Development of a 7-in. Air Gun for Use in Interior Ballistics Simulation
Abstract
A 7-in. diameter, 98-ft-long air gun has been installed at the Harry Diamond Laboratories (HDL) for use in fuze testing. The air gun is bidirectionally interfaced to a timeshare computer that acts as the test controller and promptly records test data. Streak photographs taken of the simulated ballistic environment are reduced by a computer-controlled microdensitometer. The resulting digital data are further computer analyzed to provide velocity versus time and acceleration versus time profiles of the test environment. This report details the purchase, inspection, acceptance, and construction of the 7-in. air gun. Instrumentation and data reduction procedures are described. To date, 34 air-gun shots have been made. Projectile velocities up to 530 ft/sec have been attained. Average impact test accelerations of 15 kg from 1.2 to 1.5 msec in duration have been achieved.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1975
- Accession Number
- ADA020866
Entities
People
- Michael G. Otten
Organizations
- Harry Diamond Laboratories