Reply
 
Thread Tools Search this Thread
 
Old 26 February 2008, 05:49   #1
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
Bending Trailer

wonder if you RIBnet peeps could give me some advice please?

I bought an Admiral trailer last year for my Osprey, I've launched and recovered about 10 times with it and on the last 3 I've noticed this bending draw bar. There was always a little bend there as part of the design, but as a weak spot it has taken to bending when the weight of the boat is on the rear rollers whilst attached to the car. It's all a little tight around the area for reinforcing with a plate top and bottom, so any Ideas?
Attached Thumbnails
Click image for larger version

Name:	25.02.08 006 (Medium).jpg
Views:	403
Size:	72.3 KB
ID:	33116   Click image for larger version

Name:	25.02.08 007 (Medium).jpg
Views:	364
Size:	105.2 KB
ID:	33117   Click image for larger version

Name:	25.02.08 008 (Medium).jpg
Views:	317
Size:	82.5 KB
ID:	33118   Click image for larger version

Name:	25.02.08 009 (Medium).jpg
Views:	359
Size:	104.4 KB
ID:	33119  
__________________

__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 26 February 2008, 06:11   #2
CJL
Member
 
CJL's Avatar
 
Country: UK - England
Town: London
Make: Ribcrafts
Length: 5m +
Engine: 150hp/2x115hp
MMSI: 235090215
Join Date: Oct 2002
Posts: 2,115
RIBase
Send a message via Skype™ to CJL


Looks like its just not up to the job.

I'd take it back and either get it strengthen or insist on your money back as not fit for purpose.

Chris
__________________

__________________
www.northernexposurerescue.org.uk
A registered charity supporting events across England and Wales
Follow us on Vimeo and Facebook
CJL is offline   Reply With Quote
Old 26 February 2008, 06:16   #3
Member
 
Country: UK - England
Make: extreme 24
Length: 7m +
Engine: merc 6.2 320hp
Join Date: Jul 2004
Posts: 709
told you that console was to big,the trailer is bending right under it
__________________
Carl is offline   Reply With Quote
Old 26 February 2008, 06:28   #4
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
Well I can't take it back as Admiral Trailers ceased trading last year.
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 26 February 2008, 06:29   #5
Member
 
Hugh Jardon's Avatar
 
Country: UK - England
Town: Reading, Hants
Boat name: Juicy
Make: Sealine F43
Length: 10m +
Engine: 2 x 370hp
MMSI: TBC
Join Date: Sep 2005
Posts: 2,882
as chris says I would agree that the trailer just does not look strong enough to take the load as the boat is quite heavy, on my trailer the arms meet a lot further forward which in my mind gives a much stronger trailer.

I would be seriously worried and be on the phone to admiral, if you need a pic of where my arms meet in relation to the boat etc then drop me a pm, but before friday as we are off to a warmer place
__________________
Hugh Jardon is offline   Reply With Quote
Old 26 February 2008, 06:29   #6
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,962
Another example of 'professional work'.

Take it back to them.

Edit:
Quote:
Well I can't take it back as Admiral Trailers ceased trading last year.
Oops, I was too slow.

You need more vertical height in the draw bar and possibly a thicker wall section. Getting the rails to join further forward will help as will ensuring the join is rigid to prevent it working as a pivot. Also, having the cross member further to the rear will reduce the bending moment.
__________________
JW.
jwalker is offline   Reply With Quote
Old 26 February 2008, 06:29   #7
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855


Quote:
Originally Posted by Carl View Post
told you that console was to big,the trailer is bending right under it
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 26 February 2008, 06:31   #8
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
This thread is developing too quickly

Taking it back to Admiral is not possible as they are no longer in business
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 26 February 2008, 06:38   #9
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,611
Quote:
Originally Posted by Hightower View Post
Well I can't take it back as Admiral Trailers ceased trading last year.
Hows abouta parallel bar same width as the drawbar, then use half a dozen "long reach" U- bolts and backing plates to "laminate" a stronger bend?

Option 2 (messier) Cut the current drawbar with enough left sticking forward to bolt the new, straight one to that you can then install "on top" of the stub of the old one and sholudn't alter your angl of attaxck (so to speak) too much. You might (difficult to tel lform the photos) be able to use the Roller (replace it with a cast "bolt on" type) be able touse the roller base as a clamp to the crossbar too?
__________________
9D280 is offline   Reply With Quote
Old 26 February 2008, 06:46   #10
CJL
Member
 
CJL's Avatar
 
Country: UK - England
Town: London
Make: Ribcrafts
Length: 5m +
Engine: 150hp/2x115hp
MMSI: 235090215
Join Date: Oct 2002
Posts: 2,115
RIBase
Send a message via Skype™ to CJL
Hmm. Bugger that they are out of business.

Try inserting a slighty smaller box section inside the draw bar (main beam from the hitch) which will straighten it out and then weld it in place. If you can get the inner box sectioned galvanised as well that will help.

However - make sure your repair the damage to the galvanising after you have welded it in place.

Plus I'm make an effort to float your boat on and off the trailer from now on rather than pushing of/driving on /winching on.

Chris
__________________

__________________
www.northernexposurerescue.org.uk
A registered charity supporting events across England and Wales
Follow us on Vimeo and Facebook
CJL 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 10:47.


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