NAVY MIL-C-81412-1966 COMPASS SET GYROSCOPE REFERENCE NAVIGATIONAL AN ASN-75( )《AN ASN-75( )A302导航陀螺参考罗盘装置》.pdf

1、MILITARY SPECIFICATION COMPASS SET, GYROSCOPE REFERENCE, This specification has been approved by the Bureau of Naval Weapons, Department of the Navy. 1. SCOPE 1.1 Scope = The equipment covered by this Specification is a 5.5 degree per hour, magnetic slaved, directional gyro stabilized conpass set fo

2、r use in military aircraft. 1.2 Classification - There are two configurations of the Compass Set. The Type I configuration includes the nent of parts. requiring scheduled replacenent shall be specified by the contractor. Parts 3.3.2.3 Reliabilitjj in iyiean Time Between Failures (MTBF) - The equipme

3、nt shall have 800 hours of mean (operam -bG-E-S4OO. 3.39392 Interconnection Cablix - The equipment shall be capable of satisfactory operation using external wiring in accordance with the applicable requir ements af Specification 111,-5088. The external wiring shall be unshielded, except that a mj.n2

4、wn number of the individual wires may be shielded when demonstrated as necessary to meet interference control requirements and provided the assembly of the cable to its plugs may be easily accomplished. connectors attached to the cables shall not be supplied as part of the equipment. (See Figure 1.)

5、 External cables and that portion of the Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MLL-C-L432 bb m 77777Ob 0343375 7 m MIL-c- (WP) 3*3.4 panels shall conf-orm to the applicable requirements of Specification MIL-C-6781. the procuring activity pr

6、ior to preproduction testing. Control Panels - All rack or console mounted control The configuration of all control panels must be approved by 3.3.5 Interchangeability of Reordered Equipment - For reordered equipment interchangeability shal exist between units and all replaceable assemblies, subasse

7、mblies, and parts of a designated model of any previously mamfactured equipment, supplied or designated by the procuring activity . 3.3.6 Interference Control - The generator of radio interference by the equipment and the vulnerability of the equipment to radio inter- ference s from the f * hplif ie

8、r -Power Supply AM-h606/ASN-75; Compensator , Electronic hgnetic Compass CX?-1142/kSN-75 (optional); Control, Compass Set C-802IJASN-7s and Transmitter , Remote Compass Type ML-2. (without compensator, optional) The Compass Set AN/ASN=7S(*) shall provide of a GyTOScOpe, Directional. Displacement 3.L

9、1 - .- - -5- - I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-81412 (WP) accurate stabLlized signals of the heading of an aircraft through 360 degrees in azimuth, The control azimuth signal shaU be presented by precision transmitting synchr

10、os as outputs for indicators, navigational and accessory equipments. for an automatic pUot is available from the synchro transmitter in the directional gyro. it shall function as a magnetically slaved compass controlled directional gyro in a tlSlavedlf mode or as ailFreddi.rectional gyro with latitu

11、de connection for the effect of the earths rotation in a “Free11 gyro mode, The randomdifift of the compass set ANjASN-75(*) shal not exceed 5.5 degrees per hour when operated as a free gyro compass with latitude correction, synchronizing the compass, indicator on the Control which will provide visu

12、al indication of mis- alignment between the compass and the directional wo intelligence. is required that the compass set be flsxible enough to incorporate a compass signal deviation conpensa%or or equivalent in the trammitter- gyro section of the set. The compass set A exceed 1.8 pounds. 3-5.2.3 f

13、ol-loi:ing controls : beFn shall he 3.5.2.3.1 Latittlde Control - The Pnrpljfier-Power Supply shall include a manual latitude control to set in the appropiiiate north or south latitude to permit an increase or decrease of the output signals acting to counteract the effect of the earths rota,tion whe

14、n the compass set is operated in the “Free Gyroti mode. 3.5.2.3.2 Hemisphere Selective Switch - The Amplifier-Power Supply shall have a hemisphere switch to per compass controlled direction gyro, or free directional gyro with correction for the effect of earths rotation. The control shall also provi

15、de a manual setting of the set to any heading and a synchronizing indicator. -7- c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Size - The dimensions of the Control shall be in - 3.5.3.1. accordance with Figure 7. 3.5.3.2 Weight L. The weight of t

