Saltrum 40 Information, Review, Specs

Make
Saltrum
Model
40
Builder
K.R.Skentelbery & Sons Ltd.
Designer
Alan Pape
Number Built
35
Production Year(s)
1977 - 1997

The Saltrum 40 represents the largest and most formidable evolution of the heavy-displacement, double-ended cruising philosophy developed by the late British designer Alan Pape. Built by Saltrum Marine in Calstock, Cornwall, the Saltrum 40 is a "big sister" to the more numerous Saltrum 32 and 36 models. These vessels were heavily influenced by the traditional lines of the Falmouth Quay Punt, scaled up and refined for modern GRP (Glass Reinforced Plastic) construction. Known within the high-latitude cruising community for their "armour-plated" build quality, the Saltrum 40 was designed specifically for long-distance, self-sufficient passage-making in conditions that would discourage lighter, production-line cruisers.

Sailing Performance & Handling

The Saltrum 40 is a quintessential heavy-displacement cruiser, prioritizing sea-kindliness and directional stability over raw speed or light-wind agility. Featuring a long keel and a deep, protected rudder, the hull is designed to track effortlessly, a trait that reduces strain on both the helmsman and wind-vane steering systems during long ocean legs. While specific technical ratios can vary based on individual owner fit-outs, the boat typically exhibits a high Displacement to Length (D/L) ratio, which translates to a motion that is predictable and "soft" even in a confused seaway.

Under sail, the 40 is almost exclusively rigged as a cutter. This configuration allows for a versatile sail plan, enabling the crew to maintain balance by reefing the mainsail and switching to a staysail as the wind increases. According to historical design notes from Alan Pape, the hull was intended to carry its weight low, providing a high righting moment. In light airs, the Saltrum 40 can be sluggish, requiring a significant breeze—typically 12 knots or more—to truly wake up. However, as noted in various owner accounts summarized by the Cruising Association, once the hull reaches its stride, its momentum allows it to punch through head seas that would stop lighter boats.

Interior Comfort & Variations

The interior of the Saltrum 40 is characterized by its substantial volume, a benefit of the boat’s generous beam and deep hull sections. Unlike modern "med-style" cruisers with wide, open cockpits and shallow bilges, the Saltrum 40 offers a sense of enclosure and security. The standard layout typically features a large V-berth forward, a spacious salon with settee berths that serve as excellent sea berths, and a dedicated, forward-facing navigation station.

Materials are almost universally traditional, featuring heavy use of solid teak or mahogany joinery. Because many Saltrums were finished to a high degree of owner specification, variations are common. Some hulls were delivered as "sail-away" packages, leading to a wide range in interior craftsmanship. The Saltrum 40’s siblings—the Saltrum 32 and the 36—share this aesthetic, though the 40-foot version provides significantly more "headroom" and storage capacity, making it the preferred choice for couples planning multi-year live-aboard voyages. The deep bilges also provide ample space for large fuel and water tanks, essential for remote cruising.

While the Saltrum 40 itself is a rare sight due to limited production numbers, the Alan Pape "Saltrum" lineage carries significant weight in British maritime history. The Saltrum 32, a direct design relative, gained fame through the voyages of high-profile sailors like Webb Chiles, who praised the design’s toughness. The Saltrum 40 is frequently mentioned in blue-water literature as a "cult classic" for those seeking a vessel capable of navigating the Northwest Passage or the Southern Ocean.

Known Issues & Buyer’s Checklist

Prospective buyers of a Saltrum 40 should approach the survey with a focus on the boat's age and the specifics of its heavy-duty construction.

  1. Osmosis and Hull Blistering: Early GRP hulls from the 1970s and 80s are susceptible to osmosis. Given the thickness of a Saltrum hull, this is rarely a structural failure point, but it can be an expensive cosmetic and preventative maintenance issue.
  2. Deck Core Integrity: While the hulls are solid GRP, the decks often utilized balsa or foam cores for insulation and weight saving. Check for "spongy" areas around high-load fittings like the windlass, chainplates, and stanchion bases, which may indicate water ingress.
  3. Engine Access and Age: Many Saltrum 40s were originally fitted with Bukh or older Perkins diesel engines. While reliable, these may be reaching the end of their service life. Buyers should check the accessibility of the engine bay, as the deep-cockpit design can make certain maintenance tasks difficult.
  4. Cutter Rig Tension: The tension on the forestay and inner forestay (staysail stay) should be inspected. Over decades, the heavy loads of a cutter rig can cause minor deck "lifting" if the internal stay-sail tangs and reinforcements were not properly maintained or were undersized during a DIY fit-out.
  5. Chainplate Leakage: Like many traditional cruisers, the chainplates pass through the deck. A history of neglected re-bedding can lead to moisture damage in the bulkheads below.

Community & Resources

The primary hub for owners of Alan Pape designs is the Alan Pape Owners Group, often hosted through various nautical forums. While no standalone corporate website exists for the defunct Saltrum Marine, technical support is frequently found through the Cornish Maritime Trust or by contacting established Cornwall-based surveyors who retain historical knowledge of the Calstock yard’s output.

The Verdict

The Saltrum 40 is a specialized tool for the serious mariner, offering a level of security and durability that few modern production yachts can match.

Pros:

  • Exceptional Seaworthiness: Built for heavy weather and long-distance ocean crossings.
  • Aesthetic Appeal: Classic double-ended lines that draw admiration in any harbor.
  • Load Carrying: Deep hull allows for extensive storage and heavy tankage without compromising stability.

Cons:

  • Light Wind Performance: Requires a stiff breeze to overcome its high wetted surface area.
  • Maneuverability: The long keel makes backing into tight marina slips under power a challenge for the uninitiated.
  • Maintenance: Higher-than-average amounts of exterior brightwork and traditional systems may require more "hands-on" upkeep.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Full
Rudder
1x Transom-Hung
Ballast
11220 lbs
Displacement
30464 lbs
Water Capacity
150 gal
Fuel Capacity
100 gal

Dimensions

Length Overall (LOA)
40 ft
Waterline Length (LWL)
32 ft
Beam
12.08 ft
Draft
6.5 ft
Max Headroom
6.17 ft
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Cutter
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
695 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
11.4
Ballast / Displacement Ratio
36.83
Displacement / Length Ratio (D/L) Ratio
415.04
Comfort Ratio
49.56
Capsize Screening Formula
1.55
Hull Speed
7.58 kn