and another

Ben,

Love the colour <img src="http://www.catsailor.com/forums/images/graemlins/cool.gif" alt="" />

Is it Botany Blue ?

Regards,

Peter

I'll check the lable tonight when coat 2 goes on.
I will look like a smurf after sanding back this coat..
We lost 2kg per hull from changing the deck.
The huls are now 20kg each.

For those needing a good riviter Whitworths have two handed industrial riviters on sale at 34$...

Centre beam weighs 1.45kg plus brackets to fit at either end, 100grams each giving a total of 1.65kg for the center beam assembly, not 4kg.

I note a bracket and short piece of aluminium tube has been refitted, it would weigh 250gms minimum without fasteners so the real weight saving for not having a centre beam is 1.4kgs, definitely not 4kgs.

Darryn
1782

I have also recently weighed a new alu center beam at 1.5 kg.
The old one however was square box tube and was 4kg...
A large difference.

I will attempt to modify the tramp to allow the center beam to run under the tramp and exit through a hole near the rear seaction to allow the bolt rope to mount under the rear beam to deflect water.
Still I belive the debate on making the center beam optional will help older boats in cost and weight factors ways assuming it isn't a crucial part of the mozzie design.
It is about 100$ cheaper to have a 1 peice tramp made over a 2 peice design and there is less rope needed.

Bandit,

2 piece tramp???.....must admit that I ave not seen one of them for many many years and all of us now use 1 piece tramp...looks good and the centre beam can hardly be seen.

the rest I must admit is an interesting read..

David

So is the few pounds you are saving really worth it? I could understand if it was large numbers but we are talking about under 10 pounds here. The difference that will cause would be about the same as one messed up tack, wouldn't you benefit more by just practicing all this time you are trying to save a few pounds?

I don't want this to be offensive, it just is how I see it.

It's a shame you didn't mention the 2-piece tramp earlier. We would have understood better where you were coming from. That explains why you were concerned about the look of the beam - it was a bit puzzling as like David said, the beam is hardly noticeable.

Most of us have forgotten 2-piece tramps even existed. The point is the beam does not affect the size and shape of the tramp at all except there needs to be a small cutout (like a U-shape) at each end.

It's more rare but you can also have the track at the front and lace at the back like this:

Attached is a measurement diagram which I gave to Lindsay to get my tramp made. It has the beam cutout dimensions.

The rear cutout is longer to allow a traveller cleat to be mounted on the beam (and a mainsheet cleat swivel if necessary but I don't use one).

I have made my tramp this way but with a rear bolt rope instead.
I intend to cut a hole instead of the u shape to absorb the sideways load.