1、I -; MIL-P-qb958F - 13 I - 9799906 031212b 9 M c).f-sc4-0(s , MIL-48 29 JANUARY 1980 SUPERSEDING i. MIL-P-46458E (AR) 4 April 1977 . PROPELLANT M30 FOR USE IN CARTRIDGE, 105MM, HEAT-T, M456A1 HEAT-T-MP, M456AlE2 and TP-T, M490 This specification is approved for use by the US Army Armament Research a
2、nd Development Command, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE“ 1.1 This specification covers M30 Propellant for use in the Cartridge HEAT-T, M456A1, HEAT-T-MP, M456AlE2 and TP-T, M490 for the 105MM, M68 Gun (See 4.5.4). 1.2 Classification. Th
3、e propellant shall be Type 1 Cylindrical Multi-Perforated grains, 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS M
4、ILITARY MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for FSC: 1376 . I - - -. - -. .t 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.- MIL-P-46458F .() *- STANDARDS MILITARY I MIL-STD-414 MIL-STD-6 5 2 -S
5、ampling Procedures and Tables ?or In- spection by Variables for percerit defec- tive -Propellants, Solid, for Cannons, Require- ments and Packing -DRAWINGS . (see 6.3) US ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND 8861065 8861071 - 8865257 0865533 93 128 16 9312815 9331305 9331331 10523473 -Cart
6、ridge, 105MM, HEAT-T, M456A1 -Projectile, 105MM, HEAT-T, M456A1 -Case Cartridge and Liner Assembly 105MM -Cartridge, 105MM, TP-T, M490 -Cartridge, 105MM, HEATIT-MP, M456AlE2 -Cartridge, 105mm, HEAT-T, M456A1 -Cartridge, 105MM, TP-T, M490 -Projectile, 105MM, TP-T, M489 Metal Parts M148AlB1 -Projectil
7、e, 105MM, HEAT-T-MP, M456AlE2 Assembly Assembly (Copies of specifications, standards, drawings and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer,) 3, REQUIREMENTS 3.1 Mat
8、erial The propellant shall be M30 Type I, conforming to the requirements of MIL-STD-652 except for the following: 3.1.1 Grain Length to Diameter Ratio The average grain length (L) .shall be from 2.00 t Sa20 times the average grain diameter (D). 3.1.2 Grain Diameter to Perforation Diameter Ratio The
9、average grain diameter (D) shall be from 11.5 to 15 times the av 7OoF - t-2.5O: 125OF -5OF and 145OF -5OF. Copper crusher gages (2) shall be used to measure the maximum chamber pressure. coils will be used to measure the muzzle velocity. shall be assembled in accordance with the applicable drawing.
10、. The following tolerances shall Velocity Test rounds 4.5.1.1 Charge establishment (see Table i). 4.5.1.1.1 Charqe slope method. Three or more groups of three Three calibration rounds rounds each loaded with selected charge weights of propellant (weights selected should bracket expected service char
11、ge weight), shall be conditioned and fired at 70 OF. shall also be conditioned and fired at 70 OF prior to the test rounds. From the data obtained, a composite charge weight versus velocity versus pressure curve shall be established. A charge weight shall be calculated which will yield the prescribe
12、d service velocity (see 3.2). loaded into rounds for the uniformity series (see 4.5.1.2.1). The difference between the corrected velocity obtained during the uniformity series and the service velocity shall be compensated for by a final adjustment in charge weight using the slope of the velocity cha
13、rge weight curve previously established. The resultant will be the recommended charge weight for the applicable items listed in Paragraph 4.5.4. This calculated charge weight shall then be 6 b Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-,=- b a 9
14、 z a a U c” an um U a- mi Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-46458F (AR) 4.5.1.1.2 Constant slope method. After ten (10) lots of a given production series have been fired to provide a good knowledge of the propellant characteristic
15、s, the charge slope method of assessment may be discontinued and the charge weight determined by the constant slope method. velocity versus pressure curve can be established from the alreadv generated test results (see 4.5.1.1.1). This curve can then be used as in 4.5.1.1.1 to calculate the charge w
16、eight needed to achieve service velocity. This calculated charge weight is then to be loaded into rounds for the uniformity series and final adjustment is to be made as indicated above for the charge slope method (see 4.5.1.2.2). The resultant will be the recommended charge weight for the applicable
17、 items listed in Paragraph 4.5.4. A composite charge weight versus 4.5.1.2 Uniformity (see Table I). 4.5.1.2.1 Initial production. Forty (40) rounds shall be assembled with the calculated charge weight (see 4.5.1.1.1) of propellant. 1 Procurement requirements. Procurement requirements of MIL-A-48078
18、 shall apply. 6.1.2 Contract data requirements. One copy of all description sheets and firing records required by this specification shall be forwarded to: Commander US Army Armament Research and Development Command Dover, NJ 07801 Commander US Army Armament Materiel Readiness Command Rock Island, I
19、L 61299 ATTN: DRDAR-QAR-R DRDAR-LCA-G -. ATTN: DRSAR-QAM-A 6.1.3 Charge Weight If the recommended charge weight established for a cartridge is to be used in a different cartridge, the charge weight should be corrected for the difference in Projectile weight and obturator, when applicable (see 4.5.4)
20、. 6.2 Proving qround test summary (see Table I). 6.3 Drawings. Drawings listed in Section 2 of this specification under the heading US Army Armament Research and Development Command (ARRADCOM) may also include drawings prepared by, and identified as, Edgewood Arsenal, Frankford Arsenal, Rock Island
21、Arsenal or Picatinny Arsenal drawings. -Technical data originally prepared by these activities is now under the cognizance of ARRADCOM. 6.4 Surveillance sample. Samples shall be forwarded to US Army Armament Research and Development Command, Dover, NJ 07801, ATTN: DRDAR-LCE-MP for the propellant sur
22、veillance test program in accordance with MIL-STD-652. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-46458F . (AR) I 6.5 Reference sample - Whenever a propellant-lot is selected for reference use, a 5-lb sample shall be forwarded to US Army A
23、rmament Research and Development Command, Dover, NJ 07801, ATTN: DRDAR-LCA-G for use in evaluating the propellant stockpile. 6.6 Standard weapon conditions. Standard weapon conditions refer to the weapon-model and conditions of the test at the time the calibration series was fired. . Preparing Activity: Custodian: Army-AR Army-AR Project Number: 1376- Al55 *US. GOVERNMENT PRINTING OFFICE: 1980-603-121/1640 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
