Seller's Description
Sale Pending
Mint NEW set of Ullman racing sails
The B-25 is one of the first sportboats designed by Leif Beiley to be light and fast at 2000lbs, and easily trailerable. Hull #10 is from the first batch of boats that used kevlar before the later production boats used other composites in construction, so she is light, rigid and very fast.
She has a proven race pedigree, having captured the Alberta Cup three years in a row. She moves on a whisper of wind, but needs a few people to hold her down in a blow. She’ll do 12knots in a good wind if you get the weight in the right place, so buckle up.
She trailer launches in about two feet of water, then the 800lb keel lowers on a removable gantry and bolts down for the season, drawing 5 feet, making her idea for lake use. To my knowledge she has always been a freshwater boat.
The newer green hull paint has a few chips, but boat comes with a sealed can of 2-part Interlux for touch ups. Tandem trailer was fully rehabbed two years ago with brand new tires.
Willing to deliver to Alberta/Montana border for a US buyer.
Equipment: She was extensively refitted between 2016-2018 with: a new Phils Foils Carbon Fibre racing rudder; new Tohatsu 4hp motor; sanded and refinished bottom with VC-17; sanded and refinished hull with 2-part epoxy paint; simple interior re-painted fresh white; new windows; most deck fittings resealed, many upgraded; new backstay flicker; new tiller and upgraded Lewmar 16 two-speed refurbished primary winches.
Sail inventory: Acquired 2020, barely used: Ullman FiberPath Black Aramid Main, used once Ullman FiberPath Black 155% Genoa, like new Ullman FiberPath Black 110% Jib, like new
Approx 2014: Quantum kevlar main, worn but usable Quantum kevlar 145% genoa, worn but usable Quantum kevlar 100% blade, good condition
Unknown age: 0.5oz Ullman spinnaker, working condition *0.75oz North Sails spinnaker, working condition
She is ready to go fast.
Specs
- Designer
- Leif Beiley
- Builder
- Bboats (USA)
- Associations
- ?
- # Built
- 50
- Hull
- Monohull
- Keel
- Lifting
- Rudder
- ?
- Construction
- FG
Dimensions
- Length Overall
- 25′ 0″ / 7.6 m
- Waterline Length
- 21′ 3″ / 6.5 m
- Beam
- 8′ 3″ / 2.5 m
- Draft
- 1′ 4″ / 0.4 m — 4′ 11″ / 1.5 m
- Displacement
- 2,000 lb / 907 kg
- Ballast
- 800 lb / 363 kg
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 273′² / 25.4 m²
- Total Sail Area
- 280′² / 26 m²
Mainsail
- Sail Area
- 154′² / 14.3 m²
- P
- 27′ 11″ / 8.5 m
- E
- 10′ 11″ / 3.4 m
- Air Draft
- ?
Foresail
- Sail Area
- 126′² / 11.7 m²
- I
- 27′ 11″ / 8.5 m
- J
- 8′ 11″ / 2.7 m
- Forestay Length
- 29′ 4″ / 9 m
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 1
Calculations
- Hull Speed
-
9.3 kn
Classic: 6.18 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
-
27.5
>20: high performance
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
-
40.0
>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
-
92.9
<100: Ultralight
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
-
8.1
<20: lightweight racing boat
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
-
2.7
>2.0: better suited for coastal cruising
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
This listing is presented by SailboatListings.com. Visit their website for more information or to contact the seller.
