More Information On The Boating Scene
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Learn More About best jet boat
There is no engineering limit to the size of jet boats, though the validity of their use depends a lot on the type of application. Classic prop-drives are generally more efficient and economical at low speeds (up to about 20 knots) but as boat speed increases beyond this the extra hull resistance generated by struts, rudders, shafts etc means waterjets are more efficient in the 20-50 knot range. Also, in situations where you need very large propellers turning at slow speeds (such as tug boats) the equivalent size waterjet would be simply too big to be practical. For these reasons the vast majority of waterjet units are installed in high speed vessels and in particular situations where shallow draught, manoeuvrability and load flexibility are main concerns.
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Before 1990, personal watercraft emissions were unregulated in the United States. Many were powered by two-stroke cycle engines, which are smaller and lighter than four-stroke cycle engines but much more polluting. Simple two-stroke engines are lubricated on a "total loss" method, mixing lubricating oil with their fuel; they are estimated to exhaust in excess of 25% of their fuel and oil unburned in addition to the products of incomplete and complete combustion.
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Some Boating, Sailing And Marine Stories
Sydney Harbour Sea Trials - Seeking Sailing Crew
Sun, 16 Sep 2007 12:26:08 +0200
Seeking sailing crew for 44' steel cutter. Join on Sydney Harbour. Yacht is coming to the end of a major refit so initially short trips (1 to 4 hours) are envisaged. Initial destinations are not important, so by route by negotiation.
Full details ....
To All Cruisers - Information On Cruising Expenses.
Sat, 22 Dec 2007 20:35:45 +0200
This is not "how much does it cost to cruise." This isn't "How much did you spend in Fiji?" This is, "what do you spend on a monthly or weekly basis in the various ports while cruising?" It doesn't have to be exact, and shouldn't be overblown, but this is intended to buttress the arguments of many destination-based businesses that cruising sailors are good for the local economy. This is a subject near and dear to my heart, because it isn't just Fiji who discounts the cruising sailor as a benefit to the economy, and it's the powerful resorts who get the ear of government in most economies dependent upon the tourist dollar.
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Panama Canal Transit - Current Cost Details for sailing yachts.
Fri, 14 Sep 2007 11:58:44 +0200
Firstly, I use an agent for a sailing yacht where a lot of cruisers do everything themselves and thus save quite a considerable amount of money. The reason for using an agent is time - we are undertaking a delivery and the quicker we can get through the canal the better. I used Stanley Scott and he is kept updated as to the date and time of our arrival in Colon.
Full report ....
Sailing west across the Indian Ocean from Australia?
Fri, 22 Dec 2006 23:33:59 +0200
Tony Herrick has published two new marine ebooks covering the sailing passage across the Indian Ocean. 1) "Indian Ocean Crossing Notes - East to West and West to East". 2) "Cruising the Islands & Atolls of the Mozambigue Channel" And of course his ebook "Welcome to Durban - A Sailor's Guide" - to assist sailors to make safe landfall in South Africa.
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Cruising Fiji - Up To Date Information.
Fri, 21 Dec 2007 14:41:58 +0200
Some very important information has been updated TODAY on the Cruising & Sailing Wiki's Fiji page. Cruisers planning to visit Fiji should read this.
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30 foot sailboat
posted by WhaleboatMariner @ 6:31 AM
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