Bosco Performance

Hull Speed

The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.

5.4 kts

A displacement hull pushes a bow wave whose speed is limited by the waterline length.

Performance Ratios

Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.

Ballast / Displacement

37.3%

Typical cruising ballast — balanced stability and motion underway.

Displacement / Length

249

Moderate — a good balance of speed and load-carrying ability.

Comfort Ratio

14.3

Quick, snappy motion — better for day sails and racing than long passages.

Hull Speed

5.4kts

Pounds/Inch Immersion

3lbs

Weight needed to sink the hull one inch — loading sensitivity.

Motion & Offshore Suitability

Two ratios that matter most when you're planning passages — how the boat feels in a seaway, and whether the hull geometry is suitable for open ocean.

Comfort Ratio

14.3

Quick, snappy motion — better for day sails and racing than long passages.

Under 20 — Snappy, racing motion

20–30 — Acceptable coastal

30–40 — Good offshore comfort

Over 40 — Very comfortable offshore

PHRF Fleet Position

Where the Bosco sits on the PHRF handicap spectrum — lower numbers mean faster boats.

Cruiser 150–210

Heavy Cruiser 210–300

Rhodes 19 261s/nm

Montego 19 288s/nm

How It Compares

Side-by-side with the boats most often cross-shopped against the Bosco.

	Bosco	Com Pac 19	Corinthian 19 Alberg	Mariner 19 Fk	Montego 19	Rhodes 19
Dimensions
LOA	19.2	19.0	19.5	19.2	19.5	19.2
LWL	—	16.3	14.5	17.8	17.8	17.8
Beam	7.7	7.0	6.5	7.0	7.2	7.0
Displacement	2	2	2	1	1	1
Ballast	904	800	1	—	—	415
Sail Area	—	145	193	184	167	175
Performance
PHRF	—	—	—	—	288	261
SA/Disp	—	14.7	15.9	23.2	20.0	22.9
Bal/Disp	37.3	40.0	40.4	—	—	—
Comfort	14.3	13.5	21.7	9.1	9.5	8.6
Capsize	—	2.22	1.86	2.49	2.48	2.53
Hull Speed	5.4	5.4	5.1	5.7	5.7	5.7