1、Murs-9248A(UsAF) Meding il i958 MIL-S-9248 (US Aircraft And Airframe Component Parts, General Specification For Wiring, Waining Devices, Installation of Radar Training Set AN/AFQ-T2A Marking For Shipment aad Storage Identification Marking of U, S. Military Property (Copies of docmnts required by con
2、tractors in connection with specific procurement functiops should be obtained from the procuring activity or as directed by the contracting officer.) - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1;11;-9248A ( U3.F) 3,l CONFONENTS. - The simulato
3、r shall consist of the following components, each part .to be complele except as indicateai. parts specifically listed in the contract or purchase order, and in the quantities therein listed, shall be furnished by the contractor. Only those It em No s_ Des cr ip t io2 - Se e 1 Plate drive assembly 2
4、 . Projection system 3 Simulated lower sight assembly Modified Y-4 horizontal periscope 14odified Y-3 vertical periscope 4 5 6 Cloud sitnulator 7 Visual flight simulator housing 8 Servoanpli f iera 9 Power supplies .lo Cab13 s 3.5 3.6 3.7 3.8 3.9 3 .lo 3 .u 3.12 3 .i3 3 .l)r 3.2 GEN3RAL SPECIFICATIO
5、N.- The requirements of XE-T-4860 shall apply as requirements of this specification with the exceptions and additions specified herdn. this specific at ion shall govern. When the two specificat ions conflict, 3 . 3 DESIGN AND CONSTRUCTION 3.3.1 WIRING PRACTICE, WIRE, AND C0MK)NENTS.- TsnZess otherwi
6、se specified, wire, wiring, soldering, wire marking, color coding, marking of parts, selection of electron tubes, and other components shall be in accordance with MIL-W-7517. 3.3.1,l Short leads of solid, tinned copper wke may be used 3.3.1.2 If color coding is used, the chassis wiring shall follow
7、where flexingof the conductor is not involved. Radio Irianufactumrt s Association color coding, 3.3.103 Winchester type connectors, or equal, may be: used. The connectors shall be identified by proper numbers labeled near each connector. The pins of the connectors shall be rhodium coated. 3.3.2 SERV
8、OS.- All servo drives that have mechanical or synchroni- aation limitations on the amount of rotation shaU have limit stops that will prevent damage to the equipment or loss of spmhronization. Mechanical stops shall be provided in. addition to any electrical stops, with the design such as to prevent
9、 damage if the electrical stops 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-9 2L8A ( USAF-) shouid fail. into a stop can be driven away from the stop by operation of controls at the control console. excee four. The design shall be such th
10、at a drive which has run The nurmer of types of servos shall not 3.3.2.1 Two-speed synchro systems shall. be used on the following follow-up systems to assure accurate positioning: a. X and Y drives of the plate drive assembly b. Alt it1Ade drive C. Azimuth sighting-angle drive d. Vertical sighting=
11、angle drive 3.3.2.2 The design of the servoamplifiers shall permit the replacement of any servoamplifier by ariy other servoamplifier of the sam type without readjustmen% of gain or balance controls. transportable in all respects. minirnum number of components need to be handled during shipment and
12、installation. Any one shipping component shall not exceed a weight of 800 pounds or overall dimensions of 4 by 6 by 8 feet, except that one compment may have the maxinum dimension not to exceed 12 feet. Whenever one dimension exceeds 8 feet, the total overall volume of the component shall not exceed
13、 the volune of a component having maxirnum dimensions of 4 by 6 by 8 feet. install or disassemble the simulator without the use of special tools, insofar as feasible. they shall be furnished with the simulator with at least one spare of each type of tool. Utilizhg personnel trained in the assembly o
14、f this equipment, it shall be possible to uncrate and assenblo the simulator ready for operation, or to disassemble and crate it ready for shipment, utilizing not more than 128 man hours. 3.3.3 COMFNENT LIMITATIONS.- The shulator shall be air It shallbe so designed that a 3.3.4 INSTALLATION AND DISA
15、SSEMBLY.- It shall be possible to Wherever special tools are required, 3.3.4.1 The design shall include necessary leveling screws so that the equipment can be installed OJ an uneven floor. Caskets, weatbr stripping, et cetera, shall be provided to make the simulator housing dust-ti-rht when the trai
16、ner is installed, and to make the transit cases dust-tight and weather-tight when the simulator is crated for shipment or storage. - 3.3.5 TRANSIT CASES.- The transit cases shall not be perinanent simulator components. The number and sima of transit cases shall be sufficient to accommodate the simul
17、ator components in accordance with Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-the weight and dimnsional criteria specified in 3.3.3. Any screws, clamps, or other holding devices used for assembling the cases for shipment or installat ion shall b
