1、MILITARY SPECIFICATION COMPUTER, ATTACK TYPE CPU-73 A/P 1, SCOPE 1.1 This specification covers one type of hand held attack computer. 2. APPLICABLE DOCUMENTS 2.1 for bids or request for proposal, form a part of the specification to the extent specified herein. The following documents, of the issue i
2、n effect on date of invitations e SPECIFICATIONS Federal L-P-375 Plastic Film, Flexible, Vinyl Chloride L-P- 3 7 8 L-P-535 Plastic Sheet (Sheeting); Vinyl Chloride Polymer and PPP-B-676 Boxes, Setup Plastic Sheet and Strip (Polyolefin) Vinyl Chloride - Vinyl Acetate Copolymer, Rigid Military MIL-P-1
3、16 Preservation, Methods of MIL-L-25142 Luminescent Material, Fluorescent MIL-M-38733 Manuals Technical: Operation Instructions (For Hand- Held Flight Computers) STANDARDS Military MIL-STD-130 Identification Marking of U.S. Military Property MIL-STD-143 Specifications and Standards Order of Preceden
4、ce for the Selection of MIL-STD-794 Parts and Equipment, Procedures for Packaging and Packing of hIL-STD-831 Test Reports, Preparation of MC 6 30 33 Eyelets, Metallic, Rolled Deep Flange, with Washer, Style A FSC 6605 Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
5、se from IHS-,-,-MIL-C-83856 66 m 999990b 0442495 T . r MIL-C-83856 (USAF) Federal FED-STD-595 COlOrS (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtain- ed from the procuring activity or as directe
6、d by the contracting officer.) 3. REQUIREMENTS 3.1 First article inspection. This specification makes provisions for first article inspection. 3.2 Selection of specifications and standards. Specification and standards for necessary commodities and services not specified herein shall be selected in a
7、ccordance with MIL-STD-143. 3.3 Materials 3.3.1 Disks. The computer disks shall be constructed of vinyl chloride in accordance with Composition B, Type II, Grade C of L-P-535. The material shall be flat, homogeneous, and resistant to water and warpage. 3.3.2 Fastener. The fastener shall be a metal e
8、yelet in accordance with MS63033 or other similar device. 3.3.3 Protective treatment. Use of materials that are subject to corrosion in salt air or other atmospheric conditions likely to occur during service usage shall be avoided. When used they shall be protected against such cor- rosion in a mann
9、er that will in no way prevent compliance with the perform- ance requirements of this specification. The use of any protective coating that will crack, chip, or scale with age or extremes of atmospheric condi- tions shall be avoided. 3.3.4 Case. The computer case material shall be .O30 inch thick, i
10、n accord- ance with type 11 class 2 of L-P-375. The case dimensions shall be of suffi- cient size to adequately contain the computer and the operational manual described in 3.3.5. The case shall contain two (2) pockets. The case shall be marked or provide means for content identification. It shall b
11、e possible to close the case by the use of two (2) snaps or similar device(s1. The following wording shall be printed on the front of the case: “WARNING: Prolonged exposure to intense sunlight in a non-air conditioned enclosure may cause warpage.“ “U. S. Government“ 2 Provided by IHSNot for ResaleNo
12、 reproduction or networking permitted without license from IHS-,-,-_I1II-C-35b_bb Wl79_7Ob OLt42qqb II _W MIL-C-83856 (USAF) The above wording shall conform to MIL-STD-130. #25102 of table VI1 of Fed-Std-595 or a commercial match. 3.3.5 Operational manual. be packed in the pocket of the case (ref pa
13、ra 3.3.4). prepare the manual, if required by the contract, in accordance with the latest issue of MIL-W-38733. contractor will deliver the negatives to the government and request the necessary quantity of printed copies for packup. require preparation of an operational manual, the contractor will r
14、equest the government to supply current printed copies for packup. The case color shall be One copy of the current operational manual shall The contractor will If preparation of a manual is required, the If the contract does not 3.4 Design and construction. discs mounted concentrically. The computer
15、 shall consist of three rotatable The printed data shall be protected by an 0.005 inch thick clear vinyl, laminated under heat and pressure to form a . protective bond. binding. so that there will be no radial or axial play between them. The rotating discs shall rotate freely and smoothly with no Th
16、e rotating parts shall be close fitted on the attachment shaft 3.4.1 Printed data. over an opaqiie Tuminescent background, except that the data described in paragraph 3.b.4 shall not have an opaque luminescent background. of the background shall be in accordance with MIL-L-25142. location of tables,
17、 scales, and markings on the computer shall conform to figures 1 through 4 and shall be in accordance with 3.4.2 through 3.4.4. Printed data contained on the computer shall be black The color Arrangement and - 3.4.2 Front disc. The front disc shall contain scales, tables, and other markings to allow
18、 the solution of time, speed,and distance problems. Specifically the front disc shall contain logarithmetic time and interceptor true air speed scales, a temperature-altitude window, a line of position (LOP) angle window, a lead distance window, double turn factor table, and a compressibility factor
19、 table. In addition, the front disc shall contain special markings as described in 3.4.2.5. The arrangement and location of the above scales, tables, and markings shall conform to Figure 1 and shall be in accordance with 3.4.2.1 through 3.4.2.11. 3.4.2.1 0.025 inches, with the exception of an 0.500
20、f 0.025 inch “spike“ extending fmm the outer circumference of the 3.875 inch radius. approximately 0.5 inches wide at the base and shall taper to be tangent to an 0.125 inch diameter circle at the end. An 0.125 inch radius shall be used to blend the base of the “spike“ to the auter circumference of
21、the disc. 3.4.2.2. Dimensions. The outer radius of the front disc shall be 3.875 f The spike shall be The “spike“ shall be centered about the index like described in 3.4.2.2 Index line. A black index or “hairline“ shall be contained on the front disc and shall provide a reference mark for all scale
22、graduations 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-83856 66 7997906 OYLiZLi97 3 s Scale Graduation T Angle Degrees f Minutes MIL-C-83856 (USAFI on the front disc. and shall extend from the center of the disc through the “LOP window“,
23、 terminate, then continue through the “Lead Distance hindow“, terminate and then continue again from the outer edge of the “Interceptor TAS“ scale to the outer extremity of the dicc. The index line shall be approximately 0.005 inches wide 3.4.2.3 Scale background. With the exception of the LOP, Lead
24、 Distance, and temperature-altitude windows, the front disc shall contain an opaque fluorescent background color in accordance with MIL-L-25142 for the area contained within a radius of 3.625 inches from the center of the disc. The LOP and temperature-altitude and leaddistance windows, as well as al
25、l front disc material outside a radius of 3.625 inches from the center of the disc shall be of a clear transparent material in accordance with Fed- eral Specification L-P-535, Composition B, Type II, Grade C. 3.4.2.4 Interceptor true airspeed scale. The interceptor true airspeed scale shall consist
26、of logarithmic scale graduations for the purpose of providing solutions of time, speed, and distance probl.ems. The location and arrangement of this scale shall be in accordance with Figure 1 and as defined in 3.4.2.4.1 through 3.4.2.4.4. 3.4.2.4.1 Interceptor true airspeed scale location and accura
27、cy. The interceptor true airspeed scale shall begin and terminate at the index line defined in 3.4.2.2. The location of any graduation on this scale shall be defined by the equation 8 = 360 Log N/10; where 6 is equal to the number of degrees in a clockwise direction from the index line of 3.4.2.2 an
28、d N is the numerical value of the graduation. nominal values for the location of graduation on this scale shall be within !i0 minutes of arc of the nominal values listed in Table I. Acceptable 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 O 1 3 4 6 7 9 10 12 13 O 33 6 37 8 38 7 35 2 28 4 Provided
29、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. (Contd) INTERCEPTOR AND TARGET TAS SCmS - Scale Graduation 11 .o 11 .I II .2 Il .3 11.4 11.5 li .6 11.7 11.8 II .9 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 i 2.8 12.9 13.0 13.1 13.2 13.3 13.4 13.6 13.7 1
30、3.8 13.9 14.0 14.1 14.2 14.3 14.4 14.5 13*5 Ar Degrees 14 16 I7 I9 20 21 23 24 25 27 28 29 31 32 33 34 36 37 38 39 41 42 43 44 45 46 48 49 50 51 5 2 33 54 55 57 58 $e Ninutes 54 19 43 6 29 51 12 33 53 12 30 48 5 22 38 53 8 22 36 49 1 13 24 35 45 55 4 13 21 29 36 43 49 55 1 6 5 Provided by IHSNot for
31、 ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-83856 bb 7777906 0442477 7 J MIL-C-83856 (USAF) TABLE I, (Contld) INTERCEPTOR AND TARGET TAS SCALES Scale Graduation 14.6 14.7 14.8 14.9 15.0 15.2 15.4 15.6 15.8 16.0 16.2 16.4 16.6 16.8 17.0 17.2 17.4 17.6 17.8 18.0 1
32、8.2 18.4 18.6 18.8 19.0 19.2 19.6 19.8 20.0 20.2 20.4 20.6 20.8 21 .o 21 02 21 04 21 .6 21.8 22.0 19.4 An Degrees 59 60 61 62 69 65 67 69 71 73 75 77 79 81 82 84 86 88 90 97 98 I O0 1 o1 103 105 I 06 108 109 111 113 114 116 117 118 120 121 123 -e Minutes IO 14 18 21 24 28 30 31 31 29 26 21 14 7 58 4
33、7 36 23 9 54 38 20 I 42 21 59 37 13 48 22 56 28 O0 30 O0 29 57 24 51 16 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. (Contd) INTERCEPTOR AND TARGET TAS SCALES Scale Graduation 22.2 22.4 22.6 22.8 23 .O 23.2 23.4 23.6 23.8 211.0 24.2 24.
