Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 28-01-2009, 18:15   #31
Registered User

Join Date: Feb 2008
Location: Oz
Boat: Jarcat 5, 5m, Mandy
Posts: 419
Quote:
Originally Posted by anotherT34C View Post
Not such a good idea. As others have written, you need a potential difference to make a current. A fiberglass hull won't do as a ground. How about a bigger lock? For the paranoid, a well locked up sailboat can make a pretty sturdy fortress.
The pulse is pretty short and your own capacitance allows a reasonable quantity of electrons to pass. The shock is certainly there as rubberised boots are not sufficient to stop some shock. It is certainly stronger if you have a good return circuit. Try holding onto a high tension lead even if standing on an inch of dry rubber.
__________________

__________________
Robertcateran is offline   Reply With Quote
Old 28-01-2009, 18:19   #32
Registered User
 
quidam's Avatar

Join Date: Oct 2008
Location: Cincinnati, OH (for now)
Boat: custom built 47' wooden trawler yacht
Posts: 71
Send a message via Skype™ to quidam
Quote:
Originally Posted by Stillraining View Post
I'v got 2 miles of electric fence around my place..I dont know what kind of fence chargers or what kind of laws of physic you boys run down there but if you aint grounded here you wont get shocked..My fence is almost worthless by august due to dry ground resulting in poor grounding.
Yes, you must be grounded. Electricity 101.

I like the carpet tack method better.
__________________

__________________
Quidam (pronounced "key-DAHM"; IPA: /kiːˈdɑːm/) means "a certain one" -or- "a certain thing", "an anonymous passerby" in Classical Latin
*****
One must be constantly on guard against advocates of the "Be reasonable and do it the hard and expensive way" school of thought.

That type of elitist thinking has ballooned the cost of boats, and cruising , far beyond what it need be, and beyond the reach of too many low income cruisers, for no benefit. --Brent Swain
quidam is offline   Reply With Quote
Old 28-01-2009, 21:21   #33
Registered User
 
Captain Jaz's Avatar

Join Date: Jan 2009
Location: The Ocean
Boat: Bruce Robert 360 - 36' Steel Junk-Rigged Schooner
Posts: 355
Images: 17
pirate Crossbow...

Quote:
Originally Posted by BadFish View Post
IMHO...

This is a stupid idea. I've had some bad ones in my day, but never purposely surrounded myself with an electrically charged object.

If you're that concerned with security, use a practical idea, like a heavy duty lock. If you need personal safety while aboard, get a dog and/or a gun.

Cheers

Bill
As a non-US citizen I can't get a gun when I'm there (though we did .22 rifle shooting at school in South Africa so I can shoot, but I won't be in SA any time soon to get a lisence), and getting a license for a gun in the uk is nigh on impossible unless u belong to a country estate rifle club... what are the law's on owning a crossbow (which I am rather proficient with, and the longbow) in the US and other countries? Would I have problems in customs at other ports? I do like the idea of one, as any pirates using sail would be a fine target for a flaming bolt...
__________________
'Anyhow, a philosophical turn of thought now was not amiss, else one's patience would have given out almost at the harbour entrance.' ~ Joshua Slocum
Captain Jaz is offline   Reply With Quote
Old 28-01-2009, 22:30   #34
Registered User

Join Date: May 2008
Location: British Columbia, Mexico
Boat: S&S Hughes 38
Posts: 837
Images: 23
Pretty sure spearguns and pellet guns are regarded as weapons,most likely crossbows also.
__________________
highseas is offline   Reply With Quote
Old 28-01-2009, 22:36   #35
Registered User
 
Captain Jaz's Avatar

Join Date: Jan 2009
Location: The Ocean
Boat: Bruce Robert 360 - 36' Steel Junk-Rigged Schooner
Posts: 355
Images: 17
Here in the UK they are classed as 'offensive weapons' only if they are used as one. Just possession of one doesn't require a license, though they have recently changed the law for high powered air-rifles to be over 18 only...
__________________
'Anyhow, a philosophical turn of thought now was not amiss, else one's patience would have given out almost at the harbour entrance.' ~ Joshua Slocum
Captain Jaz is offline   Reply With Quote
Old 28-01-2009, 22:37   #36
Registered User
 
Captain Jaz's Avatar

Join Date: Jan 2009
Location: The Ocean
Boat: Bruce Robert 360 - 36' Steel Junk-Rigged Schooner
Posts: 355
Images: 17
But then a stick is also an offensive weapon according to the law here if its used as one...
__________________
'Anyhow, a philosophical turn of thought now was not amiss, else one's patience would have given out almost at the harbour entrance.' ~ Joshua Slocum
Captain Jaz is offline   Reply With Quote
Old 28-01-2009, 23:39   #37
Registered User
 
Stillraining's Avatar

Join Date: Oct 2008
Location: Puget Sound
Boat: Irwin 41 CC Ketch
Posts: 2,876
Gordy posted a long list..most island destinations seemed to ban spear guns. cross bows, bows etc.
__________________
"Go simple, go large!".

Relationships are everything to me...everything else in life is just a tool to enhance them.
Stillraining is offline   Reply With Quote
Old 29-01-2009, 02:39   #38
Long Range Cruiser
 
MarkJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2007
Location: Australian living on "Sea Life" currently in England.
Boat: Beneteau 393 "Sea Life"
Posts: 12,828
Images: 25
Quote:
Originally Posted by quidam View Post
Yes, you must be grounded. Electricity 101.

