With reference to the attachment of a solent/inner forestay here are my thought for what they are worth.
I have modified my last four boats to incorporate an inner forestay from which to fly a hanked on working jib and storm jib because I too am concerned about poor upwind performance with the genoa. Additionally I want an easy way to set a storm sail and have a backup should the furling gear fail.
Selden make a fitting 517-911-01 which is suitable for 8mm wire. I imagine that your forestay is least 10mm or more but I am sure that 8mm would be fine. I used this set up on my Oceanis 440 which had a 12mm forestay and a 630sq ft genoa. The spar manufacturers, Z Spars specified this fitting for the boat and 8mm wire. It worked well.
The fitting is easily mounted at about 300mm below the masthead and therefore does not require running backstays. On our Sharki I was going to take the lower end to the large mooring cleat but eventually mounted a double folding deck fitting just aft of the cleat which is through bolted to a stainless bracket which is in turn fastened to the dividing bulkhead in the deck locker. It is tensioned with a standard turnbuckle fitted with drop nosed pins. I have used a Seasure quick release tensioner previously but have come to the conclusion that it was not necessary as I tend to set the inner stay up before going offshore and have the working jib hanked on and stowed at deck level ready to hoist.
As far as sheeting goes we have the Barbarossa/Harken genoa cars with the wide aluminium sheave which is wide enough to take two lines. I have both the genoa sheets and jib sheets permanently led through the cars and the jib sheet led though an additional turning block mounted above the original toe rail block.
The sheeting angle on the both working and storm jibs will allow the sheets to be led inboard of the shrouds which may help a little with windward ability although I have not had the opportunity to try this in the real world!
I have fitting instructions in PDF format is you would like a copy.
Sharki 181 Zephyr
From: jjjk12s <email@example.com>
Sent: Monday, 22 August 2011, 21:30
Subject: [Amel] Re: headsail idea
We have an Isomat mast with the solent stay attached to the masthead fitting. The forestay has a Profurl unit.
--- In firstname.lastname@example.org, "Dave_Benjamin" <dave_benjamin@...> wrote:
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