详情

原文传递 The Bull Calf Was One Of The Most Innovative Towboats

题名：	The Bull Calf Was One Of The Most Innovative Towboats
正文语种：	eng
作者：	DAVID SMITH
摘要：	One of the most significant towboats built during the 1930s was a somewhat obscure small boat crafted by the Nashville Bridge Company (Nabrico) in 1939. It was only 88 feet long by 21.5 feet wide. It had but a single cabin, with a pilothouse above that and mounted forward. A straight "stovepipe" smokestack, used by Nabrico on their boats of that era, was located behind the pilothouse. A tall mast was mounted at the after end of the cabin, and there was a long rudder deck behind the cabin. The small boat was of all-steel construction and had a single prop. The machinery located in the engineroom is where the innovation was found. For power, the boat had the first river application of a General Motors Cleveland diesel engine. This was a relatively new engine manufacturer and was the diesel engine division of the General Motors Corporation, located in Cleveland, Ohio. The 12-cylinder engine was rated at 750 hp. at 600 rpm. At the time this was considered to be a "high speed" engine. The diesel engines that powered prop towboats then were large, slow-speed engines. Most engines in boats similar to the Bull Calf and of comparable horsepower were direct-reversing, turned about 250 rpm. and were connected directly to the shaft.
出版年：	2023
期刊名称：	The Waterways Jouranl
卷：	137
期：	36
页码：	18,17