1、I I r r I y c-45-7s-. . -1 k L“- : MIL-I-5419B 27 February 1969 SUPERSEDING 4 October 1950 MI L-I- 54 19A MILITARY SPECIFICATION INDICATOR, INDICATED AIRSPEED; PITOT-STATIC, MAXIMUM ALLOWABLE SPEED, 50-650 KNOTS This specification is mandatory for use by all Depart- ments and Agencies of the Departm
2、ent of Defense. * 1. SCOPE 1.1 Scope - This specification covers a Pitot-static, maximum allowable airspeed indicator, range 50-650 knots as listed on MS28048. 2. APPJXCABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposals, form a p
3、art of this specification to the extent speci- fied herein. * SPECIFICATIONS Military MILI- 5415 Indicators ;. Airspeed, Pitot-static Pressure, General Specification for MIL-P-21563 MIL-L-25142 Luminescent Material; Fluorescent Paint System, Fluorescent, For Aircraft Application STANDARDS Federal FE
4、D-STD- 59 5 Colors Military MILSTD- 781 Reliability Tests Exponential Distribution MIL-STD-785 Requirements for Reliability Program (for Systems $ Pitot-static , Maximum Allowable Speed, 50-650 Knots MS33585 Pointer; Dial; Standard Design of Aircraft Instrument (Copies of specifications , standards,
5、 drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) * 3. REQUIREMENTS * 3.1 Qualification - The indicator furnished under this specification shall be a product,
6、 samples of which have been tested, which meets the Quality Assurance Provisions specified herein, and has been listed on or approved for listing on the applicable qualified products list. 3.2 General - The requirements specified in MIL-1-5415 are applicable as general requirements of this speciffca
7、tion. Where the requirements of MIL-1-5415 and this specification conflict, the requirements of this specification shall govern. 3.3 Material - Material shall be in accordance with the require- ments specified in MIL-1-5415. 3.4 and as follows: Design and construction shall be as specified in MIL-1-
8、5415 3.4.1 Range - The airspeed indicator shall be designed to satisfactorily operate in the range of 50-650 knots. 3.4.2 Dimensions - The airspeed indicator shall conform to the dimensions shown on MS28048. 3.4.3 Pointers - The two pointers shall be concentric, with thle max- imum speed pointer clo
9、sest to the dial, and the indicated airspeed pointer nearest the cover glass. The nonindicating end of the pointer shall not obscure the Mach number scale. * 3.4.3.1 Indicated airspeed pointer - The indicated airspeed pointer shall conform to MS33585-3. The shaded portion of the pointer shall be fur
10、nished in fluorescent-luminescent material conforming to MIL- L25142 or lusterless white color No. 37875 of FED-STD-595. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-1-541 9B * 3.4.3.2 Maximum speed pointer - The maximum speed pointer shall
11、be in accordance with MS33585-3 except as shown on Figures 1 or 2. 3.4.4 Limitation of pointer movement - 3.4.4.1 Airspeed pointer - The airspeed pointer movement shall be limited by suitable stops in the mechanism in such a way that the pointer will not be permitted to rotate more than 350 degrees
12、of arc clockwise from the zero no pressure graduation when the indicator is submitted to overpressure tests. Suit- able stops may also be incorporated in the mechanism to limit the counterclock- wise rotation of the pointer to the zero graduation. The design of the stops shall be subject to the appr
13、oval of the procuring activity. * . 3.4.4.2 Maximum speed pointer - The maximum speed pointer shall be limited by a stop which is adjustable from the front of the indicator by a screw- driver slot in the lower left mounting lug as shown on MS28048. The range of the stop shall be from 300 knots or le
14、ss to 650 knots. The design of this, adjustable stop shall be such that it will in no way affect the indication of the pointer when the altitude and Mach number setting are such that the limiting speed will be lower than that set by the adjustable stop. I- 3.4.5 Mach number adjustment - The adjustme
15、nt of the Mach number shall be made by removing a pipe plug from the rear of the case and adjusting by use of standard tools. The design of this adjustment shall be subject to the approval of the procuring activity. 3.5 pounds. Weight - The weight of each indicator shall not exceed 1-1/2 * 3.6 Perfo
16、rmance - Airspeed indicators shall satisfy the performance requirements specified in Section 4 of MIL-1-5415, when subjected to the tests headed as follows, except as specified herein: (a) Examination of Product (b) Leakage (c) Scale Error at Room Temperature (d) Friction Error (e) Position Error (f
17、) Damping (g) Weight (h) Magnetic Effect (i)_ Pointer -Zero Position Error (i) Overpressure (k) Acceleration (1) Humidity (m) Salt Spray (n) Seasoning (o) Fungus Resistance (4) Mounting Lugs (Pl Aging In addition, the indicator shall satisfy the performance requirements specified in Section 4 of thi
18、s specification when subjected to the tests headed ao follows: I 3 I . _. - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L MIL-I-SqLB 66 4999906 0324953 2 m I- MIL-I- 541 9B 15 MAY7 -031 RAD MAX 7 1.093 EL 1.156 RAD SUB DIAL L. 500 RAD ALL GRADUAT
19、IONS ARE PARTIAL RADLU LNES. DIMENSIONS M INCHES. UNLESS OTHERWISE SPECZFIED, TOLERANCE: DECZMALS 2.015 MARKING Numerals 100, 300, 400, 500, 600 Numeral 200 Graduations corresponding to numerals 100, 200, 300, 400, 500, 600 Graduations corresponding to 50, 150, 250, 350, 450, 550, 650 Knot Readings
20、Shaded portion of maximum speed pointer Graduations on Main Did other than those specified above Numeral 50 Numeral O Graduation correspondiqg to O Lettering “Knotstt Lettering “Mach Number“ Triaagular Mach Number index Numerais on Sub DiaL.6, .7, .8, .9, 1. O Numerals on Sub DiaL.65, ,75. .85, .95
21、GrshaUons on siib Did Leetering h28048-lt or *%S28048-3i Lettering “Abspeeb Bacltground of dials Onshaded portion of maximum speed pointer / 350 MAX 1.218 RAD L1.375 / MIN RAD LUSTERLESS y-*/+- .200 RED - ORANGE BLACK MAIN DIAL FLUORESCENT MATEMAL CONFORMING TO MIL-P-21563 MAXIMUM SPEED PONTER - HEI
22、GHT OR LENGTH (. 010) .250 .187 (min) .281 (min) .218 (min) As shown on figure As shown on figure 187 (min) .-166 .125 .125 .o62 .o94 .125 .o93 As shown on figure .O47 .O47 As shown on figure * FIGVRE 1. LINEAR DIAL MARKINGS WIDTH OF LINE OR ORADUATION (k. 005) .O31 .O31 .O31 .O31 AB shown on figure
23、 .O16 ,016 .O16 ,016 .O16 .O16 . o94 .O16 ,016 ,016 ,016 , O16 AB shown on figure MATERIAL OR FINISH FluoreBcent Luminescent Material per MIL-L-25142 or Lusterless White Coloq, No. 37875 of FED-STD-595 Lusterlem Black Color No. 37038 of FED-STD- 5 95 Provided by IHSNot for ResaleNo reproduction or n
24、etworking permitted without license from IHS-,-,-15“ MAX7 ,-. 500 RAD MIL-I- 5419B 031 RAD MAX 1.375 MIN RAD LUSTERLESS RED - ORANGE BLACK FLUORESCENT MAIN DIAL MATERiAL CONFORMING TO MIL-P-21563 ALL GRADUATIONS ARE PARTIAL RADIAL mS. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCE: DECI
25、MALS f.015. MAXIMUM SPEED POIN“J3R I WKING Numerals 50, 80, 100, 120, 150, 200, 300, 400, 500, 600 Graduations corresponding to numerals 50, 80, 100, 120, 150, 200, Graduations corresponding to 250, 350, 450, 550, 650 Knot Graduations on main dial other than those specified above Numeral O Graduatio
26、n corresponding to O Lettering “Mach Number“ Triangular Mach Number Iladex Shaded portlon of maximum speed pointer Numerals on sub PITOT-STATIC, MAXIMU?ALLOWABI%-$PED, 50-650 KNOTS MS28048- (add proper dash number) Manufacturers Name or Trade-Mark and Supply Code Manufacturers Part No. Manufacturers
27、 Serial No. Contract or Order No. U.S. Property * 4. QUALITY ASSURANCE PROVISIONS * 4.1 Responsibility for inspection - Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwis
28、e specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the Government. The Government reserves the right to perform any of the inspections set forth in the specifications where such inspections are deemed necessary to assure supplies and services conform
29、to prescribed requirements. * 4.2 Classification of inspection - Inspection of the indicator shall be classified as follows: (a) Qualification inspection: Qualification inspection consists of examinations and tests performed on sample indicators submitted for approval as a qualified product. (b) Qua
30、lity conformance inspection: Quality conformance in- spection consists of examinations and tests performed on indicators manufactured and submitted for acceptance under contract. * 4.3 Qualification inspection - The qualification inspection of the indicators shall consist of ail of the examinations
31、and tests of this specification per- formed in the order specified under the paragraph headed Inspection methods and shall include the Reliability Qualification Phase tests. * 4.3.1 Qualification inspection sample - Qualification inspection samples shall consist of three indicators manufactured in a
32、ccordance with this specification. The indicators submitted for qualification inspection shall have been previously subjected only to the individual inspections. The samples shall be forwarded at the contractors expense, to the laboratory designated in the Letter of Authorization. 7 ! Provided by IH
33、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-I-5417B 66 - 9949706 0124757 T sli MIL-I-5419B * 4.3.1.1 Qualification inspection sample identification - The qualification inspection samples shall be plainly identified by durable tags, securely attached, and
