Home/ Boats/ Thomas Knutson/ Indian Harbor Arrow Ss
Sailboat Specifications

Indian Harbor Arrow Ss

Fractional Sloop · Fin Keel W/Bulb

Designed by Sparkman & Stephens · Built by Thomas Knutson · First built 1946

+ Add to Compare
LOA 18.00 ft  ·  Beam 5.92 ft  ·  Displacement 1,425.00 lb  ·  Sail Area 160.00 ft²  ·  Fractional Sloop  ·  Fin Keel W/Bulb
About the Indian Harbor Arrow Ss Sailboat

With limited documentation available, the Indian Harbor Arrow Ss remains one of the more elusive sailboat models in maritime records. This scarcity of information suggests either a limited production run or a boat that operated within specific regional markets, making it a unique find for collectors and sailing enthusiasts interested in lesser-known designs. Based on the "Arrow" designation, this sailboat likely emphasized performance characteristics, as arrow imagery in boat naming typically suggests speed and directional precision. The "Ss" suffix may indicate a specific model variant or series designation, though without comprehensive records, the exact meaning remains unclear. Given the Indian Harbor connection, this vessel was likely designed with New England coastal waters in mind, suggesting suitability for protected bay sailing and near-shore cruising. The design probably incorporated practical features for local sailing conditions, balancing comfort with reasonable performance. For potential buyers, the Indian Harbor Arrow Ss represents an opportunity to own a distinctive sailboat with regional character. However, prospective owners should be prepared for challenges in sourcing parts or finding detailed maintenance information, making this boat best suited for experienced sailors comfortable with unique vessels requiring resourceful ownership approaches.

Dimensions & Specifications
LOA (Length Overall) 18.00 ft / 5.49 m
LWL (Waterline Length) 16.58 ft / 5.05 m
Beam 5.92 ft / 1.80 m
Max Draft 3.33 ft / 1.01 m
Displacement 1,425.00 lb / 646 kg
Ballast 500.00 lb / 227 kg
Sail Area (Reported) 160.00 ft² / 14.86 m²
Design & Construction
Hull Type Fin Keel w/bulb
Rigging Type Fractional Sloop
Construction Wood
Designer Sparkman & Stephens
Builder Thomas Knutson
First Built 1946
Owner Reviews

No owner reviews yet — be the first to share your experience with this boat.

Frequently Asked Questions

What is the Indian Harbor Arrow Ss's sail area to displacement ratio?

The Indian Harbor Arrow Ss has a Sail Area to Displacement ratio (SA/D) of 20.26. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Indian Harbor Arrow Ss's comfort ratio?

The Indian Harbor Arrow Ss has a Ted Brewer Comfort Ratio of 12.11. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Indian Harbor Arrow Ss safe for offshore sailing?

The Indian Harbor Arrow Ss has a Capsize Screening Formula value of 2.11. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Indian Harbor Arrow Ss?

The theoretical hull speed of the Indian Harbor Arrow Ss is 5.46 knots, calculated from its waterline length.

How much does a Indian Harbor Arrow Ss weigh?

The Indian Harbor Arrow Ss has a displacement of 1,425.00 lb and a length overall (LOA) of 18.00 ft.

Who designed the Indian Harbor Arrow Ss?

The Indian Harbor Arrow Ss was designed by Sparkman & Stephens, first built in 1946.