Flysheet for Appendices - Amazon S3...Osprey Ref: 70830 001 This document is of UK origin and has been prepared by Osprey Consulting Services Limited (Osprey) and, subject to any existing

Appendix N

Telecommunications and Aviation

Appendix N1 – Consultation Appendix N2 – ESB Report

Appendix N3 – Aviation Briefing Appendix N4 – 2RN Protocol

APPENDIX N1

CONSULTATION

1

Paul O'Brien

From: [email protected]: 31 July 2014 11:43To: Paul O'BrienSubject: RE: Potential Locations for Wind Farm Sites

Hi Paul, I can confirm that the details below are an accurate record of our conversation and previous correspondence regarding Emlagh Wind Farm. Best regards Thomas Sheridan Radio Design Eircom Core Networks Eircom Ltd, Mervue Galway

:[email protected]

Phone:091 772552 Mobile:0851742191

APPENDIX N2

ESB REPORT

Emlagh, Co. Meath - Wind Turbine Analysis

ESB Head Office (B Block), 27 Fitzwilliam St Lower, Dublin 2 www.esb.ie

Project Reference Emlagh Wind Farm

Document Title Emlagh, Co. Meath - Wind Turbine Analysis

Rev. No.: 1.1

Prepared by: Jason Driver APPROVED: TITLE: K. McGeough

DATE: 17-7-14

Latest Revision Summary: Revised Fresnel zone

17/07/2014

Emlagh Co. Meath - Wind Turbine Analysis

Change History of Report Date New Rev Author Summary of Change 17/07/2014 1.1 J. Driver Amended carrier freq and antenna

diameter

17/07/2014

Emlagh Co. Meath - Wind Turbine Analysis

Document Summary

ESB Networks Telecom Services presents this document outlining the impact the current proposed locations of turbines stated under the Emlagh Wind Farm project will have on the ESB Networks Telecom Services Microwave Radio Network.

17/07/2014

Contents Page 1 Overview 1

2 Investigation 1

3 Conclusion 2

17/07/2014 i

1 Overview

Fehily Timoney & Company (FTC) contacted ESB Telecom Services outlining the project.

The coordinates of all turbines were submitted to ESB, from here, ESB Networks Telecom Services conducted the Wind Turbine analysis inline with our own internal standard practice.

2 Investigation

ESB Networks, Telecom Services, uses the industry standard exclusion zone method to determine the minimum distance along a link path in which a wind turbine can be placed.

Under the exclusion zone method, the 2rd Fresnel Zone of a radio link has been deemed to be the minimum distance from a radio link path in which a turbine can be placed.

However ESB requires a 3rd Fresnel Zone clearance due to the national criticality of data transiting radio links.

Using the industry recognised radio planning tool ADTI ICS Telecom ESB plotted the wind turbines against ESBs microwave radio links.

Three radio links where then determined to be within the impact area:

1 17/07/2014

As can be seen from the above screen capture, the left foremost and central links are impacted.

The blue circle around the turbine locations indicates the diameter of the turbine blades.

The central line of each radio link is the 1st Fresnel Zone and the outer two blue lines represent the exclusion zone

3 Conclusion

In order for Telecom Services to maintain operation of critical services in the area, suitable mitigation needs to be provided to ESB under which ESB will determine technical suitability.

Mitigation Option Cornasaus – Navan AO:

• Fibre could be run from Navan AO to Navan 110kV, see possible dotted line route above

• A radio link could be installed between Navan AO to Navan 110kV however this is dependant on LOS and structures available.

2 17/07/2014

Providing either of the above mitigation will result in the impact of turbine 19,20,21 and 26 being negated.

This then leaves only one remaining turbine, 16, which affects the Cornasaus – Woodlands link.

Mitigation Option Cornasaus –Woodland 400kV:

Cornasaus Woodland is a back bone link for ESB which provides communications for one of the largest and most critical substations in the country.

The only immediate and workable solution from ESB Networks Telecom Services at this point to this is to modify the turbine location a minimum of 35m South West of its current location.

