Island Packet 29 vs Shipman 28
How do the Island Packet 29 and Shipman 28 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Island Packet 29 
Shipman 28 | Island Packet 29 | Shipman 28 | |
|---|---|---|
| Length overall | 29.0 ft8.84 m | 29.1 ft8.86 m |
| Waterline length | 25.6 ft7.80 m | 21.0 ft6.40 m |
| Beam | 10.8 ft3.30 m | 8.5 ft2.60 m |
| Draft | 4.3 ft1.30 m | 5.1 ft1.55 m |
| Displacement | 10,900 lb4,944 kg | 6,173 lb2,800 kg |
| Ballast | 4,800 lb2,177 kg | 2,667 lb1,210 kg |
| Sail area | 491 ft²45.6 m² | 307 ft²28.5 m² |
| SA / Displacement | 15.98 | 14.60 |
| Displacement / Length | 291 | 298 |
| Comfort ratio | 26.5 | 23.4 |
| Capsize screening | 1.95 | 1.86 |
| Hull speed (kn) | 6.8 | 6.1 |
| Average used price | — | €5,100 |
Island Packet 29 vs Shipman 28: the short version
- The Island Packet 29 and Shipman 28 are close in length (29.0 ft8.84 m vs 29.1 ft8.86 m ).
- The Island Packet 29 is heavier, displacing about 77% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Island Packet 29 carries the more powerful rig (16.0 vs 14.6), favouring lighter-air performance.
- The Island Packet 29 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Shipman 28 rates better for offshore work (1.86 vs 1.95).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.