34、4 24.6 24.8 25.0 25.2 25.4 25.6 25.8 26.4 26.8 27.0 27.2 27.4 27.8 28.4 28.6 28.8 29.0 29.2 29.4 29.8 30.0 30.5 26.0 26.2 26.6 27.6 28.0 28.2 29.6 Al Degrees I24 I 26 127 128 130 131 132 134 135 i 36 138 139 140 142 143 1 44 I45 146 148 149 150 151 152 154 155 156 I57 158 I59 160 162 163 1 64 1 65 1
35、 66 167 168 169 170 171 I74 le Minut es 41 5 29 51 13 35 55 1.5 34 53 io 28 44 0 16 30 44 . 58 li 23 35 47 57 8 17 27 35 44 51 59 5 12 18 23 28 3? 36 40 43 46 21 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-356 bb 7777706 0442503 1 = TABLE
36、 I. (Contd) MILle Minutes 46 15 44 12 40 o6 32 57 21 44 o7 29 50 II 30 50 08 43 16 46 13 39 02 23 42 59 14 27 38 48 55 O1 o6 08 O9 O9 o7 03 58 52 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-8385b bb H 77777Ob OLiLi2503 5 W 1 MIL- c - 84 856
37、 ( uw ) TABLE I. (Contd) INTERCEPTOR AND TARGET TAS SCALES Scale Graduation 84 .O 85 .O 86.0 87 .O 88 .o 89 .O 90.0 91 .O 92.0 93 .O 94 .O 95.0 96.0 97 *O 98 o0 99.0 100.0 Ani Degrees 332 334 336 338 340 341 343 345 346 348 350 351 353 355 356 358 360 te Minutes 4.4 35 25 14 01 47 32 15 58 39 20 59
38、37 14 50 26 O0 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-J P MIL-C-3Sb bb 77777Ob 0442509 17- _ MIL-(2-83856 (USAF) 3.4.2.4.2 Interceptor true airspeed scale arrangement. The interceptor true airspeed scale markings shall be arranged as snow
39、n in figure 1 with initial number “10“ outlined in black around, the background color for ease of recognization. into the index line defined in 3.4.2.2. All markings related to the inter- ceptor true airspeed scale shall be contained within an 0.375 ? 0.925 inch band terminating at 3.625 ! 0.015 inc
40、hes from the center of the disc. The black marking surrounding the initial number shall blend 3.4.2.4.3 Interceptor true airspeed scale designation. The interceptor true airspeed scale shall be designated by the words “INTERCEPTOR“, “TAS“, and “CAS“ in 7 point, bold type, Gothic letters of an approp
41、riate style (See Figure 1). Numerical values shall be located adjacent to the appro- priate graduation for each whole number from 10 to 25 for every 5th number from 25 to 60 and every 10th number from 60 to 90. The size and style of numerical markings shall be approximately 8 1/2 point, bold face, G
42、othic. With the exception of the special markings specified in 3.4.2.5, scale graduation marks of approximately 0.15 inches in length shall be located at; each scale division of 0.5 between “10“ and “15“, each scale division of 1.0 between “15“ and “60“ and each scale division of 5.0 between “60“ an
43、d “100“. In addition, scale graduation marks of approximately 0.10 inches in length shall be located at each intervening scale division of; 0.1 between “10“ and “15“, 0.2 between “15“ and “30“, 0.5 between “30“ and “60“ and 1.0 between “60“ and “100“. marks shall be approximately 0.005 inches. The w
44、idth of these graduation 3.4.2.4.4 Time scale. The words “Minutes“ and “Seconds“ shall be located within the boundary of the interceptor true airspeed scale to provide a reminder that the solution of problems involving time may be obtained by using the interceptor true airspeed scale. These words sh
45、all be located as shown in Figure 1 and shall be of 7 point, light, hthic letters of an appropriate style. 3.4.2.5.- Special markings. Special markings as described in 3.4.2.5.1 through 3.4.2.5.4 shall be included on the front disc. 3.4.2.5.1 Stern attack lead/lag index marks. Index marks, in the fo
46、rm of “arrow heads“ shall be located at the appropriate position within the interceptor true airspeed scale band to aid in the solution of various stern attack problems. inches long and 0,050 inches wide at the base with the arrow point termin- ating at the circumference of the interceptor true airs
47、peed outer band. The designation of these index marks shall be located, where.partica1, under each index and shall be of a size as to be clearly discernible and yet not interfere with other markings on the disc. designation of these markings are as follows: 9OoS, 1.57 on interceptor TAS scale; 6OoS,
48、 1.05 on interceptor TAS scale; 13OoS, 2.26 on interceptor TAS scale; 18OoS, 3.14 on interceptor TAS scale. These “arrow heads“ shall be approximately 0.150 The location and 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-356 66 m 9999906 OL
49、ILl2505 9 m I F MIL-C-63856 (USAF) 3.4.2.5.2 Time scale index mark. be located at the interceptor TAS scale mark for the number ii60“, This special marking shall consist of the number 60 outlined in black (see figure 1 ). The black outlining shall be bounded by a radial arc approxi- mately 3.00 inches from the center of the disc and two radial arcs de
