Seller's Description
Northern 25 sailboat for sale This type of layout makes the eating and food preparation area very efficient. The dinette table drops down to form a double berth and there is a long, 6’ 4” quarter berth aft of the galley on starboard. The galley consists of an insulated ice chest, dish rack, sink with manual fresh water and a two-burner alcohol stove hidden in a drawer when not in use. There is also plenty of storage under the sink in a sliding cupboard. Going forward between two bulkheads, there is a head to port and a full hanging locker across from it on starboard. Each bulk¬ head has a curtain and when both are closed at the same time it forms a rather large enclosed head area, which is completely private and accessible from the forward cabin or main saloon. The forward cabin has a 6’3″ V-berth and once the filler piece is added, there is a comfortable double bunk. Above each side of the V¬berth is a shelf for stowage and a 12-volt reading light. Overhead, is a hatch made from translucent fibreglass. Access to the main cabin is easy with a short, two-step companionway ladder; once below, there is headroom for those who stand at six feet. The interior is enhanced by large fixed windows on port and starboard, and there is plenty of storage under all the berths for extended cruising supplies. In all, the accommodation will sleep four comfortably, but if you have smaller people onboard the dinette double is adequate for two, although I would really consider it a more comfortable twin. Location of boat, only nearest town, state - Edmonton, Alberta or phone 78-729-5748
Specs
- Designer
- Philip Rhodes
- Builder
- Northern Yachts Ltd.
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Fin
- Rudder
- Skeg
- Construction
- FG
Dimensions
- Length Overall
- 25′ 3″ / 7.7 m
- Waterline Length
- 19′ 3″ / 5.9 m
- Beam
- 8′ 2″ / 2.5 m
- Draft
- 4′ 0″ / 1.2 m
- Displacement
- 5,100 lb / 2,313 kg
- Ballast
- 2,300 lb / 1,043 kg (Lead)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 304′² / 28.2 m²
- Total Sail Area
- 304′² / 28.2 m²
Mainsail
- Sail Area
- 143′² / 13.2 m²
- P
- 28′ 6″ / 8.7 m
- E
- 10′ 0″ / 3.1 m
- Air Draft
- ?
Foresail
- Sail Area
- 161′² / 15 m²
- I
- 32′ 3″ / 9.9 m
- J
- 10′ 0″ / 3.1 m
- Forestay Length
- 33′ 9″ / 10.3 m
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
6.0 kn
Classic: 5.88 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
- Sail Area/Displacement
-
16.4
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.
- Ballast/Displacement
-
45.1
>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
- Displacement/Length
-
318.7
300-400: heavy
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
- Comfort Ratio
-
22.7
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
- 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
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