Nelson
38 & 42, Seaward 25, Landguard Nelson 113
When
Commander Peter Thornycroft designed the first Nelson, a 29ft (8.4m) fast
commuter for Leopold de Rothschild, in 1959 he started a line of boats
that has virtually become generic. For many, a semi-displacement gentlemens
motor launch can only be a Nelson. It is the definitive type, unchallenged
by pretenders to the throne.
Very little has changed in the past 40 years. The persistent demand for
more voluminous interiors has occasionally been met with small increases
in beam. But few would be able to spot the difference between a hull drawn
by Peter Thornycroft in 1959, and one designed in 1999 by Arthur Mursell
of TT Boat Designs.
The types inherent conservatism has only recently started to be
chipped away, with new arrivals like the Dale Nelson 38. Now Nelson buyers
can have sexy fittings and fixtures, unusual interiors, and even eccentric
exteriors! We rounded up a collection of the conventional and the not
so conventional, and put them under the MBY microscope.
With
their 30-knot potential proved by Horatia back in the late 1960s, you
might expect the Nelson hulls to bear the closest resemblance to a 30-knot
deep-vee planing boat. At first sight though, their round-bilge displacement
shape seems as far removed from a Fairline as possible certainly
more so than all the other forms such as the hard-chine Grand Banks, or
the Aqua-Star with its small chine. So, given enough power, why does a
Nelson have the ability to travel much quicker than a Fleming or a Grand
Banks?
Dig a little deeper into Arthur Mursells lines plan for the Nelson
42 and you discover the two answers. Near the bow, the sections are actually
a deep-vee, with a 45° deadrise indistinguishable to that found on
most 30-knot planing boats. So although they appear very different because
of the Nelsons more upright stem and lack of chines and spray rails,
there are similarities which allow the Nelson bow to develop dynamic lift:
certainly more than the Grand Banks boats. And where the buttock lines
on the Grand Banks are still rising towards the stern, the hollow ones
on the Nelson flatten off markedly, allowing it to push its stern wave
further aft, and develop more dynamic lift along the rest of the hull
too. All this means less drag and hence more speed, although even the
Nelsons are still ultimately trapped by their wave systems.
Its
perhaps unfair to lump these four boats together the Seaward 25,
Landguard 113, Dale 38 and the 42 when describing the handling
and performance, but some generalisations can be made. I havent
tested the 38 (which appears a lot dryer) but driving upwind on the other
three, the only time I have been wetter is surf-canoeing in Cornwall.
They have no chines to deflect the spray, so even in moderate conditions,
solid lumps of water find their way aboard. And although the trawler types
are much the same upwind, their flybridge helms are further forward and
higher, so you can stay outside without an aqualung for far longer. The
Sea Ranger and the Corvette are in a different league, barely getting
damp.
In a beam sea, because they have no chines developing dynamic lift, Nelsons
sit very level at any speed, which adds much to passenger comfort. Downwind
handling is excellent too. When we tested the Seaward 25 for instance,
skidding down the steep, 6ft quartering seas around Poole Bay, no amount
of deliberate provocation could make the boat misbehave or dig its bows
in and broach. The Nelsons are clearly better than the slower trawler
yachts here, and there is a strong sense of being on a boat that will
take care of you, whatever the conditions.
The Good: legendary rough weather handling.
The Bad and the Ugly: very wet in rough weather. Narrow beam means
low-volume interiors. Trawler types much safer on deck.
Most
of the Nelson builders are long-established names: Bucklers Hard, Seaward
Marine, Dale Sailing, and Landguard Marine for instance. Bridgend Boat
Company are Nelson newcomers, though Ive been a fan of their high-quality
traditional wooden sailing boats for years. There has been a breath of
fresh in the Nelson world recently: the interior of Bridgends Nelson
42 sports blue Alcantara and light woodwork. Dale are also producing innovative
interiors, although they are happy building the conventional too. The
novelty is not restricted to below decks either. Seaward have their Menorca
25 (MBY October 1997), an open-deck Nelson, custom built to take advantage
of the sun around the owners home in Menorca. Having worked with
Bucklers Hard in the past their Aqua-Star 42 has my interior design
and styling I can vouch that they have an imaginative and skilful
team, and owners will find them a joy to work with. I would put them at
the top of the pile for quality, although the latest from other yards
give them serious competition.
