Reply
 
Thread Tools Display Modes
 
Old 10-30-2014, 12:00 PM   #1
Guru
 
Alaskan Sea-Duction's Avatar
 
City: Inside Passage Summer/Columbia River Winter
Country: USA
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 3,160
Thumbs up Blowing Bubbles

This is a cool concept. I wonder when the yachting industry will adopt it.

Post-Panamax Bulk Carrier Rides Air Bubble Blanket to Reduce Emissions - gCaptain Maritime & Offshore News
__________________
Advertisement

__________________
1988 M/Y Camargue Yacht Fisher
Alaskan Sea-Duction
MMSI: 338131469
Blog: http://alaskanseaduction.blogspot.com/
Alaskan Sea-Duction is offline   Reply With Quote
Old 10-30-2014, 05:26 PM   #2
Guru
 
Carolena's Avatar
 
City: DC
Country: USA
Vessel Name: Carolena II
Vessel Model: Nordic Tug 32/34
Join Date: Aug 2012
Posts: 605
I seem to recall seeing a relatively recent article about a pleasure boat that had holes in the hull that would cause air to exit when on plane for a similar effect. The air would enter near the bow and exit under the areas of the boat that are in the water once on plane. I just can't recall the details and am not finding anything on Google.
__________________

Carolena is offline   Reply With Quote
Old 10-30-2014, 08:59 PM   #3
Guru
 
LarryM's Avatar
 
City: League City, TX
Country: USA
Vessel Name: Pelago
Vessel Model: Wellcraft 3300 Coastal
Join Date: Aug 2011
Posts: 843
Beneteau has a new hull technology called Air Step that is available on several models. Looks promising for faster planing boats, but I don't know what advantage it would have at typical trawler or displacement speeds.

LarryM is offline   Reply With Quote
Old 10-30-2014, 09:48 PM   #4
GFC
Guru
 
GFC's Avatar
 
City: Tri Cities, WA
Country: USA
Vessel Name: Beachcomber
Vessel Model: Sea Ray 550 Sedan Bridge
Join Date: Nov 2012
Posts: 2,705
Regal Boats has been doing that idea for years with their Fast-Trac hull. It basically uses some slots in the hull, cut in at about a 45* angle outward from the centerline. The thought is that the water becomes turbulent and creates bubbles as the water passes over the slot.

I don't know how much it adds to the efficiency of the hull.
__________________
Mike and Tina
Beachcomber 1995 Sea Ray 550 Sedan Bridge
GFC is offline   Reply With Quote
Old 10-30-2014, 09:56 PM   #5
Guru
 
bligh's Avatar
 
City: Santa Cruz, CA
Country: USA
Vessel Name: Frisky
Vessel Model: 99 Nordic Tug
Join Date: May 2013
Posts: 1,097
Ranger tugs has a hull design that incorporates this (shady) technology.
bligh is offline   Reply With Quote
Old 10-31-2014, 07:11 AM   #6
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,537
A navy Captain , believe it or not named, John Paul Jones , patented a seyup where the engine exhaust was the source of the air ride , back in the 50-60s.
FF is offline   Reply With Quote
Old 10-31-2014, 07:20 AM   #7
Guru
 
psneeld's Avatar
 
City: Avalon, NJ
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 15,937
One of the go fast center console boats had "air step" something or other....for at least 10 years or so. Most of the step hulls though I believe were designed to create cavitation/enough turbulence to do the same.

"The Avenger Pro Series is different from all other bay boats because of its unique step-hull. The 1-1/2 inch step ventilates the hull allowing it to run on a cushion of air bubbles. This provides a super soft ride while also creating lift in the transom, ....

http://www.maraudermarine.com/stepped_hull_design.html
psneeld is offline   Reply With Quote
Old 10-31-2014, 12:34 PM   #8
Guru
 
Alaskan Sea-Duction's Avatar
 
City: Inside Passage Summer/Columbia River Winter
Country: USA
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 3,160
Well dang, that was the first time I had ever seen this system. Old news or I am just getting old!!
__________________
1988 M/Y Camargue Yacht Fisher
Alaskan Sea-Duction
MMSI: 338131469
Blog: http://alaskanseaduction.blogspot.com/
Alaskan Sea-Duction is offline   Reply With Quote
Old 10-31-2014, 04:03 PM   #9
Guru
 
City: Georgia
Country: USA
Join Date: Jul 2012
Posts: 952
You might have been on the leading edge of that technology, but so old you forgotten about it already.
Rambler is offline   Reply With Quote
Old 10-31-2014, 04:28 PM   #10
Guru
 
Alaskan Sea-Duction's Avatar
 
City: Inside Passage Summer/Columbia River Winter
Country: USA
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 3,160
Quote:
Originally Posted by Rambler View Post
You might have been on the leading edge of that technology, but so old you forgotten about it already.
Amen brother....
__________________

__________________
1988 M/Y Camargue Yacht Fisher
Alaskan Sea-Duction
MMSI: 338131469
Blog: http://alaskanseaduction.blogspot.com/
Alaskan Sea-Duction is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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





All times are GMT -5. The time now is 03:40 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012