Downhaul Purchase [Graham Shrimpton]

[Archive]

Graham Shrimpton wrote:

Could someone tell me the biggest downhaul purchase allowed under the class rules?
I have what i believe is the standard 2:1 system, but i have seen some boats at our club running a 4:1 purchase. I know this will not give a massive advantage but it just make the job easier in strong winds.

I have also benn told that the 4:1 system is shown in the old black and yellow High Technics book.

Is this the case?
Interesting eh!

Graham Dart 1595

[Archive]

Bob replied:

We approved a 3-1 downhaul only.
Cheers
Bob

[Archive]

Graham replied:

Hi Bob,
Thanks for the info, does this mean in your terms that we can have a double pulley block at one end and a single pulley block at the other?

This should make 3:1

Anything else is incorrect?

Have a good weekend
Regards
Graham

[Archive]

Bob replied:

As long as there are only 3 spans between the blocks it's OK. Most of us use a standard Dart 15 fitting at the top and a small extra block at the bottom.
Cheers
Bob