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Cambridge Cadet
Designer: Winthrop Warner  ·  Builder: Cambridge Shipbuilders (Usa)  ·  First built: 1947
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About the Cambridge Cadet

Finding detailed information about the Cambridge Cadet can be challenging, as this sailboat remains one of the more obscure models in sailing databases. What little documentation exists suggests this was likely a smaller recreational sailboat, possibly designed for training purposes or light recreational sailing given its "Cadet" designation. The naming convention indicates this boat may have been intended for novice sailors or sailing instruction programs, similar to other cadet-class vessels that have served sailing schools and yacht clubs over the decades. Without comprehensive specifications readily available, the Cambridge Cadet appears to have had limited production or a very specific regional market presence. For potential buyers researching this model, the scarcity of information presents both challenges and opportunities. While it's difficult to assess performance characteristics or compare specifications against contemporary designs, boats with limited documentation sometimes represent unique finds for sailors seeking something distinctive. The Cambridge name suggests possible connections to established boatbuilding regions, though the exact manufacturer and production timeline remain unclear. Prospective owners should approach any Cambridge Cadet opportunity with thorough hands-on inspection, given the limited reference materials available for comparison and evaluation.

Core Dimensions
LOA (Length Overall) 28.58 ft / 8.71 m
Beam 8.58 ft / 2.62 m
Max Draft 4.10 ft / 1.25 m
Displacement 15,500.00 lb / 7,031 kg
Ballast 4,500.00 lb / 2,041 kg
Design & Construction
Hull Type Long Keel
Rigging Type Fractional Sloop
Construction Wood
Designer Winthrop Warner
Builder Cambridge Shipbuilders (USA)
First Built 1947
Owner Reviews

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Performance Ratios
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
29.03
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
482.66
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
53.11
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. 6.6 kn
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. 4.47 pounds/inch
Rig Dimensions
I (Foretriangle Height) 29.03
P (Mainsail Luff) https://sailboatdata.com/forums/topic-tag/cambridge-cadet/
E (Mainsail Foot) Winthrop Warner
How It Compares

vs. Columbia 29, Triangle One Design, Yachting World Seahorse

This boat Similar boats
Dimensions
LOA
Cambridge Cadet ★
28.6 ft
Columbia 29
28.5 ft
Triangle One Design
28.5 ft
Yachting World Seahorse
28.6 ft
LWL
Cambridge Cadet ★
Columbia 29
22.5 ft
Triangle One Design
18.5 ft
Yachting World Seahorse
25.3 ft
Beam
Cambridge Cadet ★
8.6 ft
Columbia 29
8.0 ft
Triangle One Design
7.5 ft
Yachting World Seahorse
8.3 ft
Displacement
Cambridge Cadet ★
15 lbs
Columbia 29
7 lbs
Triangle One Design
5 lbs
Yachting World Seahorse
6 lbs
Ballast
Cambridge Cadet ★
4 lbs
Columbia 29
3 lbs
Triangle One Design
2 lbs
Yachting World Seahorse
2 lbs
Sail Area
Cambridge Cadet ★
Columbia 29
388 sq ft
Triangle One Design
407 sq ft
Yachting World Seahorse
366 sq ft
Performance
SA / Displacement (higher = more powerful)
Cambridge Cadet ★
Columbia 29
16.4
Triangle One Design
22.3
Yachting World Seahorse
17.8
Ballast / Disp (higher = stiffer)
Cambridge Cadet ★
29.0 %
Columbia 29
42.2 %
Triangle One Design
Yachting World Seahorse
Comfort Ratio (higher = more comfortable offshore)
Cambridge Cadet ★
53.1
Columbia 29
29.5
Triangle One Design
24.6
Yachting World Seahorse
21.0
Capsize Screening (lower = safer)
Cambridge Cadet ★
Columbia 29
1.64
Triangle One Design
1.75
Yachting World Seahorse
1.84
Displacement / Length (lower = lighter)
Cambridge Cadet ★
482
Columbia 29
290
Triangle One Design
Yachting World Seahorse
Hull Speed
Cambridge Cadet ★
6.6 kts
Columbia 29
6.4 kts
Triangle One Design
5.8 kts
Yachting World Seahorse
6.7 kts
Speed Number (higher = faster)
Cambridge Cadet ★
Columbia 29
1.8
Triangle One Design
1.8
Yachting World Seahorse
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