Wednesday 14 July 2010

Fog in the Solent

Saturday started as a very sunny day, so I took Salar out for a long-overdue fishing trip. Or so I had planned. We left Langstone in bright sunshine and headed to Dean Tail to catch a few mackerel for bait. Within minutes of arriving at the edge of the shipping lane, the Isle of Wight ominously disappeared, followed very quickly by everything more than a few yards away. Very creepy, it all happened in the space of just a few minutes and would have been very scary without my trusty chartplotter.

Fog can cause total disorientation with no landmarks in sight, but the wind was still at least F2 so I had a constant wave direction to give some sense of direction. However the GPS signal was still spot on so I knew exactly where I was, not in the shipping lane but probably a bit too near to be safe. I was a little concerned about the smaller coasters that may have slightly wobbly navigation. The AIS function is a godsend in these circumstances, and I am now a convert to the Class B signals. I used to be very scathing about the class B leisure craft transponders because we see so many bleeping away from marinas where owners had clearly forgotten to turn them off, and I thought that to fill the Solent with bleeps would hide the ones to really worry about, Class A bleeps from the likes of the Queen Victoria.

Anyhow, back to the fog story - I was keeping a very watchful eye on the plotter and the edge of the fog about 100 metres away when I received an AIS alert for a vessel heading straight for me - outside the shipping lane. Time to skedaddle I thought, then I noticed the speed indicated - 4.4 knots. Even a rusty coaster does twice that. It must be a sailing boat, and sure enough I just managed to glimpse a large yacht in the gloom. I pulled out my Plastimo aerosol foghorn (loud enough and cheap) and gave it a good hoot in the general direction, and it glided by at a safe distance. So Class B does have a place - particularly when I'm fishing in the fog!