1、INCH-POUND MIL-PRF-5806H 21 October 2002 SUPERSEDING MIL-PRF-5806G 15 September 1997 PERFORMANCE SPECIFICATION BOX, SHIPPING AND STORAGE, HELICOPTER BLADE This specification is approved for use by all departments and agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification cover
2、s requirements for one type of reusable shipping and storage box for helicopter main rotor blades. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of thi
3、s specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not th
4、ey are listed. 2.2 Government documents. AMSC N/A FSC 8145 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S.
5、Army Aviation and Missile Command, ATTN: AMSAM-RD-SE-TD-ST, Redstone Arsenal, AL 35898-5000, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitt
6、ed without license from IHS-,-,-MIL-PRF-5806H 22.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue o
7、f the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS Military MIL-C-53072 Chemical Agent Resistant Coating (CARC) Application Procedures STANDARDS Federal FED-STD 101 Test Procedures for Packaging Materials Milit
8、ary MIL-STD-209 Slinging and Tiedown Provisions for Lifting and Tying Down Military Equipment (Unless otherwise indicated, copies of the above specifications and standards are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 N
9、on-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues
10、 of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) AMS 2470 Anodic Treatment of Aluminum Alloys, Chromic Acid Process (DOD adopted) AMS 2471 Anodic Treatment of Aluminum Alloys, Sulfuric Acid Process, Undy
11、ed Coating (DOD adopted) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-5806H 3AMS 2472 Anodic Treatment of Aluminum Alloys, Sulfuric Acid Process, Dyed Coating (DOD adopted) AMS 2474 Chemical Treatment for Aluminum Alloys, Low Electrical Re
12、sistance Coating (Copies of SAE standards may be obtained from SAE, Inc., 400 Commonwealth Drive, Warrendale, PA 15096-0001.) AMERICAN WOOD PRESERVERS ASSOCIATION AWPA C2 Lumber, Timbers, Bridge Ties, and Mine Ties (Copies of AWPA documents may be obtained from AWPA, P.O. Box 286, Woodstock, MD 2116
13、3-0286.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. R
14、EQUIREMENTS 3.1 First article. When specified, a sample shall be subjected to first article inspection in accordance with 4.2 (see 6.2). 3.2 Materials. Unless otherwise specified, the contractor is free to choose any materials in the manufacture of the containers. However, all provisions of this spe
15、cification must be met, regardless of the choice of materials. 3.2.1 Prohibited materials. Magnesium and cadmium shall be prohibited. Also, polyethylene and polypropylene shall be prohibited from use in the container shell (see 4.4.1). 3.2.2 Cushioning material. Material used to cushion the blades s
16、hall not have any deleterious effect on the blades (see 4.4.2). 3.2.3 Metals. Metal components shall be corrosion resistant or suitably processed to resist corrosion. To prevent galvanic corrosion, there shall be no contact between the blade and any dissimilar metal component used in the storage box
17、, including any blade mounting provision (see 4.4.3). 3.2.4 Toxic chemicals, hazardous substances, and ozone depleting chemicals (ODCs). The use of toxic chemicals, hazardous substances, and ODCs shall be avoided, whenever feasible. Provided by IHSNot for ResaleNo reproduction or networking permitte
18、d without license from IHS-,-,-MIL-PRF-5806H 43.3 Design and Construction. The box shall be adaptable to as many different model helicopter rotor blades as practicable. The blade models shall be specified by the procuring activity (see 6.6). 3.3.1 Blade installation/removal. Each box shall include c
19、omplete interior supports and attachments to receive and secure the models or type of blades prescribed by the procuring activity. Unless otherwise specified, each container shall be accompanied by two sets of installation instructions. One set of instructions shall be placed in the record receptacl
20、e, and the second set of instructions shall be bonded to the inner wall of the bottom half of the container. The instructions shall be positioned for easy viewing, and be provided with waterproof protection. Instructions shall include at a minimum: a. A step-by-step procedure for installing and remo
21、ving the blade. b. An isometric illustration of the blade hub mount, where applicable, with blade mounting hardware. c. Torque values for blade mounting hardware, where applicable. See 4.4.4 for verification. 3.3.1.1 Blade mounting provision. If the design includes a blade mounting provision, it sha
22、ll allow the blades to be installed and removed by hand or using common hand tools. It shall take no more than ten minutes for each operation. The removable portion of the provision shall be permanently affixed in some fashion to the box (see 4.4.4). 3.3.2 Size. The box shall provide a minimum of 2
