Seamaster Sailer 29 Performance & PHRF

The Seamaster Sailer 29 is moderately powered for comfortable coastal cruising, with a quick, snappy motion best suited to day sailing.

Hull Speed

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

6.7 kts

A displacement hull pushes a bow wave whose speed is limited by the waterline length. With a waterline of 25.0′, the Seamaster Sailer 29 tops out around 6.7 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.

1.34 × √25.0′ LWL = 6.7 kts

Performance Ratios

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

SA / Displacement

14.6

Moderate sail power — a capable coastal cruiser, not overpowered.

Comfort Ratio

18.5

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

Capsize Screening

2.15

Above the 2.0 offshore threshold — best suited for coastal and protected waters.

Hull Speed

6.7kts

Pounds/Inch Immersion

916lbs

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

18.5

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

Capsize Screening Formula

2.15

Above the 2.0 offshore threshold — best suited for coastal and protected waters.

Under 2.0 — Acceptable for offshore

Over 2.0 — Coastal / protected waters

PHRF Fleet Position

Where the Seamaster Sailer 29 sits on the PHRF handicap spectrum — lower numbers mean faster boats.

Cruiser/Racer 90–150

Cruiser 150–210

Heavy Cruiser 210–300

Lancer 30 2 192s/nm

Estimated Speed by Wind

Rough boat speed estimates at different true wind speeds and points of sail — derived from hull speed, SA/D, and displacement, not measured polars.

Point of Sail	6 kts TWS	10 kts TWS	15 kts TWS	20 kts TWS
Close-hauled40–50°	2.5	3.1	3.5	3.7
Close Reach60°	3.0	3.8	4.2	4.4
Beam Reach90°	3.7	4.7	5.2	5.4
Broad Reach120–135°	3.4	4.3	4.8	5.0
Run150–180°	2.7	3.4	3.8	4.0

These are simplified estimates based on hull speed (6.7 kts), SA/D (14.6), and empirical efficiency curves — not instrument-measured polars. Real-world speed varies with sea state, bottom condition, sail trim, and current. Speeds in gold approach hull speed; bold gold means near or at hull speed.

Wind Range & Comfort Envelope

Estimated wind ranges for comfortable sailing on the Seamaster Sailer 29 — based on sail area, ballast, and displacement characteristics.

Ghost

Sweet Spot

Reef

Heavy

0–7 kts 7–20 kts 20–28 kts 28+ kts

Ghosting

0–7 kts

Light air, motor-sailing likely. Need patience and a light genoa.

Sweet Spot

7–20 kts

Comfortable under full sail. Best speed-to-comfort ratio.

Time to Reef

20–28 kts

Time to shorten sail. Reef the main, swap to a working jib.

Heavy Weather

28+ kts

Storm conditions. Storm jib or bare poles. Seek shelter if coastal.

How It Compares

Side-by-side with the boats most often cross-shopped against the Seamaster Sailer 29.

	Seamaster Sailer 29	Banner 30	Cc 29	Halmatic 30	Lancer 30 2	Sailor 29 Colvic
Dimensions
LOA	29.5	29.5	29.6	29.5	29.5	29.5
LWL	25.0	23.3	23.6	22.8	22.5	24.0
Beam	10.3	9.2	10.3	9.5	9.8	10.5
Displacement	7	5	7	9	7	13
Ballast	3	2	2	4	3	4
Sail Area	333	375	422	430	360	425
Performance
PHRF	—	—	—	—	192	—
SA/Disp	14.6	19.0	17.7	16.0	15.8	12.2
Bal/Disp	—	48.0	36.0	50.0	42.9	30.3
Comfort	18.5	18.0	20.4	27.9	21.0	34.7
Capsize	2.15	2.07	2.11	1.83	2.06	1.78
Hull Speed	6.7	6.5	6.5	6.4	6.4	6.6