18、e captive to minimize possibility of lost parts. Necessary shock mounts shall be built into the transit cases to protect the equipment during shipment of oparation. 3.3.6 0PZRATION.- The shulator, when connected to radar training set AN/APQ-T1 or AN/AFQ-TZA (see 6.2), shall operate from power pro- v
19、ided by or for the attached training set. the AN/APQ-T1 and.AN/AFQ-T2A radar training sets shall be in accord- ance with MIL-R-474L and MIL-R-9274 respectively, When the simulator is installed with either the AN/AFQ-Tl or AN/APQ/T2A radar training set, the modified bombsight shall extend not less th
20、an 18 inches into one side of the housing at the heights specified in 3.8.5. The power requirements for. 3.4.1 GENERAL.- The simulator shall consist of the equipment which, when connected to radar training set AN/AW-Tl or AN/A?Q-T2A, shall. present an optical image representing the terrain below a s
21、imulated airplane position, similar to the image seen through a bombsight in an actual flight. synchronized with motion of the simulated airplane in the radar training set to permit training in coordinated optical and radar bombing techniques, Operat ion with the Y-4 horizontal periscope shall be ci
22、.ulated. Notion of the image shall be 3 . 4 . 2 CXARACTER IST ICs OF SIMULATED BOMBSI6HT OPZRATION . - Performance of the simulator shall meet the following requirements: 3.4.2.1 ALTITUDE SMULAT1ON.- Altitude siwdstion shall be variable frm 5,000 to 40,000 feet in three ranges, from 5,000 to 10,000,
23、 10,000 to 20,000, and 20,000 to 40,000 feet, with 10-percent overlap between ranges. accomplished by changing bombsight maps and the approprhte gear ratios . conthuously variable during flight and are to be synchronbed with vertical motion of the sinitdated airplane in the radar flight simulator, s
24、cales shall be 200,000 to 1, 400,000 to 1, and 800,ooO to 1 for altitudes of $,O00 to 10,000, 10,000 to 20,000 and 20,000 to 40,000 feet, 1.espectively. During altitude travel in the 10-percent overlap range, for example in the range from 20,000 to 18,000 feet and 40,000 to .!h,OOO feet, a gradual d
25、eterioration of image quality will be permitted, increasing in poorness of quality as the extrem end of travel is approached. shall be sufficient to meet the tests specified in 4.3.2 and 4,3.3e Change from one range to another shall be Within any one range, changes in alt itude are to be For a bombs
26、ight map 9 by 12 inches overall., the three Scale and repositioning accuracies 4 _- _c_.-_ - ._.- 5 ._- - / . _- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.4.2.2 HORIZONTAL TRAVEL.- Horizontal travel of the picture (teman plate) shaU be automa
27、tically synchronized with the horizontal motion of the simplane over the ultrasonic map, within the limits of the bmbing area. For a 9- by 12-inch bombsight map, the bombing area shall correspond to at least 7 by10 inches of travel on the map, at aqy of the three scales specified, Maximuin, simulate
28、d ground speed shall be not less than 700 knots. 3.4.2,3 AZDiVEH SIGHTINCf ANGLE.- Az;huth rotation of the image as seen through the eyepiece shaU simulate both changes is aircraft heading axxi changes in sighting angle of the bombsight with respect ta the airplane, Maximum rate-of-rotation of the o
29、ptical image shall be not less than 15 per secori. f .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILS-9 2b8A ( USAF)- picture shall be approximately 5 feet in diameter, consistent with the optical requirements of .the simulator, in order to ho
30、ld the overall dimensions of the simulator to a minimum. will not be required to furnish illumination sufficient for a good simulated ground terrain image when the banbsight is operated at lix magnificat ion. The light source 3.6.1 LIGHT SOURCE.- The light source shall consist of a mercury- arc, poi
31、nt-source type of lamp having a rating of at least 1,OOw. 3.7 SiNlJLATED LOWER SIG“ ASSEMi3LY.- The simulated lower sight The azimuth drive may be either in this assembly or shall include a scanning head for vertical sighting angle and the altitude drive. in the plate drim assembly, 3.8 MDDIFIED Y-
32、A f ilter-changer control shall 3.8.5 PERISCOPE EYEPIECE.- The eyepiece shall be approximately shal be provided and shall operate normally. aperate normally. be included but need not be operable. 39 inches above the floor level. 3.9 NDIFIED Y-3 VERTICAL PERISCOPE.- The simulator shall be designed fo
33、r later incorporation of a modified Y-3, vertical- periscope adapter kit. 3,lO CLOUD SIMILATOR.- The cloud simiator shall consist of the equipment necessary to accompl,ish the Auiction specified in 3.b.2.11. 3.11 VISUAL FLIGHT SIMULATOR HOUSING.- A housing shall be pr- vidPARATION FOR DELIVERY 5.1 P
