Reply
 
Thread Tools Search this Thread
 
Old 26 January 2011, 13:20   #1
Member
 
Bigmuz7's Avatar
 
Country: UK - Scotland
Town: Glasgow
Boat name: stramash
Make: Tornado
Length: 5m +
Engine: Etec 90
Join Date: Feb 2006
Posts: 5,068
Lifting 5.4 Tornado off trailer

I want to sort out the rollers on my trailer and want to lift the boat off, and place it in the corner of my shop whilst I undertake repairs, currently the tubes are flat, theres only a central jockey on her and a YAM 75, I have loads of webbing straps, about 5" wide I can put under the hull and plenty of power to lift her off, should I pump up the tubes first ?, or will they deform too much ... or would it put too much strain on the edges of the hull when I lift if I didnt ?

Worst case I could push it off, but that involves faffing about with loads of protection on the concrete floor .. I dont have any lifting spreader bars or anything, but plenty of height , so the straps wont be pulled together when the load comes on.

What do you guys think ?
__________________

__________________
Bigmuz7 is offline   Reply With Quote
Old 26 January 2011, 13:29   #2
Member
 
Vandad's Avatar
 
Country: UK - England
Town: London
Make: Ribcraft
Length: 8m +
Engine: 250hp
Join Date: Jan 2011
Posts: 196
This rib should not be too heavy to push, I did push my Humber 5m on the floor once! What you should do is to put a carpet (buy some thick carpets before pushing the boat) and then you can even move the boat in your shop easily without damaging the hull.

I would not inflate the tubes...
__________________

__________________
Vandad is offline   Reply With Quote
Old 26 January 2011, 13:31   #3
RIBnet supporter
 
Jizm's Avatar
 
Country: UK - England
Town: Southampton
Boat name: Hissing Sid
Make: Ross Smith Cobra
Length: 6m +
Engine: 200HP Optimax
MMSI: 235038046
Join Date: Jun 2002
Posts: 3,803
Why not build acouple of wooden trestles/bunks to put her on while she's off the trailer?
Jizm is offline   Reply With Quote
Old 26 January 2011, 13:47   #4
Member
 
Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
Engine: Toh1 3,5 Yam 90/2S
Join Date: Oct 2009
Posts: 909
I had some time a go a similar problem, to get the SR of the trailer.
I built this" http://rib.net/forum/showthread.php?...ghlight=cradle ", did not take long time. Can be used again case needed.

I used only the trailer winch and elbow grease to get here of the trailer and on to the "cradle". Fastened the stern with a rope and "dragged "the trailer away to keep it in position on the cradle when sliding down from the trailer. With one or two helping hand don't think rope is needed.

Would keep air in the tubes, guess the hull is stiffer that way?
__________________
fun on a boat is inversely proportional to size...sort of anyway
C-NUMB is offline   Reply With Quote
Old 26 January 2011, 13:55   #5
Member
 
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,869
I used to lift the 6.5m off with of 5t ratchet straps and a trolley jack under the planing pad.
Attached Thumbnails
Click image for larger version

Name:	boat prep. 001.jpg
Views:	173
Size:	85.9 KB
ID:	56739   Click image for larger version

Name:	boat prep. 002.jpg
Views:	191
Size:	104.6 KB
ID:	56740   Click image for larger version

Name:	boat prep. 003.jpg
Views:	177
Size:	108.4 KB
ID:	56741  
__________________
Mollers is offline   Reply With Quote
Old 26 January 2011, 14:03   #6
Member
 
martini's Avatar
 
Country: UK - Channel Islands
Town: jersey
Boat name: Martini II
Make: Arctic 28/FC470
Length: 8m +
Engine: twin 225Opti/50hp 2t
MMSI: 235067688
Join Date: Jun 2005
Posts: 3,023
Quote:
Originally Posted by Mollers View Post
I used to lift the 6.5m off with of 5t ratchet straps and a trolley jack under the planing pad.
Lol where there's a will there's a way
__________________
martini is offline   Reply With Quote
Old 26 January 2011, 14:04   #7
Member
 
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,869
Quote:
Originally Posted by martini View Post
Lol where there's a will there's a way
Cornish stylie.
__________________
Mollers is offline   Reply With Quote
Old 26 January 2011, 15:17   #8
Member
 
ribraff's Avatar
 
Country: UK - England
Town: Dartmouth
Length: 6m +
Join Date: Feb 2003
Posts: 1,218
Can you not use the winch and put it down on to some tyres? Pull the strap right out, around the axle and back up to the bow eye and winch away. If the rollers are OK you can drop it on to some tyres, it's easiest to have the trailer on the tow hitch if possible.
__________________
Hypalon Tubes built in-house,retubing, repairs, Accessories
www.ribtube.co.uk
ribraff is offline   Reply With Quote
Old 26 January 2011, 17:05   #9
Member
 
