As part of our continued efforts to encourage the boating industry to address the boating safety hazard of boat outboard motors striking submerged objects and flipping into boats, we published a list of approaches, methods, and technologies used by others, or that appear potentially applicable to this problem.

The paper itself is about a 10 MegaByte 175 page pdf document titled:

Approaches to Prevent Outboard Motors From Flipping Into Boats After Striking Submerged Objects.

We also provide current updates, links to several of our related projects and some videos below.

Updates

• Supplement #1 to the third edition of the document above was published in November 2020

Some of Our Related Projects

• Log Strike Testing – 1950’s Mercury Video
• Log Strike Testing Part 1
• History of Log Strike Testing Part 2
• Outboard Motor Struck Submerged Object And Flipped Into Boat: Exemplar Outboard Boat Accidents
• Boat or Boat Motor Stuck Submerged Dredge Pipe: Exemplar Boat Accidents
• Preventing & Mitigating Injuries and Fatalities from Outboard Motors Flipping into Boats: Methods & Technologies Chart
• June 2014 UPDATE – Bass Boat Outboard Motors Struck Submerged Object, Flipped into Boat: a List
• Why Outboards Used in Bass Tournaments Disproportionately Break Off & Flip into Boats Compared to Other Outboard Motors paper

Log Strike Testing Videos

Mercury Log Strike Test

Cummins MerCruiser Diesel Zeus Log Strike Testing at 3:35 on timer

Download: Mercury 2012 Film Festival Log Strike video