The first attempts at Steam power ships was about 1800, it failed for the technology (In this case the ability to make close fitting REPLACEABLE parts did not exist, you could make close fitting objects but these were all HAND MADE and thus custom fitted, such as a watch, but when it came to something that needed to change parts as their worn out, that took a long time).
First Watts improved the Steam Engine, relying on the recent determination of how much heat did it take to convert water to steam. Then the invention of closer fitting tools (Which was dependent on the development of High temper steel, another product of the 1700s). Even with these inventions, steam power for ships were NOT possible till almost a century later. The first steam ship to sail the Atlantic did it in 1819, and then was converted back to sail do to the increase speed did NOT compensate for the deduced cargo to to the room needed for the Steam Engine and its fuel.
When Pennsylvania looks at ways to compete with the Erie Canal in the 1830s, the biggest problem was getting cargo over the Appalachians Mountains (Most importantly Allegheny Mountain forms the Eastern Continental divide, east of Allegheny Mountain all water flows into the Atlantic, West all water flows into the Gulf of Mexico. In 1830s, the steam engines of the time period were to small to be able to haul themselves AND their Cargo, so Pennsylvania opt for stationary engines (Which did NOT have to haul themselves up the mountain) to be used to pull cargo up s series of incline planes up and over Allegheny Mountain (Between most but NOT all of the inclines ran level railroad tracks, these were at first horse drawn then later steam powered). 20 years later, Steam engines had improved so much that the series of incline was replaced by a proper Railroad, but some of the improvement was done BECAUSE the inclines had provided a very good means to haul cargo from the Ohio Valley to the East Coast.
It is only with these larger steam engines that the Navies of the world started to shift to Steam power, but the US Navy in the 1850s preferred sail, for sail was cheaper (Even the USS Merrimack, the Ship that was the base for the Iron Clad USS Virginia, was 100% sail, when the South took the Merrimack over, their installed a railroad engine and installed iron on the Merrimack, it was more a retrofit then something new (The Monitor was 100% new, new steam engine, new Iron and even new cannons).
during the Civil War, the USS Constitution was kept on as a sailing ship, guarding American Interests in the Mediterranean Sea. After the Civil War, steam became the normal way to move ships, but the US Navy still used sails, in fact in the 1870s tested and fitted to US Navy ships a screw propeller design to provide the least drag whenever the ship was under sail. This is just to show how sail stayed important even in the 1870s and 1880s.
Only in the 1890s did the US Navy adopt ships that was to use Steam exclusivity (Sails were kept on to help extend the range of the Ships but sails were viewed as an exclusive secondary means by power by the 1890s, something it had NOT been in the 1860s to 1880s.
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As to Civilian Ships, sail stay quite common till WWII, when do to the German U-Boat threat, the sailing ships were finally restricted to areas U-boats did NOT operate in. Since these were also areas with little cargo traffic, the sailing ships were left to rot or used in the North Atlantic anyway, where they were easy targets for U-boats (and if they were German, easy targets for Allies bombers).
On the other hand up till that time, sailing ships were quite common and useful. The increase man power needed for sailing ships, was more then off set by the savings in fuel. After the end of WWII Sailing Ships NEVER made a comeback do to how cheap oil became in the 1950s (25 cents a gallon for gasoline INCLUDING almost 10 cents in taxes was the price at local gasoline pump, oil for ships was even cheaper for such ships could and did use very low quality oil). Russia did NOT seem to have this problem and retain a good size fleet of sailing ships doing that time period, the side affect of this is most people who want to operate LARGE sailing ships today up being Russian manned for the simple fact the Russians have the most sailors who know how to sail large sailing ships today.
Thus it took over 120 years (1819 to 1939) for sailing ships to die out, to be replaced by wood burning steam ships, then coal burning, the oil burning steam ships, then diesels. It was competitive till the invention for the Square convoy system (One ships beside another in front of another and beside another, all going at the same speed, something the sailing ships could NOT participate in) forced the sailing ships to be sitting ducks for U-Boats. Till then Sailing ships were competitive.
One of the reason for this slow change was the dock structure and shipping structure had to be changed. The larger the ships the more sense it made to go to Steam, PROVIDED the Ship could be filled. The Classic situation is the "Great Western" and "Great Eastern" ships of the mid 1850s. The Great Western made money for its owner, it was the largest ship of its day and could clear out a whole dock and ship it cheaper then any other ship. Do to the success of the "Great Western", the owners decided to build an even larger ship the Great Eastern. The "Great Eastern" would be a small ships today, but in its time it was the largest ship in the world. The first thing the "Great Eastern" did was lay a telegraph cable from England to the US, so you did NOT have to wait six weeks for news in Europe to get to the US (one week in the reverse direction, but that is do to the Gulf Stream). After that trip the "Great Eastern" NEVER made money, and in fact NEVER paid for its cost of Construction. Why? Simple, it was to large for what was being shipped at that time. If it waited for a whole shipments, owners of part of the cargo would take their cargo to smaller ships to get the cargo to market within a reasonable time period. If it "sailed" before it was full, the cost of the fuel was more then the profit from the small cargo it was hauling (i.e. the "Great Eastern" "sailed" without a full cargo, but had to pay for its fuel and crew none the less). By the time docks had grown enough to handle the Cargo something like the "Great Eastern" could haul, the "Great Eastern" had been scrapped.
On the other hand the Cutty Shark, a British Clipper was sail only and stayed in the "China Trade" till the 1890s (When do to increase trade via the Suez Canal, the tea business went from sailing ships to steam ships, please note a greater factor was the fact that steam ships could have Coolers to keep something like tea fresher).
The reason for use of sailing ships for tea was simple, sailing ships were FASTER on the long trip from China to England on the grounds they NEVER had to stop to refuel. This remained a factor till steam ships started to go with coolers to keep the tea fresher (That is in the 1880s).
Now, the Cutty Shark, was an Iron Frame wooden cutter . Americans had invented the Cutter in the 1850s for the trip from the East Coast to the West Coast via the Straits of Magellan (These were wooden FRAMED for the US had limited Iron Production in the 1850s). In the 1860s Britain adopted the Cutter but went for Iron Frame instead of wood frame and could haul more cargo then the older Amerian Cutters. The Americans abandoned the cutter do to the completion of the 50 plus mile railroad across Panama AND the B&O and Pennsylvania Railroads in 1854 made it quicker to go to by rail from the East Coast to Pittsburgh by Rail, then by River to New Orleans, then by ship to Panama, then take the railroad across Panama then take a ship from Panama up to California. This left the American Cutters with little business (The key to the Cutter was SPEED, when another faster way was possible the Cutters all disappeared, in case of most of the Wooden built American Cutters, most were sold to Britain for the China Trade).
While the Cutters disappeared as the 1800s ended other more conventional sailing ships stayed around, for example the Mary Celeste and even the Cutty Shark (Which was converted to a Barquentine so it could be operated with a smaller crew and stayed sailing till WWI, when no one dare take it out to sea do to the WWI U-Boat threat. In peace time sailing ships were PROFITABLE till WWII, and many stayed PROFITABLE till the 1950s (When the drop in the price of oil finally killed them off).
Cutty Shark:
http://en.wikipedia.org/wiki/Cutty_SarkFor more on the Mary Celeste
http://en.wikipedia.org/wiki/Mary_CelesteBarquentine, a sailing ship that could use a smaller crew then a full rigged ship, most popular in the late 19th and early 20th centuries:
http://en.wikipedia.org/wiki/BarquentineMy point it took 120 years AND the U-boat threat NOT 25 years to kill off the Sailing ship, till the 1940s they were competitive. The main reason had NOTHING to do with the advantages of Steam over Sail, but had to do with how Cargo was SHIPPED AND the infrastructure to support such shipments. You needed bigger Docks AND means to get cargo to the Docks (Thus you needed to build Roads, the canals, then railroads at the same time as the docks). These three things went a circle, more railroads lead to more docks and larger ships, but you could NOT build a ship larger then what the docks could handle. Thus the size of the docks and the transportation system to that dock was more important then the size of the ship. Furthermore it was the size of ALL DOCKS the ship would go between NOT just one dock. The Cutty Shark was the right size for its day, the "Great Eastern" was not. Today the "Great Eastern" would be to small and the Cutty Shark way to small. It took over 120 years to get the dock and other transportation system up to support something like the "Great Eastern", not 25 years.
As to transiting to renewables, we are NOT just talking about the shipping industry, we are talking about a much larger transition converting EVERY FAMILY THAT HAS A CAR to some other means to provide energy to that car, to their homes etc. The Carburetor was invented in 1899 (Without the Carburator Gasoline powered cars were hopelessly inefficient, thus the invention of the Carburator is the key to the start of the Switch to Automobiles). From 1899 till WWII, most Americans did NOT own a car. It took to 1954 before more Americans were buying replacements for their old car instead of buying a new car for the first time in their family history (Neither of my Grandfathers owned a car, nor their wives, yet all of their children did). So it took from 1899 till 1954 (53 years) before most American Families had a car, and this in a country that did NOT impose any restrictions on car ownership and gasoline was 25 cents a gallon, including 10 cents a gallon in taxes. Passenger train and Inner City Streetcars stayed competitive till about that time period, then went into rapid decline (By the 1960s all were in Government hands to preserve them for those people who can NOT use a car).
The conversion from non-automobile to an automobile society took over 50 years, that was FAST and I am one who do NOT think we will convert to Renewables as quickly. European cities was noted for still using horses in the 1950s, while America had stopped using them in the 1930s. Poland and Russia were still using horses in the 1980s (if not today). Most of the world never made the transition to a exclusive automobile society for most of the world found the price was to high (The US had the largest amount of oil in the world, even today the US is the third largest producer of oil, behind only Russia and Saudi Arabia, thus the US had huge cost savings by going with oil, that the rest of the world did not have). A conversion from oil base society to a society that uses Renewables will take much longer then even Europe did in converting to an automobile society. 50 years may be to short, and to long.
Just pointing out that the conversions in the past took 50 to 120 years not just 25 years. The Military can often move that fast (25 years) but often finds itself at what even pace its civilian economy is at (Russia and Germany during WWII are good examples of such restrictions). IT will take a long while to make the conversion, a longer period then I think we have to make the conversion.