Accession Number:

ADB006070

Title:

Modified M505A3 Fuze with Delay Function

Descriptive Note:

Final rept. Apr-Sep 1974

Corporate Author:

AVCO SYSTEMS DIV WILMINGTON MA

Personal Author(s):

• Conlon, Jr, Charles M.

Report Date:

1974-10-01

Pagination or Media Count:

74.0

Abstract:

The M505A3 point detonating fuze was modified to incorporate a time delay function. A mechanical delay was achieved by using a heavier firing pin and increasing the firing pin travel to the detonator. A series of 77 gun- launched tests were conducted to evaluate the modifications. Targets were 2024- T3 aluminum panels, 0.040, 0.063, and 0.090 inch thick. Impact velocities ranged from 1000 to 3650 feet per second and impact angles ranged from 90 degrees vertical to 10 degrees graze. Tests and analyses indicated that the modifications for a time delay function are feasible and maintain a low cost fuze design.

Descriptors:

• *POINT DETONATING FUZES
• ALUMINUM ALLOYS
• DETONATORS
• FIRING TESTS(ORDNANCE)
• FUZE FUNCTIONING ELEMENTS
• LOW COSTS
• MODIFICATION
• MOTION
• PANELS
• PINS
• SURFACE TARGETS
• TERMINAL BALLISTICS
• TIME DELAY FUZES
• VELOCITY
• WEIGHT

Subject Categories:

• Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE