1、BSI Standards PublicationBS EN 4727:2015Aerospace series Standardized passenger seatweight informationBS EN 4727:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4727:2015.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/1, Int
2、ernational and European Aerospace Policy andProcesses.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British
3、 Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 84407 2ICS 49.095Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2015.Ame
4、ndments issued since publicationDate Text affectedBS EN 4727:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4727 July 2015 ICS 49.095 English Version Aerospace series - Standardized passenger seat weight information Srie arospatiale - Dfinition standardise du poids dun sige passager Luft-
5、und Raumfahrt - Standardisierte Sitzgewichtangaben fr Passagiersitze This European Standard was approved by CEN on 10 January 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national stan
6、dard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in a
7、ny other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Rep
8、ublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEA
9、N COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4727:2015 EBS EN 47
10、27:2015EN 4727:2015 (E) 2 Contents Page European foreword .3 1 Scope 4 2 Normative references 4 3 Abbreviations .4 4 Requirements .5 4.1 General 5 4.2 Calculated seat weight 5 4.2.1 Economy class (E/C) seats .5 4.2.2 First class (F/C) and Business class (B/C) seats .7 4.3 Actual seat weight empty 7
11、4.4 Maximum actual seat weight loaded7 4.5 Certified seat weight 7 4.6 Defined seat weight .8 5 Template of seat weight lists 8 BS EN 4727:2015EN 4727:2015 (E) 3 European foreword This document (EN 4727:2015) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardi
12、zation (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be
13、given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2016, and conflicting national standards shall be withdrawn at the latest by January 2016. Attention is drawn to the possibility that some of the elements of this document
14、may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austr
15、ia, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden
16、, Switzerland, Turkey and the United Kingdom. BS EN 4727:2015EN 4727:2015 (E) 4 1 Scope The weight for cabin equipment is an important topic in the aviation business. The cabin equipment weight has a direct impact on the payload of the aircraft, operation cost and revenue of the airlines. Due to the
17、 number of aircraft seats, seats are one of the major weight drivers in the cabin. At this time a lot of seat weights are used without any clear definition, e.g. allowable max. weight, certified weight, defined weight. For the definition of each customer specific cabin definition it is important to
18、get comparable seat weights. Aircraft seats are very different with regard to seat envelope dimensions and integrated features and options. For a weight calculation and product comparison it is very helpful to get comparable weight information based on a standard weight. The aim of this European Sta
19、ndard is to define a clear definition for the different weight information and a baseline for a seat weight calculation to get comparable seat weights for set brochures and marketing reasons. 2 Normative references The following documents, in whole or in part, are normatively referenced in this docu
20、ment and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. CS-25/Amendment 5, 5 September 2008, Certification Specification for Large Aeroplances 1)3 A
21、bbreviations For the purposes of this document, the following abbreviations apply. A/C Aircraft B/C Business class E/C Economy class F/C First class FAI First article inspection IAT in-armrest table IFE Inflight-entertainment IIL Installation Instructions and Limitations OEMs original equipment manu
22、facturer PCU Power control unit P/N Part number SEB Seat electronic box Std. Standard 1) Published by: European Aviation Safety Agency (EASA), Postfach 101253, D-50452 Koeln, Germany.BS EN 4727:2015EN 4727:2015 (E) 5 4 Requirements 4.1 General Aircraft seats are highly customized and the final seat
23、weight always depends on the specific customer requests. In order to get a clear weight definition and to cover all needs of the OEMs, airlines and seat suppliers, following seat weights needs to be clearly defined: a) Calculated seat weight; b) Actual seat weight empty; c) Maximum actual seat weigh
24、t loaded; d) Maximum certified seat weight; e) Defined seat weight. 4.2 Calculated seat weight 4.2.1 Economy class (E/C) seats The calculated seat weight is a theoretical seat weight, calculated based on a pre-defined seat definition. The calculated seat weight shall be used for marketing reasons in
25、 seat catalogues and seat brochures. The calculated weight according to this document ensures the availability of comparable weight information for the seat models offered on the market. The calculated seat weight shall be calculated for a Std. triple and front row triple seat with a seat width of 6
26、2 in (1 575 mm) measured from the most inboard to the most outboard point and installed on 2 straight seat legs. Following parts need to be considered: a) Primary structure: 1) 2 seat legs, including 2 front and 2 rear fittings; 2) Base members / seat track covers between front and rear fittings; 3)
27、 Baggage bar under all 3 seat places; 4) Beams (front and rear if 2 beams); 5) Seat spreaders; 6) Seat pans; 7) Seat belt attachments. b) Secondary structure: 1) 1 Fixed armrest structure outboard; 2) 2 Armrest structures for foldable centre armrest (For front row seats 2 fixed armrests with integra
28、ted in-armrest tables); 3) 1 Armrest structure for a foldable armrest aisle side for handicapped people (For front row seats 1 fixed armrest with integrated in-armrest table); 4) 3 Backrest structures; BS EN 4727:2015EN 4727:2015 (E) 6 5) 3 Recline mechanisms (if a seat is offered with no recline it
29、 needs to be indicated); 6) 1 Aisle side stewardess step; 7) All smaller structure items needed, e.g. gap closures. c) Seat cushion assemblies: Std. as offered by the seat supplier including fire blocking layer if needed. d) Backrest cushion assemblies: Std. as offered by the seat supplier including
30、 fire blocking layer if needed. e) Seat belts: 3 Std. seat belts, weight: 315 g / seat belt. f) Backrest tables: 3 standard backrest table kits this includes the table itself, table latch and any optional functions e.g. sliding mechanism and each related means of attachment to seat structure (if a s
31、eat table is offered with no sliding mechanism it shall be indicated). g) Literature pockets: 1 on each backrest, minimum size DIN A4. Detailed design up to seat supplier. h) Life vest pockets: 3 Life vest pockets, 1 under each armrest, designed for a life vest size of 240 mm 240 mm 90 mm and a weig
32、ht of 600 g / life vest. i) Trim and finish: 1) Seat cover fabric, uni colour / no pattern: 750 g/m2; 2) All plastic fairings for armrests need to be included; 3) Trolley guard strip (rub strips) on aisle side; 4) Armrest covers; 5) Backrest fairings. j) Trim strips (e.g. edge protection tape, velcr
33、o strips, ) All non-metallic components and materials shall fulfil the criteria of CS 25:09-2008. The weight impact of any offered option like ashtrays, cup holders, coat hooks, leg or footrest, floatation cushions, IFE or IFE provisions (like shroud or swivel mechanism, etc.) shall be indicated in
34、a separate table. IFE shall be considered with following baseline definition: k) IFE; l) 1 SEB; m) 3 PCUs; n) Needed in-seat cables. BS EN 4727:2015EN 4727:2015 (E) 7 As the specific weight of IFE equipment is varying, following classification in Table 1 shall be used for total IFE weight / seat row
35、: Table 1 Classification for total IFE weight / seat row Classification Total IFE weight / seat row Class A 500 g Class B 501 g to 1 000 g Class C 1 001 g to 1 500 g Class D 1 501 g to 2 000 g Class E 2 000 g 4.2.2 First class (F/C) and Business class (B/C) seats F/C and B/C seat concepts are very d
36、ifferent and often highly customized. The definition of the calculated seat weight is up to the seat supplier. The weight information shall be based on the same fabric, seat belt and life vest information as defined for the economy class seat. The rest of the detailed design is up to the seat suppli
37、er, but a clear list of considered features and options including IFE and monitor size is to be provided by the seat supplier with the calculated seat weight. 4.3 Actual seat weight empty The actual seat weight empty is the weight of each seat part number (P/N) (single, double, triple quadruple) as
38、designed according to the specific customer request including customer specific trim and finish and all accessories. e.g. IFE, seat actuation, reading lights etc. In general for a detailed weight list the component break down as listed in 4.2 can be used. Consider the seat as ready for aircraft inst
39、allation. The weight will be finally checked during first article inspection (FAI). The seat unit will be weighed empty as delivered to the OEM fully equipped with seat belts, cushions, dress covers, IFE but without any life vest and other weight of contents for any stowage compartments or literatur
40、e pockets. The actual weight empty needs to be shown in the seat delivery documentation like drawings and weight reports. 4.4 Maximum actual seat weight loaded The maximum actual seat weight loaded is the actual seat weight empty as defined in 4.3 plus. a) Maximum weight for content of literature po
41、ckets (Magazines); b) Maximum weight for life vests; c) Maximum weight for content of other stowage compartment. The maximum actual seat weight loaded shall be mentioned in addition to the actual seat weight empty on the seat supplier drawings. 4.5 Certified seat weight The certified seat weight is
42、the maximum actual seat weight loaded as defined in 4.4 plus. a) Weight for under-seat baggage of 9,1 kg (20 lb) per seat place; b) Weight for passengers 77,0 kg (170 lb) per seat place; c) Additional weight for any item of mass in order to cover any additional seat option with the seat certificatio
43、n; BS EN 4727:2015EN 4727:2015 (E) 8 The certified seat weight shall be listed in the certification documentation like static and dynamic test reports, installation instructions and limitations (IIL). 4.6 Defined seat weight The defined seat weight is to be negotiated between the seat supplier and t
44、he purchaser. If not otherwise agreed as guideline the defined seat weight is the actual seat weight empty with a tolerance of 3 %. 5 Template of seat weight lists The following attached seat weight template shall be used for weight information on seat brochures, weight reports, drawings, and qualif
45、ication / certification documents. NOTE The template is an Excel file attached to the PDF. This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. Br
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