1、Designation:E246305 Designation: E2463 11Standard Performance Specification forCargo Bed Cover (CBC) M105A2 Trailer, Type II1This standard is issued under the fixed designation E2463; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the general performance requirements for the Type II Cargo Bed Cover (CBC). The
3、 Type II CargoBed Cover is a removable general purpose rigid wall enclosure for the cargo bed of that is mounted on the M105A2 Trailer, Cargo:1.5 Ton, 2 Wheel. The Type II CBC provides environmental protection and security for mission equipment and items of generaltransport.1.2 The values stated in
4、inch-pound units are to be regarded as the standard. The values given in parenthesis are for informationonly.1.3 The following safety hazards caveat pertains only to the test required portion, Section 4, of this specification: This standarddoes not purport to address all of the safety concerns, if a
5、ny, associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior touse.2. Referenced Documents2.1 ASTM Standards:2E1925 Specification for Engineering and Design Crit
6、eria for Rigid Wall Relocatable Structures2.2 Army Standards:3ARMY TM 9-2320-280-10 HMMVW Training ManualARMY TM 10-5411-232-13 the Type II CBC shall be examinedfor the visual defects in Table 1, dimensions specified, and tested as specified and in the sequence specified in Table 2. Unlessotherwise
7、specified (see 6.2), all testing shall be performed on the same Type II CBC. The presence of any visual defect, anydimension not within the specified tolerance, or failure of any test shall be cause for rejection of the first article.4.2.2 Comparison Sample Inspection When a comparison sample inspec
8、tion is required (see 6.2), it shall be inspected andtested as specified in 4.2.1.4.2.3 Quality Conformance InspectionUnless otherwise specified, sampling for inspection shall be performed in accordancewith ANSI/ASQC Z1.4-2003.4.2.3.1 Component and Material InspectionIn accordance with 4.1, componen
9、ts and materials shall be inspected inaccordance with all the requirements of referenced documents unless otherwise excluded, amended, modified, or qualified in thisspecification or applicable purchase document.4.2.3.2 End Item Visual Examination The end item shall be examined for the defects listed
10、 in Table 3. The lot size shall beexpressed in units of one Type II CBC. The sample unit shall be one Type II CBC. The inspection level shall be II and the AQL,expressed in terms of defects per hundred units, shall be 4.0 for major defects and 6.5 for total (major and minor combined) defects.4.2.3.3
11、 End Item Dimensional ExaminationThe end item shall be examined for conformance to dimensions specified. Anydimension not within the specified tolerance shall be classified as a defect. The lot size shall be expressed in units of one shelter.The sample unit shall be one shelter. The inspection level
12、 shall be II and the AQL, expressed in terms of defects per hundred units,shall be 4.0.4.3 Verification Methods:4.3.1 WeightCompliance with 3.2.1 shall be determined by weighing the Type II CBC and its mounting hardware. The scaleused shall have a one (1) 1 lb or less graduation and shall have an ac
13、curacy within plus or minus one (1)1 lb. The scale shall havea current calibration traceable to the National Institute for Standards and Technology. Failure to meet the requirements of 3.4.1 shallconstitute failure of this test.4.3.2 Tailgate OperationWith the Type II CBC mounted on its carrier, the
14、 carriers tailgate shall be operated (that is, openedand then closed). Failure to meet the requirements of 3.2.2 shall constitute failure of this test.4.3.3 BlackoutThe Type II CBC/carrier combination shall be located at the center of a circle of radius 300 meteres, on levelground, in an area with a
15、 wooded or hilly background (that is, the silhouette should not be above the horizon). There shall be nosignificant obstructions (higher than 18 in. (46 cm) between observers located on the circumference of the circle and the Type IICBC/carrier combination. Testing will be conducted in hours of dark
16、ness between early evening nautical twilight (EENT) andbeginning morning nautical twilight (BMNT) on a moonless night. A 100-watt unshielded white light bulb, rated at no less than17 Lumens per Watt, A-19 style, shall be located inside the Type II CBC and suspended approximately one (1) 1 ft from th
17、e topand center of the Type II CBC with all doors, ports, and vents closed. The light shall be turned on and off at random intervals fora period of 5 minutes.min. Eight observers, positioned along the circumference of the circle at 45 degree intervals starting fromthe forward longitudinal axis of th
18、e Type II CBC/carrier combination, shall record any light detected during the test period. Failureto meet the requirements of 3.2.3 shall constitute failure of this test.4.3.4 InterchangeabilityCompliance with 3.2.4 shall be determined by selecting two Type II CBCs from the production lotof complete