The current location is outlined below:

3 17/07/2014

APPENDIX N3

AVIATION BRIEFING

COMMERCIAL IN CONFIDENCE

Date: 29th August 2014

Author: Natalie Hakes

Revision: Draft A

Osprey Ref: 70830 001

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 2014 The Forge, London Road, Bentley, Hampshire. GU10 5HY 01420 520200 / [email protected] Registered in England and Wales under No: 6034579


Castletownmoor Wind Farm: Aviation Briefing Note

Page 1 of 2

Emlagh Turbine ID

Castletownmoor Turbine ID ITM_X_Coor ITM_Y_Coor

1 n/a 675915 783799

2 n/a 675520 783618

3 n/a 675045 781948

4 n/a 675365 781282

5 n/a 675744 781187

6 n/a 676000 781570

7 n/a 676472 781457

8 n/a 678286 781419

9 1 677866 779127

10 2 678025 778542

11 3 677710 778173

12 4 677710 777711

13 5 678889 777706

14 6 680085 777657

15 7 680689 777565

16 8 681088 777686

17 9 681343 778124

18 10 681581 777504

19 11 681844 777995

20 12 682040 777580

21 13 682238 777156

22 14 679564 778374

23 15 679910 778888

24 16 679649 779431

25 17 679510 779890

26 18 681021 779314

27 19 680683 779678

28 20 681387 779621

29 21 682038 779912

30 22 682152 780334

31 23 682036 780834

32 24 682719 780694

33 25 682419 781150

34 n/a 686165 782846

35 n/a 686575 782695

36 n/a 685920 782511

37 n/a 686245 781857

38 n/a 687007 782205

39 n/a 687463 782516

40 n/a 687874 782058

41 n/a 687402 781903

42 n/a 686939 781618

Page 2 of 2

Emlagh Turbine ID

Castletownmoor Turbine ID ITM_X_Coor ITM_Y_Coor

43 n/a 686635 781221

44 n/a 688155 780570

45 n/a 687590 783687

46 n/a 688319 783995


Document Details

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Document Details

Reference Description

Document Title Emlagh Wind Farm Aviation Briefing Note

Document Ref 70830 001

Issue Issue 2

Date 1st September 2014

Client Name Fehily Timoney & Company (FTCO)

Classification Commercial in Confidence

Issue Amendment Date

Draft A First document draft 29th August 2014

Issue 1 First formal issue 29th August 2014

Issue 2 Incorporating Client

Comments 1st September 2014

Approval Level Authority Name

Author Osprey CSL Natalie Hakes

Internal Approval Osprey CSL Richie Hinchcliffe

Client 1 Approval FTCO Kieran Crowley

Client 2 Approval FTCO Paul O’Brien


Table of Contents

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Executive Summary

Fehily Timoney and Company (FTCO) is supporting its client, who is proposing the development of a forty-six wind turbine development known as the Emlagh Wind Farm. The proposed Wind Farm is located in County Meath, approximately 8 kilometres (km) northeast of the town of Kells and 14 km northwest of Slane Village. The maximum anticipated wind turbine tip height is 169 metres (m) above ground level (agl).

The potential exists for the proposed wind turbines to have an impact on Visual Flight Rule (VFR) air traffic in the region. FTCO is keen to identify and understand any potential impacts resulting from the proposed turbines construction concerning the operations of the Airfields at Navan, Ballyboy, Trim and Trevet.

Osprey has therefore undertaken analysis in terms of the Emlagh Wind Farm, with an operational evaluation conducted for the four identified Airfields. The results of the assessment are contained within this Briefing Note.

Assessment Conclusions

All four Airfields are located within Class G uncontrolled airspace, where terrain and obstacle avoidance is ultimately the pilot’s responsibility. Osprey has assessed the potential impacts of the proposed Emlagh Wind Farm on the published operating procedures and Irish Aviation Authority (IAA) regulatory safeguarding requirements for Navan, Ballyboy, Trim and Trevet Airfields. Analysis has revealed that the construction of the proposed Emlagh Wind Farm will not pose an unacceptable impact on the aviation operations conducted at the four specified Airfields.

