TAKING INTO ACCOUNT THE REQUIREMENTS OF EUROPEAN CRITERIA FOR CERTIFICATION OF AIRWORTHINESS OF AIRCRAFT IN TECHNIQUES FOR TESTING THE FLIGHT-TECHNICAL CHARACTERISTICS OF HELICOPTERS release_p2acql4skbesjngvxjn7kjwhce

by Павло Kulba, V. Fedenko, Олег Чередников, Volodymyr Chupryna, O. Pankul

Published in Наукові праці Державного науково-дослідного інституту випробувань і сертифікації озброєння та військової техніки by State Scientific Research Institute of Armament and Military Equipment Testing and Certification.

2021   Issue 10, p108-116

Abstract

The article considers the problem of improving the methods of testing to determine the flight characteristics of helicopters, taking into account the requirements of European criteria for certification of airworthiness of military aircraft. To ensure interoperability with NATO standards, new standard methods for obtaining and evaluating the flight performance of helicopters have been developed. On the example of determining fuel consumption in assessing the range and duration of the flight considered the basic principles of development of advanced standard techniques.
 The test methods are based on the use of experimental planning theory using first- and second-order plans. Based on the mathematical theory of experimental planning, regression models of flight technical characteristics of helicopters are compiled and all coefficients of these models are determined.
 On the basis of the received regression models flight technical characteristics in all range of the used parameters of flights of helicopters of various categories, types and models are calculated. For example, the results of nomogram calculations for determining the kilometer fuel consumption of a helicopter while flying at different speeds in different altitude and climatic conditions are presented.
 The use of modeling provides increased reliability and accuracy in determining the flight characteristics of helicopters and significantly reduces the cost of testing.
 Developed advanced techniques, which are adapted to European standards, allow to cover all customer requirements, ie to determine and assess the flight characteristics of helicopters according to the requirements of both national and foreign customers.
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Date   2021-12-30
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