1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA)
4、 Fax: 724-776-0790Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgARP1840REV.BAEROSPACERECOMMENDEDPRACTICEIssued 1986-01 Revised 2007-02 Superseding ARP1840A Aircraft Engine Transport Devices RATIONALEA five year review of ARP1840 resulted in major revisions to the original document.
5、 A definitions section was added and some renumbering of the paragraphs. Figures 2 and 3 were deleted from the document as these pallets are now included in NAS 3610/AS36100A.Document was restructured to be more general in nature so as to read as an ARP versus an AS. Metric measurements were added w
6、here they did not exist in previous version. Figure 1 was maintained as an example of an STC Type pallet. All remaining changes were either spelling or grammar. SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/ARP1840BSAE ARP1840
7、 Revision B - 2 -FOREWORDAircraft engines can be transported as outsize bulkloads restrained to the requirements of the applicable Weight and Balance Manual. This ARP1840, however, covers their transport as aircraft engine transport devices, as a unit being secured in the aircraft certified restrain
8、t system compatible with ULDs designed to meet loading requirements as set forth by the Airframers Weight and Balance manuals or STC. The following are definitions of abbreviations and terms used in this document: a. ENGINE TRANSPORT DEVICE: A rigid structure that is specifically designed to transpo
9、rt specific aircraft engines. b. PALLET (AIR CARGO): A unit load device consisting of a flat platform with flat undersurface of standard dimensions, on which goods are assembled and secured by a net before being loaded as a unit onto the aircraft handling and restraint system. c. RESTRAINT SYSTEM: E
10、quipment for supporting and restraining unit load devices in an aircraft against the ground/flight loads. It usually consists of such items as rollers, side guides and locks for securing unit load devices to the aircraft structure. It does not include unit load devices, barrier nets and tie-down str
11、aps d. SPLIT ENGINE PACKS: Aircraft engines which are partially disassembled, i.e., cowlings, fan section and/or tail cones removed.e. FULL ENGINE TRANSPORT: Engines that are transported fully assembled. f. UNIT LOAD DEVICE (ULD): Device for grouping, transferring and restraining cargo for transit.
12、It may consist of a pallet with a net or it may be a container. SAE ARP1840 Revision B - 3 -1. SCOPE 1.1 Types of Engine Transport Devices This document establishes two types of engine transport devices: Type A: For split engine pack transport (mainly lower deck) Type B: For full engine transport (m
13、ainly main deck) 1.1.1 Type A Will be used for shipping of split engine packs, e.g. Core-engine packs Fan-engine packs or additional equipment required on air cargo pallets of the below size, as applicable. 60.4 in x 125 in (1534 mm x 3175 mm) (Size Code L) 88 in x 125 in (2235 mm x 3175 mm) (Size C
14、ode A) 96 in x 125 in (2438 mm x 3175 mm) (Size Code M) The transport device shall be compatible with aircraft restraint systems designed for NAS 3610/AS 36100A type 2 ULDs or equivalent STC approved ones. 1.1.2 Type B Will be used for shipping full engine packs, generally referred to as “quick engi
15、ne change“ (QEC) kits, compatible with the allowable aircraft volume on integrated air cargo pallets/stands or air cargo pallets of the size 88 in x 125 in (2235 mm x 3175 mm) (Size Code A) 96 in x 125 in (2438 mm x 3175 mm) (Size Code M) 96 in x 196 in (2438 mm x 4978.4 mm) (Size Code R) 96 in x 23
16、8.5 in (2438 mm x 6057.9 mm) (Size Code G) and compatible with aircraft restraint systems designed for NAS3610/AS36100A type 2 ULDs or equivalent STC approved ones. The restraint of the engine transport device onto the pallet shall use appropriate tie down devices complying with any requirements of
17、aircraft Weight and Balance manuals, pallet manufacturers, or engine transport device manufacturers instructions. 1.1.3 For both types of engine transport devices the use of pallet nets is not recommended. 2. APPLICABLE DOCUMENTS The following publications form a part of this document to the extent
18、specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the text of this document takes prece
19、dence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. SAE ARP1840 Revision B - 4 -2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and
