Reply
 
Thread Tools Search this Thread
 
Old 17 March 2022, 18:50   #1
Member
 
Country: UK - England
Town: Budleigh Salterton
Length: 4m +
Join Date: Nov 2018
Posts: 2
Trailer setup shallow slip

Hi All
After a bit of advice on launching my ribtec455 on shallow slips. When I come to a shallow slipway its a right old bugger to push off, managed it a few times on my own but take a lots of puffing/swearing and shoving the boat up and down!! Here are some pics of the trailer setup, I think its a fairly large trailer for the boat (used to be a braked trailer apparently). So any suggestions/ideas about moving rollers or setup of swing bunks? Would towbar extension be the way to go?
Thanks in advance
Tom
Attached Thumbnails
Click image for larger version

Name:	IMG_9515.jpg
Views:	147
Size:	157.5 KB
ID:	140048   Click image for larger version

Name:	IMG_9517.jpg
Views:	171
Size:	173.9 KB
ID:	140049   Click image for larger version

Name:	IMG_9518.jpg
Views:	158
Size:	167.1 KB
ID:	140050   Click image for larger version

Name:	IMG_9519.jpg
Views:	169
Size:	171.6 KB
ID:	140051   Click image for larger version

Name:	IMG_9523.jpg
Views:	146
Size:	150.9 KB
ID:	140052  

__________________

__________________
Tom P is offline   Reply With Quote
Old 17 March 2022, 19:48   #2
Member
 
Rubber-raft2's Avatar
 
Country: UK - N Ireland
Town: Prudenville Michigan, USA
Boat name: its a ? for now
Make: Sea Eagle Sport runa
Length: 3m +
Engine: '71 Evinrude 9.5 2 s
Join Date: Aug 2020
Posts: 13
How about an electric winch up front with a snatch block secured at the rear for the cable to loop and a v-roller at the front to position the cable and let the winch pull it off.
__________________

__________________
We learn more by wondering than by searching
Rubber-raft2 is offline   Reply With Quote
Old 17 March 2022, 22:00   #3
Member
 
Country: UK - England
Town: Nottinghamshire
Make: Ranieri 15
Length: 4m +
Engine: Suzuki DF50
Join Date: Jul 2016
Posts: 1,236
Can you not lower the rear swing beam and move those rollers to an outer chine? Possibly also lifting the front rollers?
__________________
Limecc is offline   Reply With Quote
Old 18 March 2022, 07:55   #4
Member
 
Country: UK - England
Town: Fakenham
Make: Avon Searider
Length: 5m +
Engine: 75hp 2 stroke mercur
Join Date: Sep 2019
Posts: 54
The idea of a roller trailer is that it needs little assistance to roll off and on the trailer. Id suggest that maybe there is something not quite right with one or more of your rollers.

Also, make sure the bow is slightly higher than the stern as this will aid with rolling. With mine, if I release the winch cable, itís already unloading itís self 🤣
__________________
Unknown is offline   Reply With Quote
Old 18 March 2022, 08:06   #5
Member
 
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: reiver 3.8/regal3760
Length: 10m +
Engine: 40hp 2st 2x6lp 315
Join Date: Jul 2009
Posts: 3,154
Quote:
Originally Posted by Limecc View Post
Can you not lower the rear swing beam and move those rollers to an outer chine? Possibly also lifting the front rollers?
Yep a couple of tweaks to the trailer should get the boat wanting to move back, looks to me like the front swing beam is too far back & maybe putting too much weight on those few rollers instead of being evenly distributed. I'd look at moving the front swing beam forward slightly and move the rollers closer together & the rear rollers possibly further apart and down if thats possible.
Quote:
Originally Posted by Unknown View Post
The idea of a roller trailer is that it needs little assistance to roll off and on the trailer. Id suggest that maybe there is something not quite right with one or more of your rollers.

Also, make sure the bow is slightly higher than the stern as this will aid with rolling. With mine, if I release the winch cable, itís already unloading itís self
Yep possibly a few rollers stuck or partially siezed often boats start to roll as soon as you unclip the winch I have to take a bight with the painter on a 5.4m I have or the boat moves before you can unclip the winch strap

Sent from my SM-G950F using RIB Net mobile app
__________________
beamishken is offline   Reply With Quote
Old 18 March 2022, 10:17   #6
Member
 
Iankristy's Avatar
 
Country: UK - Scotland
Town: Scotland
Boat name: Clyde adventurer
Make: Humber
Length: 8m +
Engine: Twin Merc 150 4str
Join Date: May 2015
Posts: 348
Swap the rollers for the hard blue ones, game changer
__________________
Iankristy is offline   Reply With Quote
Old 18 March 2022, 10:51   #7
Member
 