I like the carpet tack method better.
YOU DON'T NEED TO BE GROUNDED!!!!!!!!!!!!

I wasnt grounded when I was zapped! I had boots on. The whole damn cattle fencey business ain't gunna work if all cattle nned sloshy feet and an electric wire into the ground. think about it - there must be a way they are working.

__________________
Notes on a Circumnavigation.
OurLifeAtSea.com

Somalia Pirates and our Convoy
MarkJ is offline   Reply With Quote
Old 29-01-2009, 02:52   #39
Senior Cruiser

Cruisers Forum Supporter

Join Date: Nov 2005
Location: Out there doin' it
Boat: 47' Olympic Adventure
Posts: 2,634
Here's the link to the commercial version: http://www.secure-marine.com/yacht/index.shtml
__________________
Lodesman is offline   Reply With Quote
Old 29-01-2009, 04:22   #40
Registered User
 
bmartinsen's Avatar

Join Date: Dec 2007
Location: Grand Cayman
Boat: Lavranos 39 S/v Continental Drift
Posts: 88
Thanks for all the replies. What I've learned is that not one person responding has "actually tried this"! I know the techno issues to make it work and I'm not looking for a gun/weapon discussion or alternitives. Just real life facts, did it work, cause corrosion, blow up radios, etc. Too many unanswered questions for me to consider trying it.
Cheers
__________________
bmartinsen is offline   Reply With Quote
Old 29-01-2009, 07:02   #41
Moderator Emeritus
 
Pblais's Avatar

Join Date: Mar 2003
Location: Hayes, VA
Boat: Gozzard 36
Posts: 8,700
Images: 15
Send a message via Skype™ to Pblais
Quote:
Too many unanswered questions for me to consider trying it.
Too many answered questions as well. This is a topic that comes up time and time again. The ultimate in aggressive attack defensive systems.

Plastics owls are cheaper and have comparable performance and similar mythical properties concerning a narrower variety of unwanted guests. People do buy and sell those.
__________________
Paul Blais
s/v Bright Eyes Gozzard 36
37 15.7 N 76 28.9 W
Pblais is offline   Reply With Quote
Old 29-01-2009, 09:30   #42
Senior Cruiser

Cruisers Forum Supporter

Join Date: Apr 2008
Posts: 769
I looked into electric fences (just now). They work differently than I originally thought. They have an 'energizer' which sends out high voltage pulses (about ~1 sec) that terminate into a grounding pole (in our case, a wire into the water). In this case, you wouldn't need the 'victim' to be grounded.

Not sure what this would do to your zinc...
__________________
anotherT34C is offline   Reply With Quote
Old 29-01-2009, 10:20   #43
Registered User
 
swagman's Avatar

Join Date: Sep 2005
Location: Winter land based UK New Forest. Summer months away. Making the transition from sail to power this year - scary stuff.
Boat: Super Van Craft 1320 Power Yacht
Posts: 2,175
Images: 10
Send a message via Skype™ to swagman
Interesting the way people approach possible risks when they plan to go off cruising.

Cruising for me is heading off over the sunset, sailing free, meeting new people with an open mind etc etc. With so many square miles of ocean to explore, its easy enough to avoid the bad spots - you just go elsewhere.

Surely thats an easier solution than carrying a stock of weapons, electric fences or even flaming crossbow bolts?

Cheers
JOHN
__________________
Don't take life too seriously. No ones going to make it out alive......Go see our blog at http://www.sailblogs.com/member/yachtswagman/
swagman is offline   Reply With Quote
Old 29-01-2009, 10:50   #44
Senior Cruiser

Cruisers Forum Supporter

Join Date: Apr 2008
Posts: 769
Quote:
Originally Posted by swagman View Post
Interesting the way people approach possible risks when they plan to go off cruising.

Cruising for me is heading off over the sunset, sailing free, meeting new people with an open mind etc etc. With so many square miles of ocean to explore, its easy enough to avoid the bad spots - you just go elsewhere.

Surely thats an easier solution than carrying a stock of weapons, electric fences or even flaming crossbow bolts?

Cheers
JOHN
Agree 100%. I'm far more scared of weather than I am of people.
__________________
anotherT34C is offline   Reply With Quote
Old 29-01-2009, 11:43   #45
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,580
Images: 240
Quote:
Originally Posted by swagman View Post
Interesting the way people approach possible risks when they plan to go off cruising...
JOHN
Why do we take risks and pursue adventure? Wouldn't it be easier and better to play safe and stay at home?

This will make an excellent topic for another discussion. I tried to open such as discussion < Cruisers' Psychology > back in 2006, but it wasn’t productive at that time.

Are there any adults wishing to try again?
__________________

__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric Outboard JohnnyC Auxiliary Equipment & Dinghy 23 28-02-2010 06:01
Electric Outboards Jackstee Multihull Sailboats 1 23-08-2008 10:44
Electric motors klevalt Multihull Sailboats 59 30-07-2008 11:27
Going Electric olivertwist Propellers & Drive Systems 0 08-05-2008 18:31



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:05.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.