uncleflo
Registered since September 28th, 2017
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Marine Lightning Protection Inc.
Saved by uncleflo on May 11th, 2021.
Given the wide range of potential issues with lightning protection of ships, it is not surprising that a common problem is that the agent does not understand how to define the most pressing concern. Ill defined Class regulations, use of ambiguous terms such as "lightning arrestor", and the widespread availability of devices with checkered histories do not help. To this end we offer a standard 20-hour consulting package that provides basic concepts, identifies prioritized issues, and develops the framework for an effective lightning protective process. Please email us with questions or details. Another fundamental problem revealed in this scientific work was that a one square foot ground plate is "hopelessly inadequate" to prevent sideflashes in fresh water.This was not addressed in these earlier standard rewrites since, at the time, there was no obvious solution. We can now solve this problem with our patented SiedarcTM electrodes that, when distributed around the hull, provide the multiple exit points needed for effective grounding.
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Boat Lightning Attenuation Onboard
Saved by uncleflo on May 11th, 2021.
According to published reports, in the US out of the annual average of about 100 deaths due to lightning, approximately 13 are aboard boats. Suffice it to say that if lightning is a hazard where your boat will be used, a plan should be developed to deal with the possibility of a direct strike. In the Pacific Northwest lightning is relatively rare. In Florida, some areas annually have more than fifty strikes per square mile..! According to the well known lightning researcher Ewen Thompson, lightning can develop on the order of one hundred million volts, peak currents of tens of thousands of amps, and generate temperatures of some fifty five thousand degrees. Fortunately, it lasts only a fraction of a second, but within that time it can be deadly and / or very destructive. A lightning strike involves an extremely rapid change in an electric current, generating a momentary but extremely powerful magnetic field. This electro-magnetic pulse (EMP) will readily induce currents in adjacent wiring. Currents induced in wires by the EMP from a lightning strike may do some very weird things, such as fry every piece of electronics aboard. A strike nearby or on another boat can fry the electronics aboard your boat without even requiring an electrical connection or direct strike.
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Sailing Uma - THE MOTOR
Saved by uncleflo on February 24th, 2019.
Many people have written in and commented that an electric motor is only good for day sailors who weren’t going very far each day, and that you need a reliable diesel engine for long distance cruising. But we feel like the opposite is true. Since we don’t have a dock to tie up to and charge our batteries each night, we rely on sailing to recharge our system. The longer we sail and the more sun we get, the more power we make. Because we don’t have a 9-5 to return to at the end of a fun weekend out on the boat, we have no schedules requiring that we make it back to the dock on time, no matter what the wind is doing. So, we feel that an electric motor, depending on your sailing style, can be adapted to any boat. But, you have to be willing to work around the one major draw back, range.
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