Recommendations

As a result of the assessment, as presented in this Aviation Briefing Note, the following actions are recommended:

In accordance with the requirements set out in IAA publications S.I 215 Obstacles to Aircraft in Flight [Reference 1] and S.I 423 En-route Obstacles to Air Navigation [Reference 2], details of the proposed turbines should be made available and promulgated as appropriate in the Irish Integrated Aeronautical Information Package (IAIP) [Reference 3], as detailed within this document; and

In addition, to enable effective pilot familiarisation, it is suggested that details of the Emlagh Wind Farm turbine locations are provided to the operators of Navan and Ballyboy Airfields. Pilot notification will enable effective en-route flight planning in the ‘see-and-avoid’ Class G airspace environment.


Table of Contents

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Table of Contents

1 Introduction ................................................................................................................................. 5

1.1 General ............................................................................................................................................................ 5 1.2 Background ................................................................................................................................................... 5 1.3 Purpose and Scope..................................................................................................................................... 6 1.4 Aviation Regulations and Obstacle Guidance ................................................................................. 6 1.5 Document Structure .................................................................................................................................. 6

2 Emlagh Wind Farm .................................................................................................................... 8

2.1 Location .......................................................................................................................................................... 8 2.2 Turbine Parameters .................................................................................................................................. 8

3 Aviation Stakeholders ............................................................................................................ 10

3.1 Navan Airfield ........................................................................................................................................... 10 3.2 BallyBoy Airfield ...................................................................................................................................... 12 3.3 Trim Airfield .............................................................................................................................................. 13 3.4 Trevet Airfield .......................................................................................................................................... 13

4 Conclusions and Recommendations .................................................................................. 15

4.1 Overview ..................................................................................................................................................... 15 4.2 Conclusions ................................................................................................................................................ 15 4.3 Recommendations .................................................................................................................................. 15

5 References .................................................................................................................................. 16

Table of Figures

Figure 1: Proposed Location of the Emlagh Wind Farm. ................................................................................. 8

Table of Tables

Table 1: Emlagh Wind Turbine Coordinates ......................................................................................................... 9 Table 2 Table of References ...................................................................................................................................... 16


Introduction

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1 Introduction

This section introduces the background, purpose and scope of this Aviation Briefing Note.

1.1 General

Fehily Timoney and Company (FTCO) is supporting its client, who is proposing the development of a forty-six wind turbine development known as the Emlagh Wind Farm. The proposed Wind Farm is located in County Meath, with a maximum planned wind turbine tip height is 169 metres (m) above ground level (agl).

The potential exists for the proposed wind turbines to have an impact on Visual Flight Rule (VFR1) air traffic in the region. FTCO is keen to identify and understand any potential impacts resulting from the turbines construction, in particular concerning the operations of the following Aviation Stakeholders:

Navan Airfield;

Ballyboy Airfield;

Trim Airfield; and

Trevet Airfield.

As a result, Osprey has undertaken analysis in terms of the Emlagh Wind Farm; the results of the assessment are contained within this Briefing Note.

1.2 Background

The effects of wind turbines on aviation interests have been widely publicised but the primary concern is one of safety. There are innumerable subtleties in the actual effects but there are two dominant scenarios that lead to objection from aviation stakeholders:

1. Physical: Turbines can present a physical obstruction at or close to an aerodrome; and

2. Radar/Air Traffic Services: Turbine clutter appearing on radar display can affect the safe provision of air traffic services as it can mask unidentified aircraft from the air traffic controller and/or prevent him from accurately identifying aircraft under his control. In some cases, radar reflections from the turbines can affect the performance of the radar system itself.

1 Visual Flight Rules (VFR) comprise of IAA Rules of the Air Regulations [Reference 3]. VFR flight is permitted in Visual Meteorological Conditions (VMC) during daytime within Irish airspace (dependent on Airspace classification).


Introduction

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Within this Briefing Note, the effects of the proposed Emlagh wind turbines are considered in terms of potentially presenting a physical obstruction to aviation operations in the region.

1.3 Purpose and Scope

The purpose of this Briefing Note is to identify the potential impact of the proposed Emlagh Wind Farm, on the VFR operations of the four identified Airfield Aviation Stakeholders only. It is acknowledged that further Aerodromes and non-promulgated privately operated airstrips may be present in the region; however, any impact in terms of the Emlagh Wind Farm is beyond the scope of this assessment.

This Briefing Note considers the impact of the turbines once they are fully installed and does not consider any safety issues relating to the construction, installation or through-life support of the wind turbines.

1.4 Aviation Regulations and Obstacle Guidance

To assess the potential impact on aviation operations, Osprey uses a number of resources, including IAA Aeronautical Charts, the Irish IAIP [Reference 3] and our own databases that we have built up over the years. We typically begin with the consultation zones for various airfield types in accordance with the IAA guidance document Aerodrome Licensing Manual [Reference 4] and UK CAA publication CAP 738 Safeguarding of Aerodromes [Reference 5]. However, we allow a significant margin as we recognise that objections often come from outside these areas and can be, in some cases, valid and sustainable.

Osprey recommends that the developer considers the following information when assessing the safety of any installation, construction or maintenance phases with respect to aviation interests.

Tall slender constructions such as wind turbines, despite their size, can be difficult to see from the air in certain weather conditions. Guidance has been issued by the IAA in publications S.I 215 Obstacles to Aircraft in Flight [Reference 1] and S.I 423 En-route Obstacles to Air Navigation [Reference 2], which recommends that to facilitate safe visual flight, day or night, in the vicinity of obstacles:

Appropriate information about the construction and any associated lighting (where applicable) should be promulgated in the IAA IAIP [Reference 3] and applicable aviation publications, with notification at least 30 days prior to obstacle construction.

Data should include location, height, date of erection, date of removal and lighting type (none, infra-red or lighting brightness); and

Local aerodromes identified during consultation (typically with a 10 km radius) should be notified, particularly any police helicopter or air ambulance unit.

1.5 Document Structure

The report utilises the following structure:

Section 1 (this section) introduces the report; Section 2 provides details of the Emlagh Wind Farm;


Introduction

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Section 3 introduces Aviation Stakeholders within the region and assesses any Potential Impacts on Operations;

Section 4 details the Conclusions and Recommendations drawn from the analysis.

All references are listed at the end of the document.


Emlagh Wind Farm

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2 Emlagh Wind Farm

This section gives an overview and location details of the proposed Emlagh Wind Farm.

2.1 Location

The proposed site is situated on land approximately 8 km northeast of the town of Kells and 14 km northwest of Slane Village. The proposed location of the Emlagh Wind Farm is shown at Figure 1, with the wind turbine coordinates provided at Table 1 following.

UK Civil Aviation Authority (CAA), VFR Chart North, 500,000, March 2014. Figure 1: Proposed Location of the Emlagh Wind Farm.

The proposed Wind Farm is located within Class G uncontrolled airspace, beneath the Class C Dublin Controlled Airspace (CAS). Within Class G airspace, any aircraft can enter and transit the airspace without Air Traffic Control (ATC) clearance and subject only to a small set of mandatory rules, as stipulated in the IAA IAIP ENR Section 1.4-1 ATS Airspace Classification [Reference 3]. VFR aircraft operating in this area may be in receipt of an Air Traffic Service (ATS), with standard separation provided where possible, however pilots are ultimately responsible for their own terrain and obstacle clearance [Reference 3, ENR Section 1.4-1].

2.2 Turbine Parameters

The wind turbines at Emlagh Wind Farm are of a proposed maximum tip height of 169 m above ground level (agl). These parameters therefore have been used to conduct the operational analysis.


Emlagh Wind Farm

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Turbine Lat/Long Turbine Lat/Long

T1 53.79820545, -6.84766274 T24 53.75839708, -6.792120627

T2 53.79663734, -6.853703995 T25 53.76254916, -6.794107993

T3 53.78169813, -6.861304884 T26 53.75713497, -6.771348304

T4 53.77566441, -6.856625208 T27 53.76046087, -6.776372444

T5 53.77476131, -6.85089095 T28 53.75984202, -6.765726773

T6 53.77816726, -6.84691781 T29 53.76234832, -6.755764936

T7 53.77707495, -6.839778537 T30 53.76612475, -6.753933495

T8 53.77646694, -6.812274865 T31 53.77063273, -6.755556272

T9 53.75593474, -6.819224296 T32 53.76927165, -6.745234127

T10 53.75065875, -6.816967444 T33 53.77341487, -6.749669132

T11 53.74738743, -6.821837881 T34 53.78821463, -6.692422565

T12 53.74324239, -6.821947957 T35 53.78662403, -6.686199413

T13 53.74302182, -6.804083742 T36 53.78507218, -6.696190178

T14 53.74239283, -6.785961704 T37 53.77914963, -6.69144091

T15 53.74147585, -6.776839754 T38 53.78214754, -6.679780879

T16 53.7425039, -6.770763012 T39 53.78486495, -6.672776674

T17 53.7463947, -6.766781191 T40 53.78067645, -6.666674047

T18 53.74078777, -6.763336234 T41 53.77936679, -6.673883107

T19 53.74515582, -6.759220184 T42 53.77687971, -6.680975392

T20 53.74139781, -6.756362779 T43 53.77336865, -6.685699528

T21 53.73756399, -6.753477237 T44 53.76726804, -6.662832641

T22 53.74891682, -6.793687371 T45 53.79535874, -6.670515983

T23 53.7534793, -6.788298089 T46 53.7980054, -6.659366153

Table 1: Emlagh Wind Turbine Coordinates


Aviation Stakeholders: Potential Impacts

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3 Aviation Stakeholders

This section introduces Aviation Stakeholders within the region, their operating procedures and the potential impacts of the proposed Emlagh Wind Farm.

3.1 Navan Airfield

3.1.1 Overview

Navan Airfield is situated approximately 5 km northeast of Navan Town. The Airfield is privately owned and a Prior Permission Required (PPR) procedure is operated for visiting aircraft [Reference 6].

Navan Airfield comprises two unlicensed grass runways of orientation 09/27 and 07/25 and respective lengths of 500m and 530 m. The Airfield is located within uncontrolled Class G airspace, and operates a visual circuit pattern at 1,000 ft above mean sea level (amsl) to the north of the runways [Reference 6].

3.1.2 Potential Impact

Navan Airfield is located at a range of approximately 7.9 km, equating to 4.3 Nautical Mile2 (NM), southeast of the nearest proposed Emlagh wind turbine, T44. The position of the proposed Emlagh Wind Farm development in relation to Navan Airfield is given at Figure 1, Section 2.

Operating Procedures

Visual circuits are typically employed for the safe and expeditious flow of traffic near an aerodrome, where high concentrations of aircraft may be operating. There is some doubt as to whether the activities of Navan Airfield would regularly require the operation of a circuit. However, when a visual circuit is active, it is considered that Navan operates a typical 1 NM-range circuit (approximately 6,076 ft) laterally from the runway and parallel to the runway. As detailed at Section 2, pilots operating in Class G airspace are ultimately responsible for their own terrain and obstacle avoidance. VFR pilots are obliged to be aware of any obstacles and maintain appropriate lateral separation or vertical separation of 500 ft [Reference 3]; as such the Emlagh Wind Farm is not anticipated to impact on circuit operations.

Due to the range of the proposed development from the airfield, further consideration has been given to the runway direction, to determine any possible impact on aircraft undertaking a direct arrival or departure procedure. As a result of

2 Note that in the aviation industry, Air Traffic Controllers and pilots use feet (ft) and nautical miles (NM) for measurement in the air (altitude, range) but lengths on the ground e.g. runway lengths, are given in metres (m). Equivalent alternative units will be given only when it is appropriate to do so.



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the Airfield’s east-west runway orientation, it is considered that the development of the proposed turbines to the north of the runway will not impact on this procedure.

In addition, there is no formal requirement for aircraft to route near the proposed wind development. Should aircraft decide to operate in the Emlagh Wind Farm’s vicinity, for VFR flight in uncontrolled airspace, aircraft are required to be flown in accordance with the Visual Meteorological Conditions (VMC) minima appropriate to the classification of airspace. The Irish IAIP contains the IAA Rules of The Air Order 2004, stipulating the VMC requirements for aircraft to operate under VFR [Reference 3]. For VFR flight at and below 3,000 ft amsl within the Class G uncontrolled airspace, aircraft are required to remain clear of cloud and in sight of the surface at all times, with a minimum flight visibility of 5 km [Reference 3, Part 3 Rule 34]. This visibility minimum is reduced to 3 km for aircraft operating at an indicated airspeed of 140 knots (kts) or less and 1 km for helicopters operating below 1,000 ft. At the site’s proposed range and position, pilots operating in the vicinity should have no problem visually acquiring and avoiding the proposed Emlagh wind turbines, subject to pilot notification.

Regulatory Safeguarding

The IAA issues regulatory guidance on how aerodromes should manage operations in relation to obstacles and, where applicable; the licensing of an aerodrome depends on the extent to which these areas are free from current or new obstacles. The regulatory guidance states that certain areas of a licenced aerodrome’s local airspace must be defined to assess the significance of existing or proposed obstacles in its vicinity; these are Obstacle Limitation Surfaces (OLS). The OLS are determined according to the classification of the aerodrome and its runway length.

Although Navan Airfield is an unlicensed aerodrome and therefore not subject to this requirement, Aerodrome Operators are encouraged to safeguard their operation in a similar manner. For Navan Airfield, a runway length of 530 m (for runway 07/25), results in an assumed Aerodrome Reference Code of 1, should the guidance stipulated in the IAA Aerodrome Licensing Manual be applied [Reference 4]. In this instance, the maximum lateral extent of the OLS established for a Code 1 classification, is 2,700 m from the Navan Airfield main runway mid-point; there is no impact in terms of OLS safeguarding.

In addition, at a range of 7.9 km, the proposed development is located well beyond the UK CAA wind turbine development consultation zones, as stipulated in CAP 764 CAA Policy and Guidelines on Wind Turbines [Reference 7]. This guidance details a 3 km safeguarding zone for non-radar equipped unlicensed aerodromes, with a runway of less than 800 m.

Given the distance and relative position of the proposed turbines, it is Osprey’s opinion that there will be no impact on operations at Navan Airfield. To enable pilot familiarization, it is advised that, Navan Airfield are provided with the Emlagh Wind Farm location details. Consideration should also be given to displaying this information on a chart within the clubhouse / facilities at the Airfield and its provision to any visiting pilots through the existing PPR procedure.



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3.2 BallyBoy Airfield

3.2.1 Overview

Ballyboy Airfield is situated approximately 4 km northeast of Athboy, and hence is also referred to as Athboy Aerodrome. The Airfield owner and operator is based at BallyBoy House, and visiting aircraft are subject to a PPR procedure [Reference 7].

The Airfield comprises of a licensed grass runway of orientation 11/29 and length 600 m. Similarly to Navan Airfield, Ballyboy is located in Class G uncontrolled airspace. A standard overhead for a visual circuit pattern is detailed in the Airfield publications (Reference 7).


Ballyboy Airfield is situated approximately 12.3 km (6.6 NM) southwest of the nearest proposed Emlagh development turbine, located at position T12. The relative location of Ballyboy Airfield to the proposed Emlagh Wind Farm is given at Figure 1, Section 2.


As detailed at Section 3.1.2, visual circuits are typically flown within a 1 NM-range of the runway. VFR pilots are obliged to be aware of any obstacles and maintain appropriate lateral separation or vertical separation of 500 ft [Reference 3]. Therefore, due to the significant range of the proposed Emlagh wind turbines of 12.3 km from the Ballyboy runway mid-point, no impact on circuit operations is anticipated.

Similarly to Navan Airfield, there is no formal requirement for Ballyboy aircraft to route in the vicinity of the proposed wind development. However, should aircraft decide to operate in the Emglah Wind Farm’s vicinity, it is strongly suggested that as a result of VMC requirements and the significant range from the airfield, pilots should have no problem visually acquiring and safely avoiding the proposed Emlagh wind turbines.


Ballyboy Airfield has a licensed runway and as such, the safeguarded OLS detailed within the IAA Aerodrome Licensing Manual are applicable. For a runway length of 600 m, an Aerodrome Reference Code of 1 is assumed [Reference 4]. The maximum lateral extent of the OLS established for a Code 1 classification, is 2,700 m from the Ballyboy Airfield runway mid-point; there is no impact in terms of OLS safeguarding.

Further, the proposed Emlagh Wind Farm is located well beyond the CAP 764 stipulated safeguarding distance of 5 km, for a non-radar equipped licensed aerodrome with a runway of length less than 1,100 m [Reference 7].

As a result of the significant range of the proposed Emlagh wind turbines, it is Osprey’s opinion that there will be no impact on operations at Ballyboy Airfield. The proposed Wind Farm is located outside the IAA’s stipulated 10 km zone in terms of obstacle construction within the vicinity of a licensed aerodrome [Reference 1]. However, it is considered good practice to notify Ballyboy of the development’s location to enable pilot familiarisation.



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3.3 Trim Airfield

3.3.1 Overview

Trim Airfield is operated by Trim Flying Club, and supports regular General Aviation (GA) member and flight training activities, through the use of its two C-172 aircraft. The Airfield is situated approximately 4 km northeast of Trim Town.

Trim Airfield comprises of a licensed grass runway, of length of 580 m and orientation 10/28. As in the previous instances, Trim Airfield is located within uncontrolled Class G airspace. The Airfield operates a standard Left-Hand visual circuit pattern, with aircraft in the circuit operating at 800 ft above aerodrome level (aal) [Reference 6].


Trim Airfield is considered to be located at a significant range from the proposed Emlagh Wind Farm, situated approximately 18.2 km (9.7 NM) south of the nearest proposed Emlagh wind turbine, T21. The relative location of Trim Airfield to the proposed Emlagh Wind Farm, is shown at at Figure 1, Section 2.


As detailed at Section 3.1.2, visual circuits are typically flown within a 1 NM-range of the runway. As a result of the range of the proposed turbines from the airfield, no impact is expected on flight operations conducted at Trim Airfield. In addition, should Trim aircraft choose to fly within the vicinity of the turbines, as they continue en-route, as a result of the substantial distance from Trim Airfield, the required 500 ft VFR obstacle clearance from the wind turbines is achievable in line with VMC requirements.

Attention is drawn to the details provide at Section 1.4, in terms of appropriate notification and documentation of the 169 m wind turbines, to enable pilots to effectively plan to avoid the turbines when en-route.


As a result of the significant range of Trim Airfield from the proposed Emlagh Wind Farm, no impact is anticipated in terms of regulatory safeguarding.

3.4 Trevet Airfield

3.4.1 Overview

Trevet Airfield comprises of a licensed grass runway, located within Class G uncontrolled airspace below Dublin Class C CAS. The runway is of length 650 m and orientation 04/22, located approximately 3.3 km north of Dunshaughlin Town. A visual circuit pattern is established to the north of the runway, at 1,400 ft amsl [Reference 6]. Trevet Airfield is privately owned and operates a strict PPR procedure for visiting aircraft.


Trevet Airfield is located southeast of the proposed development, at a range of 26 km (14 NM) from the nearest Emlagh turbine, T21. The position of the proposed Emlagh Wind Farm development in relation to Trevet Airfield is given at Figure 1, Section 2.



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As a result of the significant range of the Airfield from the proposed development, no impact is anticipated in terms of operating procedures or regulatory safeguarding requirements.

As mentioned in Section 3.3.2, attention is drawn to the details provide at Section 1.4, in terms of appropriate notification and documentation of the 169 m wind turbines.


Conclusions and Recommendations

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4 Conclusions and Recommendations

This section details the conclusions and recommendations drawn from the full range of analysis.

