There is a detailed plan from B&B Yachtdesign of the keel construction. When i purchased the ClassGlobe plans, i also get the CNC-files for the keel fabrication.

The keel is a safety-critical component of any sailboat. Therefore, it is better not to make compromises. Profiling the keel fin is a sweaty job that can hardly be done with amateur tools and anyway the welding must be done by a certified welder. I had the keel fin cut according to the CNC-file a year ago. My boat building colleague Christian (CG #103) rented his workshop from a metal construction company. The staff helped us in questions of keel fabrication and welding. Before welding, we had the keel fin profiled from a professional CNC-cutting company.

Weld 15mm

Signing the ClassGlobe welding certificate.

Keel welding certificate.

To make the drill holes in the bulbs, Christian and I first built a wooden plate as a drilling jig using a keel fin template.

You can find more information how i build and cast the keel bulb here:  (see my blog: https://minisailer.ch/?m=202208)

With this jig we were able to transfer the drilling position and fix the bulbs in the drill machine.

First we drilled the recesses with a 30mm Forstner bit and then drilled through the keel bulbs with a 13mm drill.

Once again, the construction of the ClassGlobe proves to be very compatible with the standard Euro pallet format and loading space of my VW transporter. With a little balancing you can heave the 105 kg keel fin onto the loading area.