1、Specifications Military MIL-T-85 Tubing, Waveguide, Seamless Rectangular MIL- T- 94 5 Test Equipment, For Use With Electronic Equipment; General Specification Packaging and Packing of Electrical. Equipment and Spare Parts (Electronic Electrical, and Electromechanical) JAN- P- 6 58 Bureau of Aeronaut
2、ics SR-19 7 Nomenclature and Nameplates for Electronic and Associated Equipment Standards MIL- STD- 129 Availability of Applicable Documents Marking for Shipment and Storage (1) When requesting applicable documents, refer to both title and pumber. All requests should be made via the cognizant inspec
3、tor of Naval Material or Bureau of Aeronautics. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- Is- 182 7 1 (2) Copies of this specification and applicable documents may be obtained upon application to the Commanding Officer, Naval Air Station,
4、Johnsville, Pennsylvania, Attn: Technical Records Division. 2.5 specifications are in conflict, the following precedence shal apply: precedence - When the requirements of the contract, this specification, or applicable subsidiary (i) Contract - The contract shall precedence over any specification. (
5、2) This mecification - This specification shall have precedence over all applicable subsidiary specifications. Any deviation from this specification or from subsidiary specifications where applicable, shall be specifically approved in writing by the procuring agency. (3) Referenced Specifications -
6、Any referenced specification shall have precedence over all appli- cable subsidiary specifications referenced therein. All referenced specifications shall apply to the extent specified. 3. REQUIREMENTS 3.1 Parts and Materials 3.1.1 General - The equipment shall fulfill the following requirements for
7、 parts and materials: (i) Design Objectives - Minimum size and weight, simplicity of operation and an improvement in the performance and reliability of the specific functions beyond the requirements of this specification are objectives in the design of the equipment specified herein, The use of ma-
8、terials, parts, and processes other than those required by Specification MIL-T-945 shall be investigated, and when it appears that a substantial reduction in size and weight or improvement in simplicity of design, performance, or reliability can be realized by their substitution, a re- quest for app
9、roval of a nonstandard part shall be submitted to the procuring agency for consid- eration. Each request shall be accompanied by complete supporting information. (2) Selection of Parts and Materials - The fulfillment of major design objectives shall govern the selection of parts and materials. All p
10、arts and materials shall meet the requirements of Specification MIL-T-945; however, if the contractor can demonstrate that the use of such parts and materials will not fulfill the major design objectives, then parts and materials shall be used which most nearly meet or exceed the requirements of Spe
11、cification MIL-T-945. I (3) Approval for Nonstandard Parts and Materials - Approval for the use of nonstandard parts and materials shall be obtained as outlined in Specification MIL-T-945. Requests for approval must be forwarded to the procuring agency by the contractor before parts are purchased or
12、 fabricated, I (4) Workmanshie - Workmanship, fabrication, and manufacturing process shall conform to the re- quirements of Specification MIL-T-945. 3.2 General Design Requirements 3.2.1 fication MIL- T- 945 unless otherwise specified. 3.2.2 or reasonable combinations of service conditions, as speci
13、fied in MIL- T-945 except that the requirements specified shall apply only within the temperature range from -40“ to +55“ C. 3.2 3 reasonable servicing or replacement of parts. The life of such parts and parts requiring replacement within this interval shall be specified by the manufacturer. 3.2.4 c
14、ontinuously or intermittently, without necessity for adjustment or readjustment, . General - This equipment shall fulfill all applicable design and performance requirements of Speci- Service Conditions - The equipment shall operate satisfactorily under any of the service conditions, I I Total Operat
15、ing Life. - The equipment shall have a minimum total operating life of 2000 hours with I Operational Stability - The equipment shall operate with optimum performance for at least 200 hours, 2 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-r MIL-S-
16、18271 bb 97779Ob OL29686 MIL-S- 18271(Aer) 3.2.5 of parts and materials that are non-nutrient for fungus. The parts and materials shall be treated so that prior to their use in the equipment, over-all spraying of the equipment is not necessary. 3.2.6 Interchangeability - Mechanical and electrical in
17、terchangeability shall exist between similar assem- blies, subassemblies, and replaceable parts regardless of the manufacturer or supplier. Interchangeability for the purposes of this paragraph does not mean identity, but requires that a substitution of such like assem- blies, subassemblies, and rep
18、laceable parts be easily effected without physical or electrical modifications to any part of the equipment. In the design of the equipment, provisions shall be made for design tolerance to accommodate various components having the limiting dimensions and characteristics set forth in the speci- fica
19、tions for the particular component involved without departure from the specified performance. Fungus and Moisture Treatment - The equipment shall b.e moisture and fungus-proofed by selection I 3.2.7 quirements of Specification SR- 197. Nameplates and Nomenclature - Nameplates and nomenclature shall
