Hobie Cat Forums

It is currently Fri Jul 25, 2014 2:27 pm

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject: TI ama buoyancy?
PostPosted: Wed Feb 29, 2012 12:54 pm 
Offline
Site Rank - Admiral

Joined: Mon Oct 29, 2007 9:08 am
Posts: 209
Location: St. Charles, IL
Does anyone know what the ama on the TI will support? And how far apart are the aka holes on the boat/how much room is there between the akas?

Dan

_________________
Dan St. Gean
'82 H 18
'96 H Wave


Top
 Profile  
 
 Post subject: Re: TI ama buoyancy?
PostPosted: Wed Feb 29, 2012 1:49 pm 
Offline
Site Rank - Old Salt

Joined: Wed Oct 19, 2011 6:02 am
Posts: 322
Location: Cape Coral, FL
one ti ama will support me but not both my girlfriend and me. I would hazard a guess around 250 to 300 pounds.

fill one with water, then measure how much water is in it while pouring it out. That will tell you the volume, which can be used to determine buoyancy and displacement.

j

_________________
2011 Golden Papaya TI with a 250 square foot spinnaker!
also a more manageable 100 square foot spinny...
&
the TI3 rear ama mod


Top
 Profile  
 
 Post subject: Re: TI ama buoyancy?
PostPosted: Fri Mar 09, 2012 5:15 am 
Offline
Site Rank - Captain

Joined: Thu Sep 30, 2010 4:44 am
Posts: 38
Location: Weymouth, Dorset.UK
I thought I saw a figure of 60 litres for the AI which sounds about right, 1 litre supports 1 kg or 2.2 pounds=132 pounds support (imperial, -the weight of the object). The figures for the TI must be around somewhere.


Top
 Profile  
 
 Post subject: Re: TI ama buoyancy?
PostPosted: Fri Mar 09, 2012 1:19 pm 
Offline
Site Rank - Old Salt

Joined: Tue May 18, 2010 2:31 pm
Posts: 2656
Location: Kailua 96734
kayakman7 wrote:
one ti ama will support me but not both my girlfriend and me. I would hazard a guess around 250 to 300 pounds.

fill one with water, then measure how much water is in it while pouring it out. That will tell you the volume, which can be used to determine buoyancy and displacement.

j


KM7, humans are buoyant, and in the water we only require about 20lbs of floatation.

If my mammary serves me well, I think that women require slightly less. :wink:

_________________
"THE WIND IS YOUR FRIEND,.."


Top
 Profile  
 
 Post subject: Re: TI ama buoyancy?
PostPosted: Fri Mar 09, 2012 2:44 pm 
Offline
Site Rank - Old Salt

Joined: Fri Dec 05, 2008 2:32 am
Posts: 1773
Location: Calga NSW, Australia
I think Roadrunner once quoted the buoyancy of each TI ama at 220 pounds.
You wouldn't be thinking of building a Cat using TI amas would you? Gee, come to think of it, that's an interesting idea. 8)

_________________
Image


Top
 Profile  
 
 Post subject: Re: TI ama buoyancy?
PostPosted: Fri Mar 09, 2012 9:25 pm 
Offline
Site Rank - Old Salt

Joined: Wed Oct 19, 2011 6:02 am
Posts: 322
Location: Cape Coral, FL
NOHUHU wrote:
kayakman7 wrote:
one ti ama will support me but not both my girlfriend and me. I would hazard a guess around 250 to 300 pounds.

fill one with water, then measure how much water is in it while pouring it out. That will tell you the volume, which can be used to determine buoyancy and displacement.

j


KM7, humans are buoyant, and in the water we only require about 20lbs of floatation.

If my mammary serves me well, I think that women require slightly less. :wink:

I should have been more specific. When standing on my haka, which is directly over the ama, it floats. If there are two of us, we sink. It is likely that the other ama and haka were counter balancing the one we were standing on but I would estimate around 250 to 300 pounds of floatation. We didn't sink very fast...

Cheers
J

_________________
2011 Golden Papaya TI with a 250 square foot spinnaker!
also a more manageable 100 square foot spinny...
&
the TI3 rear ama mod


Top
 Profile  
 
 Post subject: Re: TI ama buoyancy?
PostPosted: Fri Mar 09, 2012 10:31 pm 
Offline
Site Rank - Old Salt

Joined: Tue May 18, 2010 2:31 pm
Posts: 2656
Location: Kailua 96734
Makes sense. I have sat out and fished/ cruised right over the TI Amas and one seems to support my 185lb dryweight just fine.

But with no girlfriend or big fish, I didn't take it to the limit. :(

_________________
"THE WIND IS YOUR FRIEND,.."


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group