1、BRITISH STANDARD BS ISO 6968:2005 Aircraft ground equipment Lower deck loader Functional requirements ICS 49.100; 49.120 BS ISO 6968:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 1 March 2006 BSI 1 March 2006 ISBN 0 580 47883 1 Nationa
2、l foreword This British Standard reproduces verbatim ISO 6968:2005 and implements it as the UK national standard. It supersedes BSM81:1995 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ACE/57, Air cargo and ground support equipment, which has the re
3、sponsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A li
4、st of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspo
5、ndence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of
6、itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments
7、 issued since publication Amd. No. Date CommentsReference number ISO 6968:2005(E) INTERNATIONAL STANDARD ISO 6968 Third edition 2005-11-15 Aircraft ground equipment Lower deck loader Functional requirements Matriel au sol pour aronefs Chargeur de pont infrieur Exigences fonctionnelles BS ISO 6968:20
8、05iiBS ISO 6968:2005iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in
9、 a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commiss
10、ion (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical
11、committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall
12、not be held responsible for identifying any or all such patent rights. ISO 6968 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 9, Air cargo and ground equipment. This third edition cancels and replaces the second edition (ISO 6968:1994), which has been te
13、chnically revised. BS ISO 6968:2005 iv Introduction This International Standard specifies the functional requirements to be taken into account by manufacturers for the design of aircraft lower deck cargo container and pallet loaders. Throughout this International Standard, the minimum essential crit
14、eria are identified by use of the key word “shall”. Recommended criteria are identified by use of the key word “should” and, while not mandatory, are considered to be of primary importance in providing safe, economical and usable aircraft lower deck loaders. Deviation from recommended criteria shoul
15、d only occur after careful consideration and thorough service evaluation have shown alternative methods to provide an equivalent level of safety. 1 Aircraft ground equipment Lower deck loader Functional requirements 1 Scope This International Standard specifies the functional requirements for a self
16、-propelled loader capable of raising air cargo unit load devices (ULDs) with base dimensions and maximum mass as follows: Table 1 Base dimensions and maximum mass ULD type ISO 8097:2001 base size code Length mm (in) Width mm (in) Maximum gross mass kg (lb) A 3 175 (125) 2 235 (88) 6 804 (15 000) B 2
17、 743 (108) 2 235 (88) 4 536 (10 000) Pallets M 3 175 (125) 2 438 (96) 6 804 (15 000) Ka, c 1 562 (61,5) to 2 337 (92) 1 534 (60,4) 1 588 (3 500) Containers Lb 3 175 (125) to 4 724 (186) 1 534 (60,4) 3 175 (7 000) aHalf size container: base size 1 562 mm 1 534 mm (61,5 in 60,4 in). bFull size contain
18、er: base size 3 175 mm 1 534 mm (125 in 60,4 in). Smaller size containers such as sizes “P”, “Q”, and “N” can also be loaded. c For contoured containers having lengthwise overhangs from the ULD base edges, the value of the overhang may vary from 368 mm (14,5 in) to 775 mm (30,5 in) according to the
19、type of container. Examples of contoured ULD overhang values “X”: AKC: 775 mm (30,5 in), AKE: 445 mm (17,5 in). AKC and AKE are IATA ULD codes (refer to IATA ULD Technical Manual 40/1, see Bibliography). This International Standard does not intend to provide all the design requirements applicable fo
20、r aircraft lower deck loaders. Other requirements can be found in separate International Standards: ISO 4116 specifies the additional requirements applicable for conveying surfaces of those pieces of aircraft ground support equipment intended for handling and loading of baggage and cargo unit load d
21、evices; ISO 6966-1 and ISO 6966-2 specify, respectively, the general and safety-related requirements applicable to all aircraft ground support equipment. The requirements of this International Standard were determined based on generally recognized assumptions with regard to a) the normally intended
22、use of aircraft ground support equipment, when used on the ramp of international civil airports in order to handle, service or maintain civil transport aircraft; b) the environmental (surface, slope, weather, lighting, operating rules, staff qualification, etc.) conditions prevailing on the ramp are
23、a of the majority of international civil airports. It is assumed the manufacturers of aircraft lower deck loaders define in the relevant documentation the specifically intended conditions of use and environment for each item of equipment, and the purchasers systematically review their own specific c
24、onditions of use and environment in order to determine whether those stated are adequate, or negotiate with the manufacturer appropriate modifications to ensure they are. BS ISO 6968:20052 2 Normative references The following referenced documents are indispensable for the application of this documen
25、t. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4116, Air cargo equipment Ground equipment requirements for compatibility with aircraft unit load devices. ISO 6966-1, Aircraft groun
26、d equipment Basic requirements Part 1: General design requirements ISO 6966-2, Aircraft ground equipment Basic requirements Part 2: Safety requirements ISO 7000, Graphical symbols for use on equipment Index and synopsis ISO 8097:2001, Aircraft Minimum airworthiness requirements and test conditions f
27、or certified air cargo unit load devices ISO 11995:1996, Aircraft Stability requirements for loading and servicing equipment 3 Requirements 3.1 General 3.1.1 On an adequate chassis, the loader shall provide two platforms: a) a front platform capable of operating between 1 880 mm (74 in) and 3 550 mm
28、 (140 in), which is positioned at the applicable aircraft door and remains at this position during the loading/unloading operation; b) a main platform for up and down movement between 483 mm (19 in) and 3 550 mm (140 in). 3.1.2 The overall dimensions of the loader shall be kept to a minimum. 3.1.3 T
