1、I- Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be address to: Ordnance Station, Standardization/Docuentation Division (5241, Tndian Head, Mil Standardization Document Improvement Proposal (DD Form I426 ) app
2、earing at the end of this document or by letter. Commanding Officer, Navel 20640, by using the self-addressed r MIL-P-82LI27C 13 E 7977706 0360372 O E MILITARY SPECIFICATION POWER UNIT (For Torpedo Mk 46 Mod I) This specification is approved for use by the Naval Sea Systems Command Department of the
3、 Nayy, and is available for use by all Departments and Agencies of the Department of Defense. I. SCOPE - b5- rl MIL-P-YC (os) 13 VAFtCH 1985; SUPERSEDING iiIL-824 2713 ( OS ) 2 May 1969 and Amendment 3 13 May 1974 1 .I Scope. This specification covers the requirements for the procure- ment of two ty
4、pes of power units (see 6. i .2) . 1.2 Classification. The power units covered by this specification shall be of the following types, as specified (see 6.2): a. Type I shall be in accordance with DL 2539015. b. Type II shall be in accordance with DL 2557500. 2. APPLICABLE DOCWNTS 2.1 CaveliMierit do
5、cuments. 2.7 .I Specifications and Standards. Unless otherwise specified (see 6.2), the following specifications and standards of the issue listed in that Issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation, form a part of this specificatio
6、n to the extent specified herein. SPECIFICATIONS MILITARY FSC 1355 THIS DOCUMENT CONTAINS -t;8 PAGES i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82427C 13 M 7977906 0360373 2 1-82427C (os) STAVBARDS YILITARY MIL-STD- I 23 Marking Por Ship
7、ment and Storage 2.1.2 Other Government documents, drawings and publications. The following Government drawings form a part of this specification to the extent specified herein, DL 1330425 DL 2539015 DL 2557500 2539026 253931 1 2540730 255751 1 253901 6 Power Unit, Shipping (Packing) Condition and a
8、ll documents listed thereon Power Unit, and all documents listed thereon Power Unit, and all documents listed thereon Housing Yodule No. 7 Power Unit Control Group !Jose Section Power Unit Test Set Housing, Power Controller ( Copies of syecifications, standards, drawings and ?ublications required by
9、 suppliers in connection with specific Drocurement functions should be obtained from the procuring activity or as directed by the contracting officer . ) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this sgeci
10、fication shall take precedence. 3 R,EQTTImmNTs 3.1 . First article sample. Unless otherwise specified in the contract or purchase order, a sample shall be subjected to first article imspection (see 4.3 and 6.2). 3.2 Basie requirements. 2 Provided by IHSNot for ResaleNo reproduction or networking per
11、mitted without license from IHS-,-,-flIL-P-ZLI27C 13 9 7777906 036037LI i.I 9 MIL-P-82427C (OS) 3.2.1 Materials and treatments of materials and parts. Unless otherwise specified in the contract, all materials and treatments of materials ani! parts used in manfacture of the power unit shall be in acc
12、ordance with DL 2539015 or DL 2557500 (See 6.2). 3.2.2 Unless otherwise specified, all requirements of this specification apply both to Type I and Type II power units. 3.3 Performance requirements and product characteristics. - NOTE: The Column I numerical values of this specification shsll be appli
13、cable to the initial quality conformance tests of 4.7 performed on a unit after its original calibration or after a later recalibration. cable to all subsequent quality conformance tests except those tests where other values are specified. The Column IA values shall be appli- The Column IB values sh
14、all be applicable when specified in TABLE V or TABLE VI. tests of 4.5.2.4.2 and when specified in TABLE V and TABLE VI. When testing for conformance to Column IA, IB, or TI requirements, those parameters for which values are not specified shall meet values specified for Column I. Minimum or maximum
15、values apply to absolute values only (i.e., -15.6 volts direct current (vdc) is greater than The Column II values shall be applicable to the -15.1 VdC). Inputs. The following inputs shall be provided to power un ts: 3.3. I .I Input d4 powr rquiremts. Input dc power requirements to power unit shall b
16、e as follows: a. Voltage requirements: CO1Zimn I I. Power supply section +40.0 +6,0 -4.0 vdc +40 vdc -40 vdc -40. O vdc 2. Actuator controller section +40 vdc +40.0 - + 0.5 vdc -40 Vdc -40.0 - + 0.5 Vdc -b . Transient requirements : Maximwn transient voltage fluctuation from the average absolute val
17、ue of 1-40 vdc or the -40 vdc sources. None COlUniii -11 +bo. O tg: 8 vdc -40.0 vdc +40 + 1 udc - -40 - + I VdC None 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82427C (OS) Cglumn II Column I c. Current requirements: 1. Power supply secti
18、on: +40 vdc 0.5 to 3.0 amperes (amps 0.5 to 4.0 amps 2.0 to 6.0 amps -40 vdc 1.5 to 5.0 amps Additional pulse current for exploder arming (3.3.2.3) from each 40 vdc supply 2.0 to 2.7 amps 1.0 to 3.3 amps P 2. Actuator control ler section: . -* * L 0.5 to 2.9 amps. +40 vdc 1.05 to 2.35 amps -40 vdc 0
19、.95 to 2.25 amps 0.4 to 2.8 amps. 3.3.1.2 Signal inputs. i COMPUTER ENABLE Act i vated Not activated -15.0 f 0.5 vdc 0.00 f 0.25 vdc -15.0 f 0.8 VdC 0.00 f 0.25 vdc PITCH DRIVE Up Command Down Command -0.75 to -2.75 vdc 30 k to 47 k to GRD. -1.0 to -2.4 vdc 30 k to 47 k to GRD. YAW DRIVE Left Comman
20、d Right Comand -0675 to 2.75 vdc 30 k to 47 k to GRD. -1.0 to -2.4 vdc 30 k to 47 k to GRD. ROLL DRIVE CCW Command CW Command -1.0 to -2.4 Vdc 30 k to 47 k to GRD. -0.75 to -2.75 vdc 30 k to 47 k to GRD. 1.1.2 Power Outputs, - !SOTE: Tolerances sand ranges for Colwruis I. IA. IB, and II requirementl
21、s are tabulated in TABLE I. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82427C 13 7777906 03b0376 WIL-P-82427C (OS) 3.3.2.1 DC power outputs. The power unit shall supply the following dc output voltages at the speci.fied load currents: Lo
22、ad Voltage +30 VDC - 120 to 220 ma (milliamperes) 170 to 295 ma 20 to 70 m.a +i5 VDC +5 VDC 365 to 569 ma I90 to 240 ma -30 VDC GUIDAXCE -30 VDC 925 to I075 ma -15 ?DC 3.3.2.2 AC output power. The power unit shall supply an ac ou-ut with the following charactertics at the specified load: .Output o.
23、*+1+1 * .m * .N *. O0 el +I I II II II II s QI P P 3 s L ill 3 O -I c, cc QI L. r- ai 3 O -I 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-l v) aJ U c rb L aJ O c, -0 S rb v) c, 3 Q c 3 O W c, E aJ L *I- 3 U a, ac P- n n s - _ ._ MIL-P-82427C 13
24、7777706 0360379 3 MIL-P-82427C( OS X 2 2 E MInN 00 NLninO riI-lOd Ocud e-4- . I +1+1+1 +1+1 I +I a H . dd0M ONd MC I +I +I I +I- I x x rb E E i H I I 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82427C 13 = 7797906 O360380 T W MIL-P-82427C
25、( OS) EXPLODER ARM GROUND FIGURE 1. Exploder srr; circuit 9 35 OHMS 200 w 1% i40 VDC Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-P-Zq27C 13 W 737770b 03b031 1 W MIL-P-82427C (OS) c. When the 25 ohm resistor is removed, the EXPLODER ARM volta
26、ge shall not vary more than 0.5 vdc. 3.3.2.4 Alternator regulator output. The power unit shall provide a SHUNT FIELD output voltage that is a function of the voltages supplied to the +40 vdc and -40 vdc inputs. trlith a 20 ohm, 1 percent, 150 watt resistor connected between the SHUNT FIELD and FIELD
27、 RETURN terminals, the output voltage sall be as specified below: - NOTE: The 20 ohm resistor shall Be connected only during tests of this funct-ion. The unit should be operated for about 15 minutes , or unti 1 thermal equilibrium, without shunt field load connected. a. With the input voltage at 45.
28、0 +0.2 -0.1 vdc and -37.5 k0.5 vdc, the SHUNT FIELD vol tage shall be +I .5 vdc maximum. b. With the input voltages at +40.0 to k0.5 vdc and -37.5 k0.5 vdc, the SHUNT FIELD voltage shall be +35.0 vdc. c. With the input voltage at +40.0 k0.5 vdc and -42.5 +0.5 vdc, the SHUNT FIELD voltage shall be -2
29、4.0 vdc. d. With the t.40 vdc input voltage at +40.0 k0.5 vdc and the -40 vdc input adjusted for a SHUNT FIELD voltage of 0.0 10.2 vdc, the -40 vdc input shall be -40.6 VC. 3.3.3 Control ler outputs. 3.3.3.1 Steady state steering outputs. The power unit shall provide six steering outputs that respon
30、d to the PITCH DRIVE, YAW DRIVE, and ROLL DRIVE signal inputs (3.3.1.2). With a 50 +4 ohm, 50 watt resistor connected from each of the six steering outputs to ground, the following ouput voltages shall exist for the specified conditions: 3.3.3.1.1 Elev Up (-) output. Input a. PITCH DRIVE (Up Command
31、) b. PITCH DRIVE (Down Command) Steering output -35.5 vao -0.05 vrlc 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-P-82427C 13 7777906 0360382 3 M1-P-82427C (OS) 3.3.3.1.2 Elev Down (+I output. Input a. PITCH DRIVE (Up Cornand) B. PITCH DR
32、IVE (Down Command). 3.3.3.1.3 UPPER RIGHT.(-) oU0.-. . i.n -mfnimuni- . . -Condftion - (See6;3.l) Ready Nonoperatihg - . -0.2 - . . - and . Ready MIL-P-82427C( OS) Frequency 1 5.to 17 .17 t 500 TABLE rI *See FIGURE 4 for axes of power unit. Provided by IHSNot for ResaleNo reproduction or networking
33、permitted without license from IHS-,-,-MIL-P-82q27C 13 W 777770h .036037 h W MIL-P-82427C (OS) VERTICAL UP t VERTICAL DOWN Note: The left side is the side on which the module number appears. Type II power units consist of two modules, which are designated (forward to aft) as A6A1 and A6A2. FIGURE 4.
34、 Axes of the power- unit . 18 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P- 82427C ( OS ) Condi ti.on (see 6.3.1) Ready nonoperating 3.4.3 Acceleration. The power unit shall be capable of Withstanding accelerations speci f ied in TABLE TV. r
35、 Magni tude. Acceleration (.g s J Direct ion 25 210% Loncji tudinal Forward TABLE IV 3.4.4 Temperature. The power unit shall be capable of withstanding temperatures for the fol lowin9 specified conditions: 3.4.4.1 Nonoperating and ready nonoperating. The power unit shall be capable of witfistandinq
36、ambient temperatures between -45F and 140F wherein the duration of the upper temperature does not exceed four hours at any one time, and the temperature is stabilized in a temperature range of 60F to 95F prior to any performance test. The power unit, when operated in an environment with a temperatur
37、e between 32F and 98“F, shall meet the performance and product characteristics of this specification Column TI values) after exposure to temperatures between 0F to 140“F, for a period wherein the duration of the upper temperature limit does not exceed four hours at any one time. 3.4.4.2 Ready and op
38、erating. 3.4.5 Pressure. The power unit shall be capable of withstanding 3.4.6 Humidity. pressures of from 2.7 to 20 psia. relative humjdity at +110 degrees F for eight hours without degradation of finish or functional capabilities. 3.5 Workmariship. Workmanship and finish shall be of sufficiently h
39、igh grade to ensure satisfactory operation consistent wfth requirements of* this spectfication. All parts used in the power unit shall be thoroughly clean and free of excess materials, chips, and loose or spattered foreign materal s. sample, subject to any qualifications stated in the Governments no
40、tice of approval, shall 6e determinative of the requirements of the contract relative to workmanship insofar as not specifically covered by appl icable specSficatons. The power unit shall vlthstand :exposurh to 95 gercent Standards of workmanshp exhibited n any approved preproduction Provided by IHS
41、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-FIL-P-82427 (OS) 4. QUALITY ASSURANCE P3OVISIOhTS 4. I Responsibility for inspection. Enless otherwise specified. in the contract or purchase order (see 6.21, the contractor is responsible for the performance of all i
42、nspection requirements as specified herein. Rxcept as otherwise specified in the contract or order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, udess disapproved by the Government. inspections set forth in the s
43、pecification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. The Cavernment reserves the right to perform any of the 4.2 Classifications of insaection. Inspections of the power unit shall be classified as follows: a. First article inspe
44、ction I. 2. First article tests (see 4.5) First article sample (see 4.3.1) b. Periodic production inspection 1. Periodic production sampling (see 4.3.2) 2. Periodic production tests (see 4.6) c. Quality conformance inspection I. 2. Quality conformation sampling (see 4.3.3) Quality conformance tests
45、and examinations (see 4.7) 4.3 Sampling. 4.3.1 First article sample. A sample of three power units shall be . subjected to tests detailed in 4.5 at an activity desimated by the procuring activity. in the sample. Accentance of the sample shall be based on no detects 4.3.2 Periodic production sampling
46、. Periodic production samples shall be selected from units having satisfactorily passed the cpality conformance tests and examinations of 4.7. tests of 4.6 at an activity designated by the procuring activity. periodic production sampling shall be as follows: %ese samples shall be subjected to the 20
47、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, MIL-P-82427C 13 M 9999906 0360392 6 M MIL-P-824270 (OS) a. Ste 1. Upon initat-ton of production, randomly select one unit selected from 3 consecutive groups, shift to Step 2. selected shall 6e number
48、ed consecutively; starting with Sample Number 1. from eac + group of 30 units. Upon satisfactory compliance of samples Each sample so b. -Step 2. Randomly select one unit from each group of 70 unlts. Continue with-Step 2 for the balance of the contract or until a defective unit is found. Each sample so selected shall be numbered consecutively, starting with a sample number one greater than the highest sample number selected in Step 1. 4.3.2.1 Defective unit. any group, acceptance of all unPts on hand shall be withheld and the contrac
