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Ewald
Jansen of North Vancouver, B.C., Canada asks:
Hmmm,
a direct pipeline to Nordhavn's designer himself, who is steadily
chugging across the Atlantic with time on his hands ... an
excellent opportunity for a few questions re. Design.
The
latest "PassageMaker" magazine contains a letter questioning
the value of a Portuguese bridge. You answered that the advantages
(outside conning area and defensive structure against boarding
water) outweigh the negative impact the bridge has on the
interior layout.
Is
the forward section of the Portuguese bridge used regularly
to visually verify a course or target, or are the sides of
the Portuguese bridge, just outside the pilothouse doors sufficient
for that purpose? For example, quite a few commercial vessels
have outside conning areas on the sides of the wheelhouse,
but not in front.
Is
the 3-foot height of the Portuguese bridge required to adequately
break a boarding wave, or is it possible to achieve sufficient
protection by creating a coaming on top of forward deck lockers,
a higher deckhouse, or any other structure?
It
appears possible to enlarge the N40's pilothouse by extending
it forward, eliminating the forward section of the Portuguese
bridge. This would allow a proper helm seat to be fitted however,
is it an acceptable trade-off? As an additional benefit, the
enlarged pilothouse would make it possible to eliminate the
stairboxes that intrude into the saloon.
Any
feedback from the master would be greatly appreciated, as
I dabble regularly with the designs of your boats (day heads
in the N50, N40 with a side deck, ...) Please forgive me for
butchering your near-perfect designs, but it is about the
only way I can afford to be involved with any Nordhavn!!!
Jeff
Leishman responds:
The
Portuguese bridge is a great place to get a better visual
fix on things when night running especially. While it's true
that wing bridges port and starboard would offer this same
advantage, for various other reason we decided ( we being
Jim Leishman and myself ) to incorporate the full P/B on the
N40. One of the major reasons stems from the fact that we
have a fold up chart table on the port side of the wheel house.
While underway on a long passage this table is often times
in the up position for the voyage making the port side door
inconvenient to use, therefore access to this side of the
boat is possible only by walking around from the exterior.
In rough conditions the full protection of the P/B is preferable
to walking across the foredeck.
However,
probably the biggest thing that influenced the decision to
do a proper P/B, other than the ones already mentioned, was
that's what the majority of our customers expect to get with
a Nordhavn. Without it, they would be disappointed. Granted,
they would get a longer wheel house, but nevertheless I think
most of them would vote in favor of it.
A
coaming is a great way to break up boarding water. One of
the first things I did when we redesigned our Mason 43 sailboat
deck into what we called the Mason 44, was to include a coaming
fwd. of the cockpit. The original design had nothing to keep
water from sweeping across the deck house and right into the
cockpit. Most sailboats today all have a coaming of this type.
In reality the N40 P/B is not 3 feet high. On the fwd. side
it is about 18" high. It is 3 feet on the aft side.
If
we compromised on the P/B and used that space to move the
wheel house forward then we could gain some nice space in
the wheel house; a helm chair would fit, a bigger settee,
etc. However, keep in mind that every inch you move that helm
fwd. the more uncomfortable the boat becomes in head seas.
We tried purposely to keep the wheel aft as far as practical
for that reason.
You
have to keep in mind that designing an entire boat is far
more involved that just what kind of interior we can get into
it. If that was our goal, our boats would be boxes with no
more curb appeal or character than a houseboat. One of the
things about our boats that we hear over and over again from
our customers, and just people walking the docks, is how tough
and serious the boats look. This is not by accident. I'm sure
you've heard the saying 'all boats are a compromise' . Well
the compromise in the Nordhavn 40 of limited wheel house volume
is perhaps what gives it that look, the little ship look.
I never actually drew it the way you describe - maybe it would
look great, I don't know. But it would get you that volume.
You mentioned side decks on the N40. That's a good example
of us compromising the ability to get around the exterior
in order to increase interior volume.
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