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Showing posts from August, 2019

Scanmar bilge and swinging keel

The Scanmars, at least the SC33 and SC35 that I'm aware of, are infamous of developing a swinging/pendulum keel due to the lack of structural members in the bilge that could prevent the hull from flexing sideways at the hull to keel joint. Here is an article (in Swedish) that mentions this problem (svajköl) and here is another one from a surveyor who claims it's a weakness in the construction. The "stringers" on these boats are only floor beams, that are not going down deep enough to the bilge to act as a structural element. If the boat had harder groundings the attachments of the floor beams could delaminate from the hull, making the hull-keel joint even weaker and the swinging keel symptom worse. When we were on a boat hunt we've checked out almost all the SC33 on the market at the time and paid attention to how their bilges looked like (and in the end bought a SC35 without reinforcements 😄). As the bilge on the SC33 and SC35 looks very similar, I thoug

Garmin instruments installed

The new Garmin GNX displays are now installed and working. The previous owners made an instrument holder console made out of plywood, which was accommodating an old Simrad chart-plotter, the autopilot control unit and a fish-finder. We decided to get rid of the old Simrad display and place the two new Garmin GNX displays in it's place. We replaced the plywood with a new mahogany faced sheet. The instrument console can be rotated in and out, so it can be seen from anywhere and can be hidden from the elements if it's not in use. The autopilot can be controlled even from the saloon or when sitting under the sprayhood, protected from the elements. The downside is that it's in the companionway when sailing, but the only other viable option would be to put the instruments next to the companionway hatch, but because the NMEA2000 connectors need a much deeper space than the old Silva ones, it would mean making a box for the cables on the other side of the bulkhead. This sol