34、IZESVATION AND PACKAGING 5.1.1 LEWL A.- Each shulator shall be preserved and packasd in accordance with IYIL-P-, method as applicable. be made of the shipping containers specified h 3.3.4 and 3.11. Najor components shall be packed in accordance with method II. cables shall have the connectors adequa
35、tely protected, then coiled and packed as required. Full use shall The parer 5.1.1.1 When method IIA is used, an inspection window shall be provided and so located that the humidity ndicator may be readily viewed. barrier material shall be covered with cellulose wadding conforming Sharp corners or p
36、rojections coming in contact with the to PYP-C- . 5.1.2 LWEL C.- Each simulator shall be preserved and Fackaged in accordance with the inanufacturer s commercial practice. 5.2 PACKING 5.2.1 WELS A AND B.- idhen exterior t,ype shipping containers are mcessary they shall conform to MIL-C-6057, style a
37、s applicnble. Whenever possible, the containers constructed as a part of this sUmilator shall be used as the shipping containers. of packaging and packing, required to provide adequate protection for the component, but shall not require the use of special tools or skills for reassembly. When necessa
38、ry, electronic tubes or other fragile items shall be mmoved and adequately protected against shock. equipment, and other fragile itens, not removed for special packaging, shall be cushioned, blocked, or braced as necossa.ry for added pvotection. securely fastened to Tevent inovement . Glass panels,
39、dials, mobs, et cetera, shall be adequately protected. Doors, drawers, et cetma, shall be banded or otherwise .fastened. When packaging or skiciaina is required it shall be only the mniwn rsqujsed to facilikate handling. Requii-ements of 5.4 rid 5.5 shall be waived. 5.2.2 LBVEL C.- Each simulator sh
40、all h given the minimum amount Disassembly shall be held to the minimum Instruments, electronic Loose or movable parfs shall he taped or otherwise . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIzrS-9248( ISAF) 5.2.2.1 When this simulator is to
41、 be shipped by air, either damestic or overseas, components not adequately protected by the containers furnished shall be given the protection required to prevent damage from fallirig. objects, handling equipment, dust, or moisture. Any uncovered or unprotected operating sections shall be covered wi
42、th cellulose wadding snd further protected by placing a sheet of fiberboard, or a suitable substitute, on the wadding ani holding it in place by taping or banding it to the item. Any itern not completely incased shall be further protected from the rubbing of one component against another by placing
43、felt or fiberboard stripping between the items. Padding shall as0 be used whenever the tiedown gear, buckles, or other strapping cm8 into contact with an item. Each item equipped with casters shall be furnished with a skid, constructed to prevent roiling of the item and to prevent damage to the floo
44、r of the plane. 5.3 PfIYSIW PROTECTION.- The simulator packed in accordance with 5.2.1 shall be cushioned, blocked, aid braced to meet the requirements of 5.5 when tested in accordance with 5.4. The drop tests of MiIrP-116 shall be waived. When practicable, fragile items removed for separate cushion
45、ing shall be packed in the container with the majar ccmponent from which they were removed. 5.4.1 DROP CR“EWS.- The contairier shall be supported at one end of the base on a wood sill, 5 or 6 inches in height, placed at right angles to the skids or base eds. An additional !R TO WITHSTAND HANDLING.-
46、hien tested in accordance with the requirements of 5.h) the container shall not reveal any significant structural weaknesses. Po deformation shall have occurred which will not pennit further satisfactory use of the conbainer for shipnent and storage. 5.5.2 ASILITY OF THE CONTAINER TO kROTECT CONTENT
47、S.- Illhen tested in accordance with 5.4, the contents of the container shall not show any indications of damage that would affect theiT utility. There shall be no evidence of a substantial amount of shifting of the contents within the container that wouid create conditions likely to cause damage du
48、ring shipnent. examination of the contents shall be conducted before and after the tests by or under the supervision of the procuring activity. in accordance with XIL-SiR-129. The nomenclature shall be as follows: Unless otherwise specified, 5.6 -MARKING OF SKIX4dNTS.- The transit cases shall be mar
49、ked Simulator, Visual Flight, Bombsight, Type M3-1 In addition, a metal identification plate as specified in MIL-STD-i30 shall be attached to the outer and inner surface of the cover of each transit case. The following information shall be in addition to that specified: -(Name of item) Transit Case Case MG. of No. - Part of Simulator, Visual Flight, Bombsight _I.- Type m-1 Specification MIL-S-9248 6. * NO
