Machining of the plugs is underway. The time to show all is getting closer. For now here is a taste…
Machining of the plugs is underway. The time to show all is getting closer. For now here is a taste…
Some more images of Katana Marblehead tooling coming together nicely…
Bonded or Mechanically Fastened? Most current A Cat beams are bonded to the hulls rather than mechanically fastened. With some increasingly rare exceptions, builders and sailors prefer a unitary platform. The downside of this choice is arguably reduced practicality for transport since the platform cannot be dismantled into its component parts. Accepting this compromise […]
A Class catamaran candidate hull shapes in one of the final evaluation runs. The chosen shape is now finalised. Detail design is next as virtual models are being prepared for machining…
Progress continues on RM tooling preparation in the workshop. In the office the A Cat design is approaching completion. R10R and IOM developments are in the pipeline and consultancy work continues on aerospace projects.
Progress on Katana RM tooling: Plugs/patterns have been delivered, now preparations begin for taking female moulds.
Some revealing images from the A Cat RANSE modelling: Small changes in pitch have very interesting effects on wavemaking and, therefore, on drag. Contrast the shape of the breaking bow wave in these two snapshots… Taking that step forward or aft along the gunnel as conditions change is really important.
Katana appendage tooling machined directly as female moulds from solid metal… The fin incorporates additional drought so it will be suitable for larger boats such as 10 Raters. It can also be adapted for classes with restricted drought such as the IOM. The lower Reynolds Numbers characteristic of IOM class boats makes it advantageous to use the top part […]
Well, the longer than initially planned but more sophisticated hull CFD test schedule is nearing the end… Results have been very informative. Work will now shift to deck shape and crossbeams while preparations continue for construction. More will be unveiled soon.
Progress continues at pace on Katana M hull and deck tooling… Images courtesy Alex Kryger, Aptec Composites.