1、/3?7 MIL-D-Lb22A 58 W 7977906 0373539 3 W MIL-D-81622A(AS) 17 January i974 Superseding 15 February 1969 -L. MIL-D-81622 (AS MILITARY SPECIFICATION DETECTING-RANGING SET, SONAR AN/AQS-l3A This specification has beeti approved by the Naval Air Systems Command, Department of the Navy. 1. SCOPE cation s
2、hall provide a dipped underwater echo ranging system capable of rapid search of the area around the point of immersion of the transdqcer, determine the range and bearing of any objects located, and provide information to assist in classification of the object. 1.1 Scope - The equipment covered by th
3、is specifi- (See 6.1.) “1.2 Classification - The equipment .covered by .this specification shall consist of the following items: I tems Type Desi gnation Appl . Para Transducer, Sonar 3.5.1 Hydrophone, Sonar DT-299/AQS-13 3.5.1.4.1 Projector, Sonar MX-6647/AQS-I 3 3.5.1.4.2 Converter, Frequency, Ele
4、ctronic CV-1823/AQS-13 3.5.2 Amplifier, Intermediate Frequency AM-4203A/AQS- 1 3 3 . 5.3 Control , Detecti ng-Ranging Set CR6413B/AQS-13 3.5.4 Indicator, Azimuth and Range IP-780/AQS-13 3.5.5 Transini tter, Sonar T-982A/AQS-13 3.5.6 Recorder R0-358/AQS-l3A 3.5.7 Processor, Freqcency FR- 1 84/AQS- 1
5、3A 3.518 Power S G p p 1 y PP-4197/AQS-13 3.5.9 Reeling Machine, Cable, Hydraulic RL-237A/AQS-13 3.5.10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-D-Lb2ZA 5 m 497790b 0373520 m ME-D-81622A (AS) - I tems Type Designation Appl. Para. Cable A
6、ssembly and Reel Housing, Transducer Housing, Reeling Machine Ci rcui t Breaker Indicator, Bearing and Range Visor, Cathode Ray Tube Mounting (Amp1 ifier Inter- me di a te Freq ue n cy ) Mounting (Control , Detecting- Ranging Set and Indicator, Azimuth and Range) Mounting (Power Supply) Mount i ng (
7、Converter, Frequency, Electron i c ) Mounting (Transmitter, Sonar) Mounting (Processor, Frequency) Mounting (Recorder) RC-466A/AQS- 13 CW-l007/AQS- 1 3A CW-757A/AQS-13 SA- 1263/AQS-13 ID-786/AQS-10 MX-3275/AQS- 1 O MT-2202/AQS-1 O MT-2203/AQS-1 O MT-2397/AQS-l O MT-3335/AQS-13 MT-3972/AQS-l3A MT-403
8、5/AQS-l3A 1.3 Associated Equipment - This equipment shall operate with the associated equipment listed in 6.8, 2, APPLICABLE WCUMENTS *2. 1 General - The following documents of the issue in effect on the date of invitatlon for bids form a part of this specification to the extent specified herein: SP
9、ECIFICATIONS Mi 1 i tary MIL-C-172 Cases; Bases, Mounting; and Mounts, Vibration (For use with Electronic Equipment in Ahraft) Cable, Cord and Wire, Electrical (Shipboard Use) .a MIL- C-9 1 5 G 2 3.5.11 3.5.12 3.5.13 3.5,14 3.5.1.5 3.5.16 3.5.17 3.5,18 3.5.19 3.5.20 3.5.21 3.5.22 3,5,23 Provided by
10、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ME-D-81622A (AS) MS25245 Connections Input Power Airborne Electronic Equipment; 28 VDC, 115 V Single Phase AC, or 11
11、5/200 V 3-Phase AC, or combinations Meter, Time Totalizing, 28 VDC MS90386 PUBLICATIONS Naval Air Systems Comnand EI-451 Avionics Ins tal 1 ati on Instructions for Detecting- Ranging Set, Sonar AN/AQS-l3A ET-451 Bench, Preflight, and Flight Test Instructions for Detecting-Ranging Set, Sonar AN/AQS-l
12、3A , 2.1 .1 Avai 1 abi 1 i ty of Documents (1) When requesting specifications, standards, drawi ngs, and pub1 i ca ti ons , refer to bo th title and number. Copies of this specifi- cation and applicable specifications . . required by contractors in connections .with specific procurement functions ma
13、y be obtained upon application to the Cornanding Officer, Publications and Forms Center, Code 105, 5801 Tabor Avenue, Philadelphia, Pennsylvania 19120. 3. REQUIREMENTS 3.1 Preproduction - This specification makes provisions for preproduction testing 3.2 Parts and Materials - In the selection of part
14、s and materials, fulfillment of major design objectives shall be the prime consideration. In so doing, the following shall govern: (1) Microelectronic items shall conform to requirements specified herein. (2) Other parts and materials requirements shall conform to Speci fica ti on MIL- E-5400 . (3)
15、Non-repairable subassembl les, as out1 ined in Specification MIL-E-5400, shall be used when -practicable. The general size of the sub- assembly, and the amount of circuitry to be included theretn shall be approved by the procuring activity. Non-repairabqe sub- assemblies must be reliable, (See 6.5,)
16、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-*D.-81622A( AS) - Unit Type of Meter PP-4197/AQS-13 MS17322 RL-237A/AQS-13 fi1 7321 FR-1 84/AQS- 13
17、A 617322-6 R0-358/AQS-l3A MS17322-6 136 dB above 1 microvolt per MHz at 0.68 MHz; 1.04 dB above 1 microvolt per MHz at 25 MHz. The broadband radiated interference measured by the methods of MIL-1-6181 shall not exceed the limits of straight line curves plotted an semi-log paper between the following
