. Every boy's book of railways and steamships . PLATE XXXIV. HAMBURG-AMERICAN LLOYD KAISER WILHELM II. BLUE RIBBON OF THE ATLANTIC 237 the boilers remain the same, as it is not a questionof increased steam consumption, but only obtain-ing all possible velocity out of the steam that isgenerated. Hitherto, in all steam-driven vesselstravelling at high speed, there was much vibration,which caused passengers almost as much discomfortas the rolling and pitching due to the motion ofthe waves. Vibration, too, has a wearing effect onthe machinery generally; and, in
. Every boy's book of railways and steamships . PLATE XXXIV. HAMBURG-AMERICAN LLOYD KAISER WILHELM II. BLUE RIBBON OF THE ATLANTIC 237 the boilers remain the same, as it is not a questionof increased steam consumption, but only obtain-ing all possible velocity out of the steam that isgenerated. Hitherto, in all steam-driven vesselstravelling at high speed, there was much vibration,which caused passengers almost as much discomfortas the rolling and pitching due to the motion ofthe waves. Vibration, too, has a wearing effect onthe machinery generally; and, in a rough sea, whenthe propeller is lifted out of the water, the screwraces at perhaps double its normal rate, creatinga very disagreeable motion for passengers andcarrying severe strain to the engines. In a turbine-driven vessel there is an almost complete absenceof vibration, and, as the propellers are obliquely setdeeper in the water, there is no racing and practi-cally no loss of speed, even in a rough sea. The first turbine vessel, the Turb
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Keywords: ., bookcentury1900, bookdecade1910, bookidever, booksubjectrailroads
