Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 31-08-2009, 21:35   #1
Registered User
 
boat_alexandra's Avatar

Join Date: Aug 2009
Location: chesapeake bay
Boat: bristol 27
Posts: 2,823
Cheap Way to Make Unsinkable

I figure the cheapest way is to just get some inner tubes:

DURO TIRE INNER TUBES FOR BOAT, CAMPING AND UTILITY TRAILER TIRES - CarParts Quality Discount Parts and Accessories

like maybe 10 or 15 of them. Then stuff them in the corners of the boat and inflate. If I do my math right, I should have an unsinkable boat for $60.
__________________

__________________
boat_alexandra is offline   Reply With Quote
Old 01-09-2009, 12:57   #2
Registered User
 
cdennyb's Avatar

Join Date: Jun 2007
Location: Northern California
Boat: finally a catamaran dive boat...
Posts: 505
Send a message via MSN to cdennyb Send a message via Yahoo to cdennyb Send a message via Skype™ to cdennyb
You're kidding right?

LoL

I hate the smell of fresh rubber... how about the two part urethane expanding foam? Any place you can stick a 1/4" dia nozzle it'll fill with foam.

I like aromatic solvent smells to inner tubes any day. LoL
__________________

__________________
the perfect dive boat is one you're on...
cdennyb is offline   Reply With Quote
Old 01-09-2009, 13:19   #3
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,371
So I think you get 64 lbs of floatation from air per cubic foot less the weight of the "container". Rubber tubes would be fairly heavy containers. For a 10,000 lb boat that's 156 cubic feet or about a 5.25 ft cube of air needed. At neutral bouancy, the weight of the rig may cause the boat to turn turtle..
__________________
Cheechako is offline   Reply With Quote
Old 01-09-2009, 14:28   #4
Registered User
 
cdennyb's Avatar

Join Date: Jun 2007
Location: Northern California
Boat: finally a catamaran dive boat...
Posts: 505
Send a message via MSN to cdennyb Send a message via Yahoo to cdennyb Send a message via Skype™ to cdennyb
you guys are killing me....

wouldn't it have to sink first... before it could flip over?

__________________
the perfect dive boat is one you're on...
cdennyb is offline   Reply With Quote
Old 01-09-2009, 14:36   #5
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,371
love that horse!

speaking of kicking farts out of a dead horse.... I guess the devil's in the details as to when sh'ell turn turtle, but yea, after filling or mostly filling with water it will be a question as to where the floatation sits in the boat. I have done the ABYC Level Flotation test before, it's surprising what will turn over! even without a rig standing up there... I see no emergency flotation value in trying to get up onto a round bottomed sailboat that floats but is upside down!!
__________________
Cheechako is offline   Reply With Quote
Old 01-09-2009, 16:52   #6
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,326
I'm thinking maybe real large helium balloons, like for weather ballons. No only would they lift the boat, but they could act like sals to pull the boat along.
__________________
sailorboy1 is offline   Reply With Quote
Old 01-09-2009, 17:00   #7
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,371
Around the world in 80 days......

Yes... there you go, not inside the boat but tied to the rig! in fact with enough balloons, some of these really light cat's may be able to avoid the sea state entirely....
__________________
Cheechako is offline   Reply With Quote
Old 01-09-2009, 17:08   #8
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:
like maybe 10 or 15 of them.
OK, lets assume it would be enough (it won't). Just where do you put all the crap you need to carry with all the storage inflated with inner tubes?

There is another alternative. Seal the boat up air tight so no water can get in or air get out. Being able to breath is way over rated so it could work better.

The weather balloon idea seems fine but I'm thinking Zeppelin with the boat inside nice and dry.
__________________
Paul Blais
s/v Bright Eyes Gozzard 36
37 15.7 N 76 28.9 W
Pblais is offline   Reply With Quote
Old 01-09-2009, 18:43   #9
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,326
Yeah, Zeppelin I like that. If only passager is the boat then there is enough space available to surround the boat with a moat with nice blue water, a sandy beach on one side. And of course some beach babes running around.

Time to restart my search for the next boat.
__________________
sailorboy1 is offline   Reply With Quote
Old 01-09-2009, 23:32   #10
Moderator Emeritus
 
Ex-Calif's Avatar

Cruisers Forum Supporter

Join Date: May 2007
Location: Singapore
Boat: Maxi 77 - Relax Lah!
Posts: 11,514
Images: 4
Carrying around the helium would be a PITA for the rare eventuality of having to deploy the lift balloons. Dual purpose your water maker to also be hydrogen generator. just remember to shut off the cooker before deploying...
__________________
Relax Lah! is For Sale <--- Click
Click--> Custom CF Google Search or CF Rules
You're gonna need a bigger boat... - Martin Brody
Ex-Calif is offline   Reply With Quote
Old 02-09-2009, 00:37   #11
Registered User

Join Date: Aug 2009
Posts: 211
Quote:
Originally Posted by Ex-Calif View Post
Carrying around the helium would be a PITA
Exactly! Something you've all overlooked is that methane is also lighter than air and cows are known to produce lots of the stuff. Simply buy a small cow and keep it in the forecabin - sealed airtight of course. This has the added advantage of the cow being in the right place in the event of a collision, thus also acting as a shock-absorber and reducing injuries to crew.
__________________
ColdFusion is offline   Reply With Quote
Old 02-09-2009, 05:04   #12
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,326
I don't know about the cow thing. Sounds great in theory, but after a while I would be looking at that cow and thinking STEAK!
__________________
sailorboy1 is offline   Reply With Quote
Old 02-09-2009, 14:22   #13
Registered User
 
boat_alexandra's Avatar

Join Date: Aug 2009
Location: chesapeake bay
Boat: bristol 27
Posts: 2,823
Quote:
Originally Posted by cdennyb View Post
I hate the smell of fresh rubber... how about the two part urethane expanding foam? Any place you can stick a 1/4" dia nozzle it'll fill with foam.

I like aromatic solvent smells to inner tubes any day. LoL

What about having the boat shoot foam inside when the water level gets too high and it can't pump fast enough?
__________________
boat_alexandra is offline   Reply With Quote
Old 02-09-2009, 14:51   #14
Senior Cruiser

Cruisers Forum Supporter

Join Date: Oct 2005
Location: Cruising NC, FL, Bahamas, TCI & VIs
Boat: 1964 Pearson Ariel 'Faith' / Pearson 424, sv Emerald Tide
Posts: 1,531
Thumbs up

Quote:
Originally Posted by geckosenator View Post
What about having the boat shoot foam inside when the water level gets too high and it can't pump fast enough?

Ping Pong Balls.


Just carry... oh I don't know.. Lots of them.

Maybe 10,000 of them. You could stick them in all your lockers and under the settess...
__________________
s/v 'Faith' is offline   Reply With Quote
Old 02-09-2009, 14:53   #15
Registered User

Join Date: Aug 2009
Posts: 211
Or, putting some of these ideas together, what about a ballistic deployment system for a Zeppelin, powered by methane from the cow. Once the Zeppelin has lifted the boat clear of the water, expanding foam would automatically fill the whole boat, thus plugging the hole. Of course, the cow will still be on the boat, so the supply of methane will be cut off and the Zeppelin will gradually lower the boat back into the water, by which time the foam should have cured.

All I need to get this idea off the ground is the first customer willing to pay say, $100,000 and a donor yacht for testing purposes. Any takers?
__________________

__________________
ColdFusion 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
What Make Is this Boat? H28Sailor Monohull Sailboats 18 27-09-2009 21:19
Caribe RIB Unsinkable? endoftheroad Auxiliary Equipment & Dinghy 5 10-06-2009 08:54
How Do I Make It Stick? Fijiman Construction, Maintenance & Refit 5 20-05-2009 15:57
Make a living breakaway Boat Ownership & Making a Living 7 08-12-2007 15:25
did you make it? beau Multihull Sailboats 1 13-03-2007 17:37



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 22:45.


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.