Tack line tension.

[JP233]

Currently the pole comes back though the bulkhead in a tube (drainpipe)
The pole comes all the way back as can been seen, meaning when the crew does a viciouse drop the pole cracks them on the knee.

So, I want to stop the pole coming too far back. I couldn't do it when I played with the stopper knot so I think the 2 string way is the way forward.
By all means correct me if I'm wrong.

http://www.uk-cherub.org/forum/index.php?action=dlattach;topic=1859.0;attach=3100;image

[dave_ching]

Hi,
Pole never used to come that far back.
It used to come just through the balk head.
How does the drain pipe work with the return bungees and the tack line through the pole?
Alternatively knee pads

[Tom K]

Would it not be easier to train the crew not to stand in the way?

Less pole out front = reduced pitching moment = faster

[JP233]

She has complained, therefor I shall change it.
I'm replacing the tack line anyway so if I want to change how it works, now is the time to do.

Also more crew space would be nice.

[phil_kirk]

As on Elenor E number's tack line is tied to a saddle bolted to a 8cm diameter 2mm thick disc of carbon or glass which is bonded to the deck.  the kite down haul line is also tied to the same saddle.  I would estimate the loads at 40kg but shock loads from a kite filling could be greater.
Why not use the same tack line arrangement and stretch some bungee over the end of the drain pipe to catch the pole. Equally pre load the pole on the bungee like a cross bow for the hoist. 

[JP233]

Might be having a brain fart moment,
When sailing does the end of the poll have to sit 300mm or less from the snout or have the ability to?

[dave_ching]

ability to