The Horizon Cat started life as the Herreshoff America, designed by Halsey Herreshoff and built by Nowak and Williams. The Hutchins brothers of Com-Pac yachts bought the tooling and redesigned the boat to fit it into their family
of shoal-draft cruising yachts. The hull
form remained the same, but they added a shallow keel
, and modified the deck
The New England PHRF unofficially* rates the Herreshoff America “U360"
➥ PHRF New England - Handicapping - Base Handicaps
You might try searching or asking the Com-Pac Yacht Owners Association:
➥ Horizon Cat
Horizon Cat Performance Indicators by Com-Pac Yachts/The Hutchins Co.
D/L 198, SA/D 17.8, Comfort Ratio 12.0, CapsizeRatio 2.45, L/B 2.4
You might be interested in the CatBoat Sailing Manual
* Official PHRF New England
Handicaps are given to true cruiser/racer type boats. In general this means that the boat has the equipment
required by the Offshore Racing
for Category 4. A quick indication of likely conformance is if the boat has full lifelines
and furniture inside. It must also have auxiliary power.
In cases where the boat is not a true cruiser/racer, an Unofficial Handicap may be given. This assists clubs that might allow a boat to race
more informal races. These Unofficial Handicaps can never be used in a serious race
. If the Notice of Race says that ORC Cat 4 equipment is required, the Unofficial Handicap is not acceptable.
Unofficial certificates have the word written on the certificate, usually in several places. The Valid List will show a "U" along with the handicap for Unofficial Handicaps. On the base handicap list, "U" follows the boat type designation for boats normally not eligible for an Official certificate.
I certainly admire your optimism & ambition.