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Design of novel aerial jet target

Zdobyslaw Jan Goraj (Department of Aircraft Design, Warsaw University of Technology, Warsaw, Poland)
Marek Malinowski (Department of Aircraft Design, Warsaw University of Technology, Warsaw, Poland)
Andrzej Frydrychewicz (Department of Aircraft Design, Warsaw University of Technology, Warsaw, Poland)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 3 July 2017

Abstract

Purpose

This paper aims to present and discuss the requirements for flying targets which sometimes are contradictory to each other and to perform a trade-off analysis before the design activity is started. It also aims to demonstrate conceptual and preliminary design processes using a practical example of PW-61 configuration and to show how results of experimental flight tests using a scaled flying target will be described and analyzed before manufacturing the full scale flying target.

Design/methodology/approach

An important part of the paper consists of the selection of tailplane configuration of the flying target UAV to protect some expensive on-board systems against serious damages and to obtain a sufficient dynamic stability, independently of the amount of the petrol in fuel tank. Inverted V-tail, U-tail and H-tail configurations were considered and compared both, theoretically and in-flight experiments.

Findings

Flight dynamics models and associated computational procedures were useful both in a preliminary design phase and during the final assessment of the configuration after flight tests. Selection of the tailplane configuration for the flying target UAV is very important to protect some expensive on-board systems against serious damages and to obtain a sufficient dynamic stability, independent of the amount of the petrol in fuel tank.

Practical implications

Flying targets should be speedy, maneuverable, cheap, easy in deployment and multi-recoverable (if not destroyed by live ammunition), must have relatively low take-off weight and an endurance of at least 1 h. This paper can be useful for proper selection of requirements and preliminary design parameters to make the design process more economically effective.

Originality/value

This paper presents very efficient methods of assessing the design parameters of flying targets, especially in an early stage of the design process. Stability computations are performed based on equations of motion and are supplemented by flight tests using the scaled flying models. It can be considered as an original, not typical, but very practical approach because it delivers lots of data in the early design stages at relatively low cost.

Keywords

Acknowledgements

Thanks to the project No O ROB 0,065 03 001 (grant agreement DOBR/0065/R/ID1/2012/03) entitled “Jet Air Targets with Pre-programmed Flight Path” in the Research Program supported by National Centre for Research and Development.

Citation

Goraj, Z.J., Malinowski, M. and Frydrychewicz, A. (2017), "Design of novel aerial jet target", Aircraft Engineering and Aerospace Technology, Vol. 89 No. 4, pp. 511-519. https://doi.org/10.1108/AEAT-10-2016-0174

Publisher

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Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited