AERODROMES - Helidecks

FOREWORDHistorical backgroundnautical Information Service, in addition to the obligation ofStates under Article 38 of the Convention.Standards and Recommended Practices for aerodromes werefirst adopted by the Council on 29 May 1951 pursuant to theprovisions of Article 37 of the Convention on InternationalCivil Aviation (Chicago 1944) and designated as Annex 14 tothe Convention. The document containing these Standards andRecommended Practices is now designated as Annex 14,Volume I to the Convention. In general, Volume I addressesplanning, design and operations of aerodromes but is notspecifically applicable to heliports.Promulgation of information. The establishment andwithdrawal of and changes to facilities, services and procedures affecting aircraft operations provided in accordancewith the Standards and Recommended Practices specified inthis Annex should be notified and take effect in accordancewith the provisions of Annex 15.Therefore, Volume II is being introduced as a means ofincluding provisions for heliports. Proposals forcomprehensive Standards and Recommended Practicescovering all aspects of heliport planning, design andoperations have been developed with the assistance of theANC Visual Aids Panel and the ANC Helicopter OperationsPanel.Status of Annex componentsAn Annex is made up of the following component parts, notall of which, however, are necessarily found in every Annex;they have the status indicated:1. — Material comprising the Annex proper:Table A shows the origin of the provisions in this volume,together with a list of the principal subjects involved and thedates on which the Annex was adopted by the Council, whenit became effective and when it became applicable.a) Standards and Recommended Practices adopted bythe Council under the provisions of the Convention.They are defined as teristics, configuration, matériel, performance,personnel or procedure, the uniform application ofwhich is recognized as necessary for the safety orregularity of international air navigation and to whichContracting States will conform in accordance withthe Convention; in the event of impossibility ofcompliance, notification to the Council iscompulsory under Article 38.Action by Contracting StatesNotification of differences. The attention of Contracting Statesis drawn to the obligation imposed by Article 38 of theConvention by which Contracting States are required to notifythe Organization of any differences between their nationalregulations and practices and the International Standardscontained in this Annex and any amendments thereto.Contracting States are invited to extend such notification toany differences from Recommended Practices contained inthis Annex and any amendments thereto, when the notificationof such differences is important for the safety of airnavigation. Further, Contracting States are invited to keep theOrganization currently informed of any differences which maysubsequently occur, or of the withdrawal of any differencespreviously notified. A specified request for notification ofdifferences will be sent to Contracting States immediately afterthe adoption of each amendment to this Annex.Recommended Practice: Any specification forphysical characteristics, configuration, matériel,performance, personnel or procedure, the uniformapplication of which is recognized as desirable in theinterest of safety, regularity or efficiency of international air navigation, and to which ContractingStates will endeavour to conform in accordance withthe Convention.b) Appendices comprising material grouped separatelyfor convenience but forming part of the Standardsand Recommended Practices adopted by theCouncil.The attention of States is also drawn to the provisions ofAnnex 15 related to the publication of differences betweentheir national regulations and practices and the related ICAOStandards and Recommended Practices through the AeroANNEX 14 — VOLUME IIc) Definitions of terms used in the Standards andRecommended Practices which are not self(vii)9/11/95

Annex 14 — AerodromesVolume IISelection of languageexplanatory in that they do not have accepteddictionary meanings. A definition does not haveindependent status but is an essential part of eachStandard and Recommended Practice in which theterm is used, since a change in the meaning of theterm would affect the specifications.d) Tables andStandard orreferred toStandard orsame status.This Annex has been adopted in five languages — English,Arabic, French, Russian and Spanish. Each Contracting Stateis requested to select one of those texts for the purpose ofnational implementation and for other effects provided for inthe Convention, either through direct use or throughtranslation into its own national language, and to notify theOrganization accordingly.Figures which add to or illustrate aRecommended Practice and which aretherein, form part of the associatedRecommended Practice and have theEditorial practices2.— Material approved by the Council for publication inassociation with the Standards and Recommended Practices:The following practice has been adhered to in order to indicateat a glance the status of each statement: Standards have beenprinted in light face roman; Recommended Practices havebeen printed in light face italics, the status being indicated bythe prefix Recommendation; Notes have been printed in lightface italics, the status being indicated by the prefix Note.a) Forewords comsprising historical and explanatorymaterial based on the action of the Council andincluding an explanation of the obligations of Stateswith regard to the application of the Standards andRecommended Practices ensuing from theConvention and the Resolution of Adoption.The following editorial practice has been followed in thewriting of specifications: for Standards the operative verb“shall” is used, and for Recommended Practices the operativeverb “should’’ is used.b) Introductions comprising explanatory materialintroduced at the beginning of parts, chapters orsections of the Annex to assist in the understandingof the application of the text.c) Notes included in the text, where appropriate, to givefactual information or references bearing on theStandards or Recommended Practices in question,but not constituting part of the Standards orRecommended Practices.The units of measurement used in this document are inaccordance with the International System of Units (SI) asspecified in Annex 5 to the Convention on International CivilAviation. Where Annex 5 permits the use of non-SI alternativeunits these are shown in parentheses following the basic units.Where two sets of units are quoted it must not be assumed thatthe pairs of values are equal and interchangeable. It may,however, be inferred that an equivalent level of safety isachieved when either set of units is used exclusively.d) Attachments comprising material supplementary tothe Standards and Recommended Practices, orincluded as a guide to their application.Any reference to a portion of this document, which isidentified by a number and/or title, includes all subdivisions ofthat portion.25/11/049/11/95No. 3(viii)

