Burbo Bank TMZ (PIR) Post Implementation Review
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NIL Burbo Bank TMZ (PIR) Post Implementation Review Date: 27 October 2017 Author: Team Lead Revision: Issue 1 Osprey Ref: 7750 041 This document is of UK origin and has been prepared by Osprey Consulting Services Limited (Osprey) and, subject to any existing rights of third parties, Osprey is the owner of the copyright therein. The document is furnished in confidence under existing laws, regulations and agreements covering the release of data. This document contains proprietary information of Osprey and the contents or any part thereof shall not be copied or disclosed to any third party without Osprey’s prior written consent. © Osprey Consulting Services Limited 2017 1, The Bullpens, Manor Court, Herriard, Basingstoke, RG25 2PH 01420 520200 / [email protected] Registered in England and Wales under No: 06034579 NIL NIL Document Details Reference Description Document Title Burbo Bank TMZ (PIR) Post Implementation Review Document Ref 7750 041 Issue Issue 1 Date 27 October 2017 Client Name Ørsted (DONG Energy) Classification Nil Issue Amendment Date Issue 1 27.10.17 Approval Level Authority Name Author Osprey CSL Team Lead Reviewer Osprey CSL SME Burbo Bank TMZ (PIR) | Document Details ii 7750 041 | Issue 1 NIL NIL Executive Summary DONG Energy (Ørsted) has developed the extension to the Burbo Bank Offshore Wind Farm in Liverpool Bay. The Burbo Bank Extension Offshore Wind Farm covers an area of 40 kilometres (km)2, located approximately 7 km (3.8 Nautical Miles (NM)) north of the North Wirral coast near the village of Meols, 8.5 km (4.6 NM) from Crosby beach, and 12.2 km (6.6 NM) from the Point of Ayr on the Welsh coast. The Issue The presence of the Burbo Bank Extension Offshore Wind Farm would have impacted BAE Systems Warton (Warton) Aerodrome flying and Air Traffic Service (ATS) operations, with the most significant impact being the detection of the Wind Turbine Generators (WTGs) by the Warton Primary Surveillance Radar (PSR). Transponder Mandatory Zone (TMZ) Ørsted worked with Warton to identify a solution to mitigate the effects of the WTGs on the Warton PSR. Ørsted and Warton considered a variety of options to determine how best to meet the needs of Warton as well as other aviation and non-aviation stakeholders and considered that if mitigation involved a change to local airspace, then it was simpler to apply the change over the whole of the Burbo Bank Offshore Wind Farms. A Transponder Mandatory Zone (TMZ) is now established around the Burbo Bank Offshore Wind Farms up to the base of Controlled Airspace (CAS) and is active during the Warton Lower Airspace Radar Service (LARS) provision times. The establishment of the TMZ is one element of a 3-part Mitigation Package aimed at negating the impact of the clutter from the Burbo Bank Offshore Wind Farm WTGs upon the Warton PSR. The three parts are: Element 1: Establishment of a TMZ; Element 2: Authorisation to control Secondary Surveillance Radar (SSR)-alone and; Element 3: Suppression of WTG returns within the boundary of the Wind Farms. The Civil Aviation Authority (CAA) Safety and Airspace Regulation Group (SARG at Stirling) authorised Warton Air Traffic Control (ATC) to provide services using SSR-alone near the Burbo Bank TMZ. The CAA required a Post Implementation Review (PIR) which assesses the effectiveness and efficiency of the TMZ and Burbo Bank Offshore Wind Farms’ surrounding airspace through mitigating the effects of the WTGs on Warton flying and PSR-based ATS operations. Figure 1 below provides an illustration of the lateral extent of the Burbo Bank TMZ surrounding the Burbo Bank Offshore Wind Farms. Burbo Bank TMZ (PIR) | Executive Summary iii 7750 041 | Issue 1 NIL NIL Figure 1 Burbo Bank TMZ in red. The blue line outlines the Burbo Bank Offshore Wind Farm and the green line outlines its extension. Conclusion The objective of the TMZ is to maintain Warton Aerodrome flying and ATS operations near Burbo Bank despite the presence of the Burbo Bank offshore Wind Farms. This has been achieved. Burbo Bank TMZ (PIR) | Executive Summary iv 7750 041 | Issue 1 NIL NIL Table of Contents 1 Introduction ................................................................................................................................. 1 1.1 General ............................................................................................................................................................ 1 1.2 Purpose and Objectives ........................................................................................................................... 2 1.3 Consultation ................................................................................................................................................. 