29、he overall height of the entire loader should not exceed 3 000 mm (118 in) when being driven. The height of the front platform (top of rollers) shall not exceed 1 880 mm (74 in) in the fully down position. 3.1.4 Both platforms shall be capable of supporting and conveying their maximum capacity simul
30、taneously. 3.1.5 When negotiating two ramps that intersect at 3 (5 %), the loader shall have adequate underneath clearance from any portion of the equipment to the ground. 3.1.6 The loader shall not interfere with the positioning of the aircraft tractor below the fuselage of the aircraft. 3.1.7 The
31、overall dimension of the front platform shall accept one 2 438 mm 3 125 mm (96 in 125 in) pallet lengthwise. 3.1.8 The length of the main platform shall be adequate to accept two half-size containers or one full-size ULD lengthwise. 3.1.9 The width of both platforms shall be adequate to accept a ULD
32、 with its 2 438 mm (96 in) dimension across the platforms. 3.1.10 At its right hand side, the forward end of the front platform shall have provisions to accommodate 1 780 mm (70 in) wide container hold doors. These provisions may either consist of a retractable extension to the front platform, or be
33、 met by a front platform of adjustable width. BS ISO 6968:2005 3 3.1.11 Several aircraft have flap track fairings which project from the trailing edge of the wing. If the loader, owing to its overall width, has to pass under the wing for approach to or removal from the rear lower deck compartment, t
34、he height of any portion likely to pass under the flap track fairings shall, for safety reasons, not exceed 2 800 mm (110 in). Installations, if any, extending beyond this limit shall be foldable or retractable. 3.1.12 The front platform shall be adjustable to changes in aircraft attitude with an ac
35、curacy of a) 2,0 in pitch; b) 6,4 mm (0,25 in) in height. 3.1.13 The front platform shall be designed not to interfere with the opening and closing of the aircraft doors. All component parts that may come into contact with the aircraft should be covered with a protective material, e.g. rubber “D” se
36、ction. (See SAE AIR 1558 in the Bibliography.) 3.1.14 The front platform shall be accessible from the ground at all times. 3.1.15 Platform safety supports for maintenance purposes shall be provided. 3.1.16 Guard rails shall be fitted to both sides of the front platform and shall have a minimum heigh
37、t of 1 000 mm (40 in). These rails shall be adjustable to close the gap between the loader and the aircraft. 3.1.17 The loaders design shall meet all applicable requirements of ISO 6966-1 and ISO 6966-2. 3.2 Guide rails and stops 3.2.1 Removable, fixed or retractable guide rails shall be provided on
38、 the front and main platforms to allow loading/unloading of the following ULD widths: 1 534 mm (60,4 in); 2 235 mm (88 in); 2 438 mm (96 in). 3.2.2 On the front platform, side guide rails shall be located along the whole length of both sides to guide long loads into the aircraft. The guide rails sha
39、ll be adjustable either manually or mechanically so that the load is aligned with the appropriate in-aircraft guides. 3.2.3 On the main platform, side guide rails shall be located 2 438 mm (96 in) 25 mm to 50 mm (1 in to 2 in) clearance apart along the full length of both sides of the main platform.
40、 The guide rails shall be able to operate independently, and shall automatically arise when the platform is raised above 559 mm (22 in) from the ground and shall remain in this position. When the main platform is being lowered and reaches the height of 1 520 mm (60 in) from the ground, it shall be p
41、ossible for the operator to control the retraction of the guide rails by continuous intentional action. Should this action cease, the guides shall automatically arise. For loaders with ULD rotation capability (see 4.5), the guide rails shall be able to be operated independently and/or simultaneously
42、, and shall automatically arise when the main platform starts moving upward and remain in this position. BS ISO 6968:20054 3.2.4 Automatic ULD stops shall be provided as follows: a) front platform: At the end adjacent to the main platform. These stops shall arise at the moment the main platform star
43、ts moving down and shall retract when the upcoming main platform is level with the front platform. b) main platform: At both ends. The rear stops shall automatically retract when the platform reaches a fully down position and arise when the platform rises. The stops at the end adjacent to the front
44、platform shall retract when the platform lines up with the front platform, and shall arise at the moment the main platform starts moving down and remain raised in the down position. Location of these stops shall take into account the container overhang given in Table 1. A minimum clearance of 50 mm
45、(2 in) plus “X” from the forward end of structures should be considered. 3.2.5 All fixed or removable guide rails shall have a minimum height of 100 mm (4 in). Retractable guide rails and stops shall have a height of not less than 50 mm (2 in). 3.3 Conveyor surface 3.3.1 The surface of the front pla
46、tform shall allow for adjusting lateral movement of the ULDs. 3.3.2 The loader shall be designed for powered end and side loading of ULDs. 3.3.3 The powered system shall be able to drive ULDs at a speed of approximately 0,3 m/s (60 ft/min). 3.3.4 It shall not be possible to transfer the loaded ULDs
47、from either platform when the stops are not properly operating. 3.3.5 The platforms conveying surfaces shall meet all applicable requirements of ISO 4116. 3.4 Platform operation and loading 3.4.1 It shall be possible to adjust the position of the ULD in a lateral direction on the front platform. 3.4
48、.2 Platform elevating systems shall be able to hold both platforms at maximum height with full specified continuous lift capacity with no noticeable height decrease for 30 min, with and without the engine running. 3.4.3 Both the front and main platform elevating mechanisms shall incorporate safety f
49、eatures to prevent sudden collapse in the event of system failure. 3.4.4 The operator shall be able to open and close aircraft doors from the loader. 3.4.5 The time taken for the main platform to reach maximum height from the lowered position and vice versa, i.e. one complete cycle, shall be less than 35 s. 3.4.6 It shall not be possible to alter the height of either platform while ULDs are bridging the plat
