FACTS FOR THE SERIOUS LIVEABOARD
4. NEVER INSTALL SAILDRIVES
While a saildrive installation of a compact unit of engine and drive train offers some advantages for convenient and relatively inexpensive installation by the builder, there are significant disadvantages to this type of installation.
Disadvantages of Saildrives:
Some disadvantages of this type of propulsion are:
- limited options for locating the saildrive unit
- concentrated weight (often in less desirable zones)
- added complications for ownership due to serviceability and corrosion susceptibility
These complications are due to the necessity of immersing the complex components of the saildrive gearbox and their aluminum housing in salt water. These are serious issues for any owner that will venture beyond the reach of ready service facilities.
While electrolytic corrosion may be experienced by either drive train system, the addition of aluminum alongside the required stainless steel and bronze components (shafts and props), makes the saildrive considerably more demanding of anode maintenance on the part of the owner.
Antares Shaft Drive Placement:
Antares installs the engine weights approximately amidships to favour improved vessel wave reactive motions. By using a shaft drive, the propellers and shaft exits are placed for best handling under power (in front of the rudders) and have minimal drag (at junction where the keel meets the hull at a point where disruption of flow would be minimized). Additionally, the props located deep in the water are not subject to aeration in a heavy seaway and there are no restrictions to the choice of propeller style.
Continue reading “Facts for serious liveaboard”: