Cruisers Forum
 

Go Back   Cruisers & Sailing Forums > The Fleet > General Sailing Forum
Cruiser Wiki Click Here to Login
Register Vendors FAQ Community Calendar Today's Posts Log in

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 13-09-2019, 21:18   #1
Registered User

Join Date: Dec 2016
Location: Rio de Janeiro, RJ, Brazil
Boat: Dream 45'
Posts: 55
Lightning 'superbolts' form over oceans from November to February

See the article here:

https://www.sciencedaily.com/release...0909113041.htm

"The new paper shows that superbolts are most common in the Mediterranean Sea, the northeast Atlantic and over the Andes, with lesser hotspots east of Japan, in the tropical oceans and off the tip of South Africa. Unlike regular lightning, the superbolts tend to strike over water."
iabmatos is offline   Reply With Quote
Old 13-09-2019, 21:39   #2
Registered User
 
Sojourner's Avatar

Join Date: Oct 2017
Location: On the boat!
Boat: SY Wake: 53' Amel Super Maramu
Posts: 885
Re: Lightning 'superbolts' form over oceans from November to February

Great, just great... First there were superwaves. Now there are superbolts of lightning. What do I gotta worry about next? Superbarnacles!? Megarums?! Flying squid?!? I need to lie down....
Sojourner is offline   Reply With Quote
Old 13-09-2019, 22:33   #3
Registered User
 
gamayun's Avatar

Join Date: Aug 2013
Location: Oakland, CA
Boat: Freedom 38
Posts: 2,503
Re: Lightning 'superbolts' form over oceans from November to February

Don't forget polyester mites....
gamayun is offline   Reply With Quote
Old 13-09-2019, 22:38   #4
Moderator
 
Jim Cate's Avatar

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 21,356
Re: Lightning 'superbolts' form over oceans from November to February

Quote:
Originally Posted by gamayun View Post
Don't forget polyester mites....
Those critters make me glad that my boat is made of epoxy, glass and red cedar. No yummy polyester here!

Jim
__________________
Jim and Ann s/v Insatiable II, lying Port Cygnet Tasmania once again.
Jim Cate is offline   Reply With Quote
Old 14-09-2019, 09:54   #5
Registered User

Join Date: Sep 2016
Boat: Montgomery 23
Posts: 220
Re: Lightning 'superbolts' form over oceans from November to February

Quote:
Originally Posted by Sojourner View Post
Great, just great... First there were superwaves. Now there are superbolts of lightning. What do I gotta worry about next? Superbarnacles!? Megarums?! Flying squid?!? I need to lie down....
Exactly. Something else that is/may be a concern, that we really can't do anything about! Will wrapping the spare electronics in tin foil help?
Like wearing rubber soled shoes to protect you from lightening strikes? If you think a half-inch of rubber is gonna protect you from ANY lightening bolt, 'super' or not, good for you. Hang in there. Never mind that this is all happening at the speed of light, with millions of volts, more heat than at the core of the sun and more energy than an atomic bomb...
Maybe tin foil AND store the spare electronics in the back-up pressure cooker.
Like rogue waves, lightening is something I really can't do much about. Hope for the best, plan for the worst. And don't touch anything metal on the boat!
rmlarson1098 is offline   Reply With Quote
Old 14-09-2019, 10:03   #6
Registered User
 
daletournier's Avatar

Join Date: Jan 2012
Location: Australia
Boat: Catalina 470
Posts: 4,578
Re: Lightning 'superbolts' form over oceans from November to February

Quote:
Originally Posted by gamayun View Post
Don't forget polyester mites....
Seriously? so where do I find them? I worry enough ,now theres this!
daletournier is offline   Reply With Quote
Old 14-09-2019, 10:41   #7
Registered User

Join Date: Dec 2016
Location: Rio de Janeiro, RJ, Brazil
Boat: Dream 45'
Posts: 55
Re: Lightning 'superbolts' form over oceans from November to February

Hey, if you've got a "joule-ometer" aboard and the hit gets you over the 1 MEGAJoules mark, you lucky - you've got one of those rare superbolts. Otherwise it would be just a very basic lightning strike.
iabmatos is offline   Reply With Quote
Old 14-09-2019, 12:11   #8
Registered User
 
Jesse's Avatar

Join Date: Apr 2008
Location: Oro Bay Puget Sound
Boat: Irwin sloop
Posts: 407
Re: Lightning 'superbolts' form over oceans from November to February

Quickly grab the roll of aluminum foil and make a hyperprotective "Superjolt Helmet" and you're safe. Of course the boat is toast but that is another matter altogether
Jesse is offline   Reply With Quote
Old 14-09-2019, 20:04   #9
Registered User

Join Date: Feb 2016
Posts: 255
Re: Lightning 'superbolts' form over oceans from November to February

Quote:
Originally Posted by Jim Cate View Post
Those critters make me glad that my boat is made of epoxy, glass and red cedar. No yummy polyester here!

Jim
Super containers
peter57 is offline   Reply With Quote
Old 14-09-2019, 21:24   #10
Registered User

Join Date: Sep 2007
Location: Queensland, Australia
Boat: None at present--between vessels. Ex Piver Loadstar 12.5 metres
Posts: 1,475
Re: Lightning 'superbolts' form over oceans from November to February

Yes--it would help. Maybe it might make the difference between being able to call for help or not, in the event of a small to medium strike.

Lightning is formed by the jet stream. The potential for the greatest build-up of charge is in the areas where discharge is less frequent. That leads to big discharges, sometimes it is said from a blue sky--but one thing all discharges need is an ionised pathway for conduction to occur.

This can be an electrostatic field of the same or even opposite polarity, and can be produced by atmospheric gas movements producing a charge, dust and moisture, a combination of some or all, and some ionisation may also occur from solar radiation and cosmic particles.

What all vessels need is good lightning protection.

As to protecting your equipment, Mu metal cabinetry is used to house sensitive switching equipment. Such metals have uses in the military, and thus can sometimes be obtained from military disposals and re-built or used as is to house your essential; electronics--then all you need do in a storm is pull out the multi-pin plugs and shut the doors.

Your vessel might not be in any way harmed by a close discharge--I was in a marina when a steel trawler copped a discharge in front of me--it sounded as though I was in front of a 100 mm cannon--and it fried most of my electronics, masthead instrument senders, battery charging, and a couple of radios. The cause was the change in a suddenly rising magnetic field intensity as the discharge took place--it induced sufficient current in my electricals to blow the circuits irreparably.

So--wrapping in foil might help--if you unplug them first--
Mike Banks is offline   Reply With Quote
Old 15-09-2019, 03:49   #11
Registered User

Join Date: Jan 2007
Location: On board
Boat: Tom Colvin Gazelle 42ft
Posts: 325
Re: Lightning 'superbolts' form over oceans from November to February

Sail a metal boat. Large Faraday cage 😊

Jim
Gaia is offline   Reply With Quote
Old 15-09-2019, 07:06   #12
Registered User

Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 13,488
Re: Lightning 'superbolts' form over oceans from November to February

Quote:
Originally Posted by Sojourner View Post
Great, just great... First there were superwaves. Now there are superbolts of lightning. What do I gotta worry about next? Superbarnacles!? Megarums?! Flying squid?!? I need to lie down....
Super Barnacles are an issue in some areas of the Pacific. I met a cruiser last year who lost a boat to them while crossing the Pacific. They multiplied so fast they could not keep them scraped from the hull. In a short time (days) they accumulated so thick that they stalled the boat and it began to sit low on its lines. They fouled the rudder to the point of failure. Then the additional loading plus wave action eventually caused the hull deck joint to start to separate. They had to abandon ship.
belizesailor is offline   Reply With Quote
Old 15-09-2019, 16:07   #13
Registered User

Join Date: Feb 2016
Posts: 255
Re: Lightning 'superbolts' form over oceans from November to February

Quote:
Originally Posted by Gaia View Post
Sail a metal boat. Large Faraday cage 😊

Jim
I hope that is the case.
peter57 is offline   Reply With Quote
Reply

Tags
lightning


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
Form over function getting crazy rsn48 Powered Boats 2 01-05-2019 16:13
Crew Available: Experienced crew available for 3 weeks sometime November to February Octopus Crew Positions: Wanted & Available 1 11-11-2017 10:38
Function over form Tscott8201 Multihull Sailboats 8 21-03-2014 14:47
Superbolts ? GordMay Construction, Maintenance & Refit 3 25-05-2005 10:10

Advertise Here


All times are GMT -7. The time now is 10:25.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.