Mailing List Archive

Mailing List: techdiver

Banner Advert

Message Display

From: "Dan Volker" <dlv@ga*.ne*>
To: <techdiver@aquanaut.com>, "J.T. Barker" <captjt@mi*.co*>
Cc: <CAPTZEROOO@ao*.co*>
Subject: Re: dive contest
Date: Thu, 12 Mar 1998 16:28:39 -0500


>Lets see,If I wear a dry suit with a tank top and shorts underneath,I'll be
>fairly warm.Yeah,this cold water in Fl. can be a real problem.I guess those
>guys who dive the reefs and wrecks there must be real supermen.(I did dive
>there
>in Boynton in Dec.97.and Miami,Keylargo 94,Key West,Isamorama,Keylargo 95
>and I've done all your drift diving,currents,rough seas(what a joke)and
>this was
>FAR from challenging).

JT,.......................

Miami, Key Largo and south have NO currents, as far as South Florida diving
goes. This includes any of the Key West deep wrecks, which have essentially
"No current"  by Jupiter/Juno  standards.
Boynton has some current, but usually is mild compared to Central Palm
Beach, and very low current compared to Juno and Jupiter diving.
And unless you did dives to 200 feet or deeper, you did not face any of the
real conditions we have been talking about. We are NOT discussing baby
recreational dives. You can't even use the wreck diving  techniques here
that Billy Deans uses----so don't be so sure you are talking about the same
things we are ( i.e., on deep wrecks off of Juno, you CAN  NOT anchor a boat
or float line to a wreck, and then pull your self down a line. NO WAY would
you want to try---it would be begging for DCS later, it would be a huge
waste of gas, and you would need phenomenal strength to succeed. And you
would NEVER come up a line anchored to the bottom, to do deco on. NEVER! It
would be just plain stupid to plan on this when the current will usually run
between 3.5 and 4.5 mph, and this is actual GPS speed, no tired diver
exaggeration.).

The only Boynton dive with appreciable current is the wreck of the Skycliff.
On a normal day on the Skycliff, if you poke your head up into the current,
over the protection of the side of the ship or a cabin, your mask can be
immediately ripped off,  if you have a normal purge on your second stage reg
in your mouth, it will be depressed by the current flow, and you'll have to
cover it with your hand if for some reason you need to keep your head
exposed.  This wreck does not seem to have any Newfoundland current
intrusion, so the current stays constant all the way to the bottom 1 to 2
feet, where skin friction drag slows the speed of the current. And this "is"
a mild current wreck, by north Palm Beach standards.
The 250 foot deep occulina ledge off Juno,  that WKPP members have been
searching for the 2 remaining deceased tech divers on, will have 3.5 to 4.5
mph currents going North on the top 200 feet of water, with the Gulfstream,
and the bottom 50 will be either still or slight south current, and  a
frigid 42 degrees up to a warm of 62 this time of year---caused by intrusion
from the Newfoundland current.  The shear you run into once you penetrate
the bottom water, causes stresses you NE divers have not yet encountered,
and so far, don't seem to comprehend. We don't consider this temperature
range  (42 to 62 degrees) any big deal, as it is easy to dress for it and
hardly something worthy of addressing as a skill, the way some of the NE
guys are talking.  However it can NOT be safely dived with a wet suit in
Winter, as the 3 missing WPB divers are testament to.

As to ocean conditions, we go out in anything the boats here can handle,
which typically limits us to 8 to 12 foot seas before the boats choose to
cancel out of a planned dive---frequently the dives themselves are great
with these conditions ( large east wind blows the Gulf stream in really
close, often pushing visibility to over 150 feet when this happens), but the
inlets get dangerous where the waves pile up much higher, and a few boats
have turned over here in the last 3 years---making many of the captains more
cautious about running in 12 to 15 or bigger.....Most of the good dive sites
will always be over an hour run, sometimes over 2 hours to get back
 against current and waves).  So unless you guys are diving boats much more
seaworthy than the 38 foot  Deltas that are popular for dive charters here
in WPB, this nonsense about your divers being  a "tougher" or "hardier"
breed, will have little to do with diving conditions, and a lot more to do
with self aggrandizement.


Now, I'm not saying you guys have poor diving---I really want to experience
some of your better dive sites. I do believe they will be very good.   I'm
just disagreeing with the REASONS several NE divers have used to have us
believe the NE dives are so very challenging.

*Note---I use the 3.5 to 4.5 mph description for  surface current, because
when we take the boat out of gear to drop the tech teams and scooters  in,
the GPS handheld I use shows this to be our speed over the bottom---this is
what I use to calculate how far upcurrent we need to drop, in order to hit a
spot we want to reach on the bottom.  I see no reason to convert the GPS
reading to knots. Certainly you can make this calculation yourself, if
considering it his way annoys you:-)


Regards,
Dan Volker



>Dan you still miss my point or your dancing around it.I've dove in your
back
>yard you can't say the same.I have no doubt that you can master our
area,but
>to say its a cake walk you have to dive it first.And as for the drift
>dive,if I were a cruel person I would address resent mishaps.If you
>planning to come up here this summer when and where if its in this area I
>can recomend some nice dives or I can plan some dives that should be up to
>your skill.This is not a challenge,but an offer for great diving.You can
>then say our diving is easy with experience not ego.
>Ho yeah when talking about currents or boat speed and things the correct
>term is
>knots not mph.And I have incountered your Newfoundland current off of South
>Carolina from a tried in boat(I would have perfered not too but once your
into
>a dive and the current comes you deal with it.)
>Capt.J.T.
>
>
>
>


--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]