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1984 Schock Wavelength 24

Lake Murray, South Carolina, United States
$8,000 USD

Schock Wavelength 24, 1984 sailboat for sale Racing sailboat has Quantum sails: custom fitted mylar+Kevlar 155% genoa (excellent, cost about $2000), 130% genoa (fair), mylar+carbon fiber 100% genoa (excellent), mylar+kevlar main (good), several spinnakers (varied condition), Harkin roller furler for genoa (excellent, cost about $2000), two recently installed Lewmar genoa self-tailing winches (excellent, cost about $1200) for genoa sheets, TickTack Race Master connects wirelessly to Micronet thru-hull combo paddle wheel speed and depth sensor unit (excellent, cost $1400) contains flux-gate compass which is accurate to 1 degree and solar powered. RayMarine Tiller Pilot autopilot (like new, cost $390). Boat has “rod” rigging which is more costly than standard stainless cables. Has air pressure flushed PortaPotti mounted to floor with privacy curtain. No kitchen stuff. Sleeps 2. LED lights all-around. Has Yamaha long shaft, two stroke, two cylinder outboard which pull starts easily and is quieter and smoother than a small Honda outboard. Motor turns full circle. Has only Forward and Neutral gears.

Bottom needs sanding, small blister fixes, and repaint with Interlux VC17. Also needs weathered teak companion-way strips replaced soon. Otherwise it is ready to race competitively with a PHRF of 168. Looks fast and is fast. Similar weight (2500 lbs), dimensions, draft (4.5 feet), sail area, and PHRF (168) to a J-24 (162) but more comfortable, easier to use, and safer than the usual J-24.

Twin axle trailer with surge brakes on two front wheels. Five tires less than 1 year old. Double tongue extension reaches farther down launch ramp than most. Ladder and winch mount post. Small winch. Trailer is ugly but road worthy.

Firm price of $8000 as is. Just the priced removable items above, which do not include the hull, rigging, trailer or outboard motor, add up to $2000 + $2000 + $1200 + $1400 + $390 = almost $7000.

The boat is priced for quick sale. Will consider trade for 30+ foot boat.

Sailboat data

Boat is on trailer at Columbia Sailing Club on Lake Murray close to Columbia, S. Carolina, USA for maintenance.

or phone (803) 979-three-seven-one-four

This listing is presented by SailingTexas.com. Visit their website for more information or to contact the seller.

View on SailingTexas.com


Paul Lindenberg
Schock W.D.
Wavelength 24 Owners Group
# Built


Length Overall
24 0 / 7.3 m
Waterline Length
20 4 / 6.2 m
8 11 / 2.7 m
4 5 / 1.4 m
2,500 lb / 1,134 kg
1,100 lb / 499 kg (Lead)

Rig and Sails

Reported Sail Area
288′² / 26.8 m²
Total Sail Area
288′² / 26.8 m²
Sail Area
140′² / 13 m²
27 3 / 8.3 m
10 2 / 3.1 m
Air Draft
Sail Area
148′² / 13.8 m²
31 3 / 9.5 m
9 6 / 2.9 m
Forestay Length
32 8 / 10 m

Auxilary Power

Fuel Type
Fuel Capacity
Engine Hours


Water Capacity
Holding Tank Capacity


Hull Speed
8.2 kn
Classic: 6.04 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.


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

8.15 knots
Classic formula: 6.04 knots
Sail Area/Displacement
>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.


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.
<16: under powered
16-20: good performance
>20: high performance
>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.


Ballast / Displacement * 100

<40: less stiff, less powerful
>40: stiffer, more powerful
100-200: light

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.


D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
<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.


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
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
>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.


CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
<2: better suited for ocean passages
>2: better suited for coastal cruising


In 2005, the WAVELENGTH 24 was brought back into production.



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