Reply
 
Thread Tools Search this Thread
 
Old 13 March 2012, 16:12   #1
Member
 
Country: UK - England
Town: Solent
Make: Phantom 21
Length: 5m +
Engine: Mariner 200hp V6
Join Date: Feb 2008
Posts: 138
How much nose weight do you tow with?!

Do correct me if I'm wrong but as far as I'm aware, generally, the ideal nose weight is ballpark 50kg ish?? But I always wonder how many wary drivers towing trailers actually pay attention to nose weight. I often see cars with their rear wheels so far up into their arches you can barely see the top half of the wheel!!

How much nose weight do you like to tow with? And apart from the loading on the car's rear axle, what effects how much nose weight you should have?
__________________

__________________
Jonny2488 is offline   Reply With Quote
Old 13 March 2012, 16:22   #2
Member
 
mick's Avatar
 
Country: UK - England
Town: Wakefield
Boat name: Bouncer
Make: Redbay Stormforce
Length: 6m +
Engine: 2x Honda 90Hp
MMSI: 235025718
Join Date: Jun 2009
Posts: 4,023
About 150 kg for me.
__________________

__________________
mick is offline   Reply With Quote
Old 13 March 2012, 16:42   #3
Member
 
Country: UK - England
Town: Solent
Make: Phantom 21
Length: 5m +
Engine: Mariner 200hp V6
Join Date: Feb 2008
Posts: 138
Quote:
Originally Posted by discomick View Post
About 150 kg for me.
Towing vehicle??
__________________
Jonny2488 is offline   Reply With Quote
Old 13 March 2012, 16:44   #4
Member
 
mick's Avatar
 
Country: UK - England
Town: Wakefield
Boat name: Bouncer
Make: Redbay Stormforce
Length: 6m +
Engine: 2x Honda 90Hp
MMSI: 235025718
Join Date: Jun 2009
Posts: 4,023
Defender or Disco 4
__________________
mick is offline   Reply With Quote
Old 13 March 2012, 16:45   #5
RIBnet supporter
 
Chris Caton's Avatar
 
Country: UK - England
Town: Wirral & Caernarfon
Boat name: That's Enuff
Make: Revenger & Avon SR4
Length: 7m +
Engine: Honda 150HP & 50HP
Join Date: Jul 2011
Posts: 4,293
depends what your towing and what your towing with, but always better with nose weight, once saw a trailer unhooked on a beech that needed both crew to keep the jockey wheel on the sand
__________________
Chris Caton is offline   Reply With Quote
Old 13 March 2012, 16:46   #6
Member
 
Erin's Avatar
 
Country: UK - Channel Islands
Town: A large rock
Boat name: La Frette
Make: Osprey Vipermax
Length: 6m +
Engine: 200 Suzzy
Join Date: May 2004
Posts: 2,853
Quote:
Originally Posted by Jonny2488 View Post
Towing vehicle??
It's in his name

I adjusted my axles to get about 75kg. My Jeep manual says up to 100kg and the Bradley hitch has something like 120kg stamped on it IIRC. I bought the boat without an engine and my first trip was 200+ miles down the motorway with probably 200kg or so which nearly made the back of my A3 scrape the ground
Erin is offline   Reply With Quote
Old 13 March 2012, 16:49   #7
Member
 
kubcat's Avatar
 
Country: Australia
Town: Sydney
Boat name: Lunasea
Make: Ribtec 890SX
Length: 8m +
Engine: Yamaha ME 421STI x 2
Join Date: Aug 2009
Posts: 472
I tow quite a few largish trailers for work and from what I have learnt over the years, the weight on the tow bar should be 5%-10%. 5% is what we use on the bigger trailers say 3500kg and closer to 10% on the very light trailers.

