1、HIL-L-51450A 13 E 777770b 03341110 5 m - . MIL-L-51450A( EA) 30 April 1985 SUPERSEDING MIL-L-51450 (EA) 11 October i978 MILITARY SPECIFICATION LAUNCHER, PROJECTILE, 64 MM - M234 This specification is approved for use by US Army Armament, Munitions and Chemical Command, Department of the Army, and is
2、 available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of launcher for the W42 and i. N743 riot control projectiles. 2. APPLICABLE DOCUMENTS 2.1 Government documents. andbooks. Unless otherwise specified, the following
3、specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL QQ-S-781 - Strapping, Steel, F
4、lat and Seals. PPP-T-97 - Tape, Pressure Sentitive Adhesive, Filament Reinforced. MILITARY MIL-B-2427 - Boxes, Ammunition Packing; Wood, Nailed. MIL-B-7883 - Brazing of Steel, Copper, Copper Alloys, Nickel Alloys, Aluminum and Aluminum Alloys. ; : tient data which may be of use in improving this doc
5、ument should be addressed: : to: : AMSMC-TDC-S (A) , Aberdeen Proving Groundg MD 21010-5423 by using the self- : : addressed Standardization Docunent Improvement Proposal (DD Form 1426) Commander, US Army Armament, Munitions and Chemical. Command, ATTN: FSC 1330 THIS DOCUMENT CONTAINS /+ PAGES T Pro
6、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. I I MIL-L-5L450A L3 M 7777706 0334LLL 7 MIL-L-51450A( EA) STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-407 - Visual Inspection Guide for Rubber Molded Items.
7、Attributes. 2.3.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this spec- ification to the extent specified herein. DRAW1 NGS US ARMY ARMAMENT, MUNITIONS AND CHEMICAL COMMAND CHEMICAL RESEARCH AND DEVELOPM
8、ENT CENTER TDPL 122-3-30 - Launcher, Projectile, 64 mm - M234. PRODUCT ASSURANCE TEST PROCEDURES 136-400-i00 - Inspection Standard for Evaluation of Brazed Joints and Structural Components for Projectile Launching Cup, PUBLICATIONS DEPARTMENT TM 9-1011 OF M234 Launcher THE ARMY -2 4-10 - Launcher, P
9、rojectile, 64 LM: Riot Control, M234. (Copies of specifications, standards, handbooks, drawings and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contrac- ting officer.) 2.1.3 Order of p
10、recedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specifica- tion shall take precedence. 3. REQUIREMENTS 3.1 Materials and components. 3.1.1 Materials. All materials cited on Drawing 122-3-38 and on the sub- sidiary drawing
11、s shall conform to the specifications listed thereon, or to the specific characteristics set forth on the drawings. Y 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-O - Cup (Drawing 122-3439 ) . Defects Critical: None defined Major: AC%. Tests sha
12、ll be conducted as iobl.ows: 4,4.4.1 Functioning, velocity and dispersiono An indoor firing range shall be used, The launcher shall be assembled MAI/ARI. rifle, loaded, fired and serviced in accordance vith TM 9-1010-224-10, Five rounds shall be fired. Provided by IHSNot for ResaleNo reproduction or
13、 networking permitted without license from IHS-,-,-MIL-1-CL450A 13 W 777770b 0334121 T = MIL-L-5 145 OA( EA) (a) The velocity of each round shall be measured using photo- electric ballistic screens and elapsed time counters. center of the screens to the launcher barrel shall be 5,O + 0.1 ft. each ve
14、locity. The dist8.nce from the Record - (b) Measure the dispersion distance from the center of impact for each round, requirement. A launcher fails if 1 or more out OP 5 rounds does not meet the (c) Remove the launcher cup assembly (Drawing 122-3-45) , inspect for failure, clean, lubricate and reass
15、emble. cause for rejection of the launcher. Yallure of any component is 4.4.4.2 Brazing and structural adequacy. Test and examine in accordance with Inspection Standard No. 136-400-i00 4.4.4.3 Reliability. The launcher shall be assembled to a Ml6Al/AR15 rifle, loaded, fired and serviced in accordanc
16、e with TM 9-1010-224-10. shall be shoulder fired over a rest. every 30 seconds for 6 rounds, then a 3 minute cooling down period. a total of 30 rounds. Disassemble, clean, inspect, lubricate, and reassemble the launcher and repeat in 30 round cycles. 4.4.4.1) and recorded. Projectile impact data sha
