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Pandora 700
Designer: E. G. Van De Stadt  ·  Builder: Rydgeway Marine Uk  ·  First built: 1976
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About the Pandora 700

Designed by the renowned Dutch naval architect E. G. Van De Stadt and built by Rydgeway Marine UK from 1976 to 1991, this compact 23-footer represents classic European small yacht design philosophy. Van De Stadt's influence shows clearly in the boat's balanced proportions and seaworthy characteristics, making it a capable coastal cruiser despite its modest size. The masthead sloop rig provides straightforward sail handling, while the fin keel with rudder on skeg configuration offers a good compromise between performance and directional stability. With a displacement of 2,500 pounds and substantial ballast ratio, the Pandora 700 carries herself well in a seaway and provides reassuring stability for coastal adventures. The boat's comfort ratio of 14.66 indicates a relatively quick motion that responds well to sea conditions, making it better suited for day sailing and coastal cruising rather than extended offshore passages. The capsize screening formula of 2.04 suggests reasonable stability characteristics for its size class. This design appeals to sailors seeking a manageable yacht that doesn't compromise on sailing qualities. The Pandora 700 works well for couples or small families looking to explore coastal waters with confidence, offering Van De Stadt's trademark blend of European styling and practical seamanship.

Core Dimensions
LOA (Length Overall) 23.00 ft / 7.01 m
LWL (Waterline Length) 18.75 ft / 5.72 m
Beam 6.92 ft / 2.11 m
Max Draft 3.75 ft / 1.14 m
Displacement 2,500.00 lb / 1,134 kg
Ballast 980.00 lb / 445 kg
Sail Area (Reported) 173.00 ft² / 16.07 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer E. G. Van de Stadt
Builder Rydgeway Marine UK
First Built 1976
Last Built 1991
Associations Pandora Boat Owner Association
Owner Reviews

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Performance Ratios
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
15.06
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
39.2
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
169.31
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
14.66
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
2.04
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 5.80 kn
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
2.82
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 463.61 pounds/inch
SA/Displacement (Calc) Calculated Sail Area to Displacement ratio using actual measured sail dimensions rather than reported values. More precise than the reported SA/Disp figure. 15.05
Rig Dimensions
I (Foretriangle Height) 24.40 ft / 7.44 m
J (Foretriangle Base) 8.00 ft / 2.44 m
P (Mainsail Luff) 21.33 ft / 6.50 m
E (Mainsail Foot) 7.05 ft / 2.15 m
SA Fore 97.60 ft² / 9.07 m²
SA Main 75.19 ft² / 6.99 m²
SA Total (100%) 172.79 ft² / 16.05 m²
Est. Forestay Length 25.68 ft / 7.83 m
How It Compares

vs. Cobra 700, Pageant 23 Westerly, Pearson 23

This boat Similar boats
Dimensions
LOA
Pandora 700 ★
23.0 ft
Cobra 700
23.0 ft
Pageant 23 Westerly
23.0 ft
Pearson 23
23.0 ft
LWL
Pandora 700 ★
18.8 ft
Cobra 700
18.3 ft
Pageant 23 Westerly
19.0 ft
Pearson 23
20.0 ft
Beam
Pandora 700 ★
6.9 ft
Cobra 700
8.8 ft
Pageant 23 Westerly
8.0 ft
Pearson 23
8.0 ft
Displacement
Pandora 700 ★
2 lbs
Cobra 700
4 lbs
Pageant 23 Westerly
4 lbs
Pearson 23
3 lbs
Ballast
Pandora 700 ★
980 lbs
Cobra 700
2 lbs
Pageant 23 Westerly
2 lbs
Pearson 23
1 lbs
Sail Area
Pandora 700 ★
173 sq ft
Cobra 700
245 sq ft
Pageant 23 Westerly
Pearson 23
238 sq ft
Performance
SA / Displacement (higher = more powerful)
Pandora 700 ★
15.1
Cobra 700
15.0
Pageant 23 Westerly
Pearson 23
16.6
Ballast / Disp (higher = stiffer)
Pandora 700 ★
39.2 %
Cobra 700
Pageant 23 Westerly
48.7 %
Pearson 23
37.1 %
Comfort Ratio (higher = more comfortable offshore)
Pandora 700 ★
14.7
Cobra 700
18.5
Pageant 23 Westerly
Pearson 23
16.3
Capsize Screening (lower = safer)
Pandora 700 ★
2.04
Cobra 700
2.16
Pageant 23 Westerly
Pearson 23
2.11
Displacement / Length (lower = lighter)
Pandora 700 ★
169
Cobra 700
Pageant 23 Westerly
279
Pearson 23
195
Hull Speed
Pandora 700 ★
5.8 kts
Cobra 700
5.7 kts
Pageant 23 Westerly
Pearson 23
6.0 kts
Speed Number (higher = faster)
Pandora 700 ★
2.8
Cobra 700
1.5
Pageant 23 Westerly
Pearson 23
2.6
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