I am pretty sure these figures come from the Australian registration authorities but can't find a link right now. Either way, In my opinion they tow much better in this range.
__________________
kubcat is offline   Reply With Quote
Old 13 March 2012, 16:52   #8
Member
 
mick's Avatar
 
Country: UK - England
Town: Wakefield
Boat name: Bouncer
Make: Redbay Stormforce
Length: 6m +
Engine: 2x Honda 90Hp
MMSI: 235025718
Join Date: Jun 2009
Posts: 4,023
I have never checked it with either the tintent or the rib but they sit well and tow well so must be something like.
__________________
mick is offline   Reply With Quote
Old 13 March 2012, 20:47   #9
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Quote:
Originally Posted by kubcat View Post
the weight on the tow bar should be 5%-10%. 5% is what we use on the bigger trailers say 3500kg and closer to 10% on the very light trailers.

I am pretty sure these figures come from the Australian registration authorities but can't find a link right now.
Pretty standard rule of thumb worldwide I think.

Too little tongue weight may cause trailer sway (fishtailing of the trailer - disconcerting at best, dangerous at worst.)

Too much tongue weight causes excessive squat on the tow vehicle, and may lighten up the front wheels enough to affect steering.

jky
__________________
jyasaki is offline   Reply With Quote
Old 14 March 2012, 00:12   #10
Member
 
Leapy's Avatar
 
Country: UK - England
Town: Sheepy Parva
Boat name: Sadly Sold
Length: no boat
Join Date: Sep 2008
Posts: 1,728
.....
__________________
Leapy is offline   Reply With Quote
Old 14 March 2012, 00:20   #11
Member
 
Leapy's Avatar
 
Country: UK - England
Town: Sheepy Parva
Boat name: Sadly Sold
Length: no boat
Join Date: Sep 2008
Posts: 1,728
.....
__________________
Leapy is offline   Reply With Quote
Old 14 March 2012, 02:21   #12
Member
 
mick's Avatar
 
Country: UK - England
Town: Wakefield
Boat name: Bouncer
Make: Redbay Stormforce
Length: 6m +
Engine: 2x Honda 90Hp
MMSI: 235025718
Join Date: Jun 2009
Posts: 4,023
Quote:
Originally Posted by discomick
I have never checked it with either the tintent or the rib but they sit well and tow well so must be something like.
I'd better mention before someone jumps down my throat 150 kg is what I can go up to with the motors but never get up to the max
__________________
mick is offline   Reply With Quote
Old 14 March 2012, 02:24   #13
Member
 
Leapy's Avatar
 
Country: UK - England
Town: Sheepy Parva
Boat name: Sadly Sold
Length: no boat
Join Date: Sep 2008
Posts: 1,728
Quote:
Originally Posted by discomick View Post
I'd better mention before someone jumps down my throat 150 kg is what I can go up to with the motors but never get up to the max
Oh good. Hence my ..... & .....

I was confused by your two posts, couldn't find the right words at 5am, so gave up
__________________
Leapy is offline   Reply With Quote
Old 14 March 2012, 02:32   #14
Member
 
Country: UK - Scotland
Town: Glasgow
Boat name: snagglepuss
Make: Shetland
Length: 6m +
Engine: 90 hp Outboard
Join Date: Nov 2011
Posts: 562
10-15% of the trailer weight so for everything we tow we can just about lift it on. Not sure I would tow with much more than that just in case anything went wrong and we have seen to many bent jockey wheels on clients trailers to rely on them.

Dave
__________________
clydeoutboards is offline   Reply With Quote
Old 14 March 2012, 03:11   #15
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: Tohatsu 30HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 11,061
Quote:
Originally Posted by clydeoutboards
10-15% of the trailer weight so for everything we tow we can just about lift it on. Not sure I would tow with much more than that just in case anything went wrong and we have seen to many bent jockey wheels on clients trailers to rely on them.

Dave
Do you mean trailer weight including load? So 350-525kg for 3500kg trailer?
__________________
Poly is offline   Reply With Quote
Old 14 March 2012, 03:31   #16
Member
 
Leapy's Avatar
 
Country: UK - England
Town: Sheepy Parva
Boat name: Sadly Sold
Length: no boat
Join Date: Sep 2008
Posts: 1,728
I think there's some care needed here...within the vehicle handbook will be a recommended nose weight figure. Typically, this is between 50 and 75kg. Some vehicles - like LR's - will take more with the LR tow bar, but this is not the norm.

Towbars themselves will be individually rated. This should be stamped or labelled on the tow bar or identified in the tow bar handbook or should be available from the manufacturer.

