OPERATION OF PRECISION RNAV (P-RNAV) AIRBORNE EQUIPMENT IN SLOVENIAN TERMINAL AIRSPACE
This AIC replaces AIC A 05/2005
1 PURPOSE
1.1 The purpose of this Circular is to provide information concerning the introduction of Precision RNAV (P-RNAV) operations in the Slovenian Terminal Airspace.
2 BACKGROUND TO RNAV OPERATIONS IN TERMINAL AIRSPACE
2.1 The requirement to provide operational benefits in the terminal area consistent with those that were realised in the en-route environment through the implementation of Basic RNAV (B-RNAV), led to the adoption of the P-RNAV concept.
2.2 Supporting material and guidelines have been developed over the past few years and P-RNAV operations have already been introduced in some States. Additionally, a rapidly growing proportion of the ECAC aircraft fleet has the necessary airworthiness certification and has attained formal P-RNAV operational approval.
2.3 The use of P-RNAV in the terminal airspace of the Member States of ECAC will enable States to design RNAV terminal area procedures in a manner which provides benefits, i.e.: fuel savings achieved by optimum flight profiles, improved route alignment for the users and noise mitigation.
2.4 In addition, ECAC States represented at the EUROCONTROL Airspace and Navigation Team confirmed that, by the end of 2006, the terminal area procedures in their respective airspaces would be compliant with the provisions of the flight-safety driven RNAV Integrated Initiative.
2.5 Specifically, the allowable terminal area procedures are as follows:
- Precision RNAV (the preferred solution)
- A limited application of Basic RNAV (for non-complex procedures, designed to en-route principles and above MSA/RVA)
- Conventionally designed and designated procedures (however, the States committed to providing some access to all airports by means of conventional procedures until at least 2010).
In addition, no new non-compliant RNAV procedures are to be implemented.
3 TERMINAL AREA NAVIGATION APPLICATION PLANNING
3.1 P-RNAV procedures are intended to be introduced at the following locations of the Slovenian terminal airspace:
| Location |
Implementation Date |
Details |
| Ljubljana (LJLJ) |
End of 2008 |
- |
3.2 Aircraft operation in such P-RNAV terminal area procedures shall be approved in accordance with the relevant JAA Temporary Guidance Leaflet No. 10 (TGL 10 Rev. 1): "Airworthiness and Operational Approval for Precision RNAV Operations in Designated European Airspace", or equivalent.
3.3 Some means of accessing airspace/airports served by P-RNAV designated procedures will continue to be provided by the retention of a limited number of conventional procedures, supplemented by the use of radar vectors. This provision will allow non-approved aircraft to continue to operate routinely into and out of the affected airports. However, such non P-RNAV aircraft operations may incur delays and/or extended routings during peak periods.
3.4 Presently it is not intended to implement P-RNAV procedures at other locations of Slovenian terminal airspace.
4 CONTACT DETAILS
4.1 Further Information on policy, planning and implementation issues for RNAV can be obtained from:
| Post: |
Ministry of Transport of the Republic of Slovenia
Civil Aviation Directorate
Langusova 4
SI-1000 Ljubljana
SLOVENIA |
| Tel: |
+386 1 4788 000 |
| Fax: |
+386 1 4788 139 |
| Email: |
gp.mzp@gov.si
|
| URL: |
http://www.mpz.gov.si
|
4.2 Further information in respect to the certification and operational approval for RNAV operations should be addressed to:
- Joint Aviation Authorities (JAA).
4.3 Additional information on P-RNAV implementation will be made available through the EUROCONTROL AFN User Support Cell:
5 FUTURE DEVELOPMENTS
5.1 Increasing dependence upon RNAV operations is expected in the coming 10 years. To enable RNAV to become the only means of navigation and to support the longer term transition to a GNSS environment, it is essential that RNAV systems offer the same level of integrity and continuity of service as offered by existing navigation equipment (e.g. VOR). It is also essential that consistent functional performance can be obtained. To this end RNAV equipment industry standards have been published by EUROCAE and RTCA. (EUROCAE ED 75/RTCA Do 236 refers) and equipment meeting these standards is designated by industry as RNP-RNAV. Such equipment is capable of meeting the requirements of JAA TGL 10 (Rev.1).
5.2 Subject to an appropriate business case being developed, it is anticipated that a decision for an RNP mandate will be made by ECAC Member States by 2008. Implementation is not foreseen before 2015.
5.3 Operators equipped with RNAV Systems not capable of being certified to JAA TGL 10, and wishing to re-equip to enable operation on RNAV terminal area procedures, are recommended to take due account of the expected RNP requirements.
