Design and Construction
The Impulse 26 measures 26 feet overall, with a 21.58-foot waterline and an 8.42-foot beam. Her fiberglass hull displaces 2,750 pounds.
Both the hull and deck are solid fiberglass. The fin keel carries 1,305 pounds of lead ballast, giving the boat a ballast ratio of 47 percent against displacement. Draft varies from 4.59 to 4.89 feet depending on load, allowing her to enter shallow marinas that larger fin-keelers cannot reach.
A length-to-beam ratio of 3.06 and about 215 square feet of wetted surface describe a narrow, easily driven hull. Theoretical displacement hull speed is 6.2 knots. Her immersion rate is 642 pounds per inch, which means she loads predictably.
The underwater profile combines the lead-ballasted fin keel with a spade rudder, a configuration that favors responsive steering.
Rig and Handling
The fractional-sloop sail plan totals 327 square feet, producing a high sail-area-to-displacement ratio of 26.65. Yachtdatabase’s review found that the Impulse 26 carries more rig than 100% of all similar sailboats, indicating that she is significantly overrigged for her length and displacement.
Her control-line inventory is extensive. The mainsail, jib/genoa, and spinnaker halyards each require 86.3 feet of 5/16-inch line. The mainsheet is a 65-foot run of 3/8-inch line, while the genoa sheets are each 26 feet of 3/8-inch line. The cunningham, kicking strap, and clew outhaul each specify 5/16-inch line.
That hardware density, paired with the large sail plan, suggests a boat built to be sailed hard and trimmed precisely. It also calls for an attentive hand.
Accommodations
No source specifies the interior arrangement. Berth count, galley placement, and head location are all unverified. With an 8.42-foot beam, the Impulse 26 has a modest footprint below.
Verdict
The Impulse 26 is a light, narrow, solidly built fractional sloop with a sail plan and control-line inventory that outgun everything in her class. She is quick by displacement-hull math and draws little enough to broaden her cruising grounds. However, her overrigged nature demands attention, and her brief production run makes surviving examples scarce.
Pros
- Lead-ballasted fin keel with a 47 percent ballast ratio, making for a stiff, predictable 26-footer
- Draft of less than 4.9 feet, allowing access to marinas that larger keelboats cannot enter
- Significantly overrigged for her size, with a full, spinnaker-capable control inventory
Cons
- Only about 40 built from 1984 through 1987, so examples are uncommon
- Unspecified interior arrangement leaves accommodations unverified
- Light 2,750-pound displacement and 215 square feet of wetted surface suit calm-water use more than heavy going
