Closed Thread
 
Thread Tools Search this Thread
 
Old 11 March 2019, 05:17   #31
Member
 
Fender's Avatar
 
Country: UK - England
Make: Zodiac
Length: under 3m
Engine: Scull
Join Date: Dec 2014
Posts: 273
The scenario is you are UK driving licence holder, you willing leave the drivers seat of your vehicle whilst its still running and in gear, whether you have an accident or not if your seen by the plod they would throw the book at you - quite rightly so - not sure the same actions on a boat are any different???

Is it really safe to leave a outboard running, prop spinning and no-one at the controls in a public place - however you sugar coat it??
__________________

__________________
Fender is offline  
Old 11 March 2019, 05:36   #32
Member
 
Country: UK - England
Town: Retford
Boat name: Spy-sea-one
Make: Mercury
Length: 3m +
Engine: Suzuki Outboard/25/4
MMSI: 235074042
Join Date: Oct 2011
Posts: 4,748
risk assess it if it's not for you fair enough, i'll carry on using my experience and common sense plus KILL CORD.normal insurance will have no cover for certain
__________________

__________________
jeffstevens763@g is offline  
Old 11 March 2019, 08:04   #33
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 5,246
To take this back a step to the original question, it seems to me that having the boat in gear while recovering is to deal with a shortcoming of the roller system because the boat will roll away if not held in position. Bunks don't have this issue to the same extent hence my comment about finding rollers to be a nuisance. Similarly when launching, it is possible for the boat to overwhelm one unless steps are taken to take the weight of the boat rolling off the trailer. Again, I find this not to be an issue with the bunked trailer.

I've no doubt that there are occasions when having rollers will assist a recovery because of difficult circumstances so if this is your situation then that is a solution.

Also, the notion of having a load on a trailer on rollers while travelling does seem to me not to be the best way to transport a load!
__________________
JW.
jwalker is offline  
Old 11 March 2019, 09:53   #34
Member
 
Country: UK - England
Town: Nottinghamshire
Make: Mercury Ocean Runner
Length: 4m +
Engine: Mercury F30 EFI
Join Date: Jul 2016
Posts: 181
Jwalker, what we were saying is the opposite. Jeff uses power to keep it in place on his carpet bunks while gpsguru and myself don't when using roller bunks.

When you have flat bunks the boat can move sideways as well as backward. Rollers naturally guide the boat onto the centerline of the trailer, flat bunks do not.

Nothing is done in uncontrolled fashion with a roller trailer because there's little friction. Use the winch launching as well as retrieving. There's usually a front post which you can lasso and tie off when coming in singlehanded to save the boat slipping away if that is needed at all.

It's all moot anyway. If you have a heavy SIB then you have the further disadvantage of flat bunks, otherwise you can enjoy the performance and handling of a rigid hull and have easy loading onto roller bunks.

Btw jw, the better trailers have more rollers spreading the load unlike that cheap one photographed on page 2 of this thread.
__________________
Limecc is offline  
Old 11 March 2019, 11:11   #35
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: 1,997
I've had both bunked and rollers on various trailers and I prefer bunked personally. I've seen several boats slip back off roller trailers and I've seen plenty of hull damage where roller wheels have popped off and axles have dug into gelcoat. Also seen boats damaged when boats boats have sat on rollers flipped into the wrong orientation by wave action. I used to trailer a large cruiser which was too heavy for a roller trailer but a bunked trailer just sneaked in under the 3.5t.
Bunked trailers also usually spread the load along a chine which often has a stringer above so the boat is sat on the strongest part of the hull rather than sat on multiple points
I agree rollers are easier to load on a shallow slip but in my opinion that is their only advantage against several disadvantages
__________________
beamishken is offline  
Old 12 March 2019, 04:11   #36
Member
 
Last Tango's Avatar
 
Country: UK - Scotland
Town: Denny
Boat name: Hebridean Storm
Make: Coastline
Length: 6m +
Engine: Mariner F150
MMSI: 235107505
Join Date: Mar 2013
Posts: 1,346
Quote:
Originally Posted by Fender View Post
The scenario is you are UK driving licence holder, you willing leave the drivers seat of your vehicle whilst its still running and in gear, whether you have an accident or not if your seen by the plod they would throw the book at you - quite rightly so - not sure the same actions on a boat are any different???

