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> This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --MS_Mac_OE_3078394021_4280886_MIME_Part Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit My levity about Thom's post was directed at those who tend to over estimate the current "ripping" on a particular day. We have heard it before "there I was with a white-knuckled grip on the anchor line, flapping like a flag in the breeze. The current was at least 5 knots". When we know that if you are able to hold on maybe 1.5 at the most. If you are free-floating you could be in a 20 knot current and, barring turbulence, not even notice save for visible fixed objects whipping by. You could also survive a high current situation should you be able to hunker down behind some object, say a wreck. But a 2 or even 3 knot current can make is real hard to drop down and hit a wreck using "Florida dive-bomb" mode. And if you miss the wreck, forget it, dive over. And holding onto a line in a current like this? No way on earth. So when Thom said he was diving in a six knot current I found it hard to picture the scenario where this would be possible. How would you hit the wreck if you are dive-bombing it? You would have to have exceptional judgement of when to jump off the boat. Or if you were swimming down to it off the shore you would have to be behind a ledge or something to break the current. There is no way that you can hold onto a line in a 6 knot current, no way on earth. Dragged perhaps, naked as a jaybird but that's about it. Jim ------------------------------------------------------------------- Learn About Trimix at http://www.cisatlantic.com/trimix/ From: "Tony Thomas" <tonythomas@ny*.rr*.co*> Reply-To: "Tony Thomas" <tonythomas@ny*.rr*.co*> Date: Thu, 19 Jul 2001 11:58:48 -0400 To: "Thom Hadfield" <thom.hadfield@ho*.co*>, <techdiver@aquanaut.com>, "Jim Cobb" <cobber@ci*.co*> Subject: Re: The Tremble Jim, I dove the Tremble with some folks from Great Lakes Dive Center about a month ago. The current was _ripping_ and I had no trouble believing it was 5-6 knots . The wreck is about 60' at it's deepest, I think, and it creates a wake on the surface of the river.. Nice vis, clean water and pretty surroundings, just gotta be in shape for the exit (climbing 10' - 12' up a steel rung ladder in the sea wall, then climbing over a 3'-4' guard rail). Hope I get to dive it again. Tony ----- Original Message ----- From: Thom Hadfield <mailto:thom.hadfield@ho*.co*> To: techdiver@aquanaut.com Sent: Thursday, July 19, 2001 7:48 AM http://members.aol...com/seasnoop/jan98dsom.htm Incase you don't believe me Jim. This site on diving the tremble should confirm that here in michigan we dive in fast current all the time. It is a very popular dive spot but it is not for the faint at heart. Thom --MS_Mac_OE_3078394021_4280886_MIME_Part Content-type: text/html; charset="US-ASCII" Content-transfer-encoding: quoted-printable <HTML> <HEAD> <TITLE>On high current diving</TITLE> </HEAD> <BODY> My levity about Thom's post was directed at those who tend to over estimate= the current "ripping" on a particular day. We have heard it befor= e "there I was with a white-knuckled grip on the anchor line, flapping = like a flag in the breeze. The current was at least 5 knots". When we k= now that if you are able to hold on maybe 1.5 at the most.<BR> <BR> If you are free-floating you could be in a 20 knot current and, barring tur= bulence, not even notice save for visible fixed objects whipping by. You cou= ld also survive a high current situation should you be able to hunker down b= ehind some object, say a wreck.<BR> <BR> But a 2 or even 3 knot current can make is real hard to drop down and hit a= wreck using "Florida dive-bomb" mode. And if you miss the wreck, = forget it, dive over. And holding onto a line in a current like this? No way= on earth. So when Thom said he was diving in a six knot current I found it = hard to picture the scenario where this would be possible. How would you hit= the wreck if you are dive-bombing it? You would have to have exceptional ju= dgement of when to jump off the boat. Or if you were swimming down to it off= the shore you would have to be behind a ledge or something to break the cur= rent. There is no way that you can hold onto a line in a 6 knot current, no = way on earth. Dragged perhaps, naked as a jaybird but that's about it.<BR> <BR> Jim<BR> -------------------------------------------------------------------<BR> Learn About Trimix at http://www.cisatlantic.com/trimix/<BR> <BLOCKQUOTE><BR> <B>From: </B>"Tony Thomas" <tonythomas@ny*.rr*.co*><BR> <B>Reply-To: </B>"Tony Thomas" <tonythomas@ny*.rr*.co*><BR> <B>Date: </B>Thu, 19 Jul 2001 11:58:48 -0400<BR> <B>To: </B>"Thom Hadfield" <thom.hadfield@ho*.co*>, <te= chdiver@aq*.co*>, "Jim Cobb" <cobber@ci*.co*>= ;<BR> <B>Subject: </B>Re: The Tremble<BR> <BR> </BLOCKQUOTE><BR> <BLOCKQUOTE><FONT SIZE=3D"2"><FONT FACE=3D"Arial">Jim, I dove the Tremble with = some folks from Great Lakes Dive Center about a month ago. The current= was _ripping_ and I had no trouble believing it was 5-6 knots . The w= reck is about 60' at it's deepest, I think, and it creates a wake on the sur= face of the river.. Nice vis, clean water and pretty surrounding= s, just gotta be in shape for the exit (climbing 10' - 12' up a steel rung l= adder in the sea wall, then climbing over a 3'-4' guard rail). Hope I = get to dive it again. <BR> </FONT></FONT> <BR> <FONT SIZE=3D"2"><FONT FACE=3D"Arial">Tony <BR> </FONT></FONT><BLOCKQUOTE>----- Original Message ----- <BR> <B>From:</B> Thom Hadfield <mailto:thom.hadfield@ho*.co*> <BR> <B>To:</B> techdiver@aquanaut.com <BR> <B>Sent:</B> Thursday, July 19, 2001 7:48 AM<BR> <BR> <FONT SIZE=3D"2"><FONT FACE=3D"Arial">http://members.aol...com/seasnoop/jan98ds= om.htm<BR> <BR> Incase you don't believe me Jim. This site on diving the tremble should con= firm that here in michigan we dive in fast current all the time. It is a ver= y popular dive spot but it is not for the faint at heart. <BR> <BR> Thom<BR> </FONT></FONT></BLOCKQUOTE><BR> </BLOCKQUOTE><BR> </BODY> </HTML> --MS_Mac_OE_3078394021_4280886_MIME_Part-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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