20、be in accordance with the re- I 3.2.8 Performance 3.2.8.1 Accuracy - The equipment shall be capable of giving, within 5 percent, the same indication at suc- . cessive voltage maxima along the line. I 3.2.8.2 frequency range from 2700 to 2900 mc. 3.2.8.3 through the line when terminated in a matched
21、load. Frequency Characteristics - The equipment shall fulfil the specified requirements over a minimum Power Carrying Capacity - The equipment shall withstand a peak power of 1200 kw transmitted 3.2.8.4 StandingWaveRatio - The voltage standing wave ratio of the slotted section shall not exceed 1.05
22、to 1 when properly terminated 3.3 Detail Design Requirements 3.3.1.1 specified in MIL-T-85, shall terminate at the generator and in a UG-54/U choke coupling choke flange or equivalent and at the load end in a UG-53/U choke coupling plain flange or equivalent. The over-all size shall not be greater t
23、han 8 inches high, 6 inches deep, and 16 inches long. The weight shall not be greater than 20 pounds. 3.3.1.2 Form Factor - The slotted section shall have the same inside dimensions as RG-48/U waveguide as - The waveguide slot shall not be greater than 0.125 inch wide and 8 inches long. 3.3.1.3 Prob
24、e Carriage - The carriage shall be designed to hold the probe and shall be designed so that the probe tip may be varied in position along the slot in the waveguide by a hand control. The carriage shall be adjusted so that the probe tip moves in the slot parallel to the inside surface of the waveguid
25、e. 3.3.2 frequency range from 2700 to 2900 mc. The depth of probe tip insertion shall be adjustable. The design shall provide efficient transfer of power from the probe tip to the TS-l25/AP. Probe - A grobe designed to fit into a probe carriage shall be supplied. The probe shall cover the 3.3.3 The
26、over-all dimensions of the case shall not be greater than 8 inches wide, 7-1/2 inches high, and 16-1/2 inches long. The weight shall not be greater than 6 pounds. 4. 4.1 as follows: Transit Case - A transit case shall be provided to meet the requirements of Specification MIL-T-945 METHODS OF SAMPLIN
27、G, INSPECTION, AND TIEST Classification - The equipment specified herein shall be subject to preproduct on and inspection tests Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I I of this specification and the applicable subsidiary specifications. I
28、and the applicable subsidiary specifications and to determine that the test sets are equivalent in performance and construction to the approved preproduction sample. Any production prior to approval of the preproduction sample shall be at the contractors risk. I curing agency, however, reserves the
29、right to make additional preproduction tests other than those outlined in Specification MIL-T-945 to insure compliance with this specification and the contract, I I I MIL-T-945. In addition, the data required in paragraph 4.2.3 of Specification-MIL-T-945 shall be submitted to the procuring agency fo
30、r review and approval prior to submission of any models. or thepreproduction mdel. Prefabrication of any equipments prior to the approval of thpreproductio-model is at the contractors own risk. One approved preproduction model will be returned to the contractor for his use in the fabrication and tes
31、ting of the models to be submitted for acceptance under the contract. The pre- production model shall not be considered as one of the models under the contract; however, it may be re- worked by the contractor and submitted for acceptance as a production model. 4.3 the required tests under the superv
32、ision of the cognizant Naval Inspector. Contractors not having laboratory testing facilities satisfactory to the Government shall engage the services of a commercial testing laboratory acceptable to the procuring agency. The contractor shall furnish test reports in duplicate, showing quantitative re
33、sults for all tests required by this specification, and signed by an authorized representative of the contractor or laboratory as applicable. Acceptance or approval of material during course of manufacture shall in no case be construed as a guaranty of the acceptance of the finished product. 4.3.1 b
34、e of the following two types: Inspection Tests - The contractor shall furnish all models and shall be responsible for accomplishing When inspection is conducted at the contractors plant, all inspection and testing shall be Scope of Inspection Tests - Inspection tests shall meet all the requirements
35、of MIL-T-945, and shall (1) Individual Tests - individual tests shall be conducted on each model submitted for acceptance un- der the contract. - shall first have passed the individual tests. Sampling tests shall be more extensive tik? the in- dividual tests and may include any of the tests listed u
36、nder, preproduction tests which are deemed necessary by the inspector to determine that production models continue to be equivalent in per- fermance and construction of the approved preproduction models. 4.4 Procedures - The procedures for conducting presubmission testing of preproduction models and
37、 in- spection testing of production models shall be determined by the contractor. These test procedures shall be subject to review and approval by the procuring agency prior to the initiation of any testing. 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-,-,-
