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A V-drive is a power transmission system for boats that consists (usually) of two gearboxes, two drive shafts, and a propeller.. Whereas the conventional arrangement sites the engine with its gearbox aft, driving the propeller shaft directly, in a "V-drive" layout, the engine is reversed, to have the gearbox in front.
Outboard motor shaft lengths are standardized to fit 15-, 20- and 25-inch (38-, 51- and 64-centimeter) transoms. If the shaft is too long it will extend farther into the water than necessary creating drag, which will impair performance and fuel economy. If the shaft is too short, the motor will be prone to ventilation.
A V-twin engine, also called a V2 engine, is a two-cylinder piston engine where the cylinders are arranged in a V configuration and share a common crankshaft. The V-twin is widely associated with motorcycles, primarily installed longitudinally, though also transversely. They are also used in a variety of other land, air, and marine vehicles, as ...
Length Overall (LOA) – The maximum length of the ship between the ship's extreme points; important for berthing purposes. Length at Waterline (LWL) – The ship's length measured at the waterline. Shaft Horsepower (SHP) – The amount of mechanical power delivered by the engine to a propeller shaft. One horsepower is equivalent to 746 watts.
Eton Racing Boats (ERB) Euro Diffusions; Flying Dragon Boat Co (Huangzhou, China) George Sharrow Racing Shells; Harris Racing Boats, formerly George Harris Racing Boats (Iffley, Oxford, UK) Hi-Tech Racing Boats; Lola Aylings; Karlisch; Kaschper Racing Shells; Kiwi International Rowing Skiffs (KIRS) Owen; Pirsch (Friedrich Pirsch Bootswerft ...
This is how some racing boats and tall ships use the term LOA. [3] However, other sources may include bowsprits in LOA. [4] Confusingly, LOA has different meanings. [5] [6] "Sparred length", "Total length including bowsprit", "Mooring length" and "LOA including bowsprit" are other expressions that might indicate the full length of a sailing ship.
The outdrive resembles the bottom half of an outboard motor and is composed of two sub-units: an upper containing a driveshaft connected through the transom to an engine which transmits power to a 90-degree-angle gearbox; and the lower containing a vertical driveshaft receiving power from the upper unit gearbox, transmitted through another 90 ...
That day the No-Vac set the world water speed record for an outboard powered boat of 78 miles per hour (126 km/h). The basic hull design of most hydroplanes has remained relatively unchanged since the 1950s: two sponsons in front, one on each side of the bow; behind the wide bow , is a narrower, mostly rectangular section housing the driver ...