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Text and photographs by Antonio Bignami
Nautica Magazine
n. 421, May 1997
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ARS MARE RS 33 ST
By averaging the necessities of blue waters fishing and those
posed by comfortable cruising, the Ars Mare yard has recently
introduced this boat that rightly mixes the fishing "musts" with
the pleasure of cruising. Fishingwise all the requirements have
been met: enhanced trim and stability, slow panning speed, quick
rolling recovery.
On deck fishing activities are also privileged
with the low profile bulwarks, easy passages aft and a
superstructure of simple and essential lines. Cruising comfort and
sleeping accommodation is surprisingly ample of a fisherman boat
of hardly 10 meters LOA. Two elegant and separated cabins and a
spacious and luminous bathroom complete the living quarters. This
is a well balanced boat displaying an appealing profile line where
the tuna tower does not stand out on its own and disturb the
pleasing profile. Stainless steel is profusely used on deck and of
particular attraction are the tuna tower structure and ladders.
A sea trial on the RS 33 ST will clearly display the excellent
performance of this boat where the weight/power relationship is
undoubtedly low with an equally interesting fuel consumption. The
final delivered cost is also interesting considering the quality
guarantee given by a boatyard like Ars Mare with its high quality
products designed and built by a team of professionals ready to
satisfy every owner's request.
 TECHNICAL DATA
Project by: Yacht Design Fulvio De Simoni
Builder: ARS Mare; via del Fosso 33/A; 57024 Donoratico
(LI); tel.: +39-565-776012; fax: +39-565-777077
LOA: 10,65 mt
Max. beam: 3,49 mt
GRT: 9,51 tons
Molded depth: 1,90 mt
Max. draft: 0,85 mt
Light displacement: 7.500 kg
Full load displacement: 9.000 kg
Max. passengers capacity: 10 persons
Engines: 2x300 HP Caterpillar 3116 TA
Total installed power: 600 HP
Transmission: shaft line; 40 mm. shaft diameter; reduction
gear ratio 1,5:1; 4 blades propellers D.= 490 mm, P.= 670 mm
Engines weight (reduction gear included): 1.340 kg
Light displacement to installed horsepower ratio: 12,50
Top speed (declared): 34 knots at 2.800 rpm
Cruise speed: 27 knots at 2.500 rpm
Fuel capacity: 900 liters
Fresh water capacity: 300 liters
Berths: 4+2 in 3 cabins
Range: 350 miles (cruise speed fuel consumption: 70 l/h)
Tested boat price: 325.000.000 Lit.(VAT not included)
Average miles range, at a given rpm, is obtained
dividing the total fuel capacity (900 liters) for the
"liters/mile" corresponding to the entered rpm. Plotted fuel
consumption is declared by the engines' manufacturer: tuning of
the engines, weight of persons, stores, etc... on board, hull
conditions and propeller type can effect the real fuel
consumption.
CONSTRUCTION PARTICULARS
Hull type: deep V.
Construction material: fiberglass.
Deck and particulars material: stainless steel fairleads,
bow roller, chain and anchor, 1000 W electric windlass, sunbathing
area, 2 stainless steel cleats, stainless steel handrail.
Cockpit particulars: molded side lockers, hydraulic driven
engine room hatch, 2 access ladders to the tuna tower, 2
fairleads, 220 V shore line socket, cockpit to swimming platform
access door, 2 fully hidden stainless steel cleats, stainless
steel grabrails, steps to the side walkways with locker
underneath, swimming platform, swimming ladder,
2 convertible dinettes, table, fully hidden galley area with stainless steel
sink, two burners stove and 80 liters refrigerator, sliding access
door to the cabin, halogen lights, double pilot and co-pilot
seats, 2 loudspeakers, transparent cockpit's canvas.
Superstructure windows material: stainless steel and toughened glass.
Tuna tower particulars: second steering station with
engines monitoring instruments and gauges, throttles, steering
wheel, compass, fiberglass sole, stainless steel tuna tower.
INTERIORS
Lay-out and main features: one double cabin and one twin
beds cabin both with wardrobe and separated bathroom with shower.
Upholstery color and type on request.
Steering station: engines monitoring instruments and
gauges, log, water and fuel level indicators, horn, windlass
remote control( on tuna tower as well), stainless steel steering
wheel, throttles.
Chart table: to the dashboard's port side.
ACCESSORIES
Standard equipment: engine room blower, automatic/manual
fire fighting plant.
TRIAL RESULTS
SEA AND WEATHER CONDITIONS AT TRIAL TIME
wind: calm
sea state: smooth
OBSERVED PERFORMANCES
Planning time: 7 seconds
Minimum planning speed: 11,4 knots at 1.600 rpm
Top speed: 33,8 knots at 2.800 rpm
PERFORMANCE EVALUATION
Seakeeping: excellent stability and maneuverability and
considering the boat's dimensions displays an excellent trim and a
soft wave riding.
Rudder and trim tabs response: fast and precise.
Visibility: excellent both from the tuna tower and the cockpit.
Docking capabilities: very good.
COMFORT AND FUNCTIONALLY EVALUATION
Construction material and detailing:
Deck: easy to walk and carefully fitted with excellent
stainless steel components.
Interiors: well designed giving good living conditions and privacy.
Passengers comfort: very good.
Steering comfort: very good and practical.
Chart table: excellent.
Galley: practical and comfortable.
Bathrooms: spacious and practical.
Engine room space: excellent with the hydraulically assisted hatch.
Electrical plant: easy to accede with good quality components.
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