The Mfg 19 is modestly canvassed and unhurried.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
5.6 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 17.3′, the Mfg 19 tops out around 5.6 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √17.3′ LWL = 5.6 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
PHRF Rating
282s/nm
Heavy or slow cruiser — all about the journey, not the elapsed time.
SA / Displacement
9.9
Modestly canvassed — a comfortable, unhurried cruiser.
Ballast / Displacement
25.0%
Light ballast — tends to be tender; reef earlier than the numbers suggest.
Displacement / Length
139
Ultralight — responsive and fast, but carries less stores.
Hull Speed
5.6kts
Pounds/Inch Immersion
3lbs
Weight needed to sink the hull one inch — loading sensitivity.
PHRF Fleet Position
Where the Mfg 19 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Flying Scot
Oday 19
Rhodes 19
Mfg 19
Heavy or slow cruiser — all about the journey, not the elapsed time.
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° | 1.8 | 2.2 | 2.5 | 2.6 |
| Close Reach60° | 2.2 | 2.7 | 3.0 | 3.2 |
| Beam Reach90° | 2.6 | 3.3 | 3.7 | 4.0 |
| Broad Reach120–135° | 2.4 | 3.1 | 3.4 | 3.7 |
| Run150–180° | 2.0 | 2.5 | 2.8 | 2.9 |
These are simplified estimates based on hull speed (5.6 kts),
SA/D (9.9), 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 Mfg 19 — based on sail area, ballast, and displacement characteristics.
Ghosting
0–8 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
8–20 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 Mfg 19.
| Mfg 19 | Com Pac 19 | Flying Scot | Mariner 19 Fk | Oday 19 | Rhodes 19 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 19.2 | 19.0 | 19.0 | 19.2 | 19.0 | 19.2 |
| LWL | 17.3 | 16.3 | 18.5 | 17.8 | 16.7 | 17.8 |
| Beam | 7.0 | 7.0 | 6.8 | 7.0 | 7.8 | 7.0 |
| Displacement | 1 | 2 | 850 | 1 | 2 | 1 |
| Ballast | 400 | 800 | — | — | 300 | 415 |
| Sail Area | — | 145 | 191 | 184 | 179 | 175 |
| Performance | ||||||
| PHRF | 282 | — | 204 | — | 220 | 261 |
| SA/Disp | 9.9 | 14.7 | 34.1 | 23.2 | 17.9 | 22.9 |
| Bal/Disp | 25.0 | 40.0 | — | — | — | — |
| Comfort | — | 13.5 | 5.5 | 9.1 | 11.9 | 8.6 |
| Capsize | — | 2.22 | 2.85 | 2.49 | 2.45 | 2.53 |
| Hull Speed | — | 5.4 | 5.8 | 5.7 | 5.5 | 5.7 |