20、Canada) or 724-776-4970 (outside USA), www.sae.org.AS1130 Air and Air/Surface (Platform) Cargo Pallet ARP1334 Ground Equipment Requirements for Compatibility with Aircraft ULDs AS1491 Interline Air Cargo Pallets ARP1757 Symbology for Standardization of ULD Handling Devices AS36100A Air Cargo Unit Lo
21、ad Devices - Performance Requirements and Test Parameters 2.2 AIA Publications Available from Aerospace Industries Association of America, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3928, Tel: 703-358-1000, www.aia-aerospace.org.NAS 3610 Cargo Unit Load Devices - Specification for (Revis
22、ion 10) 2.3 IATA Publications Available from International Air Transport Association, Publications Assistant, 800 Place Victoria, P.O. Box 113, Montreal, Quebec H4Z 1M1, Canada, Tel: 1-514-874-0202, www.iata.org.IATA ULD Technical Manual 50/0, Requirements for Interlining of ULD IATA ULD Technical M
23、anual 50/1, Pallets for Class II Restraint Systems (NAS3610/AS36100A) IATA ULD Technical Manual 50/9, 16 for individual aircraft types and defined positions, these values may differ. 6.2.1 Type A TABLE 1 Forward Aft Side Up Down Aircraft 1.5 g 1.5 g 1.5 g 3.0 g 6.0 g Airport Groundhandling 3.0 g 3.0
24、 g 0.5 g 0.75 g 2.5 g 6.2.2 Type B TABLE 2 Forward Aft Side Up DownAircraft 1.5 g 1.5 g 1.5 g 3.0 g 6.0 g Airport Groundhandling 3.0 g 3.0 g 0.5 g 0.75 g 2.5 g SAE ARP1840 Revision B - 10 -6.3 Ground Transportation 6.3.1 Ground transportation requirements shall meet or exceed those outlined in the D
25、epartment of Transportation Motor Carriers Safety Regulation. Reference current issue, Part 393.100, Subpart I, “Protection Against Falling or Shifting Cargo“ - and/or national safety regulations as applicable. 6.3.2 Weight and measures of equipment for truck transport shall meet national traffic re
26、gulations. 7. ASSEMBLY AND DISASSEMBLY 7.1 Attach Fittings 7.1.1 Fittings shall be located so that they cannot damage or be damaged by aircraft hardware and/or adjacent units should they inadvertently be left open or become open in transit. 7.1.2 No special tool or equipment shall be required to sec
27、ure fittings. 7.1.3 Means should be provided to give visual and mechanical indication that fittings are positively secured. 7.1.4 Where possible, fittings and assembly components should be interchangeable. 7.1.5 Handles, straps and fittings shall withstand a minimum of 5000 lbf (2225 daN) pull in an
28、y direction. 7.1.6 When assembled or disassembled, there shall be no loose parts which can easily be lost. Small assembly components and parts shall be chain or metal cable attached. 7.2 Preparation for Shipment and Loading Assembly/disassembly personnel for preparation of transport device equipment
29、 and time required before loading into the A/C should be held to a minimum. Following shall be minimum objectives: 7.2.1 Type A (Lower Deck) a. maximum personnel - one (1) person b. maximum assembly/disassembly time - 5 minutes c. maximum equipment - one 11,000 lbf 48 in (4893 daN 1219 mm) load cent
30、er forklift or equivalent 7.2.2 Type B (Main Deck) a. maximum personnel - two (2) persons b. maximum assembly/disassembly time - 10 minutes c. maximum equipment - one 26,640 lbf 48 in (11,850 daN 1219 mm) load center forklift or equivalent 7.3 Provision for Return Haul See 7.1.6 and 10.4.1.4. SAE AR
31、P1840 Revision B - 11 -8. ENVIRONMENTAL CRITERIA 8.1 Operation Conditions Equipment should be capable of operating under the following conditions: 8.1.1 Temperature range of -54 to +71 C (-65 to +160 F). 8.1.2 Relative humidity of 100%. 8.1.3 Exposure to salt sea atmosphere. 8.1.4 Sand and dust part
32、icles, wind velocity of 60 mph (97 kmh). 8.1.5 Exposure to rain, snow and sleet. 8.1.6 All fluids normally contained on engines and on aircraft. 8.2 Materials and Processes 8.2.1 Materials and process selected should give consideration to extremely hard usage to which the unit will be subjected to p
33、rovide for a maximum service life. 8.2.2 All metal parts should be protected against corrosion. 8.2.3 All non metallic parts and/or joints which are liquid absorbent should be sealed and/or treated. 8.2.4 All materials shall be fire retardant in accordance with regulatory requirements. 8.2.5 All mat
34、erials and/or components shall be protected against deterioration or loss of strength in service and storage due to exposure, weathering, corrosion, galvanic action, or other causes where the type of material used requires such protection. 9. MARKING REQUIREMENTS The transport device shall be clearl