Comparisons & conclusions
The
things closest to the hearts of buyers of semi-displacement boats are
safety, practical interiors, sound engineering, and excellent handling.
So how do the Nelsons compare? Well its far safer moving around
the decks of the trawler types with their waist-high bulwarks. There is
a strong practical element running through the interiors of all the boats
reviewed in our semi-displacement special, and with the customisation
now on offer, most things are possible. But if its a truly avant-garde
interior you crave, the real custom Nelson builders know no bounds, whereas
many of the other manufacturers have some constraints. What
money cannot buy is more interior space on the relatively narrow Nelsons,
so a Sea Ranger 448, an Aqua-Star 45 or a Tarquin Trader feel
far roomier than a Nelson 42. Engineering? Its the Grand Banks that
everybody else has to aspire to here. Enough money could probably guarantee
the same quality, but no amount of the folding stuff will secure their
stadium-sized enginerooms.
Which
leaves handling. There seems little dispute that in extreme conditions
the Nelsons are outstanding. But its not a wholly one-sided contest.
In everyday cruising, other boats are drier and most roll less. And although
the test conditions for the Corvette and the Aqua-Star werent extreme
their handling suggests they would tackle worse.
So it would seem that Nelsons have a fight on their hands. Or do they?
If I could buy one motorbike, it would be a Harley Davidson. Its
expensive, designed in the 1960s, and woefully underpowered an
anachronism of the first order. But that doesnt matter to me: its
an icon and I want one. And so it is with a Nelson.
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Aqua-Star
45
Aqua-Stars
are obvious competitors to Nelsons. They have an outwardly similar hull
form, and they share the spoils when port authorities come to choose their
pilotboats. However, even if you miss the small but significant differences
in their hull shapes, moving between a Nelson 42 and Aqua-Stars
new Ocean Star 45 (left) is quite an eye-opener. Surprisingly, there is
only 1% difference in overall length between the two, but with 15ft 0in
(4.57m) of beam compared with the 12ft 10in (3.92m) of the Nelson 42,
strolling onto the Aqua-Star is like moving from a two-up, two-down into
a four-bedroom semi.
But as we all know (and hope!), size isnt everything. The palatial
accommodation provided by the Aqua-Star is only one of many things that
make or break a boats success. In December, we flew to Guernsey
to discover the truth about all those other things.
I have talked to numerous buyers trying to choose between semi-displacement
and contemporary, high-speed planing powerboats. Two things seem to influence
their decisions more than others. Firstly, the look although many
are open minded about the pros and cons of the two types, some are simply
more at ease owning a traditional-looking boat. The perceived heavy-weather
handling and performance gains also figure highly. But I feel that the
biggest differences are often found in the way that builders of semi-displacement
boats approach their task.
On deck
Nowhere
are the differences between boatbuilders more obvious than around the
decks on the Aqua-Star 45. For instance, the handrails on the flybridge
where you experience the most movement are higher than on
deck. On contemporary powerboats, crew safety is often sacrificed for
style, and the handrails lowered for a sleeker look 10in is the
record so far!
And why is it that the semi-displacement crowd take mooring more seriously
than those building planing powerboats? The 45s mooring gear would
look quite at home on a modern 60ft powerboat, except for the stainless
plates that protect the lovely teak-capped bulwark from abrasion. With
a second pair of forward fairleads and secondary spring cleats augmenting
all the usual gear, its difficult to see how the mooring gear could
be improved.
With its full 3ft (0.9m) depth, the 45s flybridge is firmly in the
sit down in category, not the perch on top class.
Theres seating for four adults around the drinks table, with space
for two more at the helm. Here, the fixed seat makes it a stretch to reach
the wheel and the throttles an adjustable wheel would help, but
a sliding seat would be far better. Our boat sported a barbecue up top,
covered with a high-quality (ergo expensive) double-skinned hatch. Many
builders still fit flimsier single-skinned alternatives.
