1、NIL-A-SL110 57 m 77777Ob 0012883 b m B-0d-S. 1, scm desiga and placement of airborne antennas for use with IM communication equip- ment, including the furnishiqg of engineering reports. 2, APPL1CILBI;E SPECIFICATICNS AM Sm 2.1 The following specifications and stadards of the issue in effect on the d
2、ate of invitation for bids, shall form a part of this specification to the extent specified herein: 1.1 %is specification covers the performam requirements for the SPECIFICAIIICBE : Military: MILG-3608 MILS5272 MI L-P- 7094 MIW-GO Air Force : - 7200. Connectors, 19NCtlt For Environmental Testing, As
3、sociated Equipment , Radio Frequency Cables Aeronautical and rjeneral Specification For Electronic Equipment, Airborne, General Specification For Plastic Parts, Aircraft Exterior, General Requirements and Tests For RainJCrosion Protectioii Plastic Materials, Glass Fabric Base, Low Pressure Laminated
4、, dircraf t Structural Plastic Material, Molded Sandwich Construction Glass Fabric Base, Honeycomb Core, For Aircraft Structural. Applications Antennas, Liaison Comrmnimtion Equipment , General Specification For Design of Test Reports, beparation Of mio Set AN/ARG+( ) Electronic Equipment; Aircraft
5、, Preservation Packaging, Packing and Marking for Shipment Of -. - /- . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-7410 53 M 7793706 OOLZB84 B MILA=*10 (b) 2 Military: - MILSTiLl29 Marking of Shipments MIESTD-19 Identification Marking of U
6、.S. Military * Property -I. (Cogies of specif icatims and standards required by contractors in connection with specific procurement functions should be obtained frm the procuring agency or as directed by the -conti;ac ting officer,) 30 mm 3.1 General,- !Che requirements, including material and workm
7、anship, of Specification MIGE$OO are apglicable as requirements of this specifioation 3.2 design. The antenna specified herein is to be installed during or after man-e of the aircraft or as an integral part of the aircraft structure. shll be supplied together with the necessary transmission lines, c
8、onnectors, isolation units, matching network, and filters. %e antenria is to be used with Radio Cet AN/AllCI$b ( ). !Che ante- 3.2.1.1 General.- %e antenna nay be an integral part of the aircraft structure or w- externally mounted antenna such as a loop, stub or other system suitable for installatio
9、n on rotary wing and liaison type aircraft and consistent with the position in which it is to be mounted. Aircraft types such as the Ll3, 16, B.19, EaC, E-34, Ll5, Llg, and Cr3 shall be considered typid of the types designated above. 3.2.1.2 Antenna Location.- The antenna shall be so designed and in
10、stalled that its presence will not int erfere with the tactical mission of the aircraft. The antenna location shsll be such as to prevent the deleterious effects pro- duced by rotating surfaces found on aircraft types mentioned above, i.e.,rotor blade modulation, etc. #in addition to meeting all the
11、 other requirements of this specification. installed that no netter or other llquid can collect in any portion of the antenna when the aircraft is on the ground or in flight. eevere icing c(inCriGion8 encountered in flight, to minimize undesirable performance effects due to icing, _ 3.2.1.3 Collecti
12、on of Liquids.- The antenna shall be so designed and 3.2.1.4 Icing,- The antenna shall be constructed to withstand the most The antenna shd1 be designed - Y .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-9410 53 = 9999906 0012885 T W 3 MIU$
13、10 (USAF) 3.2.1.5 Dielectric Material,- The contractor sul submit a process specification in accordance with Specification MIkP-80l3 or Specification MILP-3341, covering the manufacturing and fabricBting process and methods of control of manufacturing variables of aqy plastic material used in the co
14、nstruction of the antenna. This process specification is in addition to any approved general process specification the contractors my now have and will be subject to the approval of the procuring agency, 3.2,1,5m1 Erosion Resistance.- Plastic mterials used in the fabriceb tion of any part of the ant
15、enna shall meet the requirements of S,pecification MILP-OO as to resistance to rain erosion, or a1 exterior piastic parts shall be protected with an erosion resistant material so that the combination shall meet the requirements of Specifications MILP-70% asid MIL-P-8Olj. 3.2.1.6 Size and Weight.- Th
16、e size and weight of all coaqponents of the antenna shall be the absolute minimum consistent with other requirements of this specification. 3.2.1.7 Sealing.- The design of the antenna shall be such that aay chambers, PO however, if such an arrangement is not feasible, the matching network q be compo
17、sed of a separate unit, patterns of the pro2osed antenna installed on a sde model of the aircraft at full scale frequencies of 24, 31, 3, 45, ani 9 megayces per second, The method of measurement shall be as specified herein, 3.2,2,4 Radiating Pattern,- The contractor shall obtain the radiation 3.2,2
18、,5 Impedance.- The impedance of the proposed antenna shall be measured over the full scale frequenqi range of 24 to 52 megacycles per second for the purpose of determining compliance with the VSIJR requirement specified herein, Initial measurements be the above frequency range. where it is necessary
19、 to establish the minimum or maximum values of resistanbe or reactance in the above frequency range. 17he methods of measurement and the test conditions shall be as specified herein, !i?he measurements shall be mde at more frequent intervals 3.2,2.5,2 Full Scale Aircraft Mea.surements,- The impedanc
20、e of the pro- posed antenna shall be measured over the frequency range of using the spherical coordinate system illustrated in Figure 1: 3.2.2.i At any azimuth angle 4 in the planes defined by the angle 6 = 9 degrees, plus or minus 10 degrees, the antenna gain shall be equal to or greater than that
21、of an isotropic radiator in free space with equal input power. plus or minus 5 degrees arid 4 = la degrees, plus or minus 5 degrees, the radiation loss shall not exceed 6 decibels with respect to an. isotropic radiator in free space with equal input power= The COB= 3.2.2.8.2 At any azimuth angle 9 i
22、n the planes defined by 8 = 75 degrees, 3.2.2.9 peratiorurl Flight Tests.- The antenna system shall be flight tested usipg at least five frequencies equally spaced through the frequency rage of be demonstrated at the following ranges and altitudes: to 52 megaqwles per secon, Stisfctory voici communi
23、cation simil 300 ft m ft 1ooo ft 190 ft w ft Flight test procedure shall be in accordance with 4,3.3.3 of this specification* 3.3 Engineering Reports: 3.3.1 Preliminary Report.- A preliminary letter report shall be submitted describing the intent, method of approach, general outline, and target date
24、 of the program required Iy this specification, A letter report shall be submitted, describing q or tmget date as soon as such information is h-rn Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-6 MIL- A-9410 (USAFI FIGURE I COORDINATE SYSTEM Provide
25、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-71110 57 m 7777706 0012887 7 m 7 MILdL10 (USAF) 3.3.3 Substantiating Data.- Data from each of the measurements used to design ana test the antenna shall be submitted to the contracting officer as swn as
26、practicable after each test is completed. sent shall be described and the results shall be clearly presented. particular, the following data skll be submitted at the times indicated: The method of-measure- In 3.3.3.1 Preliminary Design kta: 3.3.3.1.1. Radiation patterns covering the Princip1 planes
27、and both horizonai and vertical polarization chdl be submitted as soon as possible after the tentative design of the antenna has been established 3.3.3.1.2 The impedance cbmacteristics of the proposed antenna shall be suhitted when the model measurements or full scale measurements are ample t ed. 3.
28、3.3.2 Final Design Data.- As soon as possible after the final design of the antenna is cornpietea tne following data shall be submitted. a. Detail drawings of the proposed antenna including drawing showing the location of the antenna on the aircraft. bo Full sde impedance measurements of the anterma
29、 installed on the air cmf t. lete set of radiation pattern data measured inaccordance “ Lthpt.3.3.i. d. IBta from flight tests required by this specification. 3.3.3.2.1 Flight test reports shall describe each test flight conducted by the contractor and including comments on all operating defects enc
30、ountered and modifications found necessary. in accordance with Specification MIL II-9107 60 days after release of engineering design data. !Che final engineering report shall contain the following: construction details of the antenna, incl- ing photographs, and (2) a copy of all test data required b
31、y this specification, together with a description of the method employed in obtaining the ondftions,- Unless otherwise specified, the antenna shall be tested und er the following standard test conditions: a. Ambient Temperature: Room ambient, between the limits of b. Atmospheric Pressure: Nod ground
32、, C. Humidity: Frevailing ambient (between 10 and 94 percent) of test and measuring equipment including aircraft models used in performing the measurements specified herein. subject to the approval of the procuring agency, for model impedance measurements shall b e in accordance with Specification N
33、IL -and C. ;at frequency, altitude, and range . . . 4.4 Inspectibn Tests: 4.4.1 Mechnical,- A visd in-ection of the antenna system shall be made to veriTy thatT e materials, design, construction, marking, and w0r.b manship comply with the requirements of this specifim tion. 5. PRJPLWION FOR IIELIWY
34、purchases and the fact that the Government may have formulated, furnished, OP in any way supplied the said drawings, specifi- cations, or other data, is not to be regarded by implication or otherwise as in conveying EUIY rights or permission to mufactwe, use, or sell any patented invention that w in any way be related thereto, rmnner licensing the holder or my other person or corporation, or Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
