Subject: Re: [harryproa] G4 capsize
From: "Rob Denney harryproa@gmail.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 4/22/2015, 6:15 AM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

Easy enough to imagine, but i would much rather it was not put to the test!  There is an amusing version of that video at https://vimeo.com/125490884.  Interestingly, Peter Johnstone, the owner of Gunboat has recently bought Madness, the CLC Pacific proa.  Not sure what he intends to do with it, but the precursor to the G4 was some heavy involvement with the A Class cat foiling crowd.  

Update on the Cruiser 18: We are just putting the finishing touches to the lee hull plans.  Everything, (doors, hatches, bunks, shelves, bulkheads, hull, decks, local strengthening) is infused, except the 300mm collision pieces on the hull ends which are polystyrene with a single layer of glass over them.
The bulkheads, frames, shelves, sink unit, steps and lockers glue in to slots which are included in the infusion. A tailored joint allows the 2 half hulls to also be glued together.  
There is no sanding, grinding,filling, fairing, wet laminating, bogging, filletting, polishing or cutting of cured glass apart from the end pieces.   All exposed edges are glassed, all hatches and doors are made as part of the panel in which they will fit.  Rebates for windows are included.
The glue is applied with a mixing head dispenser, the only contact is scraping off any excess which is squeezed out of the joins.
The finished product including all the exposed edges is ready for undercoat, inside and out.  

We have also been able to simplify the set up time for the infusion, by performing all the location measurements on the flat.  No in hull measurements, aligning or making structure vertical is required.  

The savings in materials and build time are huge and the building is all done without sticky mess or dust.  

It has been huge fun and very challenging making this work, which would not be possible without Steinar's computer skills.  

Ballotta are apparently ready to start, the plans should be complete this week.  

No progress on Bucket List, Etamax got a rush job, BL was deferred, yet again.   No progress on kites and/or foiling as I am too busy.

rob

On Wed, Apr 22, 2015 at 7:57 AM, Mike Crawford mcrawf@nuomo.com [harryproa] <harryproa@yahoogroups.com.au> wrote:
 


  Great post!

  I can imagine flying a hull at close to those speeds on a proa, with two queen bunks and standing headroom, pushing it too far, and then /recovering/ from the capsize.  That is, assuming the mast didn't depower enough of the gust, and/or I didn't dump the 2:1 mainsheet at 45 degrees, and/or the sheet auto-release didn't work.  All for less than 1/4 the price.

  Of course, the G4 does have the foils, but assuming one doesn't have an unlimited budget, a boat-righting support team, and four sailor-athletes to sail the beast...

  What a great illustration.  Plus, big slow-motion capsizes are always fun to watch (well, on video, when no one gets hurt).

        - Mike



fvonballuseck@gmail.com [harryproa] wrote on 4/21/2015 7:31 AM:
 

There have been many great discussions on foils  on HP.

Next to the 'hitting submerged objects' risk there is also the more 'standard one' as G4 just found out in their capsize.

Still cool footage even with the mainsail mistake.

Fedor




Wipe Out


Wipe Out
GUNBOAT G4-01 Timbalero III finds the limit while racing on the final day of Les Voiles de St. Barth.
Preview by Yahoo

 



__._,_.___
Posted by: Rob Denney <harryproa@gmail.com>
Reply via web post • Reply to sender • Reply to group • Start a new topic • Messages in this topic (3)

.

__,_._,___