19、d Type II CBCs. All removable parts shall be interchanged between Type II CBCs selected. The interchange shall beaccomplished by removing the fasteners, interchanging the parts and reinstalling the fasteners. Inability to interchange the partsin accordance with 3.2.4 shall constitute failure of this
20、 test.4.3.5 MountingUsing only the hardware provided with the Type II CBC, the Type II CBC shall undergo 10 cycles ofE2463 115installation and removal (see Table 2) from its carrier in accordance with its manual. The CBC and its carrier shall be inspectedafter each cycle for damage or degradation. F
21、ailure to meet the requirements of 3.2.5 shall constitute failure of this test.4.3.6 ToxicityDemonstrate the Type II CBC does not produce toxic exposures by meeting ACGIH Threshold Limit ValuesThreshold Limit Values for materials used in the Type II CBCs construction. At the beginning of First Artic
22、le Verifications (FAV)TABLE 1 Sequence O of First Article VerificationsVerificationRequirementParagraphVerificationParagraphDimensions 3.2.1 4.3.1Weight 3.2.1 4.3.1Payload 3.4.2 4.3.13Workmanship (Visual)Toxicity (initial) 3.2.6 4.3.6Non-skid surfaces 3.6.1 4.3.17.1Interior Color 3.6.2 4.3.17.2Inter
23、ior color 3.6.2 4.3.17.2Exterior Color 3.6.3 4.3.17.3Exterior color 3.6.3 4.3.17.3Chemical agent resistance 3.6.4 4.3.18Identification 3.6.5 4.3.19Mounting (Perform 212 times) 3.2.5 4.3.5Mounting (perform 212 times) 3.2.5 4.3.5Tailgate operation 3.2.2 4.3.2Personnel door 3.3.1 4.3.7Door handle 3.3.1
24、.1 4.3.7.1Secondary exit 3.3.1.2 4.3.7.2Ladder 3.3.2 4.3.8Roof access steps/handholds 3.3.3 4.3.9Power and signal access ports 3.3.4 4.3.10Vents 3.3.5 4.3.11Mounting (Perform 2 times) 3.2.5 4.3.5Mounting (perform 2 times) 3.2.5 4.3.5Roof loads 3.4.1 4.3.12Personnel door structure 3.4.3.1 4.3.14.1Doo
25、r Stop 3.4.3.2 4.3.14.2Door stop 3.4.3.2 4.3.14.2Surface impact resistance 3.4.4 4.3.15Interior payload provisions 3.4.2 4.3.13Rail 3.5.1 4.3.16.1Fixed wing 3.5.2 4.3.16.2Helicopter Sling Lift 3.5.3 4.3.16.3Helicopter sling lift 3.5.3 4.3.16.3Ground Mobility 3.5.4 4.3.16.4Ground mobility 3.5.4 4.3.1
26、6.4Lifting provisions/mounting 3.5.5 4.3.16.5Temperature shock 3.7.5 4.3.23Toxicity (Final) 3.2.6 4.3.6Toxicity (final) 3.2.6 4.3.6Blowing sand and dust 3.7.6 4.3.24Watertightness 3.7.10 4.3.29Blackout 3.2.3 4.3.3Interchangeability 3.2.4 4.3.4Repeat the following: 3.2.4 4.3.4Tailgate operation 3.2.2
27、 4.3.2Humidity resistance 3.7.1 4.3.20Marine atmosphere 3.7.2 4.3.21Ice 3.7.3 4.3.22Temperature range 3.7.4 4.3.23Ultraviolet effects 3.7.7 4.3.25Flame resistance 3.7.8 4.3.26Fungus 3.7.9 4.3.27TABLE 2 Ground MobilityLimited MileageSurface/Test CourseMaximum Speed(MPH)Average Speed(MPH)Distance(Mile
28、s)Highwayspaved roads (Perryman straightaway) 60 (96.5 km/h) 50 (80.5 km/h) 100 (160.9 km)Gravel roads (Munson gravel road course) 20 (32.2 km/h) 10 (16.1 km/h) 100 (160.9 km)Cross-country (unimproved) (Perry cross-countrysecondary road “A”)20 (32.2 km/h) 10 (16.1 km/h) 600 (965.4 km)Belgian block (
29、Munson Belgian block) 20 (32.2 km/h) 10 (16.1 km/h) 200 (321.8 km)Radial washboard 2 to 4-in. (5.1 to 10.2cm) waves 5 lapsRadial washboard 2 to 4-in. (5.1 to 10.2-cm) waves 5 lapsTwo-inch (5.1 cm) washboard 5 lapsE2463 116and during the high temperature phases of temperature range (4.3.23.1) and the
30、rmal shock (4.3.23), a panel of three inspectors shallperform odor tests. Any smell, persisting after 15 seconds, classified as nauseous, repellent, burning or strongly penetrating orcausing dizziness, drying of nasal passages, sneezing or any adverse reaction, detected by any of the inspectors shal
31、l be considereda failure. Failure to meet the requirements of 3.3.5 shall constitute failure of this test.4.3.7 Personnel Door.:4.3.7.1 Door HandleThe personnel door shall be securely closed.A10-lb force shall be applied to the exterior personnel doorhandle in the direction which best facilitates mo
32、ving the handle into its open position. After it has been verified that 10 lbslb isadequate to move the handle fully into its open position, the personnel door shall be opened 160 degrees. The personnel door shallthen be closed and a 10-lb force shall be applied to the exterior handle in the directi
33、on which best facilitates moving the handleto its closed position. Failure to meet the requirements of 3.3.1.1 shall constitute failure of this test.4.3.7.2 Secondary ExitThe Type II CBC secondary exit shall be measured and examined to determine compliance with3.3.1.2. The secondary exit with the ta
34、ilgate closed shall be opened from inside the Type II CBC by applying a 10-lb force in thedirection which best facilitates its opening. Failure to meet the requirements of 3.3.1.2 shall constitute failure of this test.4.3.8 LadderThe ladder shall be attached to the Type II CBC/carrier combination in
