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Before knowing how to improve it is important to note that a propeller is no more than a set of rotating wings. In this blog, we will discuss how to improve the efficiency of Michigan propellers. The first and foremost thing that comes into play is that boats that benefit from lowering trim tabs considerably at cruise rpm might see big gains from foil propellers. It is because the downward angle of propeller shafts on most inboard-powered planning powerboats helps propellers lift the stern without the added drag of lowered tabs. It is also important that propeller blades raked increase stern lift by shifting the center of effort of that lift in relation to the fore-and-aft center of buoyancy of the boat. Noise, Vibration, and Cavitation Noise and Vibration of propeller come from Cavitation. To eliminate noise and vibration, simply adding the blades will do the work. Cavitation typically occurs as each propeller blade passes through the wake of the running gear and ...

Yamaha Propellers undergo rigorous wear and tear after which it becomes important to maintain. In this blog post, we will discuss some maintenance tips for Yamaha Propellers. Inspect your Yamaha Propellers regularly – It is important that you inspect your lower unit now and then. Remove the prop and apply marine grease to the Yamaha propeller shaft. Remove the lower drain plug and check the color of the lubricant, if it's white then water presence is there in your gearcase. Disassemble your propeller’s lower unit and replace the seal before using your outboard again. Change the gear lube of your Yamaha Propellers – It is easy to change the lubricant yourself. It is ideal if you rely on a dealer. Make sure you also replace the vent and drain screw seals each time. The battery in your Yamaha Propellers – Make sure to use the recommended size of the battery. Don’t compromise with the battery. Apart from that, consider adding one or two house batteries to power acces...

Getaprop Lasdrop shaft seals are the answer for an easily installed replacement to the original stuffing box on nearly any boat. Once installed, there is virtually no maintenance required. The original stuffing box models will last as long as eight to ten years before servicing while the Lasdrop Shaft seal will last three to five years before the inner lip seal must be changed. At the service interval, both the original and generation-II Lasdrop shaft seal models would most likely require refurbishing of the seal surfaces. Additionally, the bellows on the original model should also be inspected and replaced if found necessary. Lasdrop Shaft Seal – A Greener Solution for Boat Industry Lasdrop shaft seals are truly the green solution to preventing contaminated bilge water from entering the ocean you are in. Whether you are running a research vessel, a flashing boat, a world cruising sailboat or a workboat, keeping the water you run in clean is a good practice. Remember, ke...

Mixture of different metals getting in touch with salt water provokes corrosion. Without getting too technical, zinc anodes protect metals on the boat exposed to the harsh underwater environment by being the most likely to corrode. Basically, the zinc anodes corrode before the boat does, saving you costly repairs and headaches. Note that zinc anodes only work when they are electrically connected to the items they are intended to protect. The zinc anodes will be set up as part of ships’ bonding system and will be connected inside the boat via the long bolts.  Components of Boat Zinc Anodes Protect There are a variety of metals on your boat’s hull with salt water all around. A typical boat probably has some stainless steel (prop shafts and other components), different varieties of bronze (propeller, thruhulls etc) and possibly aluminum (outboard motor or outdrive components). With these different metals in salt water you get what amounts to a battery action. The di...

Selecting the correct anti-fouling product for your propeller and running gear has become a different process. The EPA has developed strict regulations for anti-fouling paints and there are few other alternatives that provide both results and longevity. Today’s anti-fouling products can be divided into two categories. The first category is paint that contains biocides that leach through the paint to create a toxic environment that marine organisms will not grow on. Then there are the smooth surface coatings that create a surface, that when the boat is moving, the barnacles and organisms will not be able to attach themselves.  Why Preventing Marine Growth is So Difficult? The Reason behind Formulation of Propeller Antifouling Technology The reason it is so difficult to achieve a surface that marine organisms will not grow on is a result of the harsh environment under the waterline.  Reasons Prevention of Marine Growth is Difficult? Dealing with mul...

The Duramax marine bearings are engineered with a proprietary formulation of extremely tough chemical and oil resistant nitrile rubber polymer lining, molded and firmly bonded into a naval brass or non-metallic shell. Groovers run the entire length of the rubber marine bearing allowing for maximum lubricating water flow and dissipation of frictional heat. The rotational power of a ship’s propeller is determined by the power produced by the marine engine to rotate crankshaft. The crankshaft of the main engine is supported and connected to the connecting rod via main bearings whose main function is to transmit the load without any metal to metal contact. This is achieved by choosing special materials for manufacturing main bearings which floats the journal pin of the rotating crankshaft when lube oil is supplied to it. Properties of Duramax Marine Bearings:   It must be anti friction resistant It must be of anti-corrosive type Good running in and grinding in abili...