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Seller's Description

‘Gdynianin’, a Roberts 28, 33ft steel ketch cutter, pilot house and dual steering.

Strong and charming. Have been sailed through the Bass Straight, coastal and open water. Upgraded for singlehanded sailing. Ready for living aboard / cruising with some work to keep occupied. Currently in Davao, Philippines.

LOA: 10m (design is 28ft, storage at the stern have been added) Draft: 1.45m Beam: 3m Gross weight: 7T Built in 2004 Headroom varies between 1.80-1.85m __________________________

Hull: full keel steel. Have been scrubbed regularly. Otherwise would need new antifouling. 4 anodes, 2 need replacement.

Engine: 25HP Lombardini 450h. Fuel tank 350L. +130L with fuel tanks on deck. Hydraulic dual steering.

Water tank: 2x200L. Water filter + one spare new. +40L on deck

Sails: Genoa (110-120%) on roller furling, removable forestay for staysail / stormsail, mainsail with 2 reefs, mizzen. Main boom equipped with port & starboard preventer. Single handling system on the pilot house so hoisting/dropping/reefing every sails can be done from the cockpit. 4 winches self tailing in the cockpit + 1 self tailing for the single handling system + 1 on the mizzen mast + 1 self tailing on the main mast. All Lewmar. Spinaker pole.

4 anchors: 1 Manson Supreme 45Lb/20Kg - 3 CQR (2 stainless) 50m chain 8mm + 30m line. Extra 30m chain + 10m stainless. Manual windlass.

Mooring line: made from 100m x 14mm nylon 1 year old. Around 60m of extra line polyester 14mm from last owner.

Storage all around the cockpit + very large one at the stern. Large storage on 2 levels in the V berth which can be extended to a large one bed. Many storages inside.

Polysterene 50mm insulation.

Toilet with curtain.

Inflatable 2.8m dinghy (leaks) + 8Hp Suzuki outboard (fly wheel must be replaced).

6 fenders. ___________________________

4x manual inflatable PFD 150 as new + 2 air cartridges 1x manual inflatable PFD 100 as new. 3x old type PFD 100. 3x harness as new. 2 man buoys.

Epirb with GPS (registered, 1 year old).

Iridium GO! With external antenna (in waterproof box, as new).

4 extinguishers, 4 Flares (1 year old), V sheet, alphabet flags, Spare retractable oars.

Bilge pumps 3700 GPH (on auto/manual switch) + 2060 GPH (T fitting missing to connect the last one. Separate auto/manual switch provided, not connected yet).

Sea anchor.

New plotter AIS class B on dedicated new VHF aerial. Support C-MAP charts. (Old plotter stored as still working).

External wifi deph sounder on pole at the stern.

VHF.

Autopilot (have stopped working recently, need to be checked).

Bosuns chair.

Autoradio. ________________________

2x 200W solar panels connected to MPPT Victron controller (bluetooth) 6 month old + portable 80W solar panel.

Wind vane (need fix as it provide low voltage).

Inverter 1x 600W modified signal + 1x 1500W/3000W pure signal (not connected).

Battery: Engine bank 2x50A, House bank#1 2x100A, House bank#2 6x200A (3 way 200A switch provided, not connected).

Fridge Waeco CF 40L (1 year old). I have studied to install it under the stairs between the pilot house and the living area.

Manual tap in the kitchen. The one in the bathroom have been removed.

LED everywhere connected to dimmers. White/red light in the cockpit. 2x Mast light.

3 LPG tanks, total 10Kg (enough for at least 2 or 3 months). Gaz alarm in the kitchen. Several gaz fittings.

Water hose and electrical extension lead. __________________________

Large range of hand tools in great condition, tapping set, rivet gun, Power tool: Drill, arc welder (with mask and electrodes), wood router, gaz and power soldering set, printer.

Large range of furniture to work onboard (spare blocks and line, sikaflex, spare engine oil + steering oil + coolant, tape, screws, bolts, sandpaper, plumbing things, electrical things, painting things, rags…).

Piano 88 keys with pedal.

Foldable trolley.

Full kitchen stainless furniture nicely stored.

Many blankets.

Many cloth and toys to trade/offer while cruising.

3 snorkeling set, 2 fins set, 1 female diving suit (fits me, male slim 1.85m). Fishing gear. __________________________

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Specs

Designer
Bruce Roberts
Builders
?
Associations
?
# Built
?
Hull
Monohull
Keel
Fin
Rudder
?
Construction
FG/Wood

Dimensions

Length Overall
25 0 / 7.6 m
Waterline Length
20 1 / 6.1 m
Beam
8 0 / 2.4 m
Draft
2 9 / 0.8 m
Displacement
4,660 lb / 2,114 kg
Ballast
1,980 lb / 898 kg

Rig and Sails

Type
Sloop
Reported Sail Area
256′² / 23.8 m²
Total Sail Area
256′² / 23.8 m²
Mainsail
Sail Area
116′² / 10.8 m²
P
24 1 / 7.4 m
E
9 7 / 2.9 m
Air Draft
?
Foresail
Sail Area
140′² / 13.1 m²
I
28 1 / 8.6 m
J
10 0 / 3.1 m
Forestay Length
29 9 / 9.1 m

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?
Engine Hours
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
6.6 kn
Classic: 6.01 kn

Hull Speed

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Formula

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL

6.6 knots
Classic formula: 6.01 knots
Sail Area/Displacement
14.7
<16: under powered

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

Formula

SA/D = SA ÷ (D ÷ 64)2/3

  • SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D: Displacement in pounds.
14.68
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
42.5
>40: stiffer, more powerful

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Formula

Ballast / Displacement * 100

42.48
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
255.8
200-275: moderate

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

Formula

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
255.77
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
20.8
20-30: coastal cruiser

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Formula

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)

  • D: Displacement of the boat in pounds
  • LWL: Waterline length in feet
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet
20.76
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
1.9
<2.0: better suited for ocean passages

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

Formula

CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
1.92
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

One of most popular of the designers plans. It is said that more than 1000 have been built.

This listing is presented by Sailboat-Cruising.com. Visit their website for more information or to contact the seller.

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