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Archive for Propeller Safety

Sharrow Propeller receives rave review from BoatTest

Sharrow Propeller is one of many propeller developments we have followed over the years. The loudest ones sometimes turn out to be all hype focused on luring investors into an unproven technology with some big names associated with it. A few have staying power. It sounds like Sharrow Propeller may be the latter. BoatTest.com a […]

Media still misleads boaters on Kali’s Law impact on fatalities

Our June 2019 post, Kali’s Law: Misleading Fatality Statistics explained in detail how the media is publishing misleading boating fatality statistics surrounding Kali’s Law. Kali’s law will require the use of kill switch lanyards on certain power boats under 26 feet beginning September 1st, 2019 in the State of Texas. Texas media outlets continue to […]

RYA Kill Switch lanyard wear PSA 2019

Royal Yachting Association (RYA) of the United Kingdom (UK) released a great “wear your kill switch lanyard / kill cord” Public Service Announcement (PSA) August 6, 2019. In the UK kill switch lanyards are referred to as “kill cords”. RYA’s PSA is titled A Kill Cord Could Save Your Life. While the PSA is supported […]

Sensor Based Detection of people near boat propellers: Patents

The phrase Virtual Propeller Guard broadly refers to methods used to detect the presence or likely presence of people or objects in the water that may be struck by or pulled into a boat propeller. Long ago we posted a more concise definition of Virtual Propeller Guards. With increasing activity in the use of sensors […]

Propeller Safety Year in Review 2018

A brief review of the major propeller safety events in 2018 including safety meetings, accidents, legal cases, deaths of those involved in the movement, statistics, patents, articles published, public service announcements, anniversaries, regulations, and other related events.

“Preventing Outboards from Flipping into Boats” updated

The third edition of our paper, Preventing Outboard Motors From Flipping Into Boats was published online today, 25 July 2018. It has been about 3.5 years since we last updated the paper. Many things have happened since then. Several new methods and technologies have been added to the list. The 3rd edition covers many new […]

LifeCord – smart kill switch lanyard

Inspired by the 2013 Milligan accident in the UK, John Barker, a UK businessman did something about the problem. At least in the UK, some boaters, especially those in rougher water want to attach their kill switch lanyard (known as a kill cord in the UK). However sometimes they forget to attach the lanyard. This […]

Brunswick follows our lead, files patent for neural network Virtual Propeller Guard

Brunswick Corporation filed U.S. Patent Application “Person Detection in a Marine Environment” on 5 May 2016. The patent application (US 2017/0323154 A1) was published by the U.S. Patent Office on 9 November 2017. As of late January 2018, the patent has yet to be granted. The basics of Brunswick’s patent application teaches the use of […]

Propeller Safety Year in Review 2017

A brief review of the major propeller safety events in 2017 including safety meetings, accidents, legal cases, deaths of those involved in the movement, statistics, patents, articles published, public service announcements, anniversaries, regulations, and other related events.

Regulations proposed requiring propeller guards on boats used to instruct children: New York

An 18 July 2017 Centerport Yacht Club propeller accident claimed the life of 12 year-old Ryan Weiss. Three boys learning how to sail were with a sailboat that had been capsized on purpose as a training exercise. One of the boys, Ryan Weiss, was picked up by a RIB piloted by an 18 year old […]