Saturday, December 3, 2016

Akas! (1)

Two hours today in which we started working on the akas. First thing was drilling the holes in the mounting blocks. We used a 10 mm bit, and a drill support the keep the hole vertical. No big deal really. We then drew the centerline on the forward aka, centered it on the blocks, aligned it square with respect to the centerline, and pinned the position of the bolt hole from underneath trough the bolt hole just drilled int he mounting block.

Total work time to date: 509 hours

Saturday, November 26, 2016

Blades ready for paint; false transom

Two hours today. We sanded both blades with the power sander (120 grit) taking down epoxy drips, FG edges and so on. They look good, I think. The pics give a good idea of the size. Here's the rudder

and here's the daggerboard (quite heavy!)

We also prepared the (basculating) false transom for fiberglassing. Here it is

Total work time to date: 507 hours

Saturday, November 19, 2016

Glassing the blades (3)

Two more hours today to glass the other side of both blades with the same procedure used before.

Total work time to date: 505 hours

Sunday, November 13, 2016

Glassing the blades, and more (2)

Two more hours today to check the results of yesterday's work. This pic gives an idea of what we did to make sure that the akas rest on a flat surface to avoid stresses. You can easily see the varying thickness of the resin due to the non zero inclination of the pad top with respect to the deck. This has been done for all 4 aka supports.

and here's a pic of the blades after fairing the FG cloth edges.

Total work time to date: 503 hours

Saturday, November 12, 2016

Glassing the blades, and more

Four hours today after a long hiatus due to many other commitments... and we passed the 500 hours mark!

I had noticed that the akas were not staying flat on the wooden supports. So we checked that the boat was level both longitudinally and atwartship, put some plastic tape under two of the aka beams and used them to properly level a layer of thickened (microfibers+silica) resin spread on the top of each pad. Tomorrow we'll see if this worked out properly. We might also wanto to put a thin (a few mm) piece of hard rubber to improve the contact between the akas and the supports.

We then glassed the first side of rudder and daggerboard with two layers of 160 g/sq.m. cloth (one 0-90, the other +45/-45) and clear resin. Here's Cinzia cutting the cloth to size

and here are the two blades glassed on one side

BTW we decided not to proceed with thickening the trailing side of the blades. We'll cut the clot flush along the sharp edge and we'll make sure to thoroughly coat it.

Total work time to date: 501 hours

Wednesday, October 26, 2016

Fairing the blades (4)

We're back after a quite busy period, mostly due to a conference in Germany which resulted in two lost (boatwise) weekends. Last saturday we were ready to glass the blades after a lot of sanding, which resulted in fairly nice shapes

However, we discovered that the trailing edges of both blades are too sharp to wrap wet fiberglass around them. To be honest, the plans recommend to make the trailing edge pencil-thick and round it, but I overlooked the recommendations. So we will probably increase the thickness of the trailing sides with 3 mm thick plywood or veneer glued on each side, and will fair again before fiberglassing... oh well

Total work time to date: 497 hours

Sunday, October 2, 2016

Fairing the blades (3)

Two more hours to work on the blades. Spread some putty on the other side of the daggerboard,

and started to sand the rudder blade. This is hard and quite difficult work indeed..

Total work time to date: 494 hours