Truc 18 Performance

Hull Speed

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

5.3 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

26.4%

Light ballast — tends to be tender; reef earlier than the numbers suggest.

Displacement / Length

98

Ultralight — responsive and fast, but carries less stores.

Comfort Ratio

5.1

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

Hull Speed

5.3kts

Pounds/Inch Immersion

2lbs

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

5.1

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 Truc 18 sits on the PHRF handicap spectrum — lower numbers mean faster boats.

Cruiser 150–210

Heavy Cruiser 210–300

Catalina 18 289s/nm

How It Compares

Side-by-side with the boats most often cross-shopped against the Truc 18.

	Truc 18	Catalina 18	Dart Hawk	Hobie Wild Cat F18	Speed Feet 18 Cb	Topcat K1
Dimensions
LOA	18.0	18.0	18.0	18.0	18.0	18.0
LWL	—	15.8	—	—	18.0	—
Beam	7.6	7.8	8.5	8.5	8.2	8.2
Displacement	793	1	397	397	926	385
Ballast	209	500	—	—	—	—
Sail Area	—	152	206	454	253	375
Performance
PHRF	—	289	—	—	—	—
SA/Disp	—	19.9	61.1	134.6	42.7	113.6
Bal/Disp	26.4	37.0	—	—	—	—
Comfort	5.1	8.2	—	2.2	4.9	—
Capsize	—	2.81	—	4.63	3.35	—
Hull Speed	5.3	5.3	—	5.2	5.7	—