Reply
 
Thread Tools Search this Thread
 
Old 28 February 2008, 14:18   #61
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,850
Quote:
Originally Posted by Hightower View Post
Are there any trailer manufacturers in Hampshire that could manufacture a new custom draw bar? Andy
Yes, see post number 14.

Pete
__________________

__________________
.
Ribnet is best viewed on a computer of some sort
Pete7 is offline   Reply With Quote
Old 28 February 2008, 17:06   #62
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
Sorry Pete, must have missed that one

I'll drop them an email tomorrow and see what they say, I'm hoping for a soloution that I can fit myself.
__________________

__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 28 February 2008, 17:16   #63
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,962
Andy, if you're considering a replacement drawbar, since the trailer is a wee bit flimsy, could you have a drawbar which goes right back to the axle rather than having a crossmember? That would give the whole thing a backbone and you would effectively be directly pulling the axle. A box section with a substantial vertical height would help control the vertical flexing.
__________________
JW.
jwalker is offline   Reply With Quote
Old 28 February 2008, 17:38   #64
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
Quote:
Originally Posted by jwalker View Post
Andy, if you're considering a replacement drawbar, since the trailer is a wee bit flimsy, could you have a drawbar which goes right back to the axle rather than having a crossmember? That would give the whole thing a backbone and you would effectively be directly pulling the axle. A box section with a substantial vertical height would help control the vertical flexing.
This was my thinking too Jeff.

I was going to install a draw bar that is twice as deep as wide, go back to the axle and have either one or two crossmembers, welded to the drawbar and fixed to the sides in the maner that I've already illustrated in my earlier post. The bottom bolt of the front fixing that already exists was going to go through a bushing that is welded into the drawbar to give strength.
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 28 February 2008, 17:42   #65
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,962
Unless you need the crossmembers for supporting the boat rollers, you could do without them if using the axle for attachment.
__________________
JW.
jwalker is offline   Reply With Quote
Old 29 February 2008, 01:42   #66
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
I want these cross members, it's to take the load off the weak, two fixing bolt clamp where the frame sides come together (shown in the photo), it also is to stiffen up the sides of the frame too.
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 29 February 2008, 02:49   #67
Member
 
Country: Ireland
Town: Dun Laoghaire
Length: 6m +
Join Date: Feb 2007
Posts: 86
That looks nasty. Admiral made thousands of trailers. The fault could be with the way the boat is loaded..ie the set up of the trailer axles , Sampson post.

Lots of good suggestions but for your safety and that of other road users i would recommend that you unbolt the offending bent piece of steel and have an expert to build you another one. Adding weight to the front of the trailer will cause it to be incorrectly balanced making it nose heavy. Mind you this can be rectified by moving the Axle forward but this will make the overhang longer making the lever longer so the bending force will get worse. I would also suggest that you ask a boat trailer expert to have a look to see if the axle is set up in the right place to balance the trailer.

I have seen this many times before..roller trailers really need lots more thought.

The steel in the trailer has been very seriously weakened and if not repaired properly your precious boat may overtake you sometime!

Good luck
Tino
__________________
Tino is offline   Reply With Quote
Old 29 February 2008, 03:13   #68
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
Quote:
Originally Posted by Tino View Post
That looks nasty. Admiral made thousands of trailers. The fault could be with the way the boat is loaded..ie the set up of the trailer axles , Sampson post.

Lots of good suggestions but for your safety and that of other road users i would recommend that you unbolt the offending bent piece of steel and have an expert to build you another one. Adding weight to the front of the trailer will cause it to be incorrectly balanced making it nose heavy. Mind you this can be rectified by moving the Axle forward but this will make the overhang longer making the lever longer so the bending force will get worse. I would also suggest that you ask a boat trailer expert to have a look to see if the axle is set up in the right place to balance the trailer.

I have seen this many times before..roller trailers really need lots more thought.

The steel in the trailer has been very seriously weakened and if not repaired properly your precious boat may overtake you sometime!

Good luck
Tino
Yes, I am planning to get the drawbar professionally made. But I doubt that fitting this drawbar will really have too much effect on nose weight, one thing I could do (and I'll have to do some working out) is to make the drawbar longer so that I can move the axle backwards, thus reducing the lever effect on launch and recovery, however this increases the loaded weight on that area, so I have to be carefull.
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 29 February 2008, 10:59   #69
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
I have spoken to Ge Graff trailers and several other leading makes of boat trailers, they all seem unwilling to help me in this modification, so is there anyone else I could try?
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 29 February 2008, 11:28   #70
Member
 
Country: UK - England
Town: Bristol
Length: 5m +
Join Date: Mar 2006
Posts: 338
Don't know if these people do bespoke work:

http://www.samspeedmarine.com/trailers/severnValley/

Orve.
__________________

__________________
David G 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 23:54.


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