PropellerSafety.com

Archive for boat – Page 4

Kirsty MacColl Death by Boat Propeller in Mexico

Kirsty MacColl, A High Profile Boat Propeller Accident From 2000. Kirsty MacColl, well known female British recording artist, was scuba diving in Mexico off Cozumel Island with a friend (James Knight) and a dive master (Ivan Diaz) on the afternoon of 18 December 2000. As they surfaced from a dive she saw a large powerboat […]

Michael Hinton v. Outboard Marine Corporation (OMC) propeller accident trial

Michael Hinton was trying to retrieve his son’s hat which had blown into the water on September 10, 2000. He was on the swim deck, crouched, hanging onto the swim ladder and getting ready to reach for the hat. The swim ladder was anchored to the transom by a nylon strap through a grommet. The […]

Developing a Consumer Guide for the Selection of Propeller Guards and Other Propeller Safety Devices

This propeller guard selection guide is NOT ready for use. As brightly emblazoned on our documents, they are rough drafts. We posted them to generate a discussion that could improve them as well as provide some ideas to those working on the U.S. Coast Guard’s recently announced efforts to produce a consumer guide to propeller […]

History of Lanyard Kill Switches for Recreational Boats: Inventions, Regulations, Accidents, and Trials

Although the U.S. Coast Guard is still considering regulations that would require boat builders to install kill switches (emergency engine cut-off switches) in all new recreational boats below a certain length and separately considering making their use mandatory, they have been on the market for over 30 years. The basic problem of unmanned boats going […]

Propeller Guard Drag Research Projects – Senior Design Projects

Boat propeller guards create drag which effects the performance of the boat, especially the top speed attainable at wide open throttle and time to plane. Propeller guard designers try to minimize drag by increasing the size of the mesh (make the open holes larger) and by decreasing the size of the wires / rods used […]

USCG Kill Switch (Engine Cut-Off Switch) Proposed Rule USCG-2009-0206 Our Public Comments

One of our earlier posts noted the United States Coast Guard (USCG) is seeking public comments on a proposed rule concerning Boat Kill Switches, also called Engine Cut-Off Switches. Details of their proposal and request for comment on our Kill Switch/Engine Cut-Off Switch Proposed Rulemaking Comments Sought by USCG post. The two most basic questions […]

RFID Boat Kill Switches (Engine Cut-Off Switches) – Five PGIC Invention Disclosures Posted August 29, 2011

Today, August 29, 2011, we, the Propeller Guard Information Center, posted five RFID (Radio Frequency Identification) invention disclosures. While they have other implications as well, they were primarily inspired by problems surrounding boat engine kill switches (emergency engine cut-off switches). We (Polson Enterprises and the Propeller Guard Information Center) initially retained all rights to these […]

RFID Clothing Used to Detect Human Presence in Boat Kill Switch Applications invention

Our RFID Clothing Used to Detect Human Presence in Boat Kill Switch Applications invention disclosure below was posted on 29 August 2011. It is one of five related Radio Frequency Identification (RFID) invention disclosures we posted today. We will make no changes to the invention disclosure that begins with text below the horizontal line following […]

Non-Unique RFID Fob / RF Reflector Used to Detect Human Presence and/or Human Proximity and/or Human Location invention

Our non-unique RFID Fob / RF Reflector Used to Detect Human Presence and/or Human Proximity and/or Human Location invention disclosure below was posted on 29 August 2011. It is one of five related RFID invention disclosures we posted today. We will make no changes to the invention disclosure that begins with text below the horizontal […]