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On Mon, 8 Oct 2007 19:12:07 -0400, "Eisboch"
wrote:

If he can't .... I'll take the challenge. Navigator versus Etec. .....

Oh no you don't, I want him first.

You can have what's left.

Snicker.

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On Mon, 08 Oct 2007 20:29:39 -0400, Wayne.B
wrote:

On Mon, 8 Oct 2007 19:12:07 -0400, "Eisboch"
wrote:

If he can't .... I'll take the challenge. Navigator versus Etec. .....

Oh no you don't, I want him first.

You can have what's left.

Snicker.

Please note- I didn't say in gear.

Like I said, I'm not quite that stupid. :)

Ship-MKT shipyard, we Build to your Oder!
 

On Tue, 09 Oct 2007 00:06:06 GMT, Short Wave Sportfishing
wrote:

Is it easier to manuever a boat with twin engines with two rudders?
What would be the difference if it had one rudder? Or if you have a
single engine and two rudders?

In close quarters maneuvering it's nice to have the prop wash blasting
directly against the rudder, especially important with a single engine
boat but useful even with twins. The rudder deflects the prop wash
and creates a lateral (rotational) force.

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On Mon, 8 Oct 2007 20:31:33 -0400, "JimH" ask wrote:

My guess is that you leave the rudders in straight forward neutral and only
work the engines forward/reverse to maneuver.

Let's see if I am right.

That's normally true with twin engines but not always. Some of the
exceptions:

1. Springing the stern off or on to a dock.

2. Jump starting a 180 degree, in place turn.

3. Walking the boat sideways.

4. Backing up over a distance with some way on.

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On Tue, 09 Oct 2007 00:33:12 GMT, Short Wave Sportfishing
wrote:

Please note- I didn't say in gear.

Like I said, I'm not quite that stupid. :)

You can get almost anything moving if it's not tied down or fighting
back. Down our way in FL there are quite a few 20 something skiffs
rigged out with pusher bars for moving big work barges around.

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On Mon, 08 Oct 2007 20:44:31 -0400, Wayne.B
wrote:

On Tue, 09 Oct 2007 00:06:06 GMT, Short Wave Sportfishing
wrote:

Is it easier to manuever a boat with twin engines with two rudders?
What would be the difference if it had one rudder? Or if you have a
single engine and two rudders?

In close quarters maneuvering it's nice to have the prop wash blasting
directly against the rudder, especially important with a single engine
boat but useful even with twins. The rudder deflects the prop wash
and creates a lateral (rotational) force.

So if I read that correctly, and I might not be, using a single rudder
would be similar to applying vectored thrust as you do with an
outboard, but not so with twin rudders?

Ship-MKT shipyard, we Build to your Oder!
 

On Tue, 09 Oct 2007 00:59:59 GMT, Short Wave Sportfishing
wrote:

So if I read that correctly, and I might not be, using a single rudder
would be similar to applying vectored thrust as you do with an
outboard, but not so with twin rudders?

There are some similarities but also some differences. With an
outboard or I/O the vectored thrust works in both forward and reverse.

With inboards vectored thrust is possible only in forward because the
prop wash has to react against a rudder to be effective. That can be
useful in certain situations such as the "back and fill" maneuver with
a single engined boat, or "walking the boat sideways" with twin
engines.

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"Short Wave Sportfishing" wrote in message
...

On Mon, 8 Oct 2007 19:49:19 -0400, "Eisboch"
wrote:



The Navigator has two rudders. (Last time I checked)

This may sound like a really stupid question, but I honestly don't
know the answer.

Is it easier to manuever a boat with twin engines with two rudders?
What would be the difference if it had one rudder? Or if you have a
single engine and two rudders?

I am not sure I understand your question, but a single engined boat like the
GB has one rudder, a twin engined boat like the Navigator has two rudders.

On a power boat, the rudder is placed directly behind the prop(s) and it's
purpose is to direct the prop wash to move the stern and provide steerage.
It's not the same as a sailboat that would have a much bigger rudder and
depends on the movement of the boat to steer, rather than the prop wash.

Eisboch

But you already knew that.

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On Mon, 08 Oct 2007 20:58:39 -0400, Wayne.B
wrote:

On Tue, 09 Oct 2007 00:33:12 GMT, Short Wave Sportfishing
wrote:

Please note- I didn't say in gear.

Like I said, I'm not quite that stupid. :)

You can get almost anything moving if it's not tied down or fighting
back. Down our way in FL there are quite a few 20 something skiffs
rigged out with pusher bars for moving big work barges around.

Interesting.

Ship-MKT shipyard, we Build to your Oder!
 

On Mon, 08 Oct 2007 21:13:44 -0400, Wayne.B
wrote:

On Tue, 09 Oct 2007 00:59:59 GMT, Short Wave Sportfishing
wrote:

So if I read that correctly, and I might not be, using a single rudder
would be similar to applying vectored thrust as you do with an
outboard, but not so with twin rudders?

There are some similarities but also some differences. With an
outboard or I/O the vectored thrust works in both forward and reverse.

With inboards vectored thrust is possible only in forward because the
prop wash has to react against a rudder to be effective. That can be
useful in certain situations such as the "back and fill" maneuver with
a single engined boat, or "walking the boat sideways" with twin
engines.

I think I'm getting a handle on this.