Trailer Set up - Page 2

Hightower · 11 July 2008, 15:14

Quote:

Originally Posted by Ian M

No fuel or console, but mine feels about right at present.

You've got it back then Ian? That's great news!

Ian M · 11 July 2008, 19:20

Quote:

Originally Posted by Hightower

You've got it back then Ian? That's great news!

Thanks Andy, Yes its back at last. That's not to say that I have finished with Eurocraft

Chris · 12 July 2008, 17:01

I have taken then weight of the trailer from Dixon Bates website.

http://www.dixonbate.co.uk/powerboat...?PartNo=300805

I guess they are talking about the trailer weight as opposed to its carrying capacity. I will give them a call to find out.

2000KG is the maximum braked trailer weight for my car so I am right on the limit. Feels fine on the road however.

Hightower · 12 July 2008, 20:10

Quote:

Originally Posted by Chris

http://www.dixonbate.co.uk/powerboat...?PartNo=300805

Is this your trailer Chris? I think you'll find that the 1100kgs is the carrying capacity of the trailer. What does the info plate on the trailer say? The trailer weight will be the difference between the load capacity and the gross capacity.

al40 · 13 July 2008, 19:37

Quote:

Originally Posted by Hightower

Is this your trailer Chris? I think you'll find that the 1100kgs is the carrying capacity of the trailer. What does the info plate on the trailer say? The trailer weight will be the difference between the load capacity and the gross capacity.

Yip - 1100KG is capacity - see http://www.dixonbate.co.uk/Powerboat...al+%2F+Leisure)

My r2b49 weighs 350KG so I would guestimate 450 - 500KG for that trailer! Gareth at Dixon bate will be able to tell you in seconds :-)

Erin · 14 July 2008, 13:27

Quote:

Originally Posted by bedajim

Not so sure about that with it rigged and fueled up + trailer

So am I to assume I was supplied by Osprey/DixonBate with an inadequate trailer for the job??

bedajim · 14 July 2008, 13:35

Quote:

Originally Posted by Erin

So am I to assume I was supplied by Osprey/DixonBate with an inadequate trailer for the job??

The only way to tell is to put it on the scales

All I can say is what mine came in at, I used the weighbridge at the local steel tube mill and have all of the print outs etc

I agree it seems alot of kg's when the dry weight is 480kg on the website

Jim

Hightower · 14 July 2008, 19:44

I think you'll find that the dry weight is just the hull. I guess the tubes and know for a fact that console and seats aren't included in the weight. So if thats the case and for me the console and seat bases will add at least 150kg's and with a full tank of fuel (200lt's is about 160kg's), add the engine at 200 kg's, you've get a 1000kg's without any steering, seat cusions or stainless, net alone the batteries, 2 stroke oil and the other 100 items needed to run the boat including the anchor and chain. It all adds up!

Downhilldai · 14 July 2008, 21:49

Quote:

Originally Posted by Hightower

I think you'll find that the dry weight is just the hull. I guess the tubes and know for a fact that console and seats aren't included in the weight. So if thats the case and for me the console and seat bases will add at least 150kg's and with a full tank of fuel (200lt's is about 160kg's), add the engine at 200 kg's, you've get a 1000kg's without any steering, seat cusions or stainless, net alone the batteries, 2 stroke oil and the other 100 items needed to run the boat including the anchor and chain. It all adds up!

It all adds up to how much, Hightower?

Or, haven't you had the chance to visit the weighbridge yet?

Hightower · 14 July 2008, 23:43

Quote:

Originally Posted by Downhilldai

It all adds up to how much, Hightower?

Or, haven't you had the chance to visit the weighbridge yet?

That'll be telling, wouldn't it!

Erin · 25 March 2009, 15:21

Just reviving this thread now that I've calculated my boat weight.

I used the method quoted on another thread which involved weighing the jockey/nose weight, then shifting the boat back a few inches and re-weighing before a few calculations based on distance to axle etc. I did this a few times with different positions of the hull and they all came out at about 1150-1200kg. Add to that the trailer weight of 420kg (as stated on design plate)and we are at about 1600kg +/-.

The trailer axle is specced at 1500kg so it's safe to say the trailer is not really the right one

. I assume the self-weight of the axle could be deducted but I doubt that's going to be anything like 100kgs+ so it'll still be over. If i'd bought the boat fully rigged from Osprey I'd be having words. As it was part home built, I will accept responsibility for not checking. However, it would have been nice to have been advised when trailers were discussed.

Richard Selman · 25 March 2009, 16:33

The extrapolation error in your method must be quite large - more than the 6% I would guess. I would find a weighbridge if you are concerned.

Richard

Downhilldai · 25 March 2009, 18:08

[QUOTE=Erin;287623
The trailer axle is specced at 1500kg so it's safe to say the trailer is not really the right one

. [/QUOTE]

Yes, it will be heavier than 1500kg with fuel.

Erin · 25 March 2009, 23:13

Quote:

Originally Posted by Richard Selman

The extrapolation error in your method must be quite large - more than the 6% I would guess.
Richard

I guess the fact it's not a uniformly distributed load would also affect the accuracy.

Boat had 30% fuel load, so there'd be another 100kg+ to add if fully fueled.

Erin · 19 April 2011, 21:05

I was going to run a guess the weight competition, but to cut to the chase I'll save you the bother.

Moseyed up to the quarry weighbridge earlier this week and put the boat and trailer on the scales. Came out at 1620kg, which makes my earlier guestimate in this thread pretty damned accurate. This puts the boat itself with 30% fuel load at 1120kg +/-. Interesting, and not too bad compared to some quoted weights.

Downhilldai · 19 April 2011, 23:12

How much fuel was included in the 1620kg?

kubcat · 30 April 2011, 07:33

Quote:

Originally Posted by captnjack

I think you need more rollers than that. I don't know what their capacity is but its less than a bunk and you have very little support under there right now. Both the front and rear set should be 1.5 to 2x longer IMO. Only THEN the front set extend a bit more forward on the hull. But just moving the forward set up is going to leave a huge unsupported gap in between.

+1 for a lot more rollers, but I guess the roads in Australia are nowhere near as smooth as they are over there.

I have been told by a fibreglasser friend of mine that if you don't spread the load of the boat sufficiently, over time the fibreglass gets little dimples where the rollers are. This has also been raised on the other forum I frequent offshoreonly.com which is US based and usually deals with much bigger heavier boats. Personally for the cost of rollers, I would add a few more.

Jonny2488 · 21 May 2011, 20:09

Quote:

Originally Posted by Erin

I used the method quoted on another thread which involved weighing the jockey/nose weight, then shifting the boat back a few inches and re-weighing before a few calculations based on distance to axle etc.

Any chance you might be able to explain how you did this please as I'm interested to know?

Thanks.

Erin · 22 May 2011, 11:00

Quote:

Originally Posted by Downhilldai

How much fuel was included in the 1620kg?

1/3 of a tank so about 70 or 80 litres.

Quote:

Originally Posted by Jonny2488

Any chance you might be able to explain how you did this please as I'm interested to know?

Thanks.

see Polwart's post here