35、 accordance with the Type II CBC manual.A 400-lb load shall be applied to the center of each step of the ladder for 1 minute.min. The ladder, Type II CBC and carrier shallbe examined for damage or deformation. Failure to meet the requirements of 3.3.2 shall constitute failure of this test.4.3.9 Roof
36、 Access Steps/Handholds Each deployed step/handhold shall be individually subjected to a vertical load of 400lbslb applied to its outer most point and maintained for one (1) minute. 1 min. The handhold mounted to the roof shall have ahorizontal load of 400 lbslb applied to the outer most point of th
37、e deployed handhold. The roof access steps/handholds shall beevaluated for compliance with 3.3.3. Failure to meet the requirements of 3.3.3 shall constitute the failure of this test.4.3.10 Power and Signal Access PortsThe Type II CBC shall be inspected for compliance with 3.3.4. Failure to meet ther
38、equirements of 3.3.4 shall constitute failure of this test.4.3.11 VentsThe ventilation ports shall be inspected for compliance with 3.3.5. Failure to meet the requirements of 3.3.5 shallconstitute failure of this test.TABLE 3 End Item Visual DefectsExamine Defect ClassificationMajor MinorFinish Not
39、as specified, not finished where required 101Not adherent, for example, blistered, peeled 201Runs, wrinkles, streaks, or areas of no film 202Finish not dry, that is, wet or tacky to touch 203Scratch, gouge, abrasion exposing prime coat or bare metal, inaccordance with the drawings204Any area of rust
40、 205Design Any characteristic not in accordance with specified requirement 102Construction and WorkmanshipComponent or part fractured, split, punctured, dented, ormalformed103Construction andworkmanshipComponent or part fractured, split, punctured, dented, ormalformed103Component missing, inoperativ
41、e, or will not operate as intended 104Component not properly assembled or secured 105Any functioning component which requires abnormal force tooperate206Burr, rough or sharp edges, or silver which may be injurious topersonnel or cargo106Gaskets torn or split 107Gasket or seals painted 207Visible gap
42、s between aluminum faces and extruded edges orpanel cutout edge members108Welding and brazing(where required)Not type specified, missing where required 109Incomplete, burn through area pits, crack or fracture, or otherwisenot fused110Stag inclusion, undercoat, not smooth and uniform, scale or fluxde
43、posit not removed208Metal fasteners, bolts, nuts, Missing, not type specified, broken, stripped, or loose 111screws, studs Lockwasher missing where required 209Rivets Missing 112Not type specified 113Not sufficiently peened, not drawn tight, excessively peened 210Cloth cut or tear longer than18 in.
44、114Hole larger than18 in. diameter 115Marking Missing, incomplete, not legible, not specified type or size,misplacedInstruction plate: nameplate Missing, incomplete, not legible 116Instruction manual Missing, incomplete, not legible 117E2463 1174.3.12 Roof LoadsThe Type II CBC roof shall be subjecte
45、d to a uniform load of 40 lbs/ftlb/ft2over the entire surface. Afterremoval of the uniform load, a 660-lb load shall be applied to the weakest region of the roof overa1ft3 2ft13 2 ft area. Eachtest shall be for a duration of 5 minutes.min. Failure to meet the requirements of 3.4.1 shall constitute f
46、ailure of this test.4.3.13 Interior Payload Provisions A simulated payload shall be installed in Type II CBC. The Type II CBC/Trailercombination shall be tested in accordance with 4.3.16.1 and .and 4.3.16.4. The Type II CBC shall also be tested in accordance with4.3.16.5. Failure to meet the require
47、ments of 3.4.2 shall constitute failure of this test.4.3.14 Personnel Door Loads.:4.3.14.1 Personnel Door StructureThe door shall have a 200 lb static load applied parallel to the hinge line, along the dooredge opposite the hinge, with the door open 90 degrees. After 10 minutesmin the load shall be
48、removed and the door examined.Failure to meet the requirements of 3.4.3.1 shall constitute failure of this test.4.3.14.2 Door StopThe door shall be in the open position held by the door stop mechanism. A load, equal to 10 lbs/ftlb/ft2times the largest surface area of the door, shall be applied norma
49、l to the doors surface. The load shall be applied at the midpointof the edge of the door, opposite the hinge, for one (1) minute. 1 min. The load shall be removed and reapplied to the door at thesame point, in the opposite direction, for one (1) minute.1 min. Failure to meet the requirements of 3.4.3.2 shall constitute a failureof this test.4.3.15 Surface Impact ResistanceEach type of roof and wall construction found on the completed Type II CBC shall besubjected to an impact from a 30-lb steel cylinder. The cylinder shall be 3.00 in. in diameter with
