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They are hollow, there are four chambers in each pontoon. The metal in the pontoons is 1/8" thick.

By digitally enhancing the picture, there is a zit on his nose. Just another why masks are necessary.

Quote:

Originally Posted by tw (Post 1054257)

By digitally enhancing the picture, there is a zit on his nose. Just another why masks are necessary.

Huh?!

Sunday afternoon on the river. where I had an expensive lesson on Wing Dams in the back channels. Stay tuned for further updates.

Oh dear, you can get in plenty of trouble at less than 15 mph. :facepalm:

The majority of the damage was done at less than 5 mph. We made it home Okay but the prop is toast, took about a 1/4 inch off the blades.

Could be worse, you didn't have to swim.

B.O.A.T.

Bust Out Another Thousand

What is the definition / purpose of a wing dam?

Quote:

A wing dam or wing dike is a man made barrier that, unlike a conventional dam, only extends partway into a river. These structures force water into a fast-moving center channel which reduces the rate of sediment accumulation, while slowing water flow near the riverbanks.

The Mississippi River in North America has thousands of wing dams which were originally constructed to reduce the amount of dredging required when the main navigation channel was maintained to at least 4 1⁄2 feet (1.4 m). Since that time, additional conventional dams have been built to increase the water level in the river, doubling the depth of the navigation channel to 9 feet (2.7 m). The wing dams still serve their purpose, but to a lesser extent than before.

While wing dams assist in assuring that rivers are navigable, they can also pose a threat to boaters. Many wing dams are often underwater and may be difficult to see, and can easily be struck by vessels. On the other hand, fishermen intentionally fish the quieter waters downstream of wing dams.

A boat is a hole in the water where the money goes. -Stan Rogers

What kind of "navigation channel" is four feet deep and nine feet wide?

One on the Mississippi river...:unsure:

Oh, and:

Quote:

Since that time, additional conventional dams have been built to increase the water level in the river, doubling the depth of the navigation channel to 9 feet (2.7 m).

Couldn't figure that one out. Aren't dams exactly what you don't want when you're trying to navigate? :unsure: