Introducing the Farr B/One

Sail1Design is pleased to announce our newest sponsor and team member, Farr Yacht Design/Farr Yacht Sales. We are also very excited to introduce the newest member of the Farr sailing team, the B/One. I had the pleasure yesterday of watching one sail in the first Annapolis Frostbite Series race, and the boat looks fast, powerful, simple to sail, and holds great potential for a one-design class. For more information on this new boat, please contact Ian Gordon at Farr Yacht Sales.  Stay tuned to Sail1Design as we plan to test sail the boats and have a full sailing report soon!

 

B/One flying into Annapolis Harbor, 4-Sept-2012

Designer’s Comments – February 2012 Overview

The B/One is an exciting, new 7m (23ft) trailer-able, one-design sport boat currently under

construction by Bavaria Yachtbau in Giebelstadt, Germany. Bavaria asked Farr Yacht Design

for an economical one-design that would impress advanced sailors with excellent performance,

yet be easy to handle and operate for the weekend sailor and his/her family. Farr Yacht Design,

the designers of the B/One, have met these requirements with a technologically advanced hull

shape developed from the Volvo Open 70 and Farr 400, an easy to use sailplan, and interior

features you would expect to find on a boat 3 feet longer. The B/One has the power to weight

ratio to perform well both upwind and downwind. The 34m2 (377ft2) of upwind sail area is set

on an aluminum mast. The 48m2 (517ft2) asymmetrical spinnaker flies on a 1.3m (4.3ft)

retractable bow sprit providing plenty of downwind horsepower. The keel and rudder are

retractable making docking or anchoring in shallow water possible. The retractable keel also

makes slip launching a breeze and allows for very low trailering heights, so that the boat can be

towed by a relatively small vehicle. The B/One promises to be an absolute delight to sail and

operate with unique features from bow to stern.

 

Hull and Deck

The hull shape clearly shows the influence, and is a direct descendant, of the Farr 400 and Volvo

Open 70 in its full bow shape, broad and powerful stern sections and chined aft topsides. These

features combine to provide exceptional speed, optimal balance and solid, dependable handling

in all conditions. The maximum beam limit for trailering (2.5m) is seamlessly integrated into the

hull and deck detailing to conceal fittings, provide a smooth, rounded deck edge and maximize

crew weight stability.

Inspired by the sleek look of larger, modern high-performance one designs such as the Farr 400,

the deck is flush with only a slightly raised cabin top to create the necessary headroom down

below and contain the required sailing functions on deck. The cockpit is wide and open

providing plenty of room for crew maneuvers during racing or seating for friends and family on a

weekend harbor cruise. Sail handling is performed without winches or excessive hardware, but

still providing all the necessary sail controls demanded by advanced one-design sailors,

including adjustable jib tracks and a powerful boomvang. The large, round foredeck hatch

provides ample light and ventilation to the interior, and serves as the opening for launching and

retrieving the spinnaker via string takedown system. The waterproof companionway cover

hinges completely forward providing a large opening to the interior. The cover can also be

partially opened to cover the horizontal surface of the companionway while still providing

ventilation to the interior via the open vertical surface.

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Rig and Sailplan

The single spreader, tapered aluminum rig has swept spreaders and does not require a backstay.

Calibrated shroud turnbuckles allow for easy and quick tuning changes. The mast is deck stepped

for quick and easy rigging. Mast bend is controlled with a powerful 16:1 boomvang. The jib is

set on a furler for ease of handling. The square-headed mainsail features a generous roach profile

for maximum sailplan efficiency. The bowsprit retracts into an external recess in the foredeck,

thereby eliminating the possibility of water ingress into the boat, so common on other boats of

this size.

Interior

For cruising oriented customers the interior features accommodation for 4. There is a generous

V-berth forward and 2 pipe berths with seated headroom on either side of the keel trunk. Space

forward of the mast allows for a chemical toilet, while volume below the companionway

accommodates a removable cooler. To keep racing weight low, all of the aforementioned

interior items, including the joinery for the V berth, are easily removable. The acrylic

companionway and keel opening cover both provide ample light to the interior.

Appendage

The keel/bulb arrangement on the B/One is a T-keel style configuration, as featured on most of

today’s high tech racing yachts. The keel’s down draft is 1.65m (5.41ft) and may be raised for

docking, anchoring, or trailering to an up draft of only 0.4m (1.31ft). In its raised position the

keel passes through a separate opening in the deck, forward of the main companionway, making

it possible to completely lock the companionway cover closed thereby securing the boat with the

keel raised. The retractable rudder is supported inside a transom mounted cassette and may be

raised for docking or anchoring in shallow waters.

Construction

The hull shell is hand laminated using E-glass chopped strand mat and multi-axial fabrics over

Coremat with additional uni-directional reinforcements used in high stress areas. The deck shell

is hand laminated using E-glass chopped strand mat and multi-axial fabrics over a PVC foam

core with additional uni-directional and multi-axial reinforcements used in high stress areas. The

hull shell support is provided by a simple one-piece structural liner composed of transverse

floors and a centerline longitudinal. The keel trunk is integrated into the structural liner allowing

for easy movement through the interior.

One-design concept

The B/One is designed and built to maintain a strict one-design standard with a single sail

supplier and minimal modifications permitted. All B/One boats will be built by Bavaria

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Yachtbau, using the highest quality control standards. Farr Yacht Design has drafted the Class

Rules to ensure all boats are built and maintained to these strict standards and a level playing

field on the race course.

 

Specifications

LOA: 7.09 m/23.26 ft

DWL: 6.36 m/20.86 ft

Beam: 2.50 m/8.20 ft

Draft: 1.65 m/5.41 ft

Displacement: 1,030 kg/2270 lbs

Ballast: 340 kg/749 lbs

IM: 8.80 m/28.87 ft

J: 2.61 m/8.56 ft

P: 8.76 m/28.74 ft

E: 3.48 m/11.42 ft

ISP: 9.00 m/29.52 ft

TPS: 3.91 m12.83 ft