Handling & performance
The
45 performs well compared with its competitors. Pushed along by Volvos
370hp TAMD63P engines, and with around 1.5 tonnes of fuel, water and people
adding to its bare 15.5 tonnes, the 45 achieved 23.2 knots. Thats
on a par with the lighter Nelson 42, and extrapolating from our Sea Ranger
448 test results, only a knot less than the 448 would manage if fitted
with the same engines.
Looking at the speed:power curve, theres no evidence to suggest
that the 45s hull is reaching its limit at 23 knots. So the next
obvious jump the 430/435hp engines should push the 45 at
around 25 knots. And a pair of Volvos torquey new 480hp TAMD74s
are only 400kg heavier than the TAMD63Ps, so 26 knots may be possible
with these engines.
Theres a simple trade-off between cruising speed and cost, as the
fuel consumption improves in line with decreasing speed. Flat out, the
sound levels were average, but in the mid-teens, they dropped off noticeably
16 knots was a very peaceful cruising speed.
Accommodation
With
a total of 27 drawers, lockers and wardrobes to choose from in the aft
cabin, fiddles on all the worktops, and a generous 5ft2 (0.5m2)chart table,
its easy to spot the philosophical differences below too. The saloon
has only one noticeable shortcoming, the overly upright seat backs. These
are OK for dining, but for comfortable lounging they need more padding
just below the lumbar region. Otherwise, the 11ft-wide (3.3m) saloon works
well, and will swallow about ten adults before it begins to feel crowded.
Although the galley is down three steep steps, the cook can remain involved
in the social activity as this area is open to the saloon. Its also
very spacious. Unfortunately, the door of the eye-level fridge sweeps
low across the worktop, rendering this section largely unusable. Swapping
it with one of the abundant, large lockers below would restore the otherwise
generous worktop, and allow the 45s galley to make it into my top
five, irrespective of boat size.
Aqua-Star have scooped away the bow around the anchor. Along with the
deep windows and the elevated steering position, this provides excellent
panoramic visibility, good enough to moor the 45 from the inside steering
position. Theres enough space here for all sorts of electronic helpers,
and the dash is very clearly laid out. The fiddles are particularly useful
here as handholds to complement the vertical pillar, and as restraining
devices for all the oddments that seem to follow the helmsman around.
With the finish and styling in the cabins receiving so much attention,
the heads compartments have been left looking a touch austere in comparison.
It all works fine, and its good to see handholds here for a change,
and the deep shower tray doubling as a hip bath. But a touch more glitz
would probably not look out of place.
Engineering & construction
Were
you to peruse Lloyds construction rules, you would find theres
a direct trade-off between the requisite hull thickness, and the distance
between the frames supporting the skin. Aqua-Star put their trust in heavier
laminates, more in keeping with the prodigious lay-ups found on US boats.
In comparison, most Nelsons have a monumental lattice of interconnecting
frames and stringers, and lighter laminates. Compared with a deep-vee
planing hull using duplicate construction, both are far stronger, because
their more heavily curved panels are stiffer, and their keels serve as
huge additional longitudinal girders.
Entry to the engineroom is possible through the saloon floor, but easier
and speedier via the (unnecessarily small) hatch in the owners cabin.
Once Aqua-Star fit some decent lighting you will be able to see all sorts
of impressive things. There are smooth flow-coated engine bearers with
drip trays between them to contain spills; orderly wiring, all conduit
run; drip-free sternglands; and a luxuriant 3ft between the engines, which
helps you avoid the embarrassment of asking your guests small children
to check the oil, they being the only ones compact enough to work effectively
inside the enginerooms of many aft-cabin boats this size.Looked at from
afar, it is easy to mistake an Aqua-Star for a Nelson, or vice-versa.
And its true that of all the myriad shapes tested here, these two
bear the strongest resemblance, above and below the waterline. They share
the same basic shape, a round bilge form, with the flattish buttock lines
that allow them to attain higher speeds than the Grand Banks and the Fleming.
But there is a fundamental difference between the two rivals the
Aqua-Star has a narrow, full-length chine. This is barely visible, as
its low at the bow and enters the water well forward.
How
this affected the handling compared with the Nelson seemed to depend how
fast we were travelling. Driving upwind in a Force 5 into the steep, 6ft
seas around St Peter Port in Guernsey, at low speeds there was no perceptible
difference. If the Aqua-Stars chines were deflecting a little more
spray it was largely academic, as the boat was constantly peppered with
solid lumps of water anyway. As soon as the swells lengthened a little,
the 45 could be driven upwind much quicker. Rather like the Nelson, it
was only in the really steep seas that the hull can be made to slam, and
only then if its deliberately provoked. Above about 12 knots, the
chines do begin to work more, but
compared with say the Corvette or the Sea Ranger, the Aqua-Star is still
an almighty wet boat, with its rolling still in evidence.
But turn downwind and everything changes. Here, and in big quartering
seas, the 45 is a real joy to drive. As the boat gains speed, the chines
begin to bite, the rolling disappears, and almost no water finds its way
on board. It was impossible to get the boat to misbehave in any way. Even
depressing the trim tabs fully, or driving at the wrong speed
could not unsettle the boats balance or provoke it into burying
its bow or upset its steering. And like most semi-displacement boats,
the 45 has the best of both worlds excellent directional stability
and a very speedy and precise response to the wheel.
The Good: excellent value for money. Practical, spacious interior,
especially the saloon and galley. Mooring gear. Abundant storage below.
Safety around the deck
The Bad and the Ugly: saloon seat backs too upright. Inadequate
engineroom lighting.
As
the owner lives on Guernsey and keeps his boat there full time, Aqua-Star
have been able to legitimately omit the VAT from his bills. However, if
the boat moves outside Channel Island waters permanently, the VAT becomes
due. If you are happy keeping your boat in the Channel Islands, this VAT
anomaly does provide a substantial saving on what are already very keenly
priced powerboats.
Italy is probably not the first place you would expect to find the joinery
for a traditional boat built in Guernsey, but like many boatbuilders,
Aqua-Star do not build all their own furniture. In this case, its
the laminated door frames, complete with beautiful finger joints, used
by better builders to ensure a long life. Mimicking the high-gloss finish
found aboard contemporary flybridge cruisers is still a novelty among
semi-displacement builders. With the large amount of joinery inside these
boats, it might have been expected to overpower the interior, but theres
so much space on the 45 that it works very well. The difference between
this boat and a Princess for instance, is that Aqua-Star are still using
teak, not the ubiquitous American cherry. And teak is, according to Lloyds
Register, the best wood money can buy, achieving 15 out of 15 straight
As in their timber selection guide.
Its rare to find a boat of any size which has such an effective
saloon layout. Almost all the boats I test have dinette tables which are
far too small for all the boats occupants to dine together in any
degree of comfort. And even when they are large enough, they often founder
by forcing the diners to crowd around three sides of the table. In its
unfolded state, Aqua-Stars table is large enough for six proper
place settings, and the two seats across the saloon can slide across for
dining in comfort. Full marks here.
Comparisons & conclusions
It
has been suggested to me on several occasions that an Aqua-Star is a poor
mans Nelson. If that implies unbeatable value for money, the sentiment
rings true. But as a pejorative statement its very wrong. I confess
that we did not test the two Aqua-Stars or the three Nelsons in survival
conditions the sort where experience is at least as important as
the boat you pilot. But nothing I found suggested that any of these boats
would be anything other than outstanding in these conditions. Of
course, neither boat will keep their helmsmen as dry as the Sea Ranger
or the Corvette, or roll them around as little.
There was a time when the standard of finish and attention to detail found
on the custom-built Nelsons put Aqua-Star in the shade. But over the past
three years, Aqua-Star have improved. Any variations in quality are much
smaller, certainly no greater than the differences existing between the
various Nelson builders. Only Flemings and Grand Banks engineroom
installations are still ahead, but then they are ahead of everybody. Once
you start delving into the price list, the Aqua-Star 45 begins to look
unbeatable. Even if you assume that some of the Nelsons have a quality
edge, they cant begin to compete with the 45s interior space.
