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Big Ship Effects

RS
Rudy Sechez
Wed, Aug 12, 2020 10:56 PM

I've read about the effects of big ships in narrow channels and we recently
finally saw if first hand. We were northbound in the Chesapeake,
approaching Sassafras River, heading to the C&D canal. A large tug, pulling
an even larger fuel barge pasted us, with a large bulk carrier immediately
following. As the ship approached the tow, he slowed to bare steerage, as
did the tow. The tow also moved as far to the edge of the channel as he
dared. As the ship started to pass the tow, the fuel barge swung away, and
we could see that the tug was working hard to keep in from swinging too
far. Then as the ship gained on the tow, the fuel barge swung in towards
the ship, with the tug again pulling hard to keep the barge from swinging
too far. The interesting thing was that the ship had no effect on our boat
even though we were about as far on the edge of the channel as was the tow.

*Rudy & Jill Sechez *
*BRINEY BUG-a 34' Sail-Assisted Trawler  *
*850-832-7748 *
Baltimore MD Chesapeake

I've read about the effects of big ships in narrow channels and we recently finally saw if first hand. We were northbound in the Chesapeake, approaching Sassafras River, heading to the C&D canal. A large tug, pulling an even larger fuel barge pasted us, with a large bulk carrier immediately following. As the ship approached the tow, he slowed to bare steerage, as did the tow. The tow also moved as far to the edge of the channel as he dared. As the ship started to pass the tow, the fuel barge swung away, and we could see that the tug was working hard to keep in from swinging too far. Then as the ship gained on the tow, the fuel barge swung in towards the ship, with the tug again pulling hard to keep the barge from swinging too far. The interesting thing was that the ship had no effect on our boat even though we were about as far on the edge of the channel as was the tow. *Rudy & Jill Sechez * *BRINEY BUG-a 34' Sail-Assisted Trawler * *850-832-7748 * *Baltimore MD Chesapeake*
L
LAL
Thu, Aug 13, 2020 7:17 AM

Rudy, way back when, we were traveling UP the Istanbul Straits south of the Sea of Marmara.

The current down is typically 4-4.5 knots, up to 8+ if there was a heavy rain in the Black Sea and /or Sea of Marmara, and never less than 3.

We tened to be on the edge of good water 10-11 meters deep, far outside the navigation lane, trying to find water who speed was below 4 knots.

Leeze typically travels at 6 knots.

Even though I was on channel 16, monitoring channel 72 ( Straits Control Comms Channel) I failed to recognize that the channel was closed due to a LNG carrier coming down.

We were visited by sea police who said we could continue just “be careful.”

By my calculations, the  LNG was at 16 knots (running at its summer water line, so she was full) with a 4 knot current assist surrounded by some of the biggest assist vessels I have ever seen.

There were two in front, two down each side, two astern, with a Coast Guard frigate leading the whole pack and one following the whole pack.

As the pack approached, I noticed the bow wave and decided to turn into the wave.

That saved our bacon.

As the bow wave passed, what had been 10-11 meters under the keel varied from less than 2 to more than 20 with a period that would have otherwise not allowed for any defensive actions.

We did not touch, (I think) but I was quite rattled.

Big ship learning experience : 1; underwear needing a wash: 1.

Lee

Levent Marina, Izmir Turkey

On Aug 13, 2020, at 01:56, Rudy Sechez wrote:

I've read about the effects of big ships in narrow channels and we recently
finally saw if first hand……

Rudy, way back when, we were traveling UP the Istanbul Straits south of the Sea of Marmara. The current down is typically 4-4.5 knots, up to 8+ if there was a heavy rain in the Black Sea and /or Sea of Marmara, and never less than 3. We tened to be on the edge of good water 10-11 meters deep, far outside the navigation lane, trying to find water who speed was below 4 knots. Leeze typically travels at 6 knots. Even though I was on channel 16, monitoring channel 72 ( Straits Control Comms Channel) I failed to recognize that the channel was closed due to a LNG carrier coming down. We were visited by sea police who said we could continue just “be careful.” By my calculations, the LNG was at 16 knots (running at its summer water line, so she was full) with a 4 knot current assist surrounded by some of the biggest assist vessels I have ever seen. There were two in front, two down each side, two astern, with a Coast Guard frigate leading the whole pack and one following the whole pack. As the pack approached, I noticed the bow wave and decided to turn into the wave. That saved our bacon. As the bow wave passed, what had been 10-11 meters under the keel varied from less than 2 to more than 20 with a period that would have otherwise not allowed for any defensive actions. We did not touch, (I think) but I was quite rattled. Big ship learning experience : 1; underwear needing a wash: 1. Lee Levent Marina, Izmir Turkey On Aug 13, 2020, at 01:56, Rudy Sechez wrote: I've read about the effects of big ships in narrow channels and we recently finally saw if first hand……
AG
Al Golden
Sat, Aug 15, 2020 4:43 PM

Corinth Canal in Greece is the ultimate. It is one-way all of the time, and
vessels wanting to proceed need to anchor at one end and wait for their
turn. Large ships routinely use the canal and have tires hanging from both
sides to fend off. The wave created exits at the end and can create a
problem for yachts anchored and waiting for their turn.

Al Golden
Independent Agent
International Marine Insurance Services
Gowrie Group | Division of Risk Strategies
522 Chesapeake Avenue, Annapolis, MD 21403
al.imis@atlanticbb.net
p: 410.364.7701 | c: 410.827.3757 | f: 410.827.3758
Gowrie Customer Service & Claims: 410.364.7710 | 800.262.8911
www.gowrie.com

-----Original Message-----
From: Trawlers-and-Trawlering trawlers-bounces@lists.trawlering.com On
Behalf Of Rudy Sechez via Trawlers-and-Trawlering
Sent: Wednesday, August 12, 2020 18:57
To: Trawlers and Trawlering trawlers@lists.trawlering.com
Subject: T&T: Big Ship Effects

I've read about the effects of big ships in narrow channels and we recently
finally saw if first hand. We were northbound in the Chesapeake, approaching
Sassafras River, heading to the C&D canal. A large tug, pulling an even
larger fuel barge pasted us, with a large bulk carrier immediately
following. As the ship approached the tow, he slowed to bare steerage, as
did the tow. The tow also moved as far to the edge of the channel as he
dared. As the ship started to pass the tow, the fuel barge swung away, and
we could see that the tug was working hard to keep in from swinging too far.
Then as the ship gained on the tow, the fuel barge swung in towards the
ship, with the tug again pulling hard to keep the barge from swinging too
far. The interesting thing was that the ship had no effect on our boat even
though we were about as far on the edge of the channel as was the tow.

*Rudy & Jill Sechez *
*BRINEY BUG-a 34' Sail-Assisted Trawler  *
*850-832-7748 *
Baltimore MD Chesapeake


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Corinth Canal in Greece is the ultimate. It is one-way all of the time, and vessels wanting to proceed need to anchor at one end and wait for their turn. Large ships routinely use the canal and have tires hanging from both sides to fend off. The wave created exits at the end and can create a problem for yachts anchored and waiting for their turn. Al Golden Independent Agent International Marine Insurance Services Gowrie Group | Division of Risk Strategies 522 Chesapeake Avenue, Annapolis, MD 21403 al.imis@atlanticbb.net p: 410.364.7701 | c: 410.827.3757 | f: 410.827.3758 Gowrie Customer Service & Claims: 410.364.7710 | 800.262.8911 www.gowrie.com -----Original Message----- From: Trawlers-and-Trawlering <trawlers-bounces@lists.trawlering.com> On Behalf Of Rudy Sechez via Trawlers-and-Trawlering Sent: Wednesday, August 12, 2020 18:57 To: Trawlers and Trawlering <trawlers@lists.trawlering.com> Subject: T&T: Big Ship Effects I've read about the effects of big ships in narrow channels and we recently finally saw if first hand. We were northbound in the Chesapeake, approaching Sassafras River, heading to the C&D canal. A large tug, pulling an even larger fuel barge pasted us, with a large bulk carrier immediately following. As the ship approached the tow, he slowed to bare steerage, as did the tow. The tow also moved as far to the edge of the channel as he dared. As the ship started to pass the tow, the fuel barge swung away, and we could see that the tug was working hard to keep in from swinging too far. Then as the ship gained on the tow, the fuel barge swung in towards the ship, with the tug again pulling hard to keep the barge from swinging too far. The interesting thing was that the ship had no effect on our boat even though we were about as far on the edge of the channel as was the tow. *Rudy & Jill Sechez * *BRINEY BUG-a 34' Sail-Assisted Trawler * *850-832-7748 * *Baltimore MD Chesapeake* _______________________________________________ http://lists.trawlering.com/mailman/listinfo/trawlers_lists.trawlering.com To unsubscribe or modify your subscription options (get password, change email address, etc) go to: http://lists.trawlering.com/mailman/listinfo/trawlers_lists.trawlering.com Trawlers & Trawlering and T&T are trademarks of Water World Productions. Unauthorized use is prohibited.