17、ll be recorded to the nearest centimeter for the Ist, &th, 7th, etc. 30-round groups for information. tiles for these groups shall be unfired. shall be fired into a net at 35 meters and re-used provided the breakbands re- main intact. Fire each launcher until all three launchers experience one or mo
18、re of the listed failures or an average of i70 rounds per launcher is ob- tained, whichever occurs first. The total number of rounds until failure is noted and the nature of the failure shall be recorded for each launcher. These launchers shall be considered destroyed in testing and no components ma
19、y be reused for production (see 6.1.) All rounds The firing sequence shall be one round Repeat for Velocities shall be measured (see Projec- 30-round groups 2, 3, 5, 6, 8, etc. Failures (a) (b) Key wear to edge of center rivet head Any crack, dent, or distortion (visual or tactile) (c) LOSS of any c
20、omponent (d) Loosening of any riveted, pinned, press fit or bonded components (e) Detent fails to retain cup during loading and handling (f) Binding of sleeve, latches or cup 12 L Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-51450A( EA) NOTE
21、: velocfty or an erratic projectile flight, failure the next round should be fired (using an unfired projectile). condition persists disassemble the launcher and identify the cause. attributable to the launcher, reassemble and continue the test. Cup failures during firing may be evidenced by a sudde
22、n change in If there.is no visible evidence of If the O If not 4,4.4.4 Froof-firing. Each projectile launching cup shall be assembled into an M234 laun-shall be assembled to an 161/15 rifle, loaded and fired in accordance with Tzul 9-1010-224-10. Each launcher cup shall be fired once, cleaned and ex
23、amined. Projectiles shall be fired into a net at 35 meters for soft recovery and re-used provided %he breakbands remain intact, Proof-mark accepted cups o . I o 5. PACKAGING 5.1 Packaging, level A. Each launcher shall be individually packaged in a pre-fomd polystyrene container conforming to Drawing
24、 122-3-72. shall be closed using tape, meinch wide, type II, class B of PPP-T-97. The tape shall be applied to the container as shown on Drawing 122-3-69, i The container 5.2 Packing, level A. Each launcher, packaged as specified in 5.1, shall be packed in a wood shipping container conforming %o Dra
25、wing 122-3-69. ping container shall be closed and strapped in accordance Tarith the closure requirements of MIL-B-2427, using flat galvanized steel strapping conforming to type I or II (heavy duty), class A, style optional, 3/8 by 0.020 inch of The ship- QQ-S-781 a 5.3 Marking. Unless otherwise spec
26、ified in the contract or order, shipping containers shall be marked in accordance with Drawing 122-3-69. 6. NOTES 6.1 Ordering data. Acquisition documents should specify the following: (a) (b) Level A packaging required, ( c 1 Title, number, and date of this specification, Preproduct ion : (i) (2) (
27、3) (4) Time allowed for contractors submission of samples for Name and address of test facility and shipping instructions Time required for the Government to notify the contractor Disposition instructions for the reliability test launchers. Government test and evaluation after award of contract, whe
28、n testing is performed by the Government, whether or not ta proceed with production. 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-52450A 23 774770b 0334323 3 W / MIL-L-5 145 OA( EA) 6.2 Caution. (a) The M755 blank cartridges are classifie
29、d class “C“ explosives with a minimum of susceptibility to static discharge detonation. handled in a careful manner with caution against impact and shock loading. They should be (b) ?he Outdoor Firing Range Surface Danger Area is a triangle with the vertex at the gun site. Fifty meters or each side
30、of the target shall deter- mine the angle at the vertex (103“ for test b.4.4.1) and the maximum range shall be 300 meters. (c) Indoor Firing Ranges shall be constructed to contain the projectile and all access shall be controlled during firing, Custodians : Av - EA Preparing activity: Av - EA Project No. 1330-A233 , . L i 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
