Pacemaker Mk II Information, Review, Specs

Sailing Performance & Handling

The sailing characteristics of the Pacemaker Mk II are defined by its relatively high displacement and high ballast-to-displacement ratio for a vessel of its size. While technical specifications from the era are often inconsistent, the boat is widely regarded by owners and regional reviewers as a stiff, predictable performer in heavy air. Its hull form, characterized by a fine entry and significant beam carried well aft, allows it to track well when reaching, though like many designs of its generation, it requires early reefing to maintain optimal heel angles once the wind exceeds 15 knots.

Handling is typically managed via a transom-hung rudder and a cast-iron swing keel. The Mk II’s keel mechanism was an improvement over the Mk I, designed to reduce clanking while under sail and providing a lower center of gravity when fully extended. This makes the boat feel more secure in a seaway compared to lighter competitors. While it is not a "light-air flyer" due to its wetted surface area and weight, it maintains momentum through chop that would stall lighter 21-footers. Anecdotal evidence from historical club racing results in Western Australia suggests the Mk II is particularly competitive on a handicap basis when conditions turn "foul," favoring its ability to power through head seas.

Interior Comfort & Variations

The Pacemaker Mk II significantly improved the "liveability" of the 21-foot hull compared to the original Mk I. The most notable feature of the Mk II is the fiberglass "pop-top" hatch, which, when elevated, provides near-standing headroom in the main cabin—a luxury rarely found in 21-foot sailboats. The interior layout is a classic four-berth configuration: a V-berth forward and two quarter-berths extending aft under the cockpit seats.

The cabin utilizes a molded fiberglass liner, which adds structural rigidity and simplifies maintenance. Most Mk II models were equipped with a compact galley area featuring a manual pump sink and space for a portable two-burner stove. The use of teak trim and vinyl upholstery was standard, creating a warm, if cozy, atmosphere. Owners often mention the "Mk II" designation specifically when discussing the improved cabinet work and storage lockers that were added to maximize the utility of the small interior volume. The sibling model, the Pacemaker 19, utilized a similar aesthetic but lacked the volume for a pop-top, making the 21 Mk II the preferred choice for multi-day coastal hops.

Known Issues & Buyer’s Checklist

Prospective buyers of a Pacemaker Mk II should focus their inspection on the specific mechanical and structural points common to 40-year-old fiberglass trailer sailers:

1. Swing Keel Bolt and Pivot: The pivot bolt for the cast-iron keel is a primary wear point. If the bolt hole has "egged" out over time, the keel may thud or vibrate while sailing. Inspecting the keel trunk for stress fractures and ensuring the lifting winch and cable are in good repair is critical.
2. Deck Core Integrity: While the hulls are generally overbuilt, the decks often utilized a balsa or plywood core. Any unsealed deck hardware (pulpits, cleats, winches) may have allowed moisture to penetrate, leading to soft spots. This is especially common around the mast step.
3. Pop-Top Seal and Springs: The Mk II’s signature pop-top relies on a weather seal and often a gas-strut or spring-assisted lift mechanism. These seals frequently perish, leading to water ingress in the cabin during heavy rain or when taking spray over the bow.
4. Rudder Pintles and Gudgeons: Given the age of these vessels, the transom-hung rudder hardware should be checked for play. Excessive movement can lead to a heavy helm and potential failure of the fiberglass transom mounting points.

Community & Resources

While there is no longer a formal manufacturer presence, the Pacemaker Mk II is supported by a dedicated following within broader Australian trailer sailer associations. Technical data and historical discussions are frequently archived by the Trailer Sailer Association of Australia (TSAA) and the Western Australian Trailer Sailer Association (WATSA). These groups serve as the primary repository for rigging diagrams and restoration advice for the Randell-designed fleet.

The Verdict

The Pacemaker Mk II is a "small boat with a big heart," offering a level of seaworthiness and interior volume that belies its 21-foot length. It is an ideal choice for the sailor who prioritizes safety and overnight comfort over raw racing speed or ease of single-handed trailering.

Pros:

• Exceptional headroom for its size thanks to the pop-top design.
• Robust construction capable of handling coastal chop better than lighter modern counterparts.
• Strong secondary market and community support in Australia.
• Predictable, stiff handling that inspires confidence in novice sailors.

Cons:

• Heavy displacement makes it demanding to tow and launch without a powerful vehicle.
• Performance in light winds can be sluggish compared to modern sport-boats.
• Aging hardware and potential core issues require a diligent pre-purchase inspection.