ForewordAnnex 14 — AerodromesTable A.Amendments to Annex 14, Volume rce(s)1st EditionFourth Meeting of theANC HelicopterOperations Panel;Eleventh Meeting of theANC Visual Aids Paneland SecretariatPhysical characteristics; obstacle limitation surfaces; visual aids for visualmeteorological conditions; rescue and fire fighting services.9 March 199030 July 199015 November 19901(2nd Edition)Twelfth Meeting of theANC Visual Aids Paneland SecretariatStandard geodetic reference system (WGS-84); frangibility; visual aids forhelicopter non-precision approaches; and visual alignment guidance system.13 March 199524 July 19959 November 19952Air NavigationCommissionAeronautical data bases and vertical component of the World GeodeticSystem — 1984 (WGS-84).21 March 199721 July 19976 November 19973Fourteenth Meeting ofthe ANC Visual AidsPanel and SecretariatDefinitions of calendar, datum, Gregorian calendar and obstacle; commonreference systems; heliport dimensions and related information; touchdownand lift-off area lighting system; Appendix 1 — Aeronautical Data QualityRequirements.27 February 200412 July 200425 November 2004(ix)25/11/049/11/95No. 3

INTERNATIONAL STANDARDSAND RECOMMENDED PRACTICESCHAPTER 1.GENERALCyclic redundancy check (CRC). A mathematical algorithmapplied to the digital expression of data that provides alevel of assurance against loss or alteration of data.Introductory Note.— Volume II of this Annex containsStandards and Recommended Practices (specifications) thatprescribe the physical characteristics and obstacle limitationsurfaces to be provided for at heliports, and certain facilitiesand technical services normally provided at a heliport. It isnot intended that these specifications limit or regulate theoperation of an aircraft.Data quality. A degree or level of confidence that the dataprovided meet the requirements of the data user in terms ofaccuracy, resolution and integrity.The specifications in this volume modify or complementthose in Volume I which, where appropriate, are also applicable to heliports. In other words, where a particular issue is asubject of a specification in this volume that specification willsupersede any other specification on that particular issue inVolume I. Throughout this volume the term “heliport” is used;however, it is intended that these specifications also apply toareas for the exclusive use of helicopters at an aerodromeprimarily meant for the use of aeroplanes.Datum. Any quantity or set of quantities that may serve as areference or basis for the calculation of other quantities(ISO 19104*).Declared distances — heliports.a) Take-off distance available (TODAH). The length of thefinal approach and take-off area plus the length of helicopter clearway (if provided) declared available andsuitable for helicopters to complete the take-off.It is to be noted that provisions for helicopter flightoperations are contained in Annex 6, Part III.b) Rejected take-off distance available (RTODAH). Thelength of the final approach and take-off area declaredavailable and suitable for performance class 1 helicopters to complete a rejected take-off.1.1 DefinitionsWhen the following terms are used in this volume, they havethe meanings given below. Annex 14, Volume I, containsdefinitions for those terms which are used in both volumes.c) Landing distance available (LDAH). The length of thefinal approach and take-off area plus any additional areadeclared available and suitable for helicopters tocomplete the landing manoeuvre from a defined height.Accuracy. A degree of conformance between the estimated ormeasured value and the true value.Elevated heliport. A heliport located on a raised structure onland.Note.— For measured positional data, the accuracy isnormally expressed in terms of a distance from a stated position within which there is a defined confidence of the trueposition falling.Ellipsoid height (Geodetic height). The height related to thereference ellipsoid, measured along the ellipsoidal outernormal through the point in question.Air taxiway. A defined path on the surface established for theair taxiing of helicopters.Calendar. Discrete temporal reference system that providesthe basis for defining temporal position to a resolution ofone day (ISO 19108*).Final approach and take-off area (FATO). A defined areaover which the final phase of the approach manoeuvre tohover or landing is completed and from which the take-offmanoeuvre is commenced. Where the FATO is to be usedby performance class 1 helicopters, the defined areaincludes the rejected ta

Heliport Manual (Doc 9261) Stolport Manual (Doc 9150) Manual on the ICAO Bird Strike Information System (IBIS) (Doc 9332) Manual of Surface Movement Guidance and Control Systems (SMGCS) (Doc 9476) ANNEX 14 — VOLUME II (vii) 9/11/95 Historical background Standards and Recommended Practices for aerodromes were