The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > Trucks & Trailers
Search

Notices

Random Quote: Things are more like they are now than they ever have been.
Reply
 
Thread Tools Search this Thread
Old 02-02-2012, 03:00 PM
  #1    
Senior Member
 
Join Date: Sep 2010
Location: Miami, FL
Posts: 193
Default Bunks and Strakes

I called the manufacturer of my boat, and they advised me that the bunks on my trailer should not be under the strakes. They went on to say that the strakes are not part of the hull, and that strakes are not designed to carry weight. I've called different trailer manufacturers like Continental and Rocket. Both advised me that; really, the strakes are the only part of the boat that are parallel to the ground; and therefore, the only logical place to put the bunks. One manufacturer explained that they could cut the top of the bunk at whatever angle of deadrise ( in my case 21 degrees), but that the weight of the boat would push outward on the bunks causing the bunk brackets to bend or the bunk to crack over time.

In South Florida, 99% of the trailered boats that I see are sitting on the strakes.

I'm cornfused, what do you guys think?
__________________
2006 Pursuit 2570 CC w/ Yamaha F-150s
hotdog68 is offline   Reply With Quote
Old 02-03-2012, 07:03 PM
  #2    
Senior MemberCaptains Club Member
 
Join Date: Feb 2003
Posts: 23,543
Default

Strakes / chimes. Chimes are the part of the hull that is parall with the ground and strakes are the ribs on the underside of the hull to give the hull control in the water.

No I would Not put bunks under the strakes, but I would put bunks under the chimes if I wanted to. I would put bunks in between the stracks and I would put bunks close up to the chimes but not under them.
__________________
.
..
... a book is a dream you hold in your hands.

<img src=http://www.thehulltruth.com/members/garett-albums-posting-temp-pics-picture69025-reconstruction.jpg border=0 alt= />
Garett is offline   Reply With Quote
 
Old 02-06-2012, 06:30 PM
  #3    
Senior Member
 
Join Date: May 2011
Location: Maitland, Florida
Posts: 521
Default

Try to place the bunks under or very near the stringers.
SCFD rtrd is offline   Reply With Quote
Old 02-07-2012, 06:02 AM
  #4    
Senior MemberCaptains Club Member
 
Join Date: Oct 2003
Posts: 53,976
Default

WTF is a chime?

It's STRAKE and CHINE.

The CHINE is the outer edge where the botton meets the hull side.

This hull has 2 strakes and the trailer is set up Wrong.

Bunks should be just outside the strakes

__________________
Question for brewhead
Realscreamer69
Which idiot told you that CO2 only makes up 0.039% of the atmosphere?
Brockville
AND .50 kwh IS A GOOD PRICE, BUT I'M SURE YOU ALREADY KNEW THAT
mronzo
Hey "Mr. Economist" These companies make BILLION$ and can certainly afford to pay workers more!
RedBank Steve
I'm anything but a racist. Why can't they hire a few AMERICANS here and there. Oh, that's right, they might have to pay them a living wage. Sorry about that.
Don't ask me how I know. I just do.
Colbachlaw
9 of the 10 hottest years for the entire planet have been in the last 10 years. Do the math, if you can.
A Few Dollars is offline   Reply With Quote
Old 02-07-2012, 10:22 AM
  #5    
Admirals Club
 
Join Date: Apr 2005
Location: AL
Posts: 2,876
Default

I disagree, the bunks for a fiberglass boat should be under the strakes (like you said it is the only parallel structure under the boat).

In a wood construction the strake is not integral so I would not support the boat on a strake that was not integrated with the structure of the boat (please don't nit pick the details on this). Traditional ship building required the hull to be formed first and the strakes to be added (usually with mahogany) then glassed over. but in new fiberglass molded boat construction the bunks should be under the strakes for the reasons that you posted above.

