1、 MIL-L-22767A LO = 7777706 OLLI7L07 5 MI kL22769A (WEP) 15 JANUARY 1962 SUPERSEDING M IL-L-22769 (WEP) I FEBRUARY 1961 MILITARY SPECIFIC ATION LAUNCHER, WEAPONS, AIRBORNE AND ASSOCIATED EQ.iPMENT GENERAL SPECIFICATION FOR This specification has been approved by the Bureau of Naval Weapons, Departmen
2、t of the Navy. 1. SCOPE 1.1 Scope - This specification covers the general requirements for equipment used on aircraft to suspend and launch missiles, sonobuoys, bombs, marine location markers, rockets, aircraft parachute flares, torpedoes, underwater sound signals, aircraft depth bombs, bathythermog
3、raphs, depth charges, etc. This specification also covers items of equipment used to operate and control the operation of the launching equipment, but does not cover items of equipment used to compute the launching point. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on
4、the date of invitation for bids form a part of this specification to the extent specified herein: SPECIFICATIONS MIL- W- 5088 MIL-E - 5400 Electronic Equipment, Aircraft, MIL-H-5440 Wiring, Aircraft, Installation of General Specification for Hydraulic System; Aircraft Type I and II, Design Installat
5、ion and Data Requirements For MIL-P- 5518 Pneumatic System; Design, Installation, and Tests in Aircraft MIL-1-6181 Interference Control Requirements, Aircraft Equipment MIL- F-7179 Finishes and Coatings; General Specification for Protection of Aircraft MIL-P-793 6 Parts and Equipment, Aeronautical,
6、Preparation for Delivery General Specification for MIL-P-8564 Pneumatic Components, Aeronautical - 1 b 1 Q Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-227b7A LO W MUI-L-22769A (WEP) MIL-A-8591 MIL-H-8775 MIL-N-18307 MIL-D-21625 MIL-R-22973
7、MIL-R-23094 MIL-(2-26482 MIL-D-70327 STANDARDS MIL-STD-130 MIL-STD-143 MIL-STD- 704 MIL-STD-756 -25245 MS33586 PUBLICATIONS 2.2 9999906 014iL10 L = Airborne Stores and Associated Suspension Equipment, General Design Criteria for Hydraulic System Components, Aircraft, General Specification For Nomenc
8、lature and Nameplates for Aeronautical Electronic and Associated Equipment Design and Evaluation of Cartridges for Cartridge Actuated Devices Reliability index Determination for Avionic Equipment Models, General Specification for Reliability Assurance for Production Acceptance of Avionic Equipment,
9、General Specification for Connectors, Electric, Circular, Miniature, Quick Disconnect Drawings, Engineering and Associated Lists Identification Marking of U. S. Military Property Specifications and Standards, Order of Precedence for the Selection of Electric Power, Aircraft, Characteristics and Util
10、ization of Reliability of Weapons Systems, Procedures for Prediction and Reporting Prediction of Connections, input Power Airborne Electronic Equipment; 28-Volt DC, 115-Volt Single Phase AC, or 115/200-Volt-3-Phase AC, or Combinations Metals, Definition of Dissimilar Air Force - Navy Aeronautical Bu
11、lletin No. 440 Type Designation System for Aeronautical Support Equipment Availability of Documents (1) When requesting specifications, standards, drawings, and publications refer to both title and number. Copies of this specification and applicable specifications required by contractors in connecti
12、on with specific procukement functions may be obtained upon application to the Commanding Officer, Naval Supply Depot, Code CDS, 5801 Tabor Avenue, Philadelphia 20, Pennsylvania. 3. REQUIREMENTS 3.1 Parts, Materials, and Processes - Parts, materials, and processes .used by the manufacturer of the la
13、unching equpment shall be of high quality, suitable for the purpose, and shall conform to applicable Government specifications except that contractors specifications may 2 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-be used provided the specifi
14、cations are released by the procuring activity and contain pro- visions for adequate tests. The use of contractors specifications shall not constitute waiver of Government inspection. 3.1.1 Metals - All metals used in the construction of the launching equipment that are not a corrosion-resisting typ
15、e shall be protected to resist corrosion during the service life of the launching equipment. The use of dissimilar metals shall be avoided. Dissimilar metals are defined by Drawing MS33586. 3.1.2 Selection - Specifications and standards for all materials, parts and Government certification of proces
16、ses and equipment, which are not specifically designated herein and which are necessary for the execution of this specification, shall be selected in accordance with MIL-STD-143. 3.1.3 Standard Parts - Standard parts (MS, AN, or JAN) shall be used wherever they are suitable for the purpose and shall
17、 be identified on the drawings by their standard part numbers. Commercial utility parts such as screws, bolts, nuts, cotter pins, etc., may be used provided they possess suitable properties and are replaceable by the standard parts without alteration and provided the corresponding standard part numb
18、ers are referenced in the parts list and on the drawings. 3.1.4 Part and Process Approval - All parts and processes shall be adequately tested prior to their use in the equipment. 3.2 Design and Construction - The launching equipment shall be designed and constructed to withstand the stresses, vibra
19、tions, and shocks incident to shipping, storage, installation and service use. The launching equipment shall be designed and constructed so that no fixed part or assembly shall become loose, no moving or movable part or assembly shall become free or sluggish in operation, no movable part or control
20、shall be shifted in setting, position, or adjustment, and no degradation shall be caused in the per- formance below that specified in the model specification for the launching equipment during operation or after storage of the launching equipment in environmental conditions specified herein. 3.2.1 E
21、lectrical Requirements - Launching equipment incorporating electrical devices shall conform to MIL-STD-704 and Specification MIL-W-5088. 3.2.1.1 Grounding - Each electrical connector used in the launching equipment shall have a ground return terminal. 3.2.1.2 Input power connections - Electrical inp
22、ut power connections shall be in accordance with Drawing MS25245. 3.2.1.3 Interconnection Cabling - The launching equipment shall be capable of satisfactory operation using external wiring in accordance with Specification MIL-W- 5088. 3.2.1.4 Dielectric Strength - The dielectric shall be capable of
23、withstanding without failure an electro-motive force of at least 1000 volts, root-mean-square, alternating current, applied between each electrical circuit and all other electrical circuits and between each circuit and the structural ground. The frequency of the applied voltage shall be in the range
24、 of 50 to 100 cps. 3.2.1.5 Insulation Resistance - The insulation resistance of the electrical circuits and devices shall be one megohm or more. The insulation resistance shall be measured at a constant potential of 500 volts direct current by means of a megger or other suitable method. The resistan
25、ce shall be measured between each circuit and the structural ground and between each circuit and all other circuits. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-227b7A LO W 9979906 OL47L12 5 3.2.1.6 Electrical connectors - Electrical conn
26、ectors shall be in accordance with Spec if ication MIL-C -2 6482. 3.2.2 Hydraulic devices - Launching equipment incorporating Pneumatic Devices - Launching equipment incorporating Cartridge actuated devices - Launching equipment incorporating hydraulic devices shall conform to Specifications MIL-H-5
27、440 and MIL-H-8775. hydraulic devices shall C onform to Specifications MIL-P-5518 and MIL-P-8564. cartridge actuated devices shall conform to the applicable requirements of Specification MIL-D-21625. 3.2.3 3.2.4 3. 2. 5 Electronic Devices - Launching equipment incorporating electronic devices shall
28、conform to Ee applicable require ments of Specification MILE - E - 5 40 O. 3. 2. 6 Temperature - The launchingequipment shall be capable of withstanding without failure, in the operating and nonoperating condition, exposure to temperatures within the range of -87C to +85“C. The temperatures within t
29、his range may remain constant for long periods and may vary at a rate as .high as 1C per second. 3. 2. 7 Altitude - The launching equipment shall be capable of with- standing without faihT-K the operating and nonoperating conditions, exposure to altitudes within the range of sea level (30. O in. Hg)
30、 to 70,000 feet (1. 3 in. Hg). The altitude may remain constant for long periods and may vary at a rate as high as O. 5 inch of mercuryper second. 3,2.8 Humidity - The launching equipment shall be capable of withstanding withouffanT in the operating and nonoperating condition, the effects of relativ
31、e humidities up to 100 percent, including conditions wherein condensation takes place in and on the launching equipment in the form of both water and frost. Vibration - The launching equipment shall be capable of withstanding - 3. 2.9 without failure, in tEe operating and nonoperating condit ons, vi
32、brations within the frequency mgeof 5 to 500 cycles per second. The double amplitude shali be 0.1 inch or f 10G whichever is the limiting value. 3.2.10 Shock - The launching equipment, with rounds installed in the condition predicted foproduce the most critical stresses, shall be exposed to shock co
33、nditions specified herein. 3.2.10.1 Structural integrity- The launchinp equipment shall not suffer damage or subsequentIyfZimvide-t3e performance specified in the model specification. when subjected to impact shocks of 15G magnitude having a time duration of 11 f 1 milliseconds. 3.2.10.2 Crash safet
