Product Improvement Test (Phase II) of Self-Propelled, M107E1 and M110E1 Weapon systems.
Abstract
These tests were conducted to evaluate numerous engineering changes to the M107E1 and M110E1 weapon system. The improvements were intended to overcome the operational problems, both armament and automotive, which had been reported from the field; mainly, from the Southeast Asia theater of operations. Testing concentrated on the engineering and durability aspects of the systems, with a brief summary of maintainability and reliability values. Prior to conducting the main armament tests, an initial inspection, and a 50-mile run-in check were conducted. All road testing was done with the 175-mm gun, M113 (i.e., M107E1 system). For various technical reasons, the main armament testing was accomplished in three steps; after 50-mile checks, after a special 323-mile road test, and after 3886 miles of automotive road testing. Both the 175-mm gun, M113, and the 8-inch howitzer, M2A1E1, were utilized at various test firing stages, in order that as wide a spectrum as possible, of maximum stress versus strain data, could be collected on critical areas. These included the test spades (i.e., new and interim), fuel cell bulkhead, traversing assembly mounting plate, and anchor support for No. 3 lockout cylinder. High-speed cameras were used to record vehicle stability under different test conditions, and to determine the effects of a new turret deceleration device on turret traversing rates. Of 20 armament component modifications, 16 were considered acceptable; the remainder (including some standard items) were recommended for improvement or further testing under field conditions. The weapon system is considered equal to or better than the standard M107 and M110 present production vehicles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1970
- Accession Number
- AD0877256
Entities
People
- E. C. Kotras
- R. H. Nelson
- T. P. Dieter