Bigmuz7's Avatar
 
Country: UK - Scotland
Town: Glasgow
Boat name: stramash
Make: Tornado
Length: 5m +
Engine: Etec 90
Join Date: Feb 2006
Posts: 5,068
Quote:
Originally Posted by ribraff View Post
If the rollers are OK you can drop it on to some tyres, it's easiest to have the trailer on the tow hitch if possible.
Thats the problem its the rollers , or their retaining washers that are the problem, I only just got it back on last time




Quote:
Originally Posted by Mollers View Post
I used to lift the 6.5m off with of 5t ratchet straps and a trolley jack under the planing pad.
Arr.... I hope thy Agric shed builder factored in a 6m RIB when designing the roof/support loading


Dont worry chaps It'll come off one way or t'other, just didnt want to crush the hull at a weak point at the sides , dont think theres that much weight in it anyway but it aint a new boat, and the glass might be a bit more brittle at the edges
__________________
Bigmuz7 is offline   Reply With Quote
Old 26 January 2011, 17:07   #10
Member
 
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,869
Quote:
Originally Posted by Bigmuz7 View Post

Arr.... I hope thy Agric shed builder factored in a 6m RIB when designing the roof/support loading
Snow loading I think they call it.
__________________
Mollers is offline   Reply With Quote
Old 26 January 2011, 17:09   #11
Member
 
ashbypower's Avatar
 
Country: UK - England
Town: Salisbury
Boat name: Blue C
Make: XS 600
Length: 6m +
Engine: 125hp Opti
MMSI: 235082826/235909566
Join Date: Jan 2004
Posts: 1,439
Why not rig the straps with a spreader, to reduce the angle fron the flange and lifting point on whatever your lifting with.. leave the tubes deflated ,
__________________
Brian C
APS Marine Centre
ashbypower is offline   Reply With Quote
Old 26 January 2011, 18:10   #12
RIBnet supporter
 
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: 9,235
RIBase
I have a couple of eyebolts set into the concrete floor behind the boat, to get the boat off the trailer I attach ratchet straps to the towing eyes on the stern & to the eyebolts & slowly pull the trailer out from under the boat. As the trailer pulls forward I chock up the hull on timbers behind the trailer. Getting the boat back on is basically a reversal of the operation. Use the winch to pull the trailer back under, removing the chocks as you go. Simples!!
__________________
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 27 January 2011, 04:50   #13
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,650
Quote:
Originally Posted by ribraff View Post
Can you not use the winch and put it down on to some tyres?
Wot I did.

Granted my hull at the time was covered in a 4" thick multiple layers of antifoul (slight exaggeration, but you get the picture! ) so I wasnlt too concerned about what it landed on. Next time I would use carpet. (A/F now removed & it's all shiny & polished)


On a more helpful note, there will be a point where the whole trailer will tip back, at which point you put the capet / tyres / foam / whatever under the transom, and that is the time to get a couple of tyres / blocks of wood under the hull to stop it tipping. Then as described in the previous posts.

To get it back on, the first bit is a pain, as you need to either lift the bow onto the rollers or lift the hitch to drop the rollers to the bow. Then use one hand to hold the trailer nose up, winch with the other (no real winch load at this point). Once you can't turn the winch with one hand above your head (!) the riollers should have properly engaged with the hull, and you may find the weight of the trailer will flatten it out and lift the bow clear of the ground. Then it's a simpkle case of winching with due caution.

Spreader bar - I built one from wood for my open trailer to prevent the sides getting bent in when I carried stuff that needed weird ratchet strap angles. Bit of sizeable timber, and use a couple of ply offcuts to create "jaws" to locate the spreader on the stap.
__________________
9D280 is offline   Reply With Quote
Old 27 January 2011, 13:48   #14
Member
 
Country: UK - Wales
Town: west wales
Make: humber destroyer 5m
Length: 5m +
Engine: 90 yamaha
Join Date: Apr 2010
Posts: 202
We tip ribs off on to car tyres all the time,just put three or four tyres in a row,tip the trailer up so that the bottom of the transom sits in the furthest one then give the boat a shove and keeping the trailer lifted pay the winch strap out as she slides off,if the rollers are shot then get a couple of guys to lift her as you pull the trailer out,put the rest of the tyres in place as you go,most of the weight is in the engine anyway.
I can do this to a 5m humber with a 70 on my own so its more to do with technique than strength.
Important to keep the winch strap on and pay it out slowly or it will go with a rush and then you can hurt yourself.
__________________
bosun is offline   Reply With Quote
Old 28 January 2011, 17:47   #15
Member
 
Country: UK - England
Town: Northumberland
Boat name: Dr Doof
Make: Humber
Length: 6m +
Engine: Mercury 125hp
MMSI: 235082981
Join Date: Oct 2010
Posts: 297
Ebay

Seen this on ebay earlier.

Don't know if it would be any good for what you want to do?
http://cgi.ebay.co.uk/Rib-Boat-Stand...#ht_500wt_1156
__________________

__________________
Dr Doof 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 23:48.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×