Reply
 
Thread Tools Search this Thread
 
Old 18 January 2012, 14:28   #11
RIBnet supporter
 
mick's Avatar
 
Country: UK - England
Town: Wakefield
Boat name: Bouncer
Make: Redbay Stormforce
Length: 6m +
Engine: 2x Honda 90Hp
MMSI: 235025718
Join Date: Jun 2009
Posts: 3,984
Have you watched the guys doing the Gortex challenge they use the musto suits and jump in and float about.
__________________
mick is offline   Reply With Quote
Old 18 January 2012, 15:01   #12
RIBnet supporter
 
Pikey Dave's Avatar
 
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 7,596
RIBase
Quote:
Originally Posted by captnjack

How is this related to falling overboard with 1ata gas in your suit? Many RIB and rafting oriented drysuits don't even have inflation/deflation valves.
Errrm! Because air at whatever pressure, will float in water. If you have air in your suit & invert, it will rise to the highest point, in my case & Kerny's hypothetical situation , the feet end. result= feet up, head down :nono:
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: See rule#5
Pikey Dave is offline   Reply With Quote
Old 18 January 2012, 15:03   #13
RIBnet supporter
 
Pikey Dave's Avatar
 
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 7,596
RIBase
Quote:
Originally Posted by SPR
I got an Auto dump value fitted to my suit , just pug your dry suit on and go for a walk in water you will see your the effect at top...UHF suit gets clingy on the bottom half and puffy at top!

S.
You might want to chell speck that
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: See rule#5
Pikey Dave is offline   Reply With Quote
Old 18 January 2012, 16:02   #14
Member
 
Country: USA
Town: Seattle
Boat name: Water Dog
Make: Polaris
Length: 4m +
Engine: Yamaha 60hp
Join Date: Apr 2007
Posts: 1,152
Quote:
Originally Posted by Pikey Dave View Post
Errrm! Because air at whatever pressure, will float in water. If you have air in your suit & invert, it will rise to the highest point, in my case & Kerny's hypothetical situation , the feet end. result= feet up, head down :nono:
Right.
Are you actually a diver? Have you tried floating head down feet up at the surface? Just a suit on no weighbelt or tank etc. You can't do it. There is residual air in the chest portions of the suit, there's some gas in your lungs too, there's adipose tissue. Your head is not a massively negative weight with these purportedly bouyant feet sticking up in the air like a buoy.

Really just dive in sometime. You won't float feet up. Within a few seconds you will be horizontal. Face down maybe but roughly horizontal. Then just roll over.

I would still recommend life jackets despite the inherent bouyancy of a drysuit.
__________________
captnjack is offline   Reply With Quote
Old 18 January 2012, 16:10   #15
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Etec 60
MMSI: 235087492
Join Date: May 2010
Posts: 7,040
RIBase
Send a message via Skype™ to kerny
__________________
kerny is offline   Reply With Quote
Old 18 January 2012, 16:23   #16
RIBnet supporter
 
Pikey Dave's Avatar
 
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 7,596
RIBase
Quote:
Originally Posted by captnjack View Post
Right.
Are you actually a diver?.
Yup, since 1976, couple of thousand dives in that time, stopped counting years ago. Been diving trimix rebreathers since 2003, have done dozens of +100m dives
A Neoprene dry suit will indeed float you horizontally as it is inherently bouyant, a membrane surface suit similar to the OP's has no intrinsic bouyancy & relies on the trapped air inside, this will migrate to the highest point. If you upend in a membrane suit (ie do a surface dive) you WILL hang head down. We used to teach this in the pool & how to recover from it, i.e. as previously mentioned, curl into a ball, roll & force the air into the chest area.
Re the adipose fat, maybe we don't carry as much on this side of the pond as our cousins
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: See rule#5
Pikey Dave is offline   Reply With Quote
Old 18 January 2012, 16:42   #17
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Etec 60
MMSI: 235087492
Join Date: May 2010
Posts: 7,040
RIBase
Send a message via Skype™ to kerny
Quote:
Originally Posted by Pikey Dave View Post
Re the adipose fat, maybe we don't carry as much on this side of the pond as our cousins
Erm ...according to recent statistics... apparently we are catching up. Myself excluded of course
__________________
kerny is offline   Reply With Quote
Old 18 January 2012, 16:49   #18
RIBnet supporter
 
Pikey Dave's Avatar
 
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 7,596
RIBase
Quote:
Originally Posted by kerny View Post
... apparently we are catching up.
Aye, then we'll start floating face down
Quote:
Originally Posted by kerny View Post
Myself excluded of course
ain't you got a mirror in your house
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: See rule#5
Pikey Dave is offline   Reply With Quote
Old 18 January 2012, 16:56   #19
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Etec 60
MMSI: 235087492
Join Date: May 2010
Posts: 7,040
RIBase
Send a message via Skype™ to kerny
Quote:
Originally Posted by pikey dave View Post
aye, then we'll start floating face down
ain't you got a mirror in your house
Click image for larger version

Name:	img045.jpg
Views:	191
Size:	146.2 KB
ID:	64993

Look no adipose.

__________________
kerny is offline   Reply With Quote
Old 18 January 2012, 17:02   #20
RIBnet supporter
 
Pikey Dave's Avatar
 
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 7,596
RIBase
Quote:
Originally Posted by kerny View Post
Attachment 64993

Look no adipose.

Yeah, I looked like that 30 years ago as well.
Bilges here we come
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: See rule#5
Pikey Dave is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:39.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.