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Banner 34
Designer: I. Neilson  ·  Builder: I.n. Fiberbåde  ·  First built: 1984
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About the Banner 34

With limited documentation available, the Banner 34 represents one of the more enigmatic sailboats in the 34-foot range, making it a challenging vessel to research for prospective buyers. What information exists suggests this was likely produced during the 1970s or 1980s era when numerous smaller manufacturers were experimenting with fiberglass construction techniques and hull designs. Based on its size classification, the Banner 34 would have been positioned as a mid-sized cruising sailboat, suitable for coastal sailing and potentially extended cruising adventures for a small crew or couple. The 34-foot length places it in a sweet spot for sailors seeking more space and comfort than smaller boats provide while maintaining manageable handling characteristics. Without detailed specifications readily available, potential buyers should exercise particular diligence in surveying any Banner 34 under consideration. The scarcity of information could indicate limited production numbers, which might present challenges for finding replacement parts or accessing specialized knowledge for maintenance and repairs. Those interested in this model would benefit from connecting with sailing communities and forums where owners might share firsthand experiences about the boat's sailing characteristics, build quality, and long-term reliability.

Core Dimensions
LOA (Length Overall) 34.00 ft / 10.36 m
LWL (Waterline Length) 24.28 ft / 7.40 m
Beam 12.57 ft / 3.83 m
Max Draft 6.89 ft / 2.10 m
Displacement 9,887.00 lb / 4,485 kg
Ballast 4,586.00 lb / 2,080 kg
Sail Area (Reported) 480.00 ft² / 44.59 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer I. Neilson
Builder I.N. FIBERBÅDE
First Built 1984
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
16.73
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
19.3
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
2.35
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
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
1.66
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. 1.0
Rig Dimensions
I (Foretriangle Height) 36.42
J (Foretriangle Base) 10.96
P (Mainsail Luff) 39.37
E (Mainsail Foot) 14.27
SA Fore 199.58
SA Main 280.9
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