Country: UK - England
Town: suffolk
Boat name: not yet
Make: Nautica/ribcraft
Length: 5m +
Engine: Yam 115/ Honda 100
Join Date: Jan 2015
Posts: 1,037
Looks to me like someone has modified the mini swing arm brackets so you have no height adjustment from from front to back
call extreme trailers they will sell you the bits you need


Heres one i prepared earlier ,hard rollers will also help as ian sugests but i am partial to the orange !
Attached Thumbnails
Click image for larger version

Name:	IMG_20220318_103556_3.jpg
Views:	84
Size:	292.5 KB
ID:	140058  
__________________
Orwell boy is offline   Reply With Quote
Old 18 March 2022, 12:40   #8
Member
 
Country: UK - England
Town: Nottinghamshire
Make: Ranieri 15
Length: 4m +
Engine: Suzuki DF50
Join Date: Jul 2016
Posts: 1,236
Quote:
Originally Posted by beamishken View Post
I'd look at moving the front swing beam forward slightly and move the rollers closer together & the rear rollers possibly further apart and down if thats possible.
Good shout. I'd missed that the front rollers are set too far back. Also on mine I've got a bow roller attached to the drawbar. And look how far forward the front carriages are.

As an aside, I set my snubber higher than Tom's, should help in the event of a car crash. I also fasten the bow down with a strap, not good to rely on just the bow ring, winch or winch post U-bolts.

Quote:
Originally Posted by Orwell boy View Post
Looks to me like someone has modified the mini swing arm brackets so you have no height adjustment from from front to back
To me it looks like those swing brackets are both set the same: ie high. Rear beam can be dropped. The brackets don't have to be vertical on the chassis rail, can be set on an angle and the swing beam will adjust.

Moving the rollers to an outer chine helped a lot. Also with towing stability. Every single U-bolt sheared, I couldn't be bothered cutting the nuts off and they were rusty anyway. Got quite expensive!
Attached Thumbnails
Click image for larger version

Name:	BowRoller.jpg
Views:	91
Size:	119.4 KB
ID:	140059   Click image for larger version

Name:	Before.jpg
Views:	83
Size:	124.6 KB
ID:	140060   Click image for larger version

Name:	After.jpg
Views:	86
Size:	135.6 KB
ID:	140061  
__________________
Limecc is offline   Reply With Quote
Old 18 March 2022, 14:59   #9
Member
 
Country: USA
Town: Dixon
Boat name: "H8 2 Swim"
Make: monaco yachtsman
Length: 4m +
Engine: OB
Join Date: Dec 2021
Posts: 62
Rollers are the way to go. One very inexpensive roller design is a bunk roller. I have used it on several SIBS and RIBS. Slides right off and easy to crank back up with your wench when you don't want to bury the back of your vehicle in the water. They come in 4'-8' lengths. Take a look at some examples here:

https://www.google.com/search?q=bunk...hrome&ie=UTF-8
__________________
GARYSHORT is offline   Reply With Quote
Old 21 March 2022, 19:26   #10
Member
 
Country: UK - England
Town: Budleigh Salterton
Length: 4m +
Join Date: Nov 2018
Posts: 2
Thanks for all the replies and photos, very useful. Will try the front swing foward a bit and rear rollers out some, think I will be the same Limecc and shearing quite a few of them!!
Will price up some of the harder blue rollers Ian

Thanks again everyone
__________________
Tom P is offline   Reply With Quote
Old 22 April 2022, 01:55   #11
Member
 
Country: Australia
Town: Beckenham
Boat name: No Name
Make: Highfield
Length: 3m +
Engine: Outboard Suzuki 30HP
Join Date: Mar 2019
Posts: 143
Hi Tom

Your boat appears far too high on the trailer. So was mine until I was advised to move the axle from under the frame to the top. It looks as if you have enough clearance above your mud guards, but of course measure it first to be sure.
__________________
Salty Pete is offline   Reply With Quote
Old 22 April 2022, 21:00   #12
Member
 
Country: UK - England
Town: suffolk
Boat name: not yet
Make: Nautica/ribcraft
Length: 5m +
Engine: Yam 115/ Honda 100
Join Date: Jan 2015
Posts: 1,037
Quote:
Originally Posted by Salty Pete View Post
Hi Tom

Your boat appears far too high on the trailer. So was mine until I was advised to move the axle from under the frame to the top. It looks as if you have enough clearance above your mud guards, but of course measure it first to be sure.
Picture may be interesting please .
__________________
Orwell boy is offline   Reply With Quote
Old 23 April 2022, 00:13   #13
Member
 
Country: Australia
Town: Beckenham
Boat name: No Name
Make: Highfield
Length: 3m +
Engine: Outboard Suzuki 30HP
Join Date: Mar 2019
Posts: 143
Quote:
Originally Posted by Orwell boy View Post
Picture may be interesting please .
Do you want the full monty or maybe a hat over the tackle?
__________________
Salty Pete is offline   Reply With Quote
Old 23 April 2022, 08:01   #14
Member
 
gtflash's Avatar
 
Country: UK - England
Town: southampton
Boat name: TOP CAT 2
Make: Scorpion 8.1
Length: 8m +
Engine: 250hp HO
Join Date: Aug 2003
Posts: 1,745
Quote:
Originally Posted by Rubber-raft2 View Post
How about an electric winch up front with a snatch block secured at the rear for the cable to loop and a v-roller at the front to position the cable and let the winch pull it off.
I have been trying to work out how to do this myself without pulling the winch strap against the bottom of the boat. Got any pictures or ideas? It seems impossible to me but I also need the ability to help my boat off roller trailer.
__________________
gtflash is offline   Reply With Quote
Old 23 April 2022, 08:12   #15
Member
 
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: 11,079
RIBase
Quote:
Originally Posted by Salty Pete View Post
Do you want the full monty or maybe a hat over the tackle?


__________________
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:https://www.youtube.com/watch?v=unkIVvjZc9Y
Pikey Dave is offline   Reply With Quote
Old 23 April 2022, 10:26   #16
Member
 
Tim M's Avatar
 
Country: France
Town: CŰte d'Azur
Boat name: Beaver Patrol
Make: Avon Searider SR4
Length: 4m +
Join Date: Jan 2004
Posts: 5,926
As already stated, the forward roller cradle is far too far back. Hence all the weight of the front of the boat is sitting on the bow snubber - that'll be why its so hard to shove off. Move the forward cradle further forward which will take the weight off the snubber and you'll have no issues.

Smaller I know but same principle: with the setup below on the slipway the whole boat will roll back without any input from me as soon as I start to unwind the winch strip. Also means I can drive the RIB on and off single handed if thats easier for the situation.
Attached Thumbnails
Click image for larger version

Name:	IMG_8283.jpg
Views:	55
Size:	179.5 KB
ID:	140315  
__________________
Tim M is offline   Reply With Quote
Old 23 April 2022, 15:01   #17
Member
 
Iankristy's Avatar
 
Country: UK - Scotland
Town: Scotland
Boat name: Clyde adventurer
Make: Humber
Length: 8m +
Engine: Twin Merc 150 4str
Join Date: May 2015
Posts: 348
Iíve got a box of hard blue rollers for sale if your interested?
__________________
Iankristy is offline   Reply With Quote
Old 24 April 2022, 02:01   #18
Member
 
Country: Australia
Town: Beckenham
Boat name: No Name
Make: Highfield
Length: 3m +
Engine: Outboard Suzuki 30HP
Join Date: Mar 2019
Posts: 143
I suggested before that changing the axle to above instead of below the frame would lower it. It would but maybe the bottom of the trailer would be too close to the ground.

The trailer looks like it was made for a boat with a deep skeg that is why there is so much clearance between the keel and the trailer frame.

As has already been mentioned the boat is riding too high on the trailer.

The drawbar is long enough and the boat looks like it would float off if it was lower on the trailer.

I feel that the OP needs to get rid of the construction under the rollers but without having the facilities to do it would be difficult. The restricting element is the clearance above the mudguards.

P.S. Does this trailer have springs? I can't see any.
__________________
Salty Pete is offline   Reply With Quote
Old 24 April 2022, 10:27   #19
Member
 
Country: UK - England
Town: suffolk
Boat name: not yet
Make: Nautica/ribcraft
Length: 5m +
Engine: Yam 115/ Honda 100
Join Date: Jan 2015
Posts: 1,037
[QUOTE=Salty Pete;
P.S. Does this trailer have springs? I can't see any.[/QUOTE]

No they,d be under the hat i reckon
__________________
Orwell boy is offline   Reply With Quote
Old 25 April 2022, 01:11   #20
Member
 
Country: Australia
Town: Beckenham
Boat name: No Name
Make: Highfield
Length: 3m +
Engine: Outboard Suzuki 30HP
Join Date: Mar 2019
Posts: 143
Quote:
Originally Posted by Orwell boy View Post
No they,d be under the hat i reckon
Touche
__________________

__________________
Salty Pete 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




All times are GMT. The time now is 01:36.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.