original_query: What were the key factors that contributed to the successful performance of the 52 ton M48A3 during the initial two-week fight?
query: What were the key factors that contributed to the successful performance of the M48A3 tanks during their initial two-week combat operation in Vietnam?
answer: The M48A3's success in its initial two-week combat operation stemmed from its improved features compared to older models, such as the V12 Continental Diesel engine, which doubled its combat range and reduced fire hazards.  The operation also highlighted the tank's effectiveness in reducing friendly casualties and increasing enemy losses, especially when used in conjunction with effective tactical employment.