Hello.
Sailing a Cat 387. I'm currently in the water and wondering what the offset should be for my depth finder.
One person told me that the sensor is 18" below the waterline. Just looking to confirm.
Thanks.
Yeah. Right now there is no offset programmed.
I can't accurately measure.
Hoping someone with the same boat would know the the distance the sensor is below the waterline.
I ran aground at Treasure Island in SF Bay and the depth gauge read 4.1. The Catalina 387 has a 6 ft keel (if it a fin keel). So, my offset is approximately 1 ft 11 inches on my Catalina 387
I ran aground at Treasure Island in SF Bay and the depth gauge read 4.1. The Catalina 387 has a 6 ft keel (if it a fin keel). So, my offset is approximately 1 ft 11 inches on my Catalina 387
Not necessarily.
Back in 2013, we went in to Treasure Island with our 6' keel and the depth sounder reading 4.x feet at entrance. Our friends had a 7 ft keel and found the same. Both of us had calibrated our sounders (to depth at waterline). We were (easily) ploughing through jello-like mud.