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Article selected from
the large database of nearly 3000 navigation tests performed by Nautica Magazine in more than 40 years

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Text and photographs by Antonio Bignami

DALLA PIETÀ DP 55 ASTERION

Nobody can dispute the success, both commercial and of visitors, obtained by the DP 55' Asterion at the last Genova boat show. The project is the result of the collaboration of Trezzi & Valsechi N.A., based on Dalla Pietà's yard hull design. On boarding this yacht for the sea trials, what captivates the eyes is the clear mixture of handcrafting and innovation, almost a delicate balance between old and new, a lecture in style and class totally blended with avant-garde technological solutions. The DP 55' Asterion is in fact a well balanced mix, both internally and externally, of long cherished traditions and modern boat building techniques without overdoing in both senses.

The on deck area is enriched by the teak wood and a profusion of modern technologies; inside, the three beautiful cabins, each with private bathrooms, the saloon with stepped flooring and two dinettes, the galley located half deck below the saloon.... all yielding very comfortable living conditions and affording privacy without sacrificing the life in common concept typical of these crafts' range. This splendid habitat is enriched by a sober yet elegant styling design while the carpentry high finishing standard is clear indication that there are still in Italy yard capable to treat wood without useless attachments thus leaving untouched the natural live wood characteristic.

All this donate brightness and vitality to the entire craft, a must in this boat's class. During the sea trial the weather was on our side: we left the yard's wet basin under a typical late fall venetian lagoon condition with low mist and gray sky but after clearing the Malamocco harbor, we meet moderate sea and clear skies: an almost ideal condition for the trials we were to undergo. The DP 55' Asterion gave us a spell of great and exhilarating navigation; perfectly at ease on the short swelled sea and exceptionally smooth on the braking peaks and finally, totally safe and noise insulated on reaching the 33 plus knots range. A perfectly balanced yacht under any consideration with a plus in the interesting quality/cost rapport considering the complete top of the line professional standard equipment installed on board.

TECHNICAL DATA

Builder: Dalla Pietà Nautica Venezia; Via dell' Elettronica 21/d; II Z.I. località Fusina; 30030 Malcontenta, Venezia; tel. +39-41-698244; fax +39-41-698292
Project by: Trezzi e Valsecchi on Dalla Pietà hull
LOA: 19,80 mt.
Register length: 16,50 mt.
Max. beam: 4,95 mt.
GRT: 24 tons
Molded depth:
Max. draft: 1,20 mt.
Light displacement: 18.000 kg
Full load displacement: 24.000 kg
Max. passengers capacity: 12 persons
Engines: 2x680 hp MAN D2848 LE 401
Total installed power: 1360 hp
Transmission: shaft line
Engines weight: 2.520 kg (reduction gear included)
Light displacement to installed horsepower ratio: 13,23
Top speed (declared): 33 knots
Cruise speed: 27/28 knots
Fuel capacity: 2700 liters
Fresh water capacity: 1000 liters
Berths: 6+1 in 4 cabins
Range: 370 miles
Cruise speed fuel consumption: 200 l/h
Tested boat price: 1.430.000.000 (VAT not included)

Average miles range, at a given rpm, is obtained dividing the total fuel capacity (2700 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 16° deadrise with spray rails.
Construction material: fiberglass reinforced plastic; Termanto sandwich construction on hull sides, deck and flying bridge.
Deck and particulars material: triple-station windlass, two cleats and fairleads, chain-washing pump, aluminum handrail, teak lined deck, sun-lounger, hatch.
Cockpit particulars: teak-lined deck, 4/5 persons settee, access stair to the swimming-platform, teak covered stair to the flying bridge, fully hidden hydraulic gangway, courtesy lights, hot/cold water hand shower.
Swimming platform particulars: teak lined with ladder.
Superstructure: fiberglass with sandwich construction, toughened glass windshield and side windows with stainless steel frames.
Flying-bridge particulars: windshield with aluminum painted frame, fiberglass radar arch, sun-lounger, 3-persons pilot seat, fully equipped second steering station, VHF, autopilot, depthsounder, wet-bar with 42 liters refrigerator, tender with outboard engine, hydraulic crane, settees.

INTERIORS

Lay-out and main features: owner cabin with double bed and two wardrobes, separated bathroom and separated shower; two guest cabins each fitted with two single bed, wardrobe and separated bathroom with shower; split levels saloon with two dinettes, steering station with pilot seat, furniture and wet-bar; separated galley a level down; crew cabin with bed and separated bathroom, ladder and Alcantara fabric upholstery, fitted carpets, furniture finishing on request (lacquer or several wood essences: on tested boat cherry wood has been widely used).
Steering station: wheel, complete engine monitoring gauges and instruments set, throttles, compass, 24 miles radar, autopilot, VHF, color depthsounder, GPS, chart plotter, intercom, electronic log, search light and trim tabs controls.
Chart table: the forward dinette is suitable for charting, with plenty of space and settees.
Galley: 2 stainless steel sinks, granite working top, ceramic-glass 4 burners stove, lockers, hanging lockers and drawer unit, dishwasher, 160 liters refrigerator, conventional/microwave oven.

ACCESSORIES

Standard equipment: in addition to those previously mentioned, are included: trim tabs, 11 kw gentile. set, stereo system in each living area, TV set, washing machine with dryer in the aft peak, 60 liters boiler, gray and sewage tanks with by-pass valve, automatic fire fighting plant in the engine room, emergency bilge pumps.

TRIAL RESULTS

SEA AND WEATHER CONDITIONS AT TRIAL TIME
wind: E/SE force 3/4
sea state: force 3/4

OBSERVED PERFORMANCES
Planning time: 7 seconds
Minimum planning speed: 20 knots at 1600 rpm
Top speed: 33 knots at 2300 rpm (1360 hp)

PERFORMANCE EVALUATION

Seakeeping: stability and seakeepness are the most outstanding characteristics of the boat; power and safety are clearly felt when lifting out of the water and in case of sudden turns.
Rudder and trim tabs response: very precise and soft.
Visibility: excellent both from the flying bridge and the inside steering station.
Docking capabilities: safe and easy.

COMFORT AND FUNCTIONALLY EVALUATION

Deck: comfortably walkable throughout, nice teak work, excellent fittings.
Flying-bridge: spacious and with a comfortable access staircase.
Interiors: elegant and sober; a carefully studied lay-out to ensure comfort and privacy.
Passengers comfort: excellent, both at sea and at berth.
Steering comfort: excellent both on the flying bridge and main saloon stations.
Chart table: the boat is equipped with a complete navigational electronic instruments set, but charting is possible on the forward port dinette.
Galley: beautiful, elegant and comfortable.
Bathrooms: very nice guest's bathrooms. In our opinion the owner should deserve more space, although he has two separated areas available.
Engine room space: very good.
Electrical plant: well placed, and practical it ensures comfortable maintenance.

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Copyright (C) 1995-2008 Nautica Editrice S.r.l.. Via Tevere, 44 - 00198 Roma (Italy) - Phone +39 06 8413060 - Fax +39 06 8543653
PI 00904971009 - Registration no. 620 19/12/1995 and no. 302 7/07/2003 in the Court of Rome's Press Register.
All rights reserved. Reproduction in whole or in part is prohibited without publisher's written permission.
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