So the wife and I are cruising back from Block Island in the fog with about a 15 knott wind, beam reach, 1 mile visability. We Hit the "Race at a great time...head up Fishers Sound...she goes below to make lunch then wham.
All of the Chartplotter instruments start doing summmersaults, digital ST60 depth finder goes from 100 ft to 2 ft to 22 to 222 to 5 and looks like one of the wheels on an Atlantic City slot machine turning. Wind instrument digital of course is doing the same. Autopilot which has a fluxgate compuss setting its heading decides I am heading North... then East...then North but never West or Southwest which is where I was heading as the wind is still on the beam and has not switched at all.
I call my wife up from below and ask her to bring a pocketnife which has a compass in it to verify what my binnnacle compass is reading.
All of a sudden we hear this loud claxon....and out of the fog appears a sub....big sub....bigger than life.
No signal on the radar...which you couldnt read anyway as it was still doing flips on the chartplotter.
Now I knew New London/ Groton was where they come from and they must stay on the surface there until the 100 fathom line I am told, but it was still a shock to see him appear so close out of the fog. And why did all my electronic instruments go besserk. ( I understand they ubnder degaussing and that it is a large chunk of metal so it might affect a compass....but why the electronics.
He scared the crap out of us...but we did get a good picture as he pulled away and then the electronics went back to normal.