Ditto trailers. The trailer manufacturer or the hitch manufacturer will usually specify a maximum nose weight figure.

Some towing websites offer advice. The NTTA says "at least 50kg"...Caravan Wise says 7% of the loaded weight of your trailer...for me, both of these are potentially misleading.

I do not believe there to be a one-size-fits-all rule. Each set up needs to be a function of the vehicle, the tow bar and trailer/load to be carried and you should use information from the manufacturer of all these bits to work out what's what. Personally, using a RRS or D4 to tow a approx 1.5tonne RIB & trailer I always aim for around 70kg. You can crudely check this with the bathroom scales under the jockey wheel: it's not precise, but it gives an indication. If you want to be more accurate than that then you'll be down the local weighbridge.
__________________
Leapy is offline   Reply With Quote
Old 14 March 2012, 07:04   #17
Member
 
Country: Ireland
Town: Dun Laoghaire
Length: 6m +
Join Date: Feb 2007
Posts: 86
Quote:
Originally Posted by Leapy View Post
I think there's some care needed here...within the vehicle handbook will be a recommended nose weight figure. Typically, this is between 50 and 75kg. Some vehicles - like LR's - will take more with the LR tow bar, but this is not the norm.

Towbars themselves will be individually rated. This should be stamped or labelled on the tow bar or identified in the tow bar handbook or should be available from the manufacturer.

Ditto trailers. The trailer manufacturer or the hitch manufacturer will usually specify a maximum nose weight figure.

Some towing websites offer advice. The NTTA says "at least 50kg"...Caravan Wise says 7% of the loaded weight of your trailer...for me, both of these are potentially misleading.

I do not believe there to be a one-size-fits-all rule. Each set up needs to be a function of the vehicle, the tow bar and trailer/load to be carried and you should use information from the manufacturer of all these bits to work out what's what. Personally, using a RRS or D4 to tow a approx 1.5tonne RIB & trailer I always aim for around 70kg. You can crudely check this with the bathroom scales under the jockey wheel: it's not precise, but it gives an indication. If you want to be more accurate than that then you'll be down the local weighbridge.
x 2...

I am still really surprised when is see some clowns with road rollers and mini diggers at the front of trailers so they have 350 - 500kgs on the Ball hitch!

It just shows just how strong some towing brackets actually are!
__________________
Tino is offline   Reply With Quote
Old 14 March 2012, 07:41   #18
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
Wot Leapy said....

At the other end of the scale my old Laser was something like 8Kg on the hich. On a rig like that the aero drag is way more significant than mass - the whole thing including boat weighed about 130Kg with a CoG about 18" off the road.

I've towed a dinghy trailer where they sit upside down on bars above a box. Above 40MPH, if the boat isn't dead inline with the trailer drawbar, the boat falls in line astern & the trailer crabs along sideways underneath it...... Drop below about 40, boat goes squint, trailer drops back inline.

2 tons of machinery on the other hand.....
__________________
9D280 is offline   Reply With Quote
Old 15 March 2012, 07:11   #19
Member
 
Country: UK - England
Town: Solent
Make: Phantom 21
Length: 5m +
Engine: Mariner 200hp V6
Join Date: Feb 2008
Posts: 138
So what difference is 50kg of nose weight compared to 150kg of nose weight going to make to how well and safely the trailer tows?? If one was to reduce the nose weight a bit, is snaking likely to occur while you've still got positive nose weight?
__________________
Jonny2488 is offline   Reply With Quote
Old 15 March 2012, 07:21   #20
Member
 
Country: UK - England
Town: Northampton
Make: RibTec
Length: 5m +
Engine: Outbaord mariner 75
Join Date: Apr 2011
Posts: 506
in my experience the less nose weight will cause snaking.
some kind person put 4 dive cylinders at the back of a boat I was towing. could not go above 45 with out it snaking violently.
removed said cylinders and towed at motorway speeds without issues.

You but if you go too far the back end of the car is hitting the ground and ya front wheels are in the air. :-)
__________________

__________________
jezza2011 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 -5. The time now is 01:33.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.