16、he Control shall not exceed. 2,25 pounds, 385.3.3 3.5.3.3.1 Controls - The Control shall have the following controls: Synchronizing Indicator - The arrangement of the synchronizing indicator shaU be such that when the gyro output signal is less than the conqess transmitter signal, the pointer of the

17、 synchronizing indicator shall be to the left of its center (synchronized) position. the poinhr is to the right of its center position, the gyro output signal shall be greater than the cornpass transmitter signal. of the pointer shall correspond to a signal difference of +7 degrees. Perceptible indi

18、cator motion shall occur at a maximm current of 15 micro- qerea Exxirmm deflection shall occur at a nlaxirmua of 200 microamperes, synchronizing knob which shall change the output signal at a rate of 720 degrees per minute. shall cause an increase of the output signal. shall be a “PUSH TO SEP1, such

19、 that the output signal cannot be inadvertently changed. When M;u;imum deflection 3.5.3.3.2 Synchronizing Knob - The Control shall include a Clockwise rotation or deflection to -the right The synchronizing knob 3.5.3.3.3 bde Selector Switch - The Control shall include a manually operated two positio

20、n switch (toggle) for the selection of “Free“ or ltSLavedjt gyro modes of operation. lighting in accordance - wi h Specification KU-P-7788. 3.5.3.3.4 Li hti - The compass control panel shall incorporate 3.5.3.3.5 Output Transmitting Synchros - The electrical character- istics of the output synchros:

21、 The synchro shall be capable of controlling three (3) synchro receivers Type 2V-ll TRAC of NIL-C0020708/103. The outpit resistance shall be one ohm or less. sensitivity shall be 206 millivolts per degree and 11.8 volt leg ta leg. The 3.5.3.3.4 klmnting - The Oontrol shall be mounted as indicated in

22、 Figure 7, containing a mounting plate in accordance with NIL-C-6781 and mounting plate fasteners in accordance with MIL-F-25173. 3 3.4 Conpass Transmitter - The Compass Transmitter shall The use of the magnetic or the conform to Specification MIL-T-19576. electronic compensator shal be specified in

23、 accordance with 6.8 and Figure 9 or LO. -. 8 - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-BLqLZ 66 7777706 OL43L80 2 3.5.5 Compensator, Electronic, Magnetic Compass - The Compensator CN=1142(+t)/ASN-75 shall electronically compensate th

24、e directional signals of the Remote Compass Transmitter when corrections for one and two cycle errors are required. eliminate errors caused by magnetism, north-south and east-west, and compass set assembly transmission. The corrective action shall 3*5*5*1 3.5.5.2 Size - The dimensions of the Compens

25、ator shall be in Weight - The weight of the Compensator shaU not exceed accordance with Figure 11. 1.3 pounds. 3.5.5.3 i%unting - The Compensator shaU. be mounted as indicated in Figure U and contain mounting plate fasteners in accordance with NIL=F-213 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibi

26、lity for inspection - Unless otherwise specified in the contract or purchase order, the supplier is responsible for the perf ormance of all inspection requirements- as specified herein. as otherwise specified, the-supplier may utilize his own facilities or any commercial laboratory acceptable to the

27、 Government. reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. cation shall be subjected to the following tests to determine cowliance with all applicable

28、 requirements: Except The Government 4.1.1 Classification of Tests - Items covered by this specifi- (1) Preproduction Tests (2) Initial Production Tests (3) Acceptance Tests (4) Life Tests 4.2 Preproduction Tests - Preproduction tests shall be made on an equipment representative of the production eq

29、uipments to be supplied under the contract. responsibility of the contractor and shall be conducted in accordance with the approved test procedure of 4.6. procuring activity shall be advised when tests are to be conducted so that a representative may be designated to witness or supervise the tests w

30、hen so desired. all required tests shall obtain the services of a comercial testing laboratory acceptable to the Government. Preproduction tests shall be accomplished under the The government inspector and the Contractors not having adequate facilities to conduct -9- Provided by IHSNot for ResaleNo

31、reproduction or networking permitted without license from IHS-,-,-4.2.1 Preproduction Test Data - The contractor shaU. submit On first production contracts this data shall aU, data collected in conducting these tests to the procuring agency for review and approval. include a list of ail electrical a

32、nd electronic parts giving their specified voltage, current and temperature rating and the applied circuit voltage, current and ambient and surface temperatures. surface temperature shall be obtained under the extreme high temperature operation condition. Scope of Tests - Preproduction tests shall i

