PropellerSafety.com

Outboard Flipped Into Boat

Barhanovich case settled

Mark Barhanovich was killed when his Suzuki outboard motor struck a dredge pipe alleged not to be properly marked on Sunday morning September 16, 2012 off Biloxi Mississippi near Deer Island. The Suzuki outboard broke off, flipped into his boat. Later that morning, Mr. Barhanovich, a widely known and respected local figure, died from his […]

Print Friendly, PDF & Email

Kickup bracket with jack plate patent application

David Vance Jr. filed a patent application for a jack plate integrated with a kickup bracket. The kickup portion of the assembly is chained prevent over rotation of the outboard when a submerged object is struck. The patent application was published 22 November 2018. Mr. Vance, the inventor, says this design is for faster vessels […]

Print Friendly, PDF & Email

Brunswick Patent Application prevents groundings

Brunswick Patent Application US 2018/0335788 A1 for “Systems and Methods for Raising and Lowering a Marine Device on a Marine Vessel” was published 22 November 2018. The patent application provides some automatic modes for monitoring drive trim, jack plate height, water depth, GPS location, heading, navigational map water depth, speed, throttle position, and other variables […]

Print Friendly, PDF & Email

Design Chart to prevent outboards from flipping into boats – UPDATED

We updated our Design Chart to Prevent Outboard Motors From Entering / Flipping Into The Boat After Striking Submerged Objects today (23 October 2018). The primary addition was adding the option to Minimize the Hazard of the Outboard Entering the boat by killing the engine when the outboard breaks loose from the boat. The industry […]

Print Friendly, PDF & Email

Large Outboard Motor flipped into boat list updated

We updated our list of large outboard motors breaking off and flipping into boats on 7 October 2018 and are posting it today. We continue to see example after example of large outboard motors breaking off and flipping into boats. We encourage the boating industry to read our list of ways to prevent them. Outboard […]

Print Friendly, PDF & Email

“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 […]

Print Friendly, PDF & Email

FLIR files patent for submerged object avoidance system

In June 2017 FLIR Systems, well known for recreational boating navigational and infrared products, filed U.S. Patent Application 2017/0158297 for “Watercraft Protection Systems and Methods”. FLIR’s patent application describes the use of sensors (including depth sensors and boat speed sensors) interfaced with existing trim tabs, trim and tilt systems, jack plates, and potentially new vertical […]

Print Friendly, PDF & Email

Mercury patented outboard motor tether in 1969

With all the chatter about The Leash we thought we would point out the first commercially available outboard tether for larger outboards was invented and sold by Mercury Marine. Mercury’s efforts preceded The Leash by nearly 50 years. This post is best viewed on a laptop or desktop computer. This post in no way belittles […]

Print Friendly, PDF & Email

Mercury Marine Aluminum Alloy patents & propeller safety

As noted before, outboard motor swivel brackets take tremendous loads during a collisions with submerged objects. On occasion swivel brackets fail, sometimes allowing the outboard motor to break off and flip into the boat with the engine still running and the propeller turning a few thousand RPM. Driveshaft housings (the lower leg of the outboard) […]

Print Friendly, PDF & Email

Rex Chambers speaks on The Leash: video

Rex Chambers, well known professional bass angler and his fishing partner were injured 3 May 2014 on Wheeler Lake in Alabama when they struck a submerged log, the 250 horsepower Mercury outboard motor broke off, and flipped into the boat still under power. His fishing buddy was struck in the head by the skeg. Rex […]

Print Friendly, PDF & Email