【英文】美国智库报告：美国军事力量2021财年报告：海军部分（29页）

Te Navy projects that active-duty end strength will continue to grow, reaching 349,100 by FY 2025.  However, unlike its projection last year and for several past years, this projection levels of.  Tis does not look like a personnel plan for 355 ships or 500+ ships. Indeed, just last year, the Navy said  it was 6,200 sailors short in the feet.1  Instead, this projection looks like a placeholder designed to save  money until a long-term feet plan is put in place.Te Navy reserve has been in a long-term decline, unlike other reserve components. Although its end  strength has been roughly stable since 2014, by FY 2025 the Navy Reserve will shrink a bit further to  58,000. Tis long-term decline results from the retirement of all Navy Reserve ships and many Navy  Reserve aircraft, so the remaining forces are mainly logistics, support, and staf augmentation. While these  have an important role, that role is much narrower than in the reserve components of other services. 

The number of civilians increases by 1,700. Te Navy, like DOD in general, emphasizes that most civilians  work outside Washington and are a critical element of readiness because of the work they do on facilities  and maintenance.In part, the decline in ship numbers resulted from Navy decisions to buy bigger, and more expensive, ships.  As the chart on tonnage shows, today’s feet has 54 percent of the number of ships of 1988 (303 versus  565) but 87 percent of the tonnage. Today’s DDG-51 destroyer (Flight IIA) displaces 9,700 tons, twice the  tonnage of a 1980s Charles F. Adams-class destroyer and four times the tonnage of a World War II Fletcherclass destroyer (2,500 tons). Indeed, the DDG-51 has the tonnage of a World War II cruiser. Te increased  size produces greater capability, but ships can only be in one place at a time.