1、BRITISH STANDARD AEROSPACE SERIES BS M 69:1993 ISO 4117:1993 Air cargo equipment Air and air/land cargo pallets Specificationand testing UDC 621.869.82:629.7.045BSM69:1993 This British Standard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspublished under t
2、he authorityof the Standards Boardand comes into effect on 15August1993 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/57 Draft for comment 90/79736 DC ISBN 0 580 22217 9 Committees responsible for this British Standard The preparation of this Br
3、itish Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/57, upon which the following bodies were represented: Association of Webbing Load Restraint Equipment Manufacturers British Airways British Narrow Fabrics Association Civil Aviation Authority
4、(Airworthiness Division) Health and Safety Executive Ministry of Defence Society of British Aerospace Companies Ltd. Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No. Date CommentsBSM69:1993 BSI 01-2000 i Contents Page Committees responsible Inside front co
5、ver National foreword ii 1 Scope 1 2 Normative references 1 3 General characteristics 1 4 Dimensions and ratings 1 5 Design characteristics 1 6 Test methods 6 Annex A (informative) Bibliography 22 Figure 1 Pallet dimensions 2 Figure 2 End slots or blocks (both sides) 9 Figure 3 Side restraint slots
6、location 10 Figure 4 Areas to be left clear for aircraft latches interface 5 m (16 ft) pallet only 11 Figure 5 Side slot details 12 Figure 6 Location of bottom corner fitting (Type B pallet) 12 Figure 7 Flush-mounted corner fitting 13 Figure 8 Type B and C pallets 15 Figure 9 Configuration of fork-l
7、ift pocket 16 Figure 10 End restraint fitting and locations 17 Figure 11 Fore and aft restraint latch dimensions 18 Figure 12 Vertical restraint latch dimensions 18 Figure 13 Detail of side slots and strap slots, Type C pallet 19 Figure 14 Pallet corner Type C pallets 20 Figure 15 Example of a restr
8、aint for a 6 m (20 ft) surface-mode container on an adapter pallet 21 Table 1 Pallet dimensions 3 Table 2 Operational loads 4 Table 3 Ultimate loads 5 Table 4 Ground operational loads 5 List of references Inside back coverBSM69:1993 ii BSI 01-2000 National foreword This British Standard has been pre
9、pared under the direction of the Aerospace Standards Policy Committee. It is identical with ISO4117:1993 Air and air/land cargo pallets Specification and testing, published by the International Organization for Standardization (ISO). The Technical Committee has reviewed the provisions of ISO4115:198
10、7 and ISO4116:1986 to which normative reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. The text of ISO4117:1993 contained an introduction which reads as follows: “In this International Standard, the minimum essential criteria are expr
11、essed by the use of the word “shall”. Recommended criteria are expressed by the use of the word “should” and while not mandatory, are considered to be of primary importance in providing serviceable, economical and practical air transport pallets. Deviation from recommended criteria should occur only
12、 after careful consideration, extensive testing and thorough service evaluation have shown alternative methods to be satisfactory”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Com
13、pliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International Standard Corresponding British Standard ISO 7166:1985 BS 2C 8:1988 Specification for rail and stud configuration for aircraft passenger equipment and cargo restraint (Identical)
14、Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to22, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside f
15、ront cover.BSM69:1993 BSI 01-2000 1 1 Scope This International Standard specifies dimensional, structural and environmental requirements for2,44m(8ft)wide pallets to be used in freightversions of high-capacity fixed-wing aircraft,intended to be compatible with the2,44m 2,44m(8ft 8ft)cross-section co
16、ntainers described in ISO8323. Pallet nets to be used in conjunction with these pallets are described in ISO4115. This International Standard establishes three classes of pallet: Type A, air-only pallets; Type B, air/land pallets; Type C, adapter pallets. Pallets have a nominal width of2,44m(8ft)and
17、 nominal lengths of3m,5m,6m,9m and12m(10ft,16ft,20ft,30ftand40ft). Air-only pallets (Type A) will normally be handled on aircraft equivalent roller conveying systems and/or on similarly equipped ancillary ground handling devices. The 5m(16ft) pallet is to be used only with this type. Air/land pallet
18、s (Type B) are suitable for air/land handling and transport systems. Supplementary requirements for type B pallets are found in 5.5.1. Air-adapter pallets (Type C) are used to adapt2,44m 2,44m(8ft 8ft) surface-mode only containers (see ISO1496-1) for air transport. Supplementary requirements for the
19、 Type C version are found in 5.5.2. NOTE 1Use of the adapter pallet with surface-mode only2,44m 2,44m(8ft 8ft) containers may require uniform load distribution on the base cross members of these containers for carriage on certain aircraft. The aircraft approved weight and balance manual should be re
20、ferred to for loadability procedures and/or limitations. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are sub
21、ject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 4115:1987, A
22、ir cargo equipment Air/land pallet nets. ISO 4116:1986, Air cargo equipment Ground equipment requirements for compatibility with aircraft unit load devices. ISO 7166:1985, Aircraft Rail and stud configuration for passenger equipment and cargo restraint. United States Federal Test Method Standard,No.
23、406 1) . 3 General characteristics 3.1 Airworthiness Airworthiness requirements laid down by the applicable authorities shall be recognized for pallet design features. Ultimate load conditions (see Table 3) for pallets of nominal length3m,5m,6m,9m and12m(10ft,16ft,20ft,30ft,40ft) are in agreement wi
24、th ISO8097 for codes2F1P,2R1P,2G1P,2H1Pand2J1P. 3.2 Tare weight The tare weight of the pallet assembly shall be a minimum consistent with the requirements of this International Standard and within the limits of sound design practice. 4 Dimensions and ratings 4.1 Dimensions External dimensions of pal
25、lets shall be as specified in Table 1 and Figure 1. 4.2 Ratings The pallet shall be designed to restrain the following gross weights 2) : 3 m (10 ft) pallet: 5670kg (12 500 lb) 5 m (16 ft) pallet: 11 340 kg (25 000 lb) 6 m (20 ft) pallet: 11 340 kg (25 000 lb) 9 m (30 ft) pallet: 15 875 kg (35 000 l
26、b) 12 m (40 ft) pallet: 20 410 kg (45 000 lb) 5 Design characteristics 5.1 General 5.1.1 The materials and processes used in the construction should give consideration to the extremely hard usage to which the pallet will be subjected in order to provide for maximum service life. 1) This Standard may
27、 be obtained from Specification Sales, Building 197, Washington Navy Yard, General Services Administration, Washington DC 20407, USA. 2) The term “weight” is used throughout this International Standard, instead of the correct technical term “mass”, in order to conform to current commercial usage.BSM
28、69:1993 2 BSI 01-2000 5.1.2 The pallet should be rugged, minimizing maintenance and original costs. 5.1.3 Pallet construction shall be designed for strength and durability to withstand without permanent deformation the static and dynamic loads and impact shocks encountered in normal operational serv
29、ice. 5.1.4 All components of the pallets shall be protected against deterioration or loss of strength in service due to weathering, handling, corrosion or other causes where the type of material used requires such protection. All metal parts should be suitably protected against corrosion. All non-me
30、tallic materials which are liquid absorbent should be sealed or treated to prevent liquid absorption. 5.1.5 The pallet shall be free of any recesses or voids in which cargo (or other material) can be concealed. To meet agricultural requirements, all pallet surfaces should be as free as possible of r
31、ecesses and protuberances, where pests can hide, or where soil or other residues can accumulate. 5.1.6 All fasteners should be of aircraft standard and the number of sizes, styles and strengths shall be kept to a minimum. No slotted head screws shall be used. 5.1.7 All fittings and appurtenances sha
32、ll be within the maximum outside dimensions of the pallet. 5.1.8 The materials used shall be fire resistant, in accordance with appropriate regulatory requirements. 5.1.9 The pallet shall be so designed that it will withstand handling common to air/land freight terminal and ramp operations. 1)For th
33、icknesses, see Table 1 Figure 1 Pallet dimensionsBSM69:1993 BSI 01-2000 3 Table 1 Pallet dimensions 5.2 Construction 5.2.1 The pallet shall have a nominal thickness as specified in Table 1, measured from the lower surface. This thickness may be varied when the design employed results in a lighter an
34、d more durable structure capable of accepting uniform loadings of 1950kg/m 2 (400lb/ft 2 ) when supported on a conveying system (see 5.6.1). 5.2.2 The pallet shall be enclosed on all four sides by an edge member conforming to Figure 2, Figure 3 and Figure 5. The vertical surface of the pallet edge b
35、etween the restraint provisions shown in Figure 2 and Figure 5 (Section A-A, Type A and Type B pallets) shall be smooth and continuous to provide an automatically latching aircraft systems interface. The pallet bottom skin shall be enclosed by its edge member. The bottom surface shall be flush with
36、the edge member. The lower edge of the edge members shall be as shown in Figure 5. The pallet corners shall have a63,5mm 12,7mm(2,5in 0,5in) radius in the plane of the pallet. 5.2.3 The top and bottom surfaces of the pallet shall be parallel, flat and continuous. Over the entire length of the pallet
37、, the bottom surface shall be smooth and shall be a flat plane to within 1,6 mm (0,062 5 in). The waviness factor from crest to crest shall have a pitch of at least914mm(36in). No part of the structure shall protrude below the bottom surface. 5.2.4 The pallet lower surface shall comply with followin
38、g conditions. a) Ball load capability The pallet base surface or a representative portion thereof shall be subjected to a load of408kg(900lb) transmitted via a steel ball of25,4mm(1in) diameter without exhibiting permanent indentation in excess of0,51m0,02in). b) Ball caster load capability The base
39、 or a representative portion thereof shall be subjected to a uniformly distributed loadof 95,5kg(210lb) supported by four25,4mm(1in) diameter steel ball casters on a127mm 127mm(5in 5 in) grid pattern. The base shall be moved over the casters for a minimum of5000passes along a fixed line in each of t
40、wo directions,90(1,57 rad) to, and intersecting, each other. The length of the stroke shall be approximately305 mm (12 in). At conclusion, there shall be no evidence of deterioration of the base/ball caster interface surface. c) Abrasion resistance of plastic-coated or magnesium-base materials Three
41、 samples of the pallet base assembly material shall be subjected to the test specified in USFTMS,No.406, Method1091, or an equivalent method. The abrasion wheel shall be dressed every1000 cycles. An ACS-10 wheel with a load of500gshall be used for all tests. Overall length Overall width Nominal thic
42、kness Dimensions L W A B C D mm in mm in mm in mm in mm in mm in a 239,27 9,42 391,92 15,43 238 9,37 418,34 16,47 a 239,27 9,42 391,92 15,43 238 9,37 409,19 16,11 a 239,27 9,42 391,92 15,43 238 9,37 432,31 17,02 a 239,27 9,42 391,92 15,43 238 9,37 429,26 16,9 a 239,27 9,42 391,92 15,43 238 9,37 419,
43、1 16,5 a For Type A: 50,8 mm (2 in) For Type B: 139,7 mm (5,5 in) For Type C: 57,2 mm (2,25 in) 2 991 0 5 117 3/4 0 3/16 2 438 0 5 96 0 3/16 4 978 0 6 196 0 1/4 2 438 0 5 96 0 3/16 6 058 0 6 238 1/2 0 1/4 2 438 0 5 96 0 3/16 9 125 0 10 359 1/4 0 3/8 2 438 0 5 96 0 3/16 12 192 0 10 480 0 3/8 2 438 0
44、5 96 0 3/16BSM69:1993 4 BSI 01-2000 The average weight loss shall not exceed the following values: after1000 revolutions:0,015g after2000revolutions: an additional0,005g after5000revolutions: an additional0,03g, up to a total of 0,05 g. 5.2.5 The pallet shall be capable of traversing a2(0,035rad) cr
45、est or valley with no permanent deformation or damage. To meet this condition, pallets uniformly loaded to gross weight shall be capable of being supported at the cresting point through a roller contact of2032mm(80in) minimum width with a roller of38mm(1,5in) maximum diameter. 5.2.6 Aircraft restrai
46、nt provisions as shown in Figure 2, Figure 3 and Figure 5 shall be provided. 5.2.7 Net attachments shall be compatible with the configuration shown in Figure 1. As an option, a continuous seat track in accordance withISO7166 may be incorporated in the pallet upper surface. 5.2.8 The minimum pallet s
47、tiffness shall be225kNm 2per metre(2000000lbfin 2 per inch) of width or length for all pallet sizes. 5.3 Design loads 5.3.1 General The centre of gravity of the load shall be assumed to vary by 10% of the pallet width measured from the centre-line; 5% of the pallet length measured from the centre-li
48、ne; 1219mm(48in) measured vertically from the pallet bottom surface. To achieve the above asymmetric conditions, the cargo density shall be assumed to vary linearly. 5.3.2 Operational loads Taking a design case where the pallet is supported on a roller system in accordance with5.6.1, the pallet shal
49、l be designed for the operational load as given in Table 2 with the cargo centre of gravity located at any point in the range specified in5.3.1, and under these loads it shall not exhibit any permanent deformation. Pallets over3m(10ft) in length shall be designed for a gross weight of6760kg(14900lb) in any3m(10ft) section of the pallet. 5.3.3 Ultimate loads When the roller system is in accordance with5.6.1, the pallet shall be designed for the ultimate load as given i