2 1.4 Related Documents.................................................................................................................................... 2 1.5 Document Structure .................................................................................................................................. 3 2 Burbo Bank TMZ Operations .................................................................................................. 4 2.1 Overview ........................................................................................................................................................ 4 2.2 General Flying Operations at Warton Aerodrome ....................................................................... 4 2.3 Burbo Bank TMZ ......................................................................................................................................... 4 2.4 TMZ with associated PSR Suppression Techniques..................................................................... 9 2.5 The TMZ Horizontal Buffer Zone ......................................................................................................... 9 3 Conclusions ................................................................................................................................. 10 3.1 TMZ Effect .................................................................................................................................................. 10 4 References .................................................................................................................................. 11 Table of Figures Figure 1 Burbo Bank TMZ in red. The blue line outlines the Burbo Bank Offshore Wind Farm and the green line outlines its extension. .............................................................................................................. iv Figure 2 Liverpool Bay and Morecambe Bay Airspace with the Warton Fillet outlined in Orange and the southern boundary of the Warton ARA outlined in Purple. Reproduced from CAA digital map data © Crown copyright 2014. UK IAIP ENR. ............................................................................................. 2 Figure 3 The Morecambe Bay and Liverpool Bay Airspace. The Burbo Bank TMZ, with section ceilings, is outlined in red. The ‘Warton Fillet’ is outlined in orange. Reproduced from CAA digital map data © Crown copyright 2017. UK IAIP ENR. ............................................................................... 6 Table of Tables Table 2 Table of References. ..................................................................................................................................... 11 Burbo Bank TMZ (PIR) | Table of Contents v 7750 041 | Issue 1 NIL NIL 1 Introduction The presence of the Burbo Bank Extension Offshore Wind Farm would have affected BAE Systems Warton Aerodrome flying and Air Traffic Service (ATS) operations, with the most significant impact being the detection of the Wind Turbine Generators (WTGs) as unwanted clutter by the Warton Primary Surveillance Radar (PSR). 1.1 General DONG Energy (Ørsted) has developed the extension to the Burbo Bank Offshore Wind Farm in Liverpool Bay. The Burbo Bank Extension Offshore Wind Farm covers an area of 40 kilometres (Km)2, located approximately 7 km (3.8 Nautical Miles (NM)) north of the North Wirral coast near the village of Meols, 8.5 km (4.6 NM) from Crosby beach, and 12.2 km (6.6 NM) from the Point of Ayr on the Welsh coast. The presence of the Burbo Bank Extension Offshore Wind Farm WTGs would have affected BAE Systems Warton (Warton) Aerodrome flying and Air Traffic Service (ATS) operations thereby requiring a change to the arrangements and procedures in the immediate airspace surrounding the wind farms. The degradation in the detection and tracking capabilities of the Warton PSR in the area of Burbo Bank Extension Offshore Wind Farm is of particular importance with regard to the flight test area near to the Offshore Wind Farm boundary. Burbo Bank lies adjacent to a piece of airspace known as the ‘Warton Fillet’ area, ordinarily Controlled Airspace (CAS) that is delegated to Warton on occasion to provide a sufficient volume of airspace for testing of advanced air systems. Unmitigated WTG clutter would lead to a reduced ATS from Warton Air Traffic Control (ATC) in the area of the Burbo Bank Offshore Wind Farm, effectively rendering the southern half of the ‘Warton Fillet’ unusable. Other airspace users requiring a service from Warton ATC would also experience disruption due to unnecessary route deviation. Burbo Bank TMZ (PIR) | Introduction 1 7750 041 | Issue 1 NIL NIL Figure 2 Liverpool Bay and Morecambe Bay Airspace with the Warton Fillet outlined in Orange and the southern boundary of the Warton ARA outlined in Purple.