Help from the gurus
Submitted: Sunday, Sep 14, 2008 at 12:59
ThreadID:
61655
Views:
2831
Replies:
5
FollowUps:
9
This Thread has been Archived
Member - Nev (TAS)
Hi all,
Can anyone please advise me what advantages/disadvantages of single/dual axle trailers. I am thinking would it be better to have say a 16 ft dual axle trailer/caravan or a 16 ft single axle unit. My thoughts are;
1. the dual unit would possible be better to tow as if set-up properly you should be mainly pulling it not carrying and pulling it as most often happens with a single axle unit.
2. A tyre blow-out should not be as disastrous in a dual.
3. Bigger heavy load area across the two axles.
4. Dual axle units probably harder to back into tight spaces.
5. Dual axle units more costly to tow?
Any ideas or thoughts appreciated.
Nev.
Reply By: Member - Mark G (NSW) - Sunday, Sep 14, 2008 at 13:07
Sunday, Sep 14, 2008 at 13:07
NEV
gday mate,
2. you are right on this
3.also correct
4. 2 axles dont get away from you backing like 1 will
5. this is more than likely right also owing to more tyres on the road.
hope this helps,cheers.
AnswerID:
325233
Follow Up By: Member - JohnR (Vic) - Sunday, Sep 14, 2008 at 18:53
Sunday, Sep 14, 2008 at 18:53
Mark, please explain what you mean?
quote " 2 axles dont get away from you backing like 1 will"
FollowupID:
592381
Follow Up By: Dave(NSW) - Sunday, Sep 14, 2008 at 23:33
Sunday, Sep 14, 2008 at 23:33
JohnR,
I think you will find Mark means that a duel axle trailer turns slower than a single axle making it easier to chase when reversing.
Cheers Dave...
FollowupID:
592439
Follow Up By: Nomadic Navara - Sunday, Sep 14, 2008 at 23:59
Sunday, Sep 14, 2008 at 23:59
Dual trailers are only easier than single axle ones as they are generally longer. The thing that makes trailers easier for reverse is having a longer distance from the coupling to the axle (or the centre of the axle group for multi axle trailers.)
PeterD
FollowupID:
592440
Follow Up By: Member - Mark G (NSW) - Tuesday, Sep 16, 2008 at 20:31
Tuesday, Sep 16, 2008 at 20:31
gday guys
sorry for the late reply but ive been interstate. Daves' got it in one,2 axles are much slower to turn than 1,cheers.
FollowupID:
592672
Follow Up By: Member - JohnR (Vic) - Tuesday, Sep 16, 2008 at 21:23
Tuesday, Sep 16, 2008 at 21:23
I think Nomadic Navara is the closest to the point, but Mark's original comment shrouded the information. Dave's point doesn't say but the axles drag against one another which slow down the reversing.
I reversed our Karavan into an EO members back yard just using the mirrors after walking the entry. He just shook his head and said that I did it so easily as I had automatic transmission. He has a GQ manual. I also used low range and that allowed me to place
wheels precisely. The yard was blind with high galvanised fences and gates.
Plenty of farmyard practice. Just like backing up around blocked roads at malls in
Alice Springs a month ago. Know where your clearance points are.
FollowupID:
592683
Reply By: Gazal Champion - Sunday, Sep 14, 2008 at 13:11
Sunday, Sep 14, 2008 at 13:11
Hi Nev,
All the reasons you have stated in your questions are the very same reasons which led me to purchase a dual axle caravan when buying our latest van. For many years we had a single axle van and often found that when I got a flat tyre, before I had realised and stopped to check it, the tyre had shredded itself.
Now have the new (second hand) van which is 18.5 foot inside and find it a dream to tow. backing is not a problem even into tight
places. It is hard to move around by hand though but then I dont move it by hand, I use the cruiser.
Regards,
Gazal.
| At home and at ease on a track that I know not and
restless and lost on a track that I know. HL.Lifetime Member My Profile Send Message |
AnswerID:
325234
Reply By: Neil & Pauline - Sunday, Sep 14, 2008 at 15:27
Sunday, Sep 14, 2008 at 15:27
Nev
Dual axles are more stable, less prone to sway as the tyres want to stay straight. I have noticed a difference between two vans in that the further the axles are apart the more stable the van.
Neil
AnswerID:
325247
Follow Up By: Member - JohnR (Vic) - Sunday, Sep 14, 2008 at 19:01
Sunday, Sep 14, 2008 at 19:01
Neil, we have a trailer that is a weight carrying trailer that has the two axles a reasonable distance apart.
You are right that the tyres want to steer fairly straight - right to the extent it has put the towing vehicle through a fence and tries to put it off the road so braking has to be done very early. I would rather have the axles closer than this is currently!
I have a single axle 2T van that tows very
well and has great road contact area.
FollowupID:
592388
Follow Up By: Member - Nev (TAS) - Sunday, Sep 14, 2008 at 19:29
Sunday, Sep 14, 2008 at 19:29
Hi John,
Do the tyres tend to scrub out quickly? I would think that in a really twisty situation they would scrub a bit and possibly get warm as the back tyres would tend to fight the front ones especially when cornering. The further apart the worse it would be I would think.
Rgds
Nev
FollowupID:
592397
Follow Up By: Member - JohnR (Vic) - Tuesday, Sep 16, 2008 at 21:33
Tuesday, Sep 16, 2008 at 21:33
Nev, that trailer is a commercial trailer, but isn't trafficed quickly now. The front and rear trailer tyres do fight one-another, and your tow vehicle too. They can push the tow vehicle sideways at the rear point - that includes a tractor with heavily lugged tyres.
Your comment on the distance apart is quite correct. They need to be handled with care. We actually carry
hay on the trailer, several tonnes at a time. With my comment to Neil above, I wanted to point out that the further apart the axles the better as he claimed above, isn't totally logical.
FollowupID:
592690
Reply By: Member - DAZA (QLD) - Sunday, Sep 14, 2008 at 16:52
Sunday, Sep 14, 2008 at 16:52
Hi Nev
Both Single & Dual Axle Caravans have there Pros and Cons,
some people say that Single Axles are easier to Back ect, I dont
have a problem Backing with a Dual Axle, I find the Load Carrying
Capabilities of a Dual Axle is a lot better, plus the Stability is Safer
and allso having Independant Suspensions is good, naturally, the
Bigger Vans require Dual Axle, as far as Towing our Van, you would'nt
know it's behind our truck.
P S. it has better Braking Capabilities to.
Cheers
Daza
AnswerID:
325259
Reply By: Muzzgit [WA] - Monday, Sep 15, 2008 at 01:51
Monday, Sep 15, 2008 at 01:51
The only down side I can see in having a dual axle trailer is when it doesn't have much load on. They tend to shudder around more on corrugations and you will rattle the crap out of what ever you are carrying. But lowering tyre pressures can alleviate that.
A bigger hassle, I think, is not so much one axle or two, but if the draw bar is too short they are a bugger to reverse.
AnswerID:
325342
Follow Up By: Member - JohnR (Vic) - Tuesday, Sep 16, 2008 at 21:35
Tuesday, Sep 16, 2008 at 21:35
Muzz, spot on. The corrugations are a bugger when
the springs are too heavy for the load.
FollowupID:
592691