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This boat is in a slip in Lake Lewisville, TX.
Pluses: Elec motor and nice trailer
Contact BabsBoats@gmail.com $14,000
Equipment: Electric motor: Torqueedo 1003c (Retail: $2,499) and extra large battery (Retail: $1,099) and it has a nice Torqueedo travel bag (Retail: $299), for the motor and battery. Most recent botton job: 2023 New tiller extension makes it easy to reach the jib sheets from the helm New blue boat cushions LED cabin lights Red-green bow light and white stern light, with lightweight lithium battery New mahogany tow rails Lifelines Texas title Black mainsail and jib were made by Precision Sails ($7,000 new) Anchor Trailer: single axel, Wesco, good tires, registered in Texas, galvanized
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)
The extremely successful FIRST 21 series includes FIRST 210, FIRST 210 Spirit, FIRST 211,
FIRST 21.7, FIRST 21.7S, all sharing the same basic hull design.
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