A Grand Banks 46 keep up in the space race, but having to hand over almost
£100,000 extra might make you swallow hard. Closest
of all for space and quality is the Sea Ranger, which doesnt roll
and keeps you dryer. But theres the matter of the price
difference, amounting to the cost of a Ferrari 355. Mmmm. Decisions, decisions.
In an age when modern planing powerboats are so good, are there really
any sound reasons left for buying a semi-displacement boat, other than
credibility in the yacht club bar? Of course there are. High-gloss American
cherry joinery may be sneaking its way aboard the occasional Aqua-Star,
but the differences between the two types are quite profound. And they
are becoming more marked as time goes by.
Handling aside, its down to safety and practicality, and consequently
the way the boats can be used. The trawler types in particular, like the
Grand Banks and the Fleming, are inherently far safer boats to be aboard.
The deep bulwarks, abundant handrails, and wide teak-laid side decks dont
just keep you aboard in rough weather. You and your kids will also feel
the benefits as you wander around the boat when youre moored in
that glitzy marina in Monaco.
This
emphasis on safety tends to pervade the rest of the boat. Theres
no reason why the mooring and anchoring gear on semi-displacement boats
should be bigger and better than those on planing powerboats they
just are. Of course, theres some rationale for the differences inside.
Contemporary stylists of sleek flybridge boats dont consider it
cool to have their interiors contaminated by things like handrails or
pillars to stop the crew lurching across their expansive saloons in rough
weather. Nor do they like fiddles around the countertops, which spoil
the smooth edges that allow everything to slide gracefully onto the floor
as soon as the boat moves. And if you fancy a full-size chart table, rather
than a full-size electronic chart plotter, guess where you will find one?
Fairline in particular are making great progress with their helm layouts
and ergonomics. But although the helms on their new Squadrons are nearly
perfect, the visibility from inside a Fleming or a Grand Banks, for instance,
is in a different league entirely. Its like jumping from a Mercedes
coupé into a Range Rover. So however good your anti-collision radar
is, in rough conditions, theres nothing more comforting than being
able to see everything as clearly as possible.
Its just as well that the visibility is so good though, as many
semi-displacement boats are more likely to be submerged in an avalanche
of spray, especially driving upwind. Ironically, this is where they present
the biggest gains. However good contemporary planing powerboat forms are,
theres no substitute for deep, fine bow sections, which remain immersed
when you are driving into steep, lumpy seas. In a beam sea its a
close-run contest. Because they develop less dynamic lift, the semi-displacement
forms often sit more level with the horizon. Still, trim tabs can always
be used to level a planing powerboat to make it more comfortable. Downwind,
modern planing hulls are the top dogs. Big quartering seas are the traditional
weak spot of the slower semi-displacement types, and here the extra speed
and forward buoyancy of the planing powerboat make them easier to control.
I find the rolling of semi-displacement boats to be a major drawback,
although it clearly doesnt bother everybody. Unless you have the
luxury of stabilisers, in most conditions, they roll a lot more than their
planing counterparts. Even the most resilient seafarer would not describe
them as comfortable.
Conclusion
All
the owners I have met claim that one of the major attractions of a semi-displacement
boat is the handling and seakeeping. Interesting then that, when it comes
to a contest, its clearly not a one-sided battle, with both semi-displacement
and planing powerboats able to claim victories in different areas. Rising
above this contest though, are the Corvette and the Sea Ranger, the only
boats I have driven which combine the best of both worlds.
And what of the giant engines that are finding their way into semi-displacement
boats, and the huge cost premium that owners pay to squeeze that final
knot from their boats? Better to have the capacity for velocity than not,
runs the argument, and who can disagree? And unlike big-engined cars,
if the horses arent driven hard, they graze very lightly, so Mr
600 horses wont burn any more fuel than Mr 450 horses when they
drive at the same speed.
But its the philosophy of the semi-displacement boatbuilders that
really makes their boats so different. The style police are
to blame of course. These increasingly powerful figures prowl the design
studios, rounding up fiddles and handrails, oversized cleats and windlasses,
and full-size chart tables anything that spoils the look.
But their jurisdiction simply doesnt extend to the likes of Grand
Banks and Fleming, or Nelson and Aqua-Star. And until it does, there will
be people queuing to buy semi-displacement boats.
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