18、 points: 120 dB above 1 microvolt per MHz at 0.15 MHz; 76 dB above 1 microvolt per MHz at 25 MHt; and from 54 dB above 1 microvolt per MHz at 25 MHz; 70 dB above 1 microvolt per MHz at 120 MHz; 61 dB above 1 microvolt per MHz at 1000 MHz. 3.3.7 Maintenance Provisions and Field Testing - Provisions f
19、or maintenance shall be specified in Specification MIL-E-5400. Specific test points and test facilities shall be provided to the greatest extent practicable for ease of field testing and maintenance. 3.3.8 Nomencl ature and Namepl ates - Nomencl ature and serial number assignment, nameplate approval
20、 and equipment identification shall be in accordince with Specification MIL-N-18307. . 3.3.9 Standard Condi ti ons - The fol 1 owi ng conditions shall be used to establish normal performance characteristics under .sta.ndard conditions and for making laboratory bench tests. Temper a tu r e Al ti tude
21、 Norma 1 Ground Vi bra ti on None Humidity Input Power Vol tage Hydraul ic Input Return Line Pressure Room Ambient (25OC - t5OC) Room Ambient up to 90% relative humidity 115 t1.0V AC and 27.5 10.5V DC 5.6 spm LO.1 gpm at 2550 psi 25 psi maximum at 5.6 gpm 3.3.10 Service Conditions - The equipment sh
22、all operate satisfactorily under any of the environmental service conditions or reasonable combination f these conditions as specified in Specification MIL-E-19400 for the he1 icopter-borne equipment, except as modified herein. Sonar AN/AQS-l3A shall meet the shock requirements of MIL-E-19400 except
23、 for the Reeling Machine, Cable, Hydraulic; Cable Assembly and Reel; Transducer, Sonar; and Housing, Transducer. a sonar cable, which will be inserted through the wiper assembly of the transducer housing, and shall have attached the transducer suspended from the reeling machine in the normal seated
24、position. be applied at the reeling machine mounting points and shall be as follows: Crash safety shock - To be based upon ultimate strength of the reeling machine frame and not to be less than 10 g acting down, 10 g acting forward, and 5 g acting faterally; Operating shock - To be based upon yield
25、strength of the reeling machine frame and not to be less than 6 g acting down, 6 g acting forward, and 3 g acting laterally. “3 . 3.10.1 - Shock - All units of theetecting-Ranging Set, The test set up shall include The shock loads will 7 Provided by IHSNot for ResaleNo reproduction or networking per
26、mitted without license from IHS-,-,-,- and-in addition, the exposure time shall be increased to 200 hours on the fol lowing units : - Unit Nomencl ature Cable Assembly and Reel RC-466A/AQS- 1 3 Hydrophone, Sonar DT-299/AQS-l3 Projector, Sonar MX-6647/AQS-13 Housing Transducer CW-1007/AQS-l3A Set and
27、 dom for Cab 3.3.10.3 Vibration - All units of the Detecting-Ranging Sonar AN/AQS-l3A shall meet the vibration requirements of Curves II III of Specification MIL-E-5400 except as modified herein. The pre- nant frequency of the SH-3D helicopter of 17 Hz shall be substituted resonarit frequency occurr
28、ing below 20 Hz in each of the 3 mutually perpendicular axes. The test set up for these units shall include. a system for the purpose of cycling the cable during vibration testing simulated transducer load of approximately 150 pounds applied to the 3.3.10.4 Humidity - All units of the Detecting-Rang
29、 Sonar AN/AQS-l3A chal 1 meet the humidity requirements of MIL-E49400 the Recorders chart paper. t any Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(3) DC Power 28V, Category “BI 180 Amps (Emergency Use Only) (4) DC. Power 28V, Category “B“ 40 Amp
30、s (Sonar Gui 11 oti ne) (5) DC Power 28V, Category “BI 1.5 Amps (Intermediate Speed) 3.3.12.1 Undervol tage Protection - The equipment shall not be damaged by voltages below the minimum specified herein and shall auto- mati cal ly resume normal operation when the vol tage returns within limits . 3.3
31、.12.2 Underfrequency Protection - The AN/AQS-l3A equipment shall withstand operation at 330 Hertz for 1 minute .and resume normal operation when the power returns within proper limits. 3.3.1 2.3 Electrical Input Power Utilization - The AN/AQS-l3A equipment shall uti li ze 11 5/200V, 400 Hertz power
32、excl usi vely , except for 28 V DC. The 28 V DC shall be used for operation of the reeling machines emergency motor, intermediate speed valve, sonar cable gui1 lotine and for illumination of the Indicator, Bearing and Range and the Reeling Machine, Cab1 e, Hydraul i c. 3.3,12.4 Electrical Input Powe
33、r Connection - Input con- nections shall be in accordance with 1625245 3.3,13 Standby Provisions - The equipment shall provide for a standby position whereby rated voltage shall be applied to the fol- lowing components : reference voltage for the servo systems, pi lots and sonar operators indi - cat
