The search results provide a good amount of information. I can now proceed to write the article following the structure.
Key findings from search results:
- Designer: Judel/Vrolijk & Co. is explicitly mentioned as the designer for the Hanse 345, consistently aiming for the "fastest cruising yacht in her class" and incorporating cutting-edge design and calculation models for sail plans.
- Production Years: 2012-2017 (confirmed by).
- Variations: A shallow keel option is available, with a draft of 1.55m (5.08 ft) and ballast of 2,200 kg (4,840 lbs), contrasting with the standard 6.14 ft deep keel. There's also mention of 2 or 3 cabin versions.
- Design Philosophy: Hanse emphasizes shorthanded sailing, easy handling, self-tacking jib, lines led aft, twin wheels for wider cockpit space, and modern interiors.
- Sailing Performance & Handling:
- Praised for being easy to handle, even single-handedly.
- Good performance in light winds, surprising some owners.
- Handles turbulent wind flow well.
- Tracks well in heavy weather with a light helm.
- Self-tacking jib simplifies tacking.
- Some early reviews mentioned being underpowered in light winds, but later owner feedback contradicts this, praising light wind performance.
- Accommodations & Layout:
- Modern design with a classic and functional layout.
- Often available in 2-cabin or 3-cabin versions.
- Common layout: owner's cabin forward, saloon with large folding dining table, L-shaped galley, private head and shower, and two double aft cabins (for 3-cabin version).
- Twin wheels enable a wider, more comfortable cockpit.
- Interiors offer comfort, storage, and astonishing design, aiming for a home-like experience.
- Standard interior trim is mahogany.
- Customization options for hull colors, interior layouts, woods, and fabrics.
- Finish quality, while not matching "premium brands," is competitive for its price point.
- Folding transom is a feature.
- Owner's Perspectives:
- Owners praise solid construction and easy handling.
- Common issues mentioned: Septic tank size (35 liters) can be small for some. Problems tend to relate to electronics, engines (Volvo loose bolts, leaks, MDI units), or quality of work done, rather than the core boat structure itself.
Now, I will calculate the ratios.
- Displacement: 13669 lbs
- LOA: 34.12 ft
- LWL: 31.33 ft
- Ballast: 4475 lbs
- Sail Area: 577.12 sqft (using
sail_area_total_calc_sqft
)
- Sail Area to Displacement (SA/D):
Disp_cuft = 13669 lbs / 64 lbs/cuft = 213.578 cuft
Disp_cuft^(2/3) = 213.578^(2/3) = 35.59
SA/D = 577.12 sqft / 35.59 = 16.21
- Interpretation: A SA/D ratio of 16.21 is moderate. It suggests a decent all-around performer, not an extreme light-wind boat but also not sluggish. It should move well in moderate to strong breezes.
- Ballast to Displacement (B/D):
B/D = 4475 lbs / 13669 lbs = 0.327
or 32.7%- Interpretation: A B/D ratio of 32.7% is moderate. It indicates reasonable stability and stiffness, capable of standing up to a good amount of wind, though perhaps not as stiff as a dedicated offshore racer with a higher ballast ratio. The bulb keel likely helps compensate for a lower percentage by placing weight lower.
- Displacement to Length (D/L):
Disp in long tons = 13669 lbs / 2240 lbs/long ton = 6.09 long tons
LWL/100 = 31.33 / 100 = 0.3133
(LWL/100)^3 = 0.3133^3 = 0.0307
D/L = 6.09 long tons / 0.0307 = 198.37
- Interpretation: A D/L ratio of 198.37 falls into the "moderate cruiser" category. It suggests a boat that offers a good balance of speed and comfortable motion, rather than being an ultralight racer or a heavy, traditional displacement cruiser.
The boat is 34.12 ft, so using ratios is appropriate.
I have all the necessary information now. I will proceed with generating the article.