Page 51 - SOA 109
P. 51

Improving Piffen



         So far so good! And the AGM engine battery, which is the original of 2003,
         still functions without any problem: even after standing still for months in
         winter the engine starts immediately and joyfully.
         Automatic electric bilge pump
         This  was  advised  in  addition  to  the  manual  Henderson  pump.  I  chose  a
         Whale Supersub Smart 1212 as it fits tightly in the bilge above the propellor
         shaft and I fixed it with a stainless-steel bracket to be sure it will not move.
         It includes a non-return valve and has a capacity of open flow 66 ltr/min, at
         1m head 47 ltrs/min. The switch unit could be mounted in good view near
         the main battery switches next to the cabin steps. After some time, I no-
         ticed that periodically the pump should be run for some time with fresh
         water in order to prevent it clogging up with algae.

         Feathering propeller















         After the 3-blade propeller had been cleaned with quite aggressive stuff by
         a mechanic who happened to be around, a small crack from the centre of
         the prop became visible. Maybe nothing to be worried about, but I thought
         it better to replace it – and took the opportunity to upgrade to a feathering
         propeller. Such a propeller is supposed to make a noticeable difference in
         speed under sail, especially with less than average winds. Despite reading
         test reports and speaking to people who had made the same change it was
         difficult to see how much difference I could expect – maybe 0.5 - 0.8 knots
         depending on circumstances. I chose a 18" 3-blade Darglow Featherstream
         propeller,  adapted  to  Piffen’s  engine  and  gear  box  and  her  cruising  and
         maximum speeds. Mounting the propeller requires really careful work, fol-

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