4.1 Overview

It is understood that the proposed forty-six turbine Emlagh Wind Farm would be situated within 26 km of one unlicensed and three licensed Airfields. Osprey, on behalf of FTCO, has conducted an assessment to determine any potential effects on the aviation operations of the identified Airfield Aviation Stakeholders, posed by the development of the 169 m wind turbines.

4.2 Conclusions

Given the range and relative position of the proposed turbines, it is Osprey’s opinion following analysis in accordance with IAA S.I 215 [Reference 1], IAA S.I 423 [Reference 2], the IAA Aerodrome Licensing Manual [Reference 4] and UK CAA CAP 764 [Reference 7] documentation; there is no anticipated impact on the operations of the four identified Airfield Aviation Stakeholders.

4.3 Recommendations

As a result of the assessment, the following actions are recommended:

In accordance with the requirements set out in IAA publications S.I 215 [Reference 1] and S.I 423 [Reference 2], details of the proposed turbines should be made available and promulgated as appropriate in the Irish IAIP [Reference 3], as detailed at Section 1.4; and

In addition, to enable effective pilot familiarisation, it is suggested that details of the Emlagh Wind Farm turbine locations are provided to the operators of Navan and Ballyboy Airfields. Pilot notification will enable effective en-route flight planning in the ‘see-and-avoid’ Class G airspace environment.


References

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5 References

Ref Name Origin

1 Irish Aviation Authority (IAA) Statutory Instruments, S.I 215 of 2005; Obstacles to Aircraft in Flight Order

S.I No 215 2005 - Irish Aviation Authority (Obstacles to Aircraft in Flight)

IAA

2 Irish Aviation Authority (IAA) Statutory Instruments, S.I 423 of 1999; En-route Obstacles to Air Navigation

S.I No 423 1999 - Irish Aviation Authority (En-Route Obstacles)

IAA

3 Irish Integrated Aeronautical Information Publication (Irish IAIP Amended to AIRAC 14/08

Irish Integrated Aeronautical Information Publication

IAA

4 Irish Aviation Authority Aerodrome Licensing Manual Third Issue, incorporating amendments to January 2014.

IAA Aerodrome Licensing Manual

IAA

5 UK Civil Aviation Authority Civil Air Publication (CAP) 738 Safeguarding of Aerodromes Second Edition, 2006

UK CAA CAP 738

UK CAA

6 Pooleys Ireland VFR Flight Guide 2013, Available Online.

Pooleys

7 UK Civil Aviation Authority Civil Air Publication (CAP) 764 Policy and Guidelines on Wind Turbines Fifth Edition, June 2013

UK CAA CAP 764

UK CAA

Table 2 Table of References

http://www.irishstatutebook.ie/2005/en/si/0215.html

http://www.irishstatutebook.ie/2005/en/si/0215.html

https://www.iaa.ie/library_download.jsp?libraryID=289

https://www.iaa.ie/library_download.jsp?libraryID=289

http://www.iaa.ie/safe_reg/iaip/Frame1.htm

http://www.iaa.ie/safe_reg/iaip/Frame1.htm

https://www.iaa.ie/media/ALM002Jan20141.pdf

https://www.caa.co.uk/application.aspx?catid=33&pagetype=65&appid=11&mode=detail&id=576

https://www.caa.co.uk/application.aspx?catid=33&pagetype=65&appid=11&mode=detail&id=5609

APPENDIX N4

2RN PROTOCOL

Page 1

Appendix N5: Table with corresponding Turbine Numbers

Page 2

Appendix N5: Table with corresponding Turbine Numbers from Emlagh and Castletownmoor Wind Farms

Castletownmoor WF Turbine Numbers

Emlagh WF Turbine Numbers

1 9 2 10 3 11 4 12 5 13 6 14 7 15 8 16 9 1710 18 11 19 12 20 13 21 14 22 15 23 16 24 17 25 18 2619 27 20 28 21 29 22 30 23 31 24 32 25 33

Documents

Flysheet for Appendices - Amazon S3...Osprey Ref: 70830 001 This document is of UK origin and has been prepared by Osprey Consulting Services Limited (Osprey) and, subject to any existing