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| Propeller Guards |
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Boating Safety (To Prop Guards Page) Protecting humans from a rotating propeller on pleasure boats is difficult. Whatever apparatus is used will affect the performance of the boat, especially speed, to a certain degree. Most responsible boaters will accept this small reduction in speed for the benefit of the safety factor. A reduction in top speed of approximately 5% was recorded in test-runs using a 16' runabout with a 75HP outboard motor. The potential hazard can be broken down into several categories: 1.
An outboard motor running at 3200 RPM equipped with a 3-blade
propeller, the propeller will strike an object 160 times per
second. 3. A boat moving astern at slow speed can cause serious injuries to the human by the rotating propellers full rear surface. |
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4. A human striking a moving propeller in a 90 degree angle in relation to the centerline of a boat or being struck by the skeg on the outboard motor from below.
5. The rear 180 degree propeller angle clearly presents the most dangerous area of the boat propeller to humans.This is not only a major concern to pleasure boaters, but also ski boats, dive boats, rescue boats, boats with children on board and rental boats plus many other boating activities.
In summary, the unprotected propeller of an outboard or inboard /outboard motor is a major hazard to humans.
Many serious injuries and fatalities attest to this fact every boating season.
The Series 9000 Propeller Safety Guards have been designed in an effort to reduce injuries and to provide a reasonable degree of protection.
Putting A Stop To Threat Of A Prop
Reprinted with permission from " The Sunday Okanagan "
Kelowna BC - Dec. 5/99Nursing students at OUC promote propeller guard as way of preventing boating accidents.
Kelowna - Two nursing students of Okanagan University College haven't graduated yet, but they're already trying to save lives.
The fourth-year students, Erin Fulk and Cathy Grantham, have made it a course project to research and promote boating safety, particularly a propeller guard".
"We're suggesting that this propeller guard is an option that can save lives", said Fulk. "We've been talking to marina operators just to let them know it's out there. Everyone should have this on their boat".
Gerard Raps of Surrey's Adventure Marine Mfg. Inc., which makes the propeller safety guards, said they come in 9 sizes. "If someone is mechanically inclined, as many boaters are, they could install it themselves", he said. "It's really quite easy".
He said, the guard does decrease top speed by three or four per cent. "But it really doesn't matter much if your going 43 or 45 miles per hour," he said. "The safety is worth it".
He said it's an ideal precaution for marinas that rent boats use the propeller guard because their customers are often inexperienced.
Russian hockey player Dimitri Tertyshny, a promising 21-year-old member of the Philadelphia Flyers, was killed by a propeller last July when he fell off a rental boat in Okanagan Lake.