Minimizing Secondary Wear in the 105mm M68 Gun.
Abstract
An experimental investigation of the thermal and erosion performance of a number of modifications to the M456A1 105mm round was conducted. An unfired 105mm M68 cannon was instrumented with special removable thermal and erosion sensors capable of distinguishing differences between charges using only a few shots. The instrumented tube was shipped to ARRADCOM, Dover, for completion of firing tests. A number of modifications to the M456A1 round were selected by ARRADCOM for test. These included variations in additive construction, type, deployment, or amount as well as change in projectile obturation. Calspan's silicone ablative material was included among the additive types tested. It was found that while all additive types and deployments improved the thermal/erosion performance of the round compared with that containing no additive, best performance was obtained with the ablative configurations. For those, essentially no erosion was noted. Within the additive liner types, results suggest best performance from those containing talc rather than TiO2 and placed as far forward in the case as is possible. A ranking of all charges tested is given in the report. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1979
- Accession Number
- ADA082064
Entities
People
- Douglas E. Adams
- Franklin A. Vassallo
- K. W. Graves
Organizations
- Calspan