34、 marked with the following information: Sample for Qualification Inspection INDICATOR, INDICATED AIRSPEED; PITOT-STATIC, MAXIMUM ALLOWABLE SPEED, 50-650 KNOTS Submitted by (Manufacturers name, datel for Qualification Inspection in accordance with Specification MIL-1-5419 under authorization (referen
35、ce letter authorizing tests). * 4.4 . Quality conformance inspection - The Quality conformance inspection shall consist of the Individual inspection, the Sampling plans, and the Reliability assurance tests of this specification. The contractor shall furnish all samples and shall be responsible for a
36、ccomplishing all the inspections. Sampling plan B inspections shall be conducted at a Government laboratory designated by the procuring activity. Quality conformance inspection, except for Sampling plan B, shall be under the supervision of the Government quality control repre- sentative. TheContract
37、or-shall furnish test reports showing quantitative results for all tests required by this specification, signed by an authorized representative of the contractor or laboratory as applicable. Acceptance or approval of material during the course of manufacture shall in no case be construed as a guaran
38、tee of the acceptance of the finished product. * 4.4.1 Individual inspection - Each indicator submitted for acceptance shall be subjected to the Individual inspection. This inspection shall determine com- pliance with the requirements of material, workmanship, operational adequacy, and reliability.
39、As a minimum, each indicator accepted shdl have passed the following inspections : Examination of Product Leakage Scale Error (Room Temperature) Friction Error Friction Maximum Speed Pointer Position Error Position Error Maximum Speed Pointer Hysteresis AEter Effect Maximum Allowable Speed Scale Err
40、or at Room Temperature * 4.4.2 Sampling plans - The Sampling plans shall consist of Sampling plan A and Sampling plan B inspections. The inspection samples selected for sampling tests shall have first passed the individual inspections. The inspection samples which have been subjected to Sampling pla
41、n A inspection shall not be de- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-541 9B livered on contract until they have been refurbished and resubmitted and passed all the individual inspections. Inspection samples which have been subjected
42、to the Sampling plan B inspection shall not be delivered on contract. * 4.4.2.1 Sampling plan A sample selection- Sampling plan A samples shall be selected at random in accordance with the following schedule: Quantity Offered Quantity to be Selected for Acceptance for Inspection First 15 Next 50 Nex
43、t 75 Next 100 Each additional 200 or fraction thereof (See Note) 1 1 1 1 NOTE: When Sampling plan B is invoked, the quantity shall be zero. When Sampling plan 3 is to be omitted, the quantity shall be one. When a defective indicator occurs, no items from those still on hand or later produced shall b
44、e accepted until the extent and cause of failure have been determined and appropriately corrected. in addition, when a failure occurs, shift to one sample out of fifteen (when Sampling plan 33 is omitted) and proceed as indicated. * 4.4.2.1.1 Sampling plan A inspection - Each sample selected for Sam
45、pling plan A inspection shall be subjected to the following tests in the order listed: Damping Weight Magnetic Effect Pointer Zero Position Error Low Temperature peration- High Temperature Operation - Vibration Error Overpressure Maximum Pointer Stop * 4.4.2.2 Sampling plan B instructions - Two indi
46、cators shall be selected at random from the first 15 produced on contract and submitted within 10 days after manufacture. These samples shall be forwarded; at the contractors expense, to a Government laboratory designated by the procuring activity. Each sample shall be plainly identified by a durabl
47、e tag, securely attached and marked with the following information: 9 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-t- I MIL-I-54L7B bb = 7799706 OL29757 3 W I l * MILI-5419B INDICATOR, INDICATED AIRSPEED; PITOT-STATIC, MAXLMUM ALLOWABLE SPEED, 5
48、0-650 KNOTS Submitted by (Manufacturers name, date) for Production Acceptance Sampling Plan B inspection, in accordance with MIL-1-5419 and Contract/order No. Manufacturers part number 4: 4.2; 2.1 Sampling-plan B approval - Approval of sampling p1G-B indicators shall be by the procuring activity upo
49、n satisfactory completion of the designated tests. Any design, material or performance defect made evident during this test shall be corrected by the contractor to the satisfaction of the procuring activity. Failure of the sampleunits to pass any of the tests shall be cause for deliveries of equipment under the contract to cease until proper corrective action is approved and accomplished, t 4.4.2.2.2 Sampling plan B inspection shall be subje
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1