34、y - The launching equipment shall remain in place and shall retain the rounds when subjected to impact shocks of 30 G. Bending and distortion will be permitted. There shall be no ailure of the attachment joints. Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
35、m IHS-,-,-MIL-L-22769A 10 9999906 Ol147LL3 7 W MIL-L-22769A(WEP) 3.2.11 Sand and Dust - The launching equipment shall be capable of withstanding without failure, in both an operating and nonoperating condition, exposure to sandmd dust concentrations of O. 1 to 0.5 gram per cubic foot for three hours
36、 at a relative humidity of 30 percent or less, an air velocity of 2,500 I 500 feet per minute, and a temperature of 71 OC. The sand and dust shall be of angular structure and shall have characteristics as follows: (a) 100 percent of the sand and dust shall pass through a 100-mesh screen, U. S. Stand
37、ard Sieve Series. (b) 98 12 percent of the sand and dust shall pass through a 140-mesh screen, U. S. Standard Sieve Series. (c) 90 12 percent of the sand and dust shall pass through a 200-mesh screen, U. S. Standard Sieve Series. (d) 75 I 2 percent of the sand and dust shall pass through a 325-mesh
38、screen, U. S. Standard Sieve Series. (e) Chemical analysis of the sand and dust shall be as follows: Substance Percent by weight Si02 97 to 99 Fe203 o to 2 Ti03 o to 2 MgO o to 1 Ign losses o to 2 o to 1 3.2.12 Fungus - The launching equipment shall withstand, in an operating and non- operating cond
39、ition, exposure to fungus growth as encountered in tropical climates. The launching equipment shall be fungus-proofed by selection of parts and materials that are non- nutrient for fungi, or the parts and materials shall be treated prior to their use in the launching equipment so that overall sprayi
40、ng is unnecessary. Rain - Launching equipment intended for external installation shall be capable of withstanding wist failure, in the operating and nonoperating condition, exposure to rain at the rate of 4 inches per hour. 3.2.13 3.2.14 Sunshine - Launching equipment intended for external installat
41、ion shall be capable of withstanding without a failure, in the operating and nonoperating condition, exposure to radiant energy at the rate of 140 watts per square foot of projected area. Fifty to 84 watts per square foot shall be in wave lengths above 7,800 angstrom units and four to eight watts pe
42、r square foot shall be in wave lengths below 3,800 angstrom units. 3.2.15 Explosive Conditions - The launching equipment shall not cause ignition of an ambient explosive atmosphere when operated therein. Cartridge actuated devices shall have provisions for venting overboard the products of propellan
43、t combustion or of completely sealing the combustion chamber. 3.2.16 Acceleration - The launching equipment shall be capable of satisfactory opera- tion while being subjected to forces in accordance with Specification MIL-A-8591 up to design limit load, shall not exhibit permanent deformation after
44、being subjected to desig yield load and shall not fail when subjected to design ultimate load, 3.2.17 Salt Atmosphere - The launching equipment shall withstand without failure, in - -_ the operating and nonoperating condition, exposure to salt- sea atmosphere. - - 5 Provided by IHSNot for ResaleNo r
45、eproduction or networking permitted without license from IHS-,-,-6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-22767A LO H 7979706 0147LL5 O H MIL-L-22769A (WEP) workmanlike manner. Particular attention shall be paid to neatness and thoroug
46、hness of soldering, wiring, plumbing, impregnation of coils, marking of parts and assemblies, plating, painting, riveting, machine screw assemblage, welding and brazing, and freedom of parts from burrs and sharp edges. Dimensions - Dimensions and tolerances not specified shall be as close as is cons
47、istent with best shop practice. When dimensions and tolerances affect the interchangeabilitv, operation, or- performance of the launching equipment, the dimensions and tolerances shall be held or limited accordingly. 3. 9.2 3. 9.1 Fabrication - Machining, drilling, and fonming shall be done with the
48、 usewe jigs, templates, or gagel. 3.9.3 Screw- assemblies - Assembly screws shall be tight. The word “tight“ means that the screws cannot be tightened appreciably further without damage or injury to the screw threads. 3.9.4 Riveting - Riveting operations shall be performed carefully so that themare
49、tight. Rivet heads shall be full size and concentric with the body. Dimensions of the rivets shall be such that the holes will be filled, protruding countersunk rivet heads, shall -be replaced before acceptance of the launcher. Excess metal shall be removed from countersunk rivet heads as a customary operation. This does not cover eyelets or hollow tubular rivets which shall not be used. Loose, cracked,. or badly forme4riveting, including 3. 9. 5 Gears
