Archive for flipped

The Leash receives U.S. Patent

We just noticed The Leash, a tether to prevent outboard motors from flipping into boats when striking submerged objects, received U.S Patent 9,771,136 back on 26 September 2017. Some of our work in this field was cited in the patent references as well. Roy John Grohler is listed as the inventor and the patent is […]

The Leash patent application was published by USPTO

The Leash, a tether for large outboard motors, entered the market in early 2016. They especially focus on preventing bass boat outboard motors from entering the boat after striking a floating, submerged, or fixed object. Their patent application was filed 22 December 2015 and published 18 months later on 22 June 2017 by the U.S. […]

Brunswick follows our lead, patents active trim cylinder US Patent 9,290,252

In December 2013 we published a report, Approaches to Prevent Outboard Motors From Flipping Into Boats After Striking Floating or Submerged Objects in which we identified several ways to prevent outboard motors from breaking off and flipping into boats after striking submerged objects. One of those was was active trim control (see pages 33-34 of […]

Designing a Log Strike Test Stand to Verify Durability of Outboard Motor Prototypes

We have previously written extensively on log strike testing, the variables involved, and more specifically on trying to prevent outboard motors from breaking off and entering boats after striking floating or submerged objects. This installment focuses purely on durability testing of prototype outboards. It does NOT address the issue of outboard motors breaking off and […]

Log Strike Test System designed by student in Sweden: Fredrik Helgesson

A college student in Sweden, Fredrik Helgesson, designed a test stand to log strike test outboard motors (outboard motors impact floating logs). The report is titled, Konstruktion av “log strike”-testrigg for utomboardsmotorer. Back in early 2016 Mr. Helgesson, a mechanical engineering student at Halmstad University in Sweden, contacted us a few times for technical specifications […]

USCG NBSAC97 Our Public Comment

The U.S. Coast Guard National Boating Safety Advisory Council (NBSAC) will be holding its 97th meeting on March 23-25, 2017 in Arlington, Virginia. Their March 2, 2018 notice in the Federal Register invited public comments, due by March 6th if they were to be distributed in advance to NBSAC members. We submitted a pubic comment, […]

NBSAC 95 on outboard motors breaking off and flipping into boats

The U.S. Coast Guard National Boating Safety Advisory Council met for its regularly scheduled NBSAC 95 meeting April 21-23, 2016 in Arlington, Virginia. Minutes of that meeting were posted in October 2016. We have spent considerable effort in recent years encouraging NBSAC to: Recognize outboard motors are breaking off and entering boats with their propellers […]

Design Chart for Preventing Outboard Motors From Entering Boats updated

Back in July 2016, we posted a chart for use in designing and testing outboard motors in a way to prevent them from breaking off and entering boats when striking submerged objects. Today we are posting an updated / enhanced version of that chart. The new chart specifically identifies three more potential design / testing […]

USCG to Issue Debris Warning for San Francisco Bay 15 February 2017

We have been following the rising waters in California which the industry was first touting for the additional sales it would generate as many lakes had been down a while depressing marine sales there. Now as waters continue to rise, California faced/faces continuing issues at the Lake Oroville Lake spillway evacuation, and now the United […]

Bean partially wins appeal in Barhanovich case in U.S Court of Appeals

Back in 2012 Mark Barhanovich of Biloxi, Mississippi was going out fishing in his boat with a friend just off Biloxi. The Suzuki outboard motor struck a dredge pipe, broke off, flipped into the boat, and killed Mr. Barhanovich, at least partially with the propeller. Bean, the dredging firm, previously settled with the Barhanovich family. […]