Support it under the strakes. Now if your boat company is telling you not to I would do what they say, but I would ask them why.
mwgoldman is offline   Reply With Quote
Old 02-07-2012, 10:22 AM
  #6    
Senior MemberCaptains Club Member
 
Join Date: Mar 2004
Location: Staten Island ,N.Y.
Posts: 2,009
Default

Maybe he has a bunk under a set of wind chimes.....
__________________


2011 Regulator 23 FS
Yamaha F300
"Get Bent"
Fcal is offline   Reply With Quote
Old 02-07-2012, 10:40 AM
  #7    
Senior Member
 
Join Date: Jan 2011
Location: Pgh Pa
Posts: 7,072
Default

Quote:
Originally Posted by A Few Dollars View Post
WTF is a chime?

It's STRAKE and CHINE.

The CHINE is the outer edge where the botton meets the hull side.

This hull has 2 strakes and the trailer is set up Wrong.

Bunks should be just outside the strakes

You are correct to a point.( Trailer bunks are set up wrong ) I think the bunk that is verticle should be tapered to the angle of the hull and be on the inside of the strake which will help in centering the boat when retrieving. The bottom bunk should also be inside the strake at an angle that reflects hull . (edit) Looking again at the picture, the bunk looks to be tapered. It is designed to be inside of the strake. The boards should just touch the strakes
__________________
Assault Squadron NINE
River Assault Division NINETY-ONE-1966
Thalasso is offline   Reply With Quote
Old 02-07-2012, 10:50 AM
  #8    
Admirals Club
THT sponsor
 
Join Date: Sep 2009
Location: Bay St Louis, Ms
Posts: 405
Default

Bunks should be placed just inside or just outside the strakes to help guide the boat in place.
Outside the strake.

Inside the strake.


This pic shows a common problem when bunks are set directly under strakes. If the boat is not loaded perfect, it can easily fall off the strake causing the boat to load crooked as seen in this pic.
Kevin Desselle is offline   Reply With Quote
Old 02-07-2012, 11:22 AM
  #9    
gf
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Feb 2001
Location: North of Boston
Posts: 10,741
Default

Kevin Desselle, nice job with that post.

Not sure where that Regulator 23 picture came from but that looks like a sweet set-up and the trailer looks good too.

On my boat, the bunk sits inside the strake.

gf is offline   Reply With Quote
Old 02-08-2012, 06:01 AM
  #10    
Senior MemberCaptains Club Member
 
Join Date: Oct 2003
Posts: 53,976
Default

Quote:
Originally Posted by Kevin Desselle View Post
Bunks should be placed just inside or just outside the strakes to help guide the boat in place.

This pic shows a common problem when bunks are set directly under strakes. If the boat is not loaded perfect, it can easily fall off the strake causing the boat to load crooked as seen in this pic.
Kevin knows.
__________________
Question for brewhead
Realscreamer69
Which idiot told you that CO2 only makes up 0.039% of the atmosphere?
Brockville
AND .50 kwh IS A GOOD PRICE, BUT I'M SURE YOU ALREADY KNEW THAT
mronzo
Hey "Mr. Economist" These companies make BILLION$ and can certainly afford to pay workers more!
RedBank Steve
I'm anything but a racist. Why can't they hire a few AMERICANS here and there. Oh, that's right, they might have to pay them a living wage. Sorry about that.
Don't ask me how I know. I just do.
Colbachlaw
9 of the 10 hottest years for the entire planet have been in the last 10 years. Do the math, if you can.
A Few Dollars is offline   Reply With Quote
Old 02-10-2012, 12:05 PM
  #11    
Senior Member
 
Join Date: Sep 2010
Location: Miami, FL
Posts: 193
Default

Thanks for the helpful information. You would think that the strakes are strong enough because alot of the bunks are made curved on one corner and flat on top. You would think that the curved part fits perfectly on the underside of the the strake where it meets the hull and the flat part falls neatly under the strake. I have adjusted the bunks inward so that the curved part of the bunks hold the boat. I have adjusted it so that a credit card fits between the flat part of the bunk and the underside of the strake. I am considering adding two more bunks closer into the middle in order to distribute the weight; however, I don't know how this is going to affect the loading process of the boat. I usually power load the boat because, otherwise, I can't get the boat to center perfectly on the trailer. Has anyone ever added two center bunks under the transom?
__________________
2006 Pursuit 2570 CC w/ Yamaha F-150s
hotdog68 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

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0