A CBO Paper: Modernizing the Army’s Rotary-Wing Aviation Fleet, November 2007 (39 pages, PDF).
Congressional Budget Office (CBO) estimates will have an average cost of about $3.3 billion per year, substantially more than the $2.2 billion per year average the Army spent on such programs over the past 20 years…The paper analyzes the costs and the capabilities of the Armys planned rotary-wing aviation fleet and offers four alternative approaches to modernizing the fleet. In keeping with CBOs mandate to provide objective, impartial analysis, this paper makes no recommendations.”