So, what better way to test out the N-gram Viewer than to try out the terms "sailing" and "boat" just to see the trend from 1920 to today. The results are pictured below - just interesting to note the slow decline of "sailing" while "boat" seems to be making a slight comeback... It is also interesting to graph the phrase "yacht racing". The words did not appear in print together until the late 1860s. "Sailboat racing" did not appear significantly until about 1920. Yacht racing is still out pacing sailboat racing in usage today.
RED LINE = BOAT BLUE LINE = SAILING