23、inches clearance between the blade and the interior of the box (see 4.4.5). 3.3.3 Weight. The box shall be of minimal weight consistent with the requirements of this specification. The box with all components, including the blade mounting provision (if one is part of the design), shall not exceed fi
24、ve pounds per cubic foot (see 4.4.6). 3.3.4 Center of balance. The container and its components shall be designed so that the center of balance marking shall be an accurate indication of the true center of balance of the box when loaded and prepared for shipment. When blades of different lengths are
25、 shipped in the same box, the center of balance markings shall be an average for the different blades. The box shall be stable when lifted by forklift (see 4.4.7). 3.3.5 Blade protection. The box shall be designed to protect the rotor blade against damage from shock, vibration, and deterioration nor
26、mally encountered during storage and shipment. Suitable means shall be provided to prevent damage to the blade resulting from longitudinal, lateral, or vertical movement of the blade within the box. The maximum allowable “g” forces imposed on Provided by IHSNot for ResaleNo reproduction or networkin
27、g permitted without license from IHS-,-,-MIL-PRF-5806H 5the blade during testing shall not exceed the fragility limits specified by the blade manufacturer (see 6.2). See 4.4.8 for verification provisions. 3.3.6 Fasteners. Quick latching non-removable fasteners shall be used to secure the top of the
28、box. At most, only common hand tools shall be required to open and close the box (see 4.4.9). 3.3.7 Rodent protection. When the box is closed and ready for shipment, any openings in the exterior shall be covered with corrosion-resistant material that will prevent rodents from entering the box (see 4
29、.4.10). 3.3.8 Spray protection. The box shall be designed to prevent spray or rainwater from contacting the rotor blades when the box is in a normal shipping position (see 4.4.11). 3.3.9 Drainage. Provisions shall be incorporated to insure that every pocket in which water might collect inside or on
30、top of the box (when the box is in the normal shipping position) is provided with a means of drainage (see 4.4.12). 3.3.10 Ventilation. A means of ventilation of the inside of the box shall be provided. There shall be free passage of air to all sections of the box (see 4.4.13). 3.3.11 Moisture resis
31、tance. Interior supports/cushioning that are in contact with the blade shall be made of material which does not retain moisture (see 4.4.14). 3.3.12 Blade records receptacle. A waterproof receptacle shall be provided on one end of the box for a logbook or record and blade removal/installation instru
32、ctions. The receptacle shall be of just sufficient size to permit easy insertion and removal of the necessary records. It shall be accessible only from outside the box. The receptacle shall be so designed and constructed as to prevent entry of water into the storage box (see 4.4.15). 3.3.12.1 Recept
33、acle cover. The receptacle cover shall be permanently attached to the box by some means that will not interfere with accessibility to the receptacle contents. The cover shall be capable of being removed and replaced by hand or common hand tools. The cover shall not be a structural part of the box. P
34、rovisions shall be made for sealing the receptacle so that opening it would be detected readily (see 4.4.15.1). 3.3.13 Skids. When a skid pattern has been approved for a particular rotor blade box, that pattern shall be required on all future designs unless otherwise specified. When skids are not us
35、ed, a means shall be provided to prevent abrasion of the box shell caused by skidding. Clearance between stacked boxes shall be a minimum of 3 inches to accommodate forklift tines. When skids are used, they shall be easily removed and replaced using common hand tools. The lower inch of the skid ends
36、 shall be designed for ease of sliding, flat or tipped, over uneven surfaces without damage to skid or box (see 4.4.16). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-5806H 63.3.14 Concentrated load resistance. Each box shall be capable of
37、supporting loaded boxes, stacked one on top of another, to a minimum height of 20 feet (see 4.4.17). 3.3.15 Distributed load resistance. Boxes shall be capable of withstanding a distributed load of 175 pounds per square foot (see 4.4.18). 3.3.16 Handling provisions. Lifting rings, eyes and lugs, whe
38、n not in use, shall not project beyond the dimensions of the box. The minimum inside diameter of rings, eyes, or lugs shall be three inches (see 4.4.19). Features provided for lifting, tiedown, and towing shall be combined wherever possible. A four point suspension system for lifting the box shall b
39、e incorporated into the handling provisions. 3.3.16.1. Stacking guides. Stacking guides shall be positioned on box tops to prevent longitudinal and lateral slippage of stacked boxes. (The drawing in Figure 1 is an example of a workable stacking guide; the dimensions are for guidance purposes only.)
40、The stacking guide shall be attached on each end of the box top at locations directly above the end skids. The centerline through the apex of the stacking guide shall be perpendicular to the lateral centerline of the box top. When a nesting pattern has been approved for a particular model rotor blad
41、e box, that pattern shall be maintained on all future designs to assure satisfactory nesting of all boxes for the same model rotor blade (see 4.4.19.1). 3.3.16.2 Bumpers. Bumpers shall be installed in a staggered manner on each side of the blade box. (The drawing in Figure 2 is an example of an anti
42、-chafing bumper; the dimensions are for guidance purposes only.) The bumpers shall not come in contact with each other when the blade boxes are placed along side each other (see 4.4.19.2). 3.3.16.3 Lifting by forklift. The boxes shall be so constructed that a stack of fully loaded boxes, a minimum o
43、f 80 inches high, can be lifted by forklift from the sides without additional blocking and without deformation (see 6.5) of the box. Two openings, 3 by 19 inches, minimum, spaced approximately 30 inches center to center, or a 3 by 40-inch opening, minimum, shall be provided for lifting by forklift.
44、The opening or openings shall be symmetrically positioned about the center of balance of the loaded box (see 4.4.19.3). 3.3.16.4 Forklift scuff plate. Each container shall be equipped with an externally attached scuff plate. It shall extend beyond the forklift area in width and shall extend at least
45、 half way up the sides. It shall be constructed so as to protect the sides of the box from damage during forklift operations (see 4.4.19.4). 3.3.16.5 Hoisting. Suitable lifting rings, eyes, or lugs shall be provided for lifting a fully loaded box with chains, hooks or ropes by overhead facilities. L
46、ifting shall be done without failure or deformation of the box (see 4.4.19.5). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-5806H 73.3.16.6 Individual hoisting devices. The rings, eyes, or lugs shall be designed such that the loaded box ca
47、n be lifted free of the ground by any single ring, eye, or lug in accordance with 4.4.19.6. FIGURE 1. Stacking guide 3.3.16.7 Tiedown/towing devices. These devices shall have a minimum inside diameter of 3 inches. These devices, when not in use, shall not project beyond the dimensions of the box. Th
48、e devices shall be subjected to loading as outlined in 4.4.19.7 without yielding or failure or deformation of the box. 3.3.16.8 Pulling. The loaded box shall be capable of being pulled from each end without damage to the blade or deformation of the box (see 4.4.19.8). 3.3.16.9 Pushing. A loaded box,
49、 when tested in accordance with 4.4.19.9, shall show no evidence of damage to the blade or deformation of the box when pushed with a forklift. 3.3.17 Environmental conditions. The storage and shipping box shall be capable of meeting requirements of this specification subject to the following adverse environmental conditions: Temperature -25 F to 160 F Relative humidity 100% Provided by IHSNot for ResaleNo reproduction or networking permitted without li
