Capabilities and Limitations of Military Helicopter Wire Strike Protection Systems

Authors

  • Ondřej Zavila Vysoká škola báňská – TU Ostrava Fakulta bezpečnostního inženýrství (FBI) Katedra požární ochrany (030) Lumírova 13/630 700 30 Ostrava – Výškovice

DOI:

https://doi.org/10.3849/aimt.01933

Keywords:

helicopter, wire, cable, wire strike protection system (WSPS) , Cable Cutter System

Abstract

The aim of this article is to identify the functional limits of wire cutters, which are an integral part of passive protection systems designed to protect certain civil and military helicopters from damage caused by wire strikes. These limits are not well-known and are not explicitly stated by the manufacturers. The primary result of the study is an annotated specification of the functional capabilities and limitations of wire cutters mounted on helicopter structures in relation to the type of wire to be cut, flight speed and other circumstances. A further finding is that the stated capabilities and limitations of these technical systems may not be known and available to flight crews in different countries around the world for various reasons.

References

JetPhotos [online]. 2024 [viewed 2025-01-01]. Available from: https://www.jetphotos.com/

Aviation Safety Network [online]. 2024 [viewed 2025-01-01]. Available from: https://asn.flightsafety.org/wikibase/315548

Military Central Archives: Homepage [online]. 2010 [viewed 2025-01-01]. Available from: http://www.vuapraha.cz/

Military Central Archives: Administrative Archives of the Armed Forces of the Czech Republic [online]. 2010 [viewed 2025-01-01]. Available from: http://www.vuapraha.cz/archiv-ACR

AURA, S.R.O. Information System for Logistics of Ministry of Defense and the Army of the Czech Republic (ISL) [software]. [viewed 2025-01-01].

Classification and Method of Investigation of Aviation Emergency Occurrences [Regulation Let-1-5] (in Czech). Prague: Ministry of National Defense, 1960. NV-0031413/60.

Classification and Investigation of Aviation Emergency Occurrences [Regulation Let-1-5] (in Czech). Prague: Ministry of National Defense, 1962. T PVOSL-261-62.

Classification and Investigation of Aviation Accidents [Regulation Let-1-5] (in Czech). Prague: Ministry of National Defense, 1968. T MNO-40-62-68.

Classification, Investigation, Record-Keeping and Prevention of Aviation Accidents and Their Preconditions [Regulation Let-1-5] (in Czech). Prague: Ministry of National Defense, 1972. T MNO-40-176-71.

Classification, Investigation, Record-keeping and Prevention of Aviation Accidents and Their Preconditions [Regulation Let-1-5] (in Czech). Prague: Ministry of National Defense, 1974. T MNO-40-175-74.

Classification, Investigation, Record-keeping and Prevention of Aviation Accidents and Their Preconditions [Regulation Let-1-5] (in Czech). Prague: Ministry of National Defense, 1979.

Flight Safety [Regulation Let-1-5] (in Czech). Stará Boleslav: Federal Ministry of Defense, 1991.

Flight Safety [Regulation Let-1-5] (in Czech). Prague: Ministry of Defense, 2000.

Flight Safety [Regulation Všeobl-P-10] (in Czech). Prague: Ministry of Defense, 2006.

Flight Safety [Order of the Minister of Defense No. 13/2016 of the Journal] (in Czech). Prague: Ministry of Defense, 2016.

ZAVILA, O. Human Factors in Air Accidents of Military Helicopters of Czechoslovakia and the Czech Republic. Advances in Military Technology, 2023, 17(2), pp. 301-316. https://doi.org/10.3849/aimt.01750.

ZAVILA, O. Statistics of Military Helicopter Accidents in Czechoslovakia and the Czech Republic. Advances in Military Technology, 2023, 18(1), pp. 5-20. https://doi.org/10.3849/aimt.01770.

Energy Up Close [online], (in Czech). 2024 [viewed 2025-01-01]. Available from: https://www.svetenergie.cz/cz/energetika-zblizka

KREJČÍ, P. Exercises in Electrical Power Engineering (in Czech). Ostrava: VŠB – Technical University of Ostrava, 2003. ISBN 80-248-0471-9.

BOROŠKA, J., J. HULÍN and O. LESŇÁK. Steel Ropes. Edition of Metallurgical Literature (Alfa) (in Slovak). Bratislava: Alfa, 1982.

Safety Study of Wire Strike Devices Installed on Civil and Military Helicopters [Final Report]. 2008 [viewed 2025-01-01]. Available from: https://www.tc.faa.gov/its/worldpac/techrpt/ar0825.pdf

CASPIR - Canadian Aircraft Serials Personnel Information Resource: Bell CH‑136 Kiowa [online]. 2024 [viewed 2025-01-01]. Available from: https://caspir.warplane.com/asrc/acn/200000400/

Magellan Aerospace [online]. 2024 [viewed 2025-01-01]. Available from: https://magellan.aero/

CA1079182A Cable-Cutting Device [online]. 2024 [viewed 2025-01-01]. Available from: https://worldwide.espacenet.com/patent/search/family/004113096/publication/CA1079182A?q=pn%3DCA1079182

US4215833A Cable-Cutting Device [online]. 2024 [viewed 2025-01-01]. Available from: https://worldwide.espacenet.com/patent/search/family/004113096/publication/US4215833A?q=pn%3DUS4215833A

DART Aerospace [online]. 2024 [viewed 2025-01-01]. Available from: https://dartaerospace.com/

MD Helicopters [online]. 2024 [viewed 2025-01-01]. Available from: https://www.mdhelicopters.com/

Bell Textron Inc [online]. 2024 [viewed 2025-01-01]. Available from: https://www.bellflight.com/

AIRBUS: Helicopters [online]. 2024 [viewed 2025-01-01]. Available from: https://www.airbus.com/en/products-services/helicopters

BURROWS, L.T. Investigation of Helicopter Wire Strike Protection Concepts. Adelphi: Applied Technology Laboratory, US Army Research and Technology Laboratories (AVRADCOM), 1980.

BURROWS, L.T. Verification Testing of a UH-1 Wire Strike Protection System (WSPS). Adelphi: Applied Technology Laboratory, US Army Research and Technology Laboratories (AVRADCOM), 1982.

BURROWS, L.T. Verification Testing of an AH-1S Wire Strike Protection System (WSPS), Adelphi: Applied Technology Laboratory, US Army Research and Technology Laboratories (AVRADCOM), 1982.

CHANDRASEKARAN, R., A.P. PAYAN, K.B. COLLINS and D.N. MAVRIS. Helicopter Wire Strike Protection and Prevention Devices: Review, Challenges, and Recommendations. Aerospace Science and Technology, 2020, 98, 105665. https://doi.org/10.1016/j.ast.2019.105665.

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Published

19-01-2025

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Case study

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How to Cite

Zavila, O. (2025). Capabilities and Limitations of Military Helicopter Wire Strike Protection Systems. Advances in Military Technology, 20(1), 5-20. https://doi.org/10.3849/aimt.01933

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