Design and Construction
The hull is made of fibreglass and carries a lead ballast. The documented wet-bottom surface of about 52 m² (559 ft²) and an immersion rate of roughly 257 kg/cm (1,439 lbs/inch) tell you how reluctantly she changes trim under stores or crew — a trait that pairs with a Motion Comfort Ratio of 33.0 to signal a steady, forgiving motion profile in a seaway rather than a lively one. She was offered with different keel alternatives: one is a stub/centreboard keel giving 1.68–1.78 m (5.51–5.81 ft) draft dependent on load, which lets her enter most marinas; the other is a long keel drawing 2.13–2.23 m (6.99–7.29 ft), restricting her to major marinas but adding the directional stability of a traditional fixed appendage.
Rig and Handling
The Bowman 46 Corsair is built with a masthead rig carrying 66.9 m² in mainsail and jib. With the ISO 8666 reference sail the SA/D is 14.0; with a 135% genua it rises to 16.8, a meaningful jump that reflects how much her moderate sail plan leans on overlapping headsails for drive in lighter air. The control-line estimates are uniformly hefty — halyards of 33.7 m (110.5 ft) at:14 mm, sheets of 14–35 m at 16 mm — confirming a rig sized for manual loads without powered winches as a necessity. The skeg-hung rudder and fin or long-keel configurations place her in the Holman & Pye cruiser lineage rather than the later Chuck Paine fin-keel Bowmans, and the stub/centreboard option is the more versatile of the two for mixed coastal and harbour use.
Accommodations
Below, the boat is equipped with one cabin and 5 berths, a layout that reads as a single generous owner's saloon-and-stateroom arrangement rather than a multi-cabin charter split. Fresh water capacity is 643 litres (169 US gallons, 141 imperial gallons), a volume that supports extended autonomous cruising for a small crew without frequent replenishment. The single-cabin count is unusual at this length and signals a builder priority on volume per berth over compartment count.
Known Issues
The source material for this model carries no documented structural defects, osmotic-blister reports, or systems failures. The only cautions are intrinsic to configuration: the long-keel draft limits marina access, and the immersion rate means she sits deep and loads slowly. No drainage, flooding-path, or quantified-defect items appear in the source material, so nothing beyond the keel-choice trade-off can be asserted as a known weakness.
Refits and Ownership
Because the sources describe no model-year production end and no numbered build run, ownership planning should treat each example as an individual spec combination — stub/centreboard versus long keel, original masthead rig dimensions, and the single-cabin interior. The rig's conservative line diameters and lengths make fresh running rigging a straightforward, non-specialist expense. The 23,500-lb displacement means refit weight-aloft savings are limited compared with cored-deck later Bowmans, but the hull's thickness is a durability asset rather than a liability.
The Verdict
The Bowman 46 Corsair is a Holman & Pye heavy-displacement cruiser of the early seventies, offered in stub/centreboard or long-keel form, with a masthead rig, a single-cabin five-berth interior, and a large fresh-water reserve. She rewards owners who value motion comfort and marina flexibility (via the centreboard) over speed or cabin count, and who accept deep load immersion as the price of her stability.
Pros
- Centreboard keel option gives 5.5–5.8 ft draft for broad marina access
- High Motion Comfort Ratio (33.0) and capsize screening (1.81) for offshore steadiness
- 643-litre fresh water capacity supports long self-sufficient passages
- Solid fibreglass hull
Cons
- Long-keel draft of 6.99–7.29 ft restricts to major marinas only
- Single cabin limits berth privacy versus multi-cabin contemporaries
- Immersion rate of 1,439 lbs/inch makes her slow to change trim under load