33、nclude all tests deemed necessary by the procuring activity to determine that the equipment meets the requirements of this specification and the contract. Preproduction tests shall include interference tests in accordance with Specification Ia-1-6181 and all the tests of this specification. sample s

34、hal be by the procuring activity upon satisfactory completion of ail tests. approval of the preproduction sample. equipment prior to the approval of the preproduction sample is at the contractors orrm risk. retained by the contractor for his use in the fabrication and testing of equipment to be subm

35、itted for accephnce. not be considered as one of the equipments under the contract. The ambient and 4.2.2 402.3 Preproduction Approval - Approval of the preproduction No production equipments shall be delivered prior to the Prefabrication of production The approved preproduction shample shall be “he

36、 preproduction sample shail 4.2.4 . poduc tion Equipinents - Equipmenks supplied under the contraot shall in *ail1 respects, including design, construction, workman- ship, performance and quality, be equivalent to the approved preproduction sample. tests as imposed on the preproduction sample. with

37、the above shall constitute cause for rejection and for equipment aiready accepted by the Government, it shall be the obligation of the contractor to make necessary corrections as approved by the procuring activity. Each equipment shall be capable of successfully passing the same Evidence of non-comp

38、liance 4.3 Itnitid Production Tests - One of the first 10 produckion equipments shall be selected and sent at the contraclarts expense to a designated Government laboratory for tests. selected by the procuring activity after the equipinent has successful passed all individual tests. selected for thi

39、s tes%. This equipment SU be The preproduction sample shall not be 4.3*1 Scose of Tests - “his equipmentmay be subjected to any and ai1 tests the procuring, activity deems necessary to assure that %he production equipment is equivalent .to the previously approved preproduction sample in design, cons

40、truction, workmanship, performance and quality and that it meets al1 applicable requirementxi. - 10 - -CS_-_ _ I-7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-BLLILZ bb m 7777706 OLLI3LZ b m 403.2 ment submitted for Initial Production Tests

41、 the contractor shall also submit such accessory material and data necessary to test the equipment. Accessory Material .I In addition to the complete equip- L.3.3 fnitial Produotion Sample Approval - Approval of the initial Production sample shall be by the procuring activity upon satisfactory compl

42、etin of ail tests . defect made evident during this test shall be corrected by the contractor to the satisfaction of the procuring activity. Production sample to pass any of the tests shall be cause for deliveries of eqdpment under the contract to cease until proper correction action is approved and

43、 acconplished. Corrective action shall also be accomplished on equipment previously accepted when requested by the procuring activity. Ar$ design, material or performance Failure of the Initial 4.3 *4 Reconditioning.6f Initial Production Test,Sample - On completion of the initial production test the

44、 equipment shall be reworked by the contractor by replacing all wear or damaged item. the contractor shall resubmit the equipment for acceptance. After reworking, 4.4 Acceptance Tests - The contractor shall furnish all samples and shall be responsible for accomplishing the acceptance tests. All insp

45、ection and testing shall be under the supervision of the govern- ment inspector. Contractors not having testing facilities satisfactory to the prowing activity shaW engage the service of a comercial testing laboratory acceptable to the procuring activity. The contractor shall furnish test reports sh

46、owing quantitative results fr all acceptance tests. the contractor or laboratory, as applicable. material during the course of manfacturt3 shall not be construed as a guarantee of the acceptance of the finished product. shall consist of the following: Such reports shall be signed by an authorized re

47、presentative of Acceptance or approval of Acceptance tests (1) Individual Tests (2) Sampling Tests (3 tiebiability Assurance Tests (4 I Special Tests Individual Tes,$s - Each compacs set submitted for acceptance shall be subjected to the individual tests. be adequate to determine compliance with the

48、 requirements of material, workmanshi?, and operationa2 adequacy. accepted sWi have passed the following tests: 4-4.1 These tests shall As a mhhum, each equipment Eramination of Product 4.4.1.1 Power Consump tion 4.4.1.2 Synchronization k*k*1*3 Slaved Accuracy 4.4.1-5 Slaving Rate 4.4.1.4 Gyro Drift

49、 4.4.1.6 Manufacturing Run In Test 4.4.1.18 w. bu- -. . $: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-C-LLlL2 bb = 77777Ob OL43L3 MIL-C-UU (W) 4.41.1 Exaniination of Product - Each component of the cornpass system shall be examined carefully to determine that the mterial. and workinanship requirements have been met. 4.4.1.2 Power Consumption - The