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    ARMY MIL-P-48450 A (1)-1979 PERISCOPE TANK M35E1《M35E1式坦克潜望镜》.pdf

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    ARMY MIL-P-48450 A (1)-1979 PERISCOPE TANK M35E1《M35E1式坦克潜望镜》.pdf

    1、MIL-P-48950A (1) 12 7777706 0320534 3 W MILITARY SPECIFICATION PERISCOPE, TANK: M35E1 MIL-P-48450A( AR) AMENDMENT 1 15 October 1979 This amendment forms a part of Military Specification MIL-P-48450A(MU) dated 15 March 1976. PAGE 3 Paragraph 3.4.3.1 - Delete and substitute: “3.4.3.1 Vibration “A“. Th

    2、is requirement shall be met with the image intensifier tube and reticle projector lamp energized by the application of +24 + 6.0 VDC to Contact 11733497 (Reference Drawing 11733401). interface of the periscope and mount. Vibration shall be applied along each of three mutually perpendicular axes of t

    3、he periscope. vibration shall be shall be sinusoidal as follows: The vibration input to the periscope shall be at the The 10%. linearly from .5 G to 1.5 GIs - + 10%. acceleration of 1.5 GIs - + 10%. acceleration of 1.5 GIs - + 10%. linearly from 1.5 GIs to .5 G - + 10%. b. During a frequency sweep o

    4、f 5 to 9 Hz, increase c. During a frequency sweep of 9 to 500 Hz, mainta d. During a frequency sweep of 500 to 9 Hz, mainta During a frequency sweep of 9 to 5 Hz, decrease At 5 Hz, the acceleration shall be .5 G - + 10%. e. f. a. A frequency of 5 Hertz(Hz), the acceleration shall be .5 G - + acceler

    5、ation n constant n constant acceleration The frequency of applied vibration shall be swept logarithmically in 15 minute + 1 minute sweep cycles for a total of two hours per axis . There shalT be no failure or flicker of light emission from the image intensifier tube nor he reticle projector lamp dur

    6、ing vibration and the periscope shall show no evidence of physical failure subsequent to vibration. Following the vibration test the persicope shall m*eet the requirements of 3.6.3.2, 3.6.4.1, 3.6.9, 3.6.2, 3.6.3.1, 3.6.3.1.1, 3:6.3,1.2; 3.6.5, 3.6.6, 3.6.6.1, 3.6.7, 3.6.8, 3.2, 3.1, 3.5 and then ea

    7、ch module (see 3.1) shall meet their own respective post-vibration test requirements .I FSC 1240 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-4V50A (1) 12 W 7977706 0320535 O 9 MIL - P - 4E45D3 ( AR ) AMENDMENT 1 Paragraph 3.4.3.2 - Delete a

    8、nd substitute: Vibration llBl - This requirement shall be met with the image intensifier tube and reticle projector lamp energized by the application of +24 + 6.0 VDC to Contact 11733497 (Reference Drawing 11733401). The vibration input to the periscope shall be at the interface of the periscope and

    9、 mount. Vibration shall be applied along each of three mutually perpendicular axes of the periscope. vibration shall be sinusoidal as follows: “3.4.3.2 The a. b. At a frequency of 5 Hertz(Hz), the acceleration shall be 1.0 G During a frequency sweep of 5 to 500 Hz, maintain constant - + 10%. acceler

    10、ation of 1.0 G - + 10%. c. d. During a frequency sweep of 500 to 5 Hz, maintain constant At 5 Hz, acceleration shall be 1.0 G - + 10%. acceleration of 1.0 G - + 10%. The frequency of applied vibration shall be swept logarithmically in 15 minute + 1 minute sweep cycles for a total of 15 minutes + 1 m

    11、inute along each-of the three mutually perpendicular axes (total vTbration time 45 minutes + 3 minutes). There shall be no failure or flicker of light emission from the image intensifier tube nor the reticle projector lamp during vibration and the periscope shall show no evidence of physical failure

    12、 subsequent to vibration. Following the vibration test the periscope shall meet the requirements of 3.6.3.2, 3.6.4.1, 3.6.9, 3.6.2, 3.6.3.1, 3.6.1.1, 3.6.3.1.2, 3.6.5, 3.6.6, 3.6.6.1, 3.6.7, 3.6.8, 3.2, 3.1, 3.5 and then each module (see 3.1) shall meet their own respecti ve post-vi brati on test re

    13、qui rements“ . PAGE 4 Paragraph 3.4.3.3 - Delete and substitute: intensifier tubend reticle projector lamp energized by the application of +24 + 6.0 VDC to Contact 11733497 (Reference Drawing 11733401). of the periscope and mount. The periscope shall be subjected to 24 cumulative shocks consisting o

    14、f three each at 35 GIs 5 lo%, then 20 GIs - + 10% applied in each direction along each of the two mutually perpendidular horizontal axes (all four sides). The shock pulse shall have a half sine wave with a time duration of 3 + .2 milliseconds. The periscope shall also be subjected to six cumlative s

    15、hocks consisting of three each at 35 GIs + lo%, then 20 GIs + 10% applied in one direction along the vertical axTs (normal operating position of “3.4.3.3 Shock. This requirement shall be met with the image The shock input to the periscope shall be at the interface Page 2 of 3 Provided by IHSNot for

    16、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-48450A(AR) AMENDMENT I the periscope only). a time duration of 18 + 3 milliseconds. shall be no failure or-flicker of light emission from the image tube nor the reticle projector lamp. evidence of physical failure. Foll

    17、owing the shock test, the periscope shall meet the requirements o 3.6.3.2, 3.6.4.1, 3.6.9, 3.6.2, 3.6.3.1, 3.6.3.1.1, 3.6.3.1.2, 3.6.5, 3.6.6, 3.6.5.1, 3.6.7, 3.6.8, 3.2, 3.1, 3.5 and then each module (see 3.1) shall meet their own respective post-shock test requi rements.lI The shock pulse shall ha

    18、ve a half sine wave with Subsequent to shock, there The periscope shall also show no PAGE 5 Paragraph 3.6.l.a, Line 1 - Delete ltfour“ and substitute “three“. PAGE 6 Paragraph 3.6.3.1.1, Line 3 - Delete “0.2 mil“ and substitute l1JO mil“ Custodian: Arm.y-AR Page 3 of 3 Preparing Activit.y: Army - AR Project No. 1240-A735 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-


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