1、K- . I. *. . MIL-k869IA (ASG) 17 OCTOBER 1955 Scpersedinl: MIL-I-8631( Aer) 15 December 19% . - - MILITARY SPECIFICATION I. I INDICATOR, RzIMlJTH; ID-307/ARN This specification has been approved by the Department . , of the Air Force and by the Navy Bureau of Aeronautics. 1. SCOPE 1.1 Sco e.- This s
2、pecification covers one type of airborne instrument, designated l Major unit Type designation Size - - deicht. Azimuth indicator ID-307/ARN 3-1/4 in* Sq by 3.0 lb 6-5/8 in. lg 2c APPLICABLE DOClr73ENTS 2.1 The following specifications, standards, and drawings, of the issue In effect on date of invit
3、ation for bids, form a part of this specification to the extent specified hereint SPEC IFTCATIONS Hili tary ; MIL-C-C;OlS c Connectors, Electrical, “AN“ Type MIL-E-5272 Environmental Testing, Aeronautical and MIL-E-5400 Electronic Equipment, Airbone, General MIL-F-14072 Finishes for Ground Signal Eq
4、uipment MIL-1-6181 interference Limits, Tests and Design MIL-1-7028 Instruments and 1.astrument Boards; Aircraft, MIL-L-25l.42 Luminescent Ifibterial, Fluorescent MIL-N-18307 Nomenclature and Haneplates for Airborne Electronic and Associated Equipment MIL-P-5633 Packaging and Packing of Aircraft Mat
5、erial in Steel Shipping Containers MIL-$7742 Screw Threads, Standard, Aeronautical EIL-T-5422 Testing; Environmental, Aircraft Electronic Equipment Associated Equipment, General Specif;Lcation for Specification for Requirements, Aircraft E2ectrical and Electronic Equipment installation of . - + - .
6、,. ._. . ,. J - .- . 6 -. I._. . - ,.- .- . ,._I _ i i -. .,._-_. . 1: . - . -_ - . , . . . _. . . -.-.- - . . . . . . . . . . _._ . . :=.:5: _._-.-_- . A . . ._- . - _ . - . -_ . - - ,-.I _- _I.-._ . r- -qual to 24 degrees par second ti2 percent. 3.7.5 Service period.- The instrumente shall have a
7、reliableoperating period of Parts requirFng ., servicing or replacement within this interval to renew +his se.rdce period shall be 3.7.6 Total life.- The instkents shall have a Iittnimum total operating We of Parts requiting I- . -y . II i . . i . . _. . . . . . . . . . . -_ - . -.- . - . . . Provid
8、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. c - - .- MIL-I-b7LA bb W 7973706 0326773 7 .- 11-8691( ASO) 3.8 - Identification of product.- 3.8.1 Nomenclature and namepl6tes.- Nomenclature assigrment and nameplate approval shaU 3.8.2 patent information
9、.- Patent numbers, patent license notices, or any reference to either shall not appear on a nameplate. contractual obligation to a licensor or because of the contractorts interpretation of the patent. statutes, the notice may be applied only under the followiny conditions for -. requirements of Spec
10、ification MIL-N-18307. If the contractor considers it . -. necessary to apply such a patent notice initially to the equipment because of some secret an? confidential articles of equipment: ._* (a) Thenotice shall be supplied as part of a tag, label, or sticker which may be easily removed or torn off
11、 by the Government Inspector. . . . 1 . ._.- . - . ._-.-.I . I . . .- . . -. -.- i . . .: -. . : - , - -.- . . -._.-.- . . .- (b) lhe appe; -ance and location of the tag, label, or sticker shall be such as to render unlikely the overlooking af its removal by the . Government inspector at time of acc
12、eptance inspection. .(c) The contractor shall institute a checkup as part of the procedure of packing for shipment to assure that the notice has been removed and shall point out to the Govermnept Inspector any articles frail which the notice has not leen removed, . - , ,- . (d) . ?he tag, label, or
13、sticker shall not bear the Government-type designation of the article ofequipmat to which it applies, 3.9 W0rhanship.- Workmanship, fabricatian, and manufacturing processes shall . confonn to %he requirements of Specification I4IL-E-!reosor one revolution of the resolver, and every 30 degrees for on
14、e revolu- tion of the pointer,.and determined by the resolver nulls, shall not exceed 20.8 degree when tested by feeding the harmonic resolver output to a servo amplifier which win drive the indicator ta the null.positions of the harmonic resolver. -b.2.1.2.6 Differential synchro transmitter accurac
15、y. - With the hanonic syncbo resolver servoed %o the MO-degree bearing, the differentbl SU be set to elect-c . - maintaining an accuracy of t0.L degree for the differential synchro with readings taken The error in angular accuracy measured . . zero. The abs.olute e1ect:ical zero position may be ad;i
16、usted slightly tc insure eveiy 30 degrees in bearing. 4.2.l.27 Fundamental. synchro resolver accuracy.- With the harmonic synchro . resolver.sem . . b.2.l.3. J e: - - , :I . - - -. . _._-_ Iii.%_ -_I_ I! - - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
17、m IHS-,-,-. procuring activity. . ._.A . . . . :. . . i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i i -.- - . MIL-I-b7LA 66 W 977970b 0326977 W . 4.3.2 sampling tests.- Smpling tc?;jtJ shall be conducted by the contractor and shell include a pe
18、rformance check at ar,bisr,t laboratory conditions. This test may also include any of the other Preproduction testo deemed necessary to detenine conformance of the equipment with the requirements of this sl;ecificati tt 13 mqaapteri hatt, $Il b rsquhd 1 prep ecbd to the fiproduc speeificatianr The i
19、nvltat ection for these tests. A aie requi,rmontrr or - Standard conditions -fer to the foih epprc an the fact that the Govern- ment may haw fomaated, furnished, or in amy way supplied . te said drawings, specifications, or other data is not to be regarded by implication or othenrise as In any manne
20、r licensing #e holder or aqy other person or corporation, or conveying any rights or permission ta manufacture, use) or seli any patented Invention that may in aw way be related thert3eta. When Government drawings, specifications, r . ,_._ . ._ . - . , . ._-.- . ,_. -.- . c -. -. . _.I_- -. . _, . ._._-.- . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
