Autopilot
16 June 2019 | 40 Miles North of Stanley, Tasmania
Day 10 12 Noon Monday 17th June 2019
Through last night and all of this morning the wind has been remarkably steady, just ever so gradually increasing and veering slowly from NW to NNW from a light six knots to now bowling us along with a true wind speed of 13 knots under full main and jib. A strong wind warning has been issued for King Island so I can see the first reef in the main coming in soon and then the jib later on to carry just the double reefed main and staysail during the night.
Of interest on the AIS I came across an oil drilling rig just 10 miles north of track which broadcast its details but the range was no more than 12 miles as its AIS dropped out while still clearly visible. Maybe it's on low power not to disturb SHY whales.
Pictured is the Octopus Electric Hydraulic drive with a 12â ram which I have substituted for the Raymarine 200 Linear Drive which was matched to that autopilot. The problems that arose with the linear drive occurred because of the intermittent failure of the rudder angle sensor. The autopilot can be set up without the sensor input but this causes a further snag as when the normal rudder angle increases due to say too much mainsail the computer seems to sense this as neutral and in a gust will put in too much angle, come against the stops and I guess an overload cut out stops any power for maybe 5 minutes till everything cools down,( except the skipper who along with the sails is still in a bit of a flap ). No permanent damage seems to have been done so I now have the linear drive on board as a backup. The intention was to have a dual setup so a hot swap could be made with the flip of a switch but it all got too hard so an uncomfortable hour or two in the cramped lazarette should be expected in the case of failure of the hydraulic system. The Octopus comes with a solid reputation with a swash plate piston drive purportedly using half the electric current of a similar gear pump.
--------------020108020700050900070805--