Accession Number:

AD0785516

Title:

The Attainment of Recoilless Rifle Blast Reduction - A SEAS Status Report.

Descriptive Note:

Technical rept.,

Corporate Author:

WATERVLIET ARSENAL N Y

Personal Author(s):

Report Date:

1974-06-01

Pagination or Media Count:

55.0

Abstract:

Back blast overpressure measurements from firings of seventy 105mm RR inert rounds have been examined and compared to predictions by point source blast correlations and by time-dependent gas dynamic codes. The effect of porous shroud and parallel plate deflectors is shown for some full-scale tests. That of a sixty-staged, capacitative multinozzle, 17 subscale cluster, is shown to significantly reduce back blast. Some detonative properties of the incident blast wave are considered, and a thermochemical analysis is given for a dense M-8 gas, performed under contract to obtain charged species and OH concentrations. It is concluded that capacitative-dissipative devices may be superior to the purely dissipative type of fluid mechanical blast attenuator, but that propellant and loading considerations play an important role in blast reduction. Author

Subject Categories:

  • Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE