Propeller Guard Information Center

Archive for Boating Safety

An NSW Transport Roads and Maritime accident investigation report dated February 2, 2012, “Report of a Special Purpose Investigation: Into a Propeller Strike Injury Involving an Australian Defence Force Academy Vessel on Lake Burrinjuck NSW on 14 February 2010″, found a group of Cadets and Midshipmen were undertaking training for water insertions (leave the RIB while underway) on Lake Burrinjuck NSW. After the training, the Cadets took the 6.3 meter RIB powered by a 115 HP Yamaha outboard for a joyride including high speed turns during which several people were ejected. In one of those incidents, a Cadet fell from the boat and sustained life threatening injuries from the propeller.

NSW Propeller Accident Investigation Report

NSW Propeller Accident Investigation Report

The investigation found:

  • The Defence literature provides sufficient guidance to conclude that a propeller guard should have been fitted unless there were compelling operating reasons not to do so.
  • There is no evidence of any compelling operational reasons for not fitting a propeller guard.
  • There is no evidence that the vessel was previously fitted with a propeller guard.
  • The risk assessment for water insertions did not adequately consider the likelihood and consequences of a propeller strike.
  • There was no assessment for joyriding.

While the report does not identify the injured Cadet, it is obviously Oliver Minchin. This was a very high profile accident in Australia. Senate Leader Nick Minchin is Oliver Minchin’s father. The accident and Oliver’s recovery were prominently covered in the news.

0 Categories : Regulations

ABYC (American Boat and Yacht Council) and CED (CED Investigative Technologies) recently completed a draft of the Propeller Guard Test Protocol. We announced they requested public comment from interested parties by April 11, 2012 on our Propeller Guard Test Protocol Released by ABYC/CED for Public Comment page.

We sent in our comments today (April 11, 2012) and are posting them below. Read More→

Effectiveness of Propeller Guards

CED Propeller Guard Testing @ SUNY

CED Propeller Guard Testing @ SUNY

About 2006 the U.S. Coast Guard began consulting and contracting with some experts to produce a test protocol for propeller guards. The American Boat and Yachting Council (ABYC) and CED Investigative Technologies are now finalizing that process for USCG. CED Investigative Technologies is a forensic engineering and accident reconstruction firm specializing in providing legal support to legal firms, insurers, and manufacturers.

ABYC and CED have completed the rough draft of their propeller guard protocol, titled “The Effectiveness of Propeller Guards” and are now putting it out for public comment before delivering the final draft the the U.S. Coast Guard later this Spring. Read More→

The Storm Lake Iowa Laass v. Brunswick case has focused attention on boats and marine drives striking submerged or floating dredge pipes / dredge lines. In the Storm Lake accident, a ten year old boy, David Paul McFarlin was killed on May 31, 2010. A 175 HP Mercury outboard struck a submerged dredge pipe, flipped back up into the boat, and the boy was killed by its propeller.

We started looking for a list of similar “struck dredge pipe” accidents and were a bit surprised not to find any such list. We thought it might especially exist over in the dredge safety literature, but found no such list there either. We found some dredge safety studies, but they focused on the safety of dredging employees, not boating safety.

In the absence of a list, we started making one ourselves. Earlier, when we started making a list of outboard motors that had flipped into boats, we jotted down several U.S. Coast Guard Boating Accident Report Database (BARD) accident numbers for dredge pipe strike accidents. We went back and fleshed out those accidents into a spreadsheet format including the basic statistics surrounding those accidents.

We also checked some media (news) reports, boat forums, and other online sources for additional boat or outboard motor or stern drive struck a floating or submerged dredge pipe accidents. We found almost countless reports online, but few of them are well documented, so we left them off our list. It looks like these accidents happen much more frequently than they are reported to BARD.

The spreadsheet below summarizes our findings. You can download a pdf of the spreadsheet that includes additional columns of data by clicking on it. It is best viewed on a 24 inch or larger monitor. Read More→

We attended the 2012 Tulsa Boat Show on Saturday morning February 4, 2012. While still getting used to my new digital camera, Lora and I walked around and shot photos of propeller warning decals. I am well aware there is quite a bit of variety in propeller warning decals, but found an even broader selection at this show than I would have anticipated. We show some of them below, as well as some other warning labels seen at the 2012 Tulsa Boat Show.

The comments below are NOT an analysis of boat propeller warning labels. They are just our quick observations of some of the variety seen in propeller warning labels at a single boat show. We are not saying any of the labels are better or worse than others. We are just saying they are different. We continue to encourage the industry to adopt ANSI Z535 standards for boat propeller warning labels.

Propeller Warning Decal with Ladder

Propeller Warning Decal with Ladder

Many propeller warning decals are used in conjunction with the boat boarding ladder as shown in the Brunswick Bayliner boat ladder example above. We talk further about Brunswick’s use of a Danger label instead of the typical Warning label later in this post. Read More→

0 Categories : Legal Shorts

Many industries have created “checkoff” programs to generate funds to promote their “produce” or “product”. “Checkoff Programs” originally referred to programs where the manufacturer/producer was presented a checkoff box at time of sale they could check if they elected to participate in the program. Early programs were very successful, and more quickly followed. Some are mandatory, but they are often referred to as “Checkoff Programs” as well. Agriculture produce growers widely adopted Checkoff Programs. Funds are used to promote their produce in general, not a specific brand. Among the more popular agricultural checkoff programs are: “Beef, It’s What’s for Dinner” and “Got Milk”.

Prop Aware Propeller Safety Campaign

Australian Take Care Be Prop Aware campaign logo

Manufacturing industries have also turned to the practice. “Discover Boating” is an example.

We suggest a checkoff program for “Propellers” could be used to generate funds to promote recreational boat propeller safety. Currently, most of the focus on propeller accidents is on the manufacturer of the stern drive or outboard involved in the accident. The entire boating industry is benefiting from stern drive and outboard production, and most notably, those manufacturing propellers would be in a far different situation if outboards and stern drives did not exist. We suggest propeller manufacturers could shoulder at least a small portion of a major propeller safety initiative by voluntarily donating to checkoff funds. Read More→

We propose a tax on fatal boat propeller accidents similar to a tax on pollution as a means of encouraging marine drive companies to prevent propeller injuries.

The U.S. Coast Guard Advanced Notice of Proposed Rulemaking surrounding propeller and carbon monoxide safety (USCG-2011-0497) asked for public comments on possible strategies to reduce propeller injuries. Thinking about the continuing inaction of the boating industry when many good tools are readily available, I began to look to examples in other industries, where firms previously resistant to human welfare issues had been energized for change. I quickly came to the automotive industry and how they originally resisted calls to improve mileage and/or reducing emissions. Established regulatory targets forced them to action (new car emission limits and fleet mileage targets).

Propeller Fatality Permit mockup

Propeller Fatality Permit mockup

Somewhat similar process have been used on broader industries to regulate emissions. Notable policies include:

  • Taxing of emissions
  • Cap and Trade of emissions permits (credits)

We regulate emissions for public welfare. Beyond the desire for clean air, emissions kill asthmatics and others with breathing issues, as well as bring on other medical problems. Automotive mileage is regulated to reduce fuel consumption which reduces emissions.

Our parallel idea is to consider fatalities from boat propeller accidents to be parallel to boating emissions and regulate them with a cap and trade system as well.

We are not saying the program as described below should be implemented. We are just presenting it to generate discussion. Some version of this approach might be an effective incentive in encouraging the industry to take action while not placing too large of a burden upon them. We welcome your comments.

We note the U.S. Coast Guard added a data field to their Boating Accident Database (BARD) in 2009 for “engine manufacturer”. Many accident reports have no entry in that data field, but it offers an opportunity to associate propeller fatalities with the manufacturer of the stern drive or outboard motor involved in that accident. We suggest strongly encouraging state boating law administrators to encourage those recording accident data to make sure they record the engine manufacturer data for propeller fatalities and possible propeller fatalities. We also suggest they capture a digital image of the drive on the boat when possible to backup that identification.

We also encourage providing a means by which those reporting accidents can accurately distinguish between OMC and Bombardier drives (paint color, markings, decals, significant features, build dates, etc). This would be useful in distinguishing boats powered by legacy OMC drives, vs. boats powered by more modern (2001 or later build date) Bombardier drives.

Armed with that information, the annual number of recreational boat propeller fatalities tied to each marine drive manufacture can be determined, as well as annual trends by manufacturer.

Below we present a Propeller Fatality Cap and Trade with a Tax on Over Cap Fatalities. This approach is a hybrid of two methods we presented earlier Propeller Fatality Tax, and a Propeller Fatality Cap and Trade.

Please note, the numbers and dollar amounts below in bold are just placeholders to begin a conversation. Read More→

We discuss Propeller Fatality Cap and Trade With a Tax on Over Cap Fatalities as a means to reduce recreational boat propeller fatalities in another post. While developing those concepts, we explored some other venues as well. The less desired approaches are provided here as reference material.

In general, they present an approaches similar to cap and trading of emissions.

Two such approaches are presented here

  • Propeller Fatality Tax
  • Propeller Fatality Cap and Trade

The numbers presented in bold are merely placeholders to generate discussion. Read More→

We are working on a propeller safety proposal that requires an estimate of the percentage of U.S. outboard and sterndrive boats powered by the various outboard and sterndrive manufacturers that are in the field, called the boat park by other nations. These numbers may be considerably different than current market shares due to some manufacturers having large populations of legacy drives in the field. In addition, some manufacturers no longer in operation (like OMC) still have a large population of drives in the field.

We notice the U.S. Coast Guard has supplied a data field for engine manufacturer beginning in their 2009 Boating Accident Report Database (BARD). While this information is only being captured for a fraction of the accident reports, we still submit it as one means of estimating the market share of boats powered by manufacturers of outboards and stern drives in the field.

We created a spreadsheet and examined 2009 and 2010 BARD. We established a subset of data by year that only included outboards and sterndrives, then we counted those belonging to each manufacturer. Several small manufacturers only had one drive. We eliminated manufacturers that did not have at least two drives listed in at least one of the two years we analyzed. Then we grouped the results by manufacturer (like OMC= OMC + Evinrude + Johnson). Read More→

We have seen some great student propeller safety research projects through the years. In an effort to encourage more college students to consider propeller safety projects for Senior Design Projects, Project Classes, Senior Thesis, Capstone Projects, and Thesis, we created a post to attract them, Research Projects for Senior Design Classes, Masters Thesis Projects, & Other Researchers. We followed up that post with a series of posts providing additional information on several of the suggested recreational boat propeller safety projects.

Vlist Propeller Safety Project

Vlist Propeller Safety Project. Eindhoven University of Technology. Netherlands. 2005.

The next step to landing more student researchers is to make the projects more attractive by providing funding, hardware, test equipment, access to facilities and engineers, mentors, internships, software, access to boats, test equipment, fast computers, travel / trips, company tours, branded apparel (caps, shirts), a ride in a fast boat, and related incentives.

If your are interested in sponsoring any of the projects listed in any way, please contact us (see contact tab in the menu). If you are in the industry and have another related project you would like to list or sponsor, please contact us as well.

Please step up and help the bright minds of tomorrow take on propeller safety issues today! Read More→

0 Categories : Research Projects