Sea trials are a busy time with testing, sorting out the inevitable gremlins that are part of a new boat, and learning how the boat performs. Our time to document the boat is limited – this is being written at 0430 – and we’ll have lots more details to share a week from now. For today here are a couple of items that have caught our eye.
We’ll start with this look at one of the two galley floorboard openings into the “basement”.
The headliner panel has been dropped to replace a faulty Furuno GPS antenna. Note the cut outs in the plywood panel. These save weight, and aid in sound attenuation.
You are looking here up into the “attic” area above the headliner.
The bridge area electrical panel (we’ll have more to say about this in a few weeks). AC power is on top, DC on the bottom.
Posted by Steve Dashew (March 26, 2010)
March 26th, 2010 at 2:24 pm
Hello Steve,
I’m very curious about the relationship between roll dampening and the drag/loss of speed as a result of the anti-roll fins doing their work: would it be possible to compare these effects with the fins in fixed position parallel to the center line to quantify the speed (or fuel consumption) gain versus the loss of comfort, even though the latter is very subjective?…
This would also give an idea of what to expect, should the fins stop working during a passage…
These fins are so big that there may not be such a great difference, while the speed gain may well be in the .5 to .75 knots range…
I also recall reading an article about bilge keels location and how there is a sweet spot that greatly dampens the quarter wave, while a few feet forward or aft of the best location, drag is much increased: were you able to tank test the location of the fins and confirm this?…
March 28th, 2010 at 1:19 pm
Frank:
We did extensive testing on Wind Horse with and without fins to verify our CFD and VPP data. We have not done enough testing yet to answer this question on the 64, but my gut tell me the boat is going to be surprisingly comfortable with stabilizers turned off (harmonic wave periods of course excepted).