T Foils

[roland_trim]

Next up is the new rudder stock tonight and it poses the following query:

- I have a shiny looking blade that I now don't want to scratch

- Is it worth lining the case with something.

- If I have a lining is there anything I can use that I can laminate in. I'm planning on making the case using the board as a mandrel, with a couple of layers of plastic to give separation.  I'm toying with adding a layer of fabric before the carbon to act as a nice soft layer - but worried it will just soak up the resin and be just as bad.

Any suggestions appreciated.

[Will_Lee]

There is a possibly rudely named thing called jap tape, which is self adhesive and has (possibly rude) ribs on it to allow for non scratchy slidation (rude!).

Noycey may be able to help you out.

[Phil Alderson]

The loop side of velcro works well also, but you have to pack round the blade for the thickness of the velcro, laminate and then glue in with contact adhesvie.

The Jap tape is also excellent but slightly  harder and will mark(but not scratch) a foil

[roland_trim]

Sounds promising.  Which side is the loop side? Are they strong enough to hold the compression?

John lewis sells sheets, I could just laminate onto it and see if it sticks - this way I have the material tonight. Or I could just allow enough packer and push it in after it is cured. Never expected the board to be this shiny, hence the unpreparedness.

[phil_kirk]

I have used jap tape which wont compress and have seen a type of draught excluder used.  both can be stuck on afterwards but you need to pack the mandrel out to make the sleave slightly oversize. a few layers of cereal packet covered in parcel tape could do the job.

[Phil Alderson]

Sounds promising.  Which side is the loop side? Are they strong enough to hold the compression?

The soft side, rather than the hard hook side.

It will compress a little but you need that to be able to get the blade up and down.

[simon_jones]

The other stuff you could try is progrip, which won't mark the foil and also compresses to help a snug fit.

[roland_trim]

The other stuff you could try is progrip, which won't mark the foil and also compresses to help a snug fit.

And we have a winner - see me in the bar next week :-)

[Phil Alderson]

The other stuff you could try is progrip, which won't mark the foil and also compresses to help a snug fit.

It is not very slippy though, I used it on once and could barely get the rudder up or down, ended up ripping it out and replacing with velcro.

[ross_burkin]

Roland, I have loads of progrip left over if you want some.

[simon_jones]

Going sailing tomorow with our slightly reshaped foil. Forcast 15mph and big smiles!

[daryl_wilkinson]

Are we missing a trick by not moving the bottom pintel with our 'T' foil adjustment systems? Or is there too much load on the bottom pintel? A system like the design attached seems very simple to me and easier to fit. What do ya all think?

[Phil Alderson]

I do not see any big reason for it not working.

The advantage of having the adjustment at the top like on aqua, Primal and I think Fuzzy Logic is that the lifting loads from the rudder can be taken by the bottom gudgion and so isolated from the adjustment mechanism.

With your big ram it has to take the lifting loads as well, so the adjustment mechanism needs to be stronger.

[Princey]

The cam on the B1C (still can't bring myself to call her Ronin) is set up this way. Although with no pin, just blocks and string.
I think Pete has had some issues and has had to beef up some of the components but I think it basically works pretty well.
We spent a bit of puzzle time trying to suss the easiest way to push by pulling....and in the end ran out of time so pulling to pull won the day.

[ross_burkin]

Princey, can you remember how the cam system on Fuzzy Logic worked? All that remains is a mini block to the right and a hole to the left of the if the gudgeon.