MS Mount Washington

The MS "Mount Washington" is the flagship vessel of the Winnipesaukee Flagship Corporation. Its home port is on Lake Winnipesaukee in Laconia, New Hampshire, in the United States. The historic ship makes several ports of call around the lake during her scenic cruises in the spring, summer and fall months. Ice-Out is declared when the "Mount Washington" can get to all of its ports of call.
History.
Paddle steamer "Mount Washington" (the "Old Mount").
The history of the MS "Mount Washington" dates back to 1872 when the original paddle steamer "Mount Washington" was launched from Alton Bay. The "Mount" was the largest of all the steamers on the lake at in length, with a beam of . She was driven by a single cylinder steam engine of that operated at approximately 26 RPM. Power was transferred from the vertical cylinder to the paddle wheel shaft by the walking beam, high above the upper deck, oscillating at the frequency of the paddle wheels.
She was built by the Boston and Maine Railroad Company with the intent of transporting cargo and passengers around the lake. By the late 19th century it was not uncommon for her to transport over 60,000 passengers in a single season. In the 1920s, with the rise of the automobile and declining train usage, the Boston and Maine Railroad Co. made the decision to sell the steamer to Captain Leander Lavallee. Captain Lavallee operated the "Mount" as a tourist attraction, still drawing crowds of over 60,000 a season. 
The "Old "Mount"" graced Winnipesaukee for a total of 67 years before being destroyed on December 23, 1939, by fire. She was tied up at dock when a fire started at a nearby railway station. The fire spread down the dock and engulfed her at her home port. Efforts to cut the "Mount" loose were to no avail as it was a time of extremely low water and the hull was stuck fast in the mud of the lake bottom.
SS, MV and MS "Mount Washington".
Soon after, a local company was formed to build a new ship. Europe was already at war and obtaining steel in the USA was impossible because of pre-war munitions stock-piling. Instead, they purchased an old sidewheel vessel on Lake Champlain: the 1888 Harlan &amp; Hollingsworth-built "Chateaugay", a , iron-hulled sidewheeler that was being used as a clubhouse for the Burlington yacht club. It was cut into sections and transported to Lake Winnipesaukee on rail cars. A new twin-screw vessel was designed for the hull being welded back together at Lakeport. Powered by two steam engines taken from another ocean-going yacht, the new "Mount Washington" made her maiden voyage on August 15, 1940.
Two years after her launch, the new "Mount"'s engines and boilers were removed for use in a navy vessel during World War II. After the war, the "Mount Washington" returned to the water but with diesel engines, hence the "M/V" prefix designating "motor vessel." The ship was a success in the post-war tourist boom although she became a money-maker in the 1980s under the ownership of Scott Brackett.
In 1982, the "Mount" was cut open and extended with an additional hull section to add larger lounge and food service facilities. The larger size upped the ship's designation to M/S or "motor ship." More popular, the "Mount" makes one or two round-trips on the lake per day during the summer season, as well as numerous dinner dance cruises in the evenings.
In March 2010, the "Mount" was cut open, the unserviceable circa 1946 motors were removed (Enterprise DMG18 motors: 8cyl 615 hp), and the ship was repowered with two 'green' Caterpillar motors, giving more power and economy to the ship.
Current operation.
Seasonal cruises.
The "Mount" cruises the waters of Winnipesaukee from late May through late October. At the height of summer she will embark on up to four cruises a day. The "Mount" has five ports of call: Meredith Bay, Center Harbor, Wolfeboro, Alton Bay, and her home port of Weirs Beach. At night the boat travels the lake with no stops at ports for a scenic dinner dance cruise.
Winter harbor.
In the winter the "Mount" stays at its winter home at the port in Center Harbor. Bubblers in the water around the "Mount" keep the water from freezing and protect the vessel from ice damage. There is also a marine railway at Center Harbor that can be used to pull the ship entirely from the water. The task of pulling the "Mount" from the lake is a large one and only undertaken when a major maintenance job requires it.
Sister ships.
The MS "Mount Washington" has three smaller sister ships in the fleet. Doris and Sophie were constructed from spare boat parts from the US Navy following World War II, and the MV Winnipesaukee Spirit was launched in 1979 by Lydia Boat Works of Fort Pierce, Florida. 
MV "Doris E".
The "Doris E" makes daily scenic island cruises and stops in the port of Meredith. The "Doris" is in length and has its own snack bar, drinks, and bathroom.
MV "Sophie C".
The "Sophie C" is in length and was built by General Ship and Engine Works in East Boston, Massachusetts. She was christened "Sophie C" after Sophie Hedblom, wife of Carl Hedblom and mother of Byron Hedblom, owners of General Ship and Engine Works as well as the Winnipesaukee Steamship Corporation. The vessel was built to offer service on Lake Winnipesaukee while the M/V "Mount Washington" was out of commission due to the U.S. government requisitioning her engines for the war effort. The "Sophie C" is the oldest floating post office (and only inland floating post office) in the continental United States, and is the fifth boat to deliver mail on the lake. It cruises daily except for Sunday, delivering the mail to island residents. 
MV "Winnipesaukee Spirit".
The Winnipesaukee Spirit was added to the fleet for the 2021 operating season. Originally launched in Fort Pierce, Florida, in 1979, the Spirit last did marine charters in New Jersey before being brought to New Hampshire by the Winnipesaukee Flagship Corporation. The Spirit is equipped with its own bar and galley area and has indoor/outdoor seating as well as two lounge areas. The Spirit can also carry up to 99 general passengers and can seat up to 88 for dinner.