Is it really safe to leave a outboard running, prop spinning and no-one at the controls in a public place - however you sugar coat it??
A boat sitting on a trailer is not moving or going to move anywhere.

This is simple.....

The easiest way to reduce risk of injury is to remove people from harms way.
So when no one needs to be on the slip, why have them there.

If you're happy to have your friends/crew/family paddling around behind your car, in front of your trailer, over the edge of the slip, under your car, under your trailer on a slimy boat ramp then crack on. I'm sure "plod" will commend you for you diligence.

As regards Lymington and it's "Harbour nursery-paddling committee"..... unfortunately they didn't make it on to my "places to visit" list anyway so I'll not be loosing any sleep over that.
__________________
Last Tango is offline  
Old 12 March 2019, 04:22   #37
Member
 
Last Tango's Avatar
 
Country: UK - Scotland
Town: Denny
Boat name: Hebridean Storm
Make: Coastline
Length: 6m +
Engine: Mariner F150
MMSI: 235107505
Join Date: Mar 2013
Posts: 1,346
Quote:
Originally Posted by beamishken View Post
I've had both bunked and rollers on various trailers and I prefer bunked personally. I've seen several boats slip back off roller trailers and I've seen plenty of hull damage where roller wheels have popped off and axles have dug into gelcoat. Also seen boats damaged when boats boats have sat on rollers flipped into the wrong orientation by wave action. I used to trailer a large cruiser which was too heavy for a roller trailer but a bunked trailer just sneaked in under the 3.5t.
Bunked trailers also usually spread the load along a chine which often has a stringer above so the boat is sat on the strongest part of the hull rather than sat on multiple points
I agree rollers are easier to load on a shallow slip but in my opinion that is their only advantage against several disadvantages
Similarly had both and I'm now on the roller side. Easier to launch and recover with the caviet that I felt the bunk trailers "centered" the boat better when recovering but the roller definitely easier to launch. However bunks do impose less stress on the hull and I can't dispute any of the other negetive comments about rollers. I've modified mine with silicon adhesive filler under the roller pivots to stop them "flipping" over...been there, got the tea shirt.
__________________
Last Tango is offline  
Old 12 March 2019, 05:02   #38
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: 8,734
RIBase
Ultimately itís each to their own, thereís no right / wrong answer. That said, Iím struggling to see how a bunk can offer better support than a correctly sized/specced/setup roller trailer. RIB hulls arenít linear, they curve in at least 2 if not 3 dimensions. I canít see how a flat plank can offer uniform support along its length. My rollers are all pivoted in 3axis, they conform to the hull shape & distribute the weight evenly.
Just sayin
__________________
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  
Old 12 March 2019, 06:01   #39
Member
 
Country: UK - England
Town: Retford
Boat name: Spy-sea-one
Make: Mercury
Length: 3m +
Engine: Suzuki Outboard/25/4
MMSI: 235074042
Join Date: Oct 2011
Posts: 4,748
Quote:
Originally Posted by Pikey Dave View Post
Ultimately itís each to their own, thereís no right / wrong answer. That said, Iím struggling to see how a bunk can offer better support than a correctly sized/specced/setup roller trailer. RIB hulls arenít linear, they curve in at least 2 if not 3 dimensions. I canít see how a flat plank can offer uniform support along its length. My rollers are all pivoted in 3axis, they conform to the hull shape & distribute the weight evenly.
Just sayin
agree bulk of the boat weight should be on the keel rollers [strongest part of the hull] anyway. side rollers/guide rollers form the cradle to support the boat and lucky in my experience if every side roller touches the hull or to be be more accurate have equal pressure on each roller.same with bunks the keel should have all the weight and the bunks are just the support cradle.
__________________
jeffstevens763@g is offline  
Old 12 March 2019, 06:03   #40
Member
 
Country: Germany
Town: StPetersburg Russia
Boat name: Ocean Devil
Make: Scorpion 8.6m
Length: 8m +
Engine: Yanmar 315hp
MMSI: 211579640
Join Date: Aug 2009
Posts: 528
RIBase
Send a message via Skype™ to Bushrider
Agree with PD & second that .
I love the British roller trailers for the ease of use when launching or recovering .
Trouble to get something close like these trailers in Germany .
Vanclaes build great trailers with their GYRO roller system but they are very pricey ..
__________________

__________________
6 cylinder diesel power
Bushrider is offline  
Closed Thread

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 17:57.


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