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1993 Ron Holland designed 11 Meter One Design
Location: Marina Del Rey, California
These boats were built in Florida and Sweden (2 molds) as one of the very first UDLB fleets and were seriously popular in SF through the 90s. It’s still an incredible value for a race boat, and also happens to be a killer daysailer. 33′ boat and 3500 lbs = fun!
A phenomenally fun to drive race boat, well balanced and light. Regularly surfs in 12+ knots wind, planing in 20+; we’ve recorded boat speeds in the low/mid 20’s a few times (see one screenshot above). Loves to run deep. Frequently the only boat moving in light air. Actively campaigned and successful SoCal boat, turnkey ready to rock w/ PHRF SoCal (75/72/66) and ORR-ez certificates.
This hull is quite firm, 3 year old Awlgrip above waterline, epoxy below. She’s on a Hydrohoist so effectively drysailed. Keel and Rudder were re-templated in 2018.
Has been on the podium of most every race in Southern California in the past few years.
Race Equipment:
2015 Carbon boom & spin pole, Forte 2018 Epoxy bottom, foils fared, awlgrip above waterline Harken self-tacking jib track Harken windward sheeting traveller Running rigging is current & mostly new. 2x Lewmar 16/32 speed winches self-tailing 1x Harken 16 speed winch 2018 Vang-master Standing rigging is 2019, w/ 2022 intermediates
Nissan 6HP outboard (6.5kt)
Electronics:
Instruments are Nexus Marine (now Garmin) 3 on mast
2 at driver’s seat (1x side) with controls Nexus Server
Nexus Race Box (displays polars & start line calcs) Nexus Speed/Temp Transducer Airmar Depth Sounder (non-through hull) Garmin G-Wind twin-fin wired at masthead Raymarine e7 chart-plotter w/ Layline calcs Raymarine ST1000 tiller pilot
ACER laptop computer included with Raymarine & Nexus software.
Sails:
All Ullman 2017 Class Legal Main (full batten, heavy air) Fiberpath 2019 PHRF Main (light air) Fiberpath 2019 #3 Jib (Class legal) 2019 #1 Genoa (155%) 2017 Light #1 Drifter (Code 0 cloth) 2019 S2 AP Spinnaker (class legal) 2017 S2 Fractional AP (3’ removed from center seam, used for 24+ knots windspeed)
2018 Code Zero (used less than 12 times)
Hydrohoist available separately.
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.
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
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.
SA/D = SA ÷ (D ÷ 64)2/3
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.
Ballast / Displacement * 100
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.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
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.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
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.
CSV = Beam ÷ ³√(D / 64)
Spin Area 185m2/1990 sq. ft.
Specifically designed for ease of road transport. (2 part mast is standard)
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