35、y and permanently marked in a location visible after the engine is installed. The letter size shall be large enough to insure good readability. Markings should include the following items: 1. Manufacturer, Part No. and Serial No. 2. Engine(s) that can be transported on the stand. 3. Applicable palle
36、t base by NAS 3610/AS36100A Code No. or manufacturers name and part No. if STC item. 4. The weight of the stand to the nearest pound and kilogram. 5. Maximum allowable gross weight of engine transport device. 6. Aircraft type to which the loadability of the total engine transport package is limited,
37、 if applicable; also aircraft configuration/load position, as per approved document. 7. Type of approval for the unit and issuing airworthiness authority. SAE ARP1840 Revision B - 12 -10. TESTING 10.1 Scope The tests are static in nature to minimize complexity and cost of required testing facilities
38、. As far as practical, applied static loads should take into account the combined static and dynamic loads anticipated in service. 10.1.1 It is intended that tests shall be non-destructive in nature and not result in damage unless ultimate load conditions are employed. 10.1.2 Test equipment and meth
39、ods of testing described are not meant to be restrictive. Alternate equivalent methods to accomplish the desired results may be employed. 10.1.3 In selected cases, tests may be repeated under ultimate load conditions when required for substantiation of analytical data. If this becomes necessary, the
40、 unit so tested may not be used in service until all component parts are inspected and those that exhibit permanent deformation are replaced. 10.2 Test Criteria 10.2.1 All deflections must be measured during testing. 10.2.2 Permanent deformation is permitted under ultimate load conditions, if ultima
41、te load testing is required. A unit design shall be considered acceptable if the unit exhibits permanent deformation but does not deform to the extent of discharging cargo or breaking free from the restraint system. All hardware exhibiting this type of deformation shall be replaced if the unit being
42、 tested is to be used for engine shipment. 10.3 Recommended Test Equipment 10.3.1.1 When restraint or movement on conveyor systems is evaluated, the test system shall be in accordance with the following.- Rows of rollers on approximately 20 in (508 mm) centers with each row composed of 1.5 in (38 mm
43、) diameter rollers 3 in (76.2 mm) long uncrowned with edge radius of 0.06 in (1.5 mm) spaced on 10 in (254 mm) centers, for longitudinal transport. Latches and guide rails of suitable strength shall be provided to guide the device along the conveyor and secure it at its restraint points. - Ball tran
44、sfer units for omnidirectional transport with 1 in (25.4 mm) diameter balls located on a 5 in x 5 in (127 mm x 127 mm) grid pattern. Pallet travel is in all directions across the grid. - Swivel casters with 1 in (25.4 mm) diameter wheels having a contact length of 2 in (50.8 mm) located on a 12 in x
45、 12 in (305 mm x 305 mm) grid pattern. Pallet travel is in all directions across the grid. 10.3.2 When conducting structural tests, sufficient payload to meet test load requirements shall be provided, or appropriate load producing devices may be used. SAE ARP1840 Revision B - 13 -10.4 Testing Requir
46、ements 10.4.1 Demonstration (at full capacity loads). 10.4.1.1 Assembly Demonstrate time elapsed, number of personnel, and equipment required. 10.4.1.2 Loading Demonstrate ability to load and prepare an engine for shipment. Time elapsed, number of personnel, and equipment required.10.4.1.3 Lifting D
47、emonstrate top lifting, bootstrap, and forklifting requirements and ability to control the load during: a. assembly b. placement of loaded units with pallet attached on conveyorized ramp equipment 10.4.1.4 Disassembly and preparation for return haul. Demonstrate ability to disassemble. 10.4.1.5 Over
48、-the-Road Transportation Demonstrate ability of unit to withstand normal over-the-road driving conditions using full size truck/semi trailer with air brakes and/or equivalent, within the limits as defined by the engine manufacturer: a. vibration b. severe pavement shock loads c. emergency stopping d
49、. sudden acceleration e. sharp turns at 35 mph (56 km/h) 10.4.1.6 Aircraft Loading Demonstrate the ability to move in and out of airplanes equipped with power drive cargo loading systems. Demonstrate the ability to properly lock and/or restrain the complete unit system in the aircraft without special tool and/or assistance. 10.5 Proof Load Test 10.5.1 The first article (transport device) designed and fabricated exclusively for air transport
