewitowicz 1
  • 1 Air Force Institute of Technology – Warsaw Poland

Abstract

The quality of being able to operate safely (S, in Polish - bezpieczność) and the quality of being hazard-prone (Z, in Polish - zagrożeniowość, zagrażalność), Z being the opposite of S, are important properties of any maritime vessel and/or aircraft, i.e. any engineering system/device (UT). The rates WS and WZ considered in terms of probability and remaining within the [0, 1] interval are measures of these properties. High value of WS enables the engineering system/device (UT) to be operated with the possibly maximum safety. The sum of WS and WZ is one (unity), whereas the product thereof satisfies the following condition: WS x WZ ≤ 1. The derived equation of indeterminacy points out to the fact that any increase in the value of WS by subsequent increments ΔWs, which makes the WS approach the limit of unity, demands ever greater amount of power and abilities, i.e. energy (expenses).

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  • [1] Lewitowicz J.: Podstawy eksploatacji statków powietrznych - statek powietrzny i element teorii. (Rudiments of Aircraft Operation and Maintenance - An aircraft and the Basics of Theory), Vol. 1., AFIT’s Publishing Office, Warszawa 2001.

  • [2] Lewitowicz J.: Uszkodzenia elementów i zespołów statków powietrznych. (Failures and Damages to Aircraft Components and Sub-systems). Konferencja ”Fizyka Uszkodzeń Eksploatacyjnych” (Conference on the Physics of Operation-related Damages), Lublin 2009.

  • [3] Smalko Z.: Studium terminologiczne inżynierii bezpieczeństwa transport. (A study on the Nomenclature of Transport Safety Engineering), Oficyna Wydawnicza Politechniki Wrocławskiej (Publishing Office of the Wrocław University of Technology), Wrocław 2010.

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