34、ion of drift sensing, reeling machine, transmitter, time delay circuit, frequency processor, and recorder. In addition, the recorder shall have an independent standby position to al low for chart movement. vacuum tube fi 1 aments, blowers, DC re1 ay supplies, 3.3.1 3.1 Separate Systems - The followi
35、ng circuits of the AN/AQS-l3A do not receive their power from the AN/AQS-l3A and may be turned on or off at any time by the pilot. Sonar guillotine, AC drift sensing and hei gh t-depth system for the automatic hover system. 3.3.14 Hydraul i c Power Requirements - Hydraul requirements for the reeling
36、 machine shall be a flow rate of 5.6 at 2550 PSI pressure. Operation of the reeling machine wiP1 not affected at the maximum flow rate of 5.7 GPM and at a pressure o The aircraft return line pressure at 5.6 GPM shall not exceed 25 at 0.0 GPM it shall not exceed 4 PSI. c power - tO.1 GPM be adversely
37、 3000 PSI. PSI and 3.4 Performance - Unless otherwise specified, values set forth to establish the -requirements for satisfactory performance apply to performance under both standard and extreme servi ce conditions , . When reduced performance under the extreme condi tion is acceptable,. tolerances
38、or values setting forth acceptable vari ations from the perfomiance under the standard conditions will be specified, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*3.4.1 shall operate from a hovering helicopter for the purpose of detecting submerge
39、d objects. The sonar transducer shall be lowered from the aircraft into the water to any depth allowed by the maximum cable length. In the active mode, there shall be three selectable active frequencies to prevent interference from adjacent sonars. Provision shall be made for trans- mission and rece
40、ption of CW communication signals on any of the specified operating frequencies and single sideband voice communication signals on a suppressed. carrier frequency of 8.0875 kHz. In the active mode, provisions shall be made for listening to the returning echoes from selected targets. In the passive m
41、ode, provisions shall be made for listening to signal sources from. any bearing , wi thout transmi tti ng. Provi si ons shall be made for limiting the area searched in order to facilitate tracking of targets. A graphic recorder shall be provided for displaying bathythermograph, range and ASPECT clas
42、sification information. Moving target detection capability shall be provided. Position sensing information from the sonar cable and * transducer shall be provided for the aircraft automatic hovering system. A complete Built-In Test Equipment (BITE) capability shall be provided for the purpose of pre
43、flight and inflight performance verification of the AN/AQS-l3A sonar system. These performance checks chal 1 be accomplished without external test equipment. A graphic recorder shall be provided for displaying bathythermograph, range, ASPECT classification data, and MAD magnetic anomaly traces . Ope
44、ration - The Detecting-Ranging Set, Sonar 3.4.2 Transmission Characteristics 34.21 Detecting-Ranging and C.W. Telegraphy 3.4,2.1.1 Frequency - Each equipment supplied shall be capable of three selectable operathg frequencies. The operating frequencies shall be 9.25, 10.00 or 10.75 kHz -5 Hertz, powe
45、r (3K yard or longer range sca e an ASPECT modes) as measured with the 500 foot cable and at any of the 3 operating frequencies, shall be at least 2 111 decibels (dB) ref. 1 dyne per cm at 1 yard. The sound pressure level during handkey communicate, TEST, and 1K yard range operations shall be at lea
46、st 99 dB (ref. 1 dyne per cm2 at 1 yard) at any of the 3 operating frequencies . midpoint in time of the 35 millisecond pulse. Acoustic Out ut - The sound pressure level at high _I_r%_ 3.4.2.1.2 *3,4.2.1.2,1 This measurement shall be made at the linear teed pulse shall be communication pulse width w
47、ith a pulse width between be capable of putting *3.4.2,1.3 Pulse Width - The transm either 3.5 or 35 milliseconds +15 percent. The CW chal 1 be handkey-control led. The transmi tter shat out a train or burst of pulses for the ASPECT mode 2 and 7 m. -. 10 Provided by IHSNot for ResaleNo reproduction
48、or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - - -. - . or th entire 360 degree area by alternately disilaying the north 180 dgree sector and then the south 180 degree sector, It shall be possi
49、ble to select any 180 degree sector in eight 45 degree steps. The CRT display shall be stabilized such that the top of the, display is always north regardless of the rotation of the transducer. . I .- in each of these sectors shall present a different audible tone, one from another, Provisions shall be made to disable all aural response in three any oie
