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PWC, Noise Problems, Save on Insurance

Saturday, Jun. 26th 2010 6:34 AM

Noise is a ubiquitous complaint among beach-goers, waterfront property owners and traditional boaters who express their dislike of the high-pitched whine of PWC. Environmental advocates who contend that PWC noise compromises the integrity of marine and coastal environments by degrading quality of life, destroying recreational experiences and threatening wildlife, also highlight noise issues.

PWC industry officials, on the other hand, emphasize that technological innovations such as baffles, insulation and resonator-equipped mufflers have significantly reduced PWC noise and that newer models are two to eight times quieter than older ones (PWIA 2000a). Their claims are backed by studies suggesting that, under analogous operating conditions, PWC are no louder than similar motorized vessels (Noise Unlimited 1995) and that PWC comply with all existing noise regulations.

One Comment on “PWC, Noise Problems, Save on Insurance”

  1. Kimberly W Says:

    Two-stroke and 4-strokes also differ in their power generation. Two-stroke engines generate power with every downward piston stroke, which requires them to combine fuel intake and exhaust into one stroke and fuel compression and ignition into the other stroke (Kuzminski and Jackivicz 1972). This combination creates power with every downward stroke but it allows significant amounts of unburned fuel to pass through the cylinder and into adjacent surface waters. Although 2-strokes frequently use deflectors to direct fuel away from the exhaust manifold, excessive throughput still occurs (Kuzminski and Jackivicz 1972). Therefore, marine manufacturers are beginning to outfit 2-stroke engines with direct fuel injection (DFI) systems such as the Ficht or Orbital.

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