Design and Construction
The hull is single-skin fiberglass polyester with wood trim, while the deck uses a balsa fiberglass polyester sandwich—a construction that keeps weight down while adding stiffness overhead. The hull carries a raked stem and a walk-through reverse transom with a gate, details that speak to the boat’s ramp-launching intent rather than pure coastal cruising. Van de Stadt’s hand shows in a hull that measures 24.77 feet overall on a 21.83-foot waterline, with an 8.27-foot beam and a displacement of 3,245 pounds. Period assessments describe the Dehler as very well made and nicely finished, and cleverly laid out for easy launching and retrieval at a ramp.
Rig and Handling
The boat is rigged as a 7/8 fractional sloop with aluminum spars, wire standing rigging, and a deck-stepped mast carried on a single set of swept spreaders. Sail area totals 336 square feet upwind and 530 downwind, the latter figure including a 360-square-foot spinnaker option. A lifting keel with stub or a fixed fin was offered; the lifting version draws 4.50 feet extended and just 1.30 feet retracted, while the fixed keel draws 4.33 feet. The swing-keel model carries 827 pounds of fixed lead ballast plus 827 pounds of flooding water ballast that is drained for road transport, and testers noted this water ballasted arrangement with equal lead gives a 51% ballast ratio that makes her suitably stiff, unlike some other water-ballasted designs. A tiller commands the internally mounted spade rudder, which is easily removable. The heavy lifting keel is raised with a standard winch handle in a deck socket forward of the mast operating a worm gear, and well-designed mast-lowering gear plus a supplied road trailer with a four-wheel floating slipway trolley complete the trailerable package.
Accommodations
Below, the Dehler 25 sleeps four: a double V-berth in the bow cabin, with the head tucked underneath, and two straight settee quarter berths in the main cabin. The galley sits to starboard just aft of the bow cabin with a two-burner stove and sink, and the navigation station faces it across the cabin. Headroom is 57 inches, and testers measured it at 4 feet 9 inches, a dimension that makes stays beyond a few days a test of will. A canvas dodger may ease the sense of confinement. Tankage is modest—10 gallons of fuel and 19 of fresh water—consistent with ramp-launched weekend use rather than extended cruising.
Known Issues
The principal limitation is accommodation height; the 4-foot-9-inch headroom is the one repeatedly cited drawback, tolerable for short hops but cramping on longer stays.
Refits and Ownership
The boat was offered factory-finished or as the Dehlya 25 kit for amateur completion in various build stages using factory subassemblies. Owners running the lifting-keel version should keep the worm-gear keel mechanism serviced, and the sliding outboard mount on the reverse transom—riding on tracks for easy raise and lower—is a practical feature worth preserving. The automatic water ballast system and removable rudder simplify trailering, and a dodger is the most useful comfort refit.
The Verdict
The Dehler 25 is a clever, well-built small cruiser that punches above its length through smart ballast engineering and genuine trailerability. It rewards the sailor who wants a van de Stadt-designed hull on a modest budget and a driveway, while demanding compromise on living space.
Pros
- High 51% ballast ratio from combined lead and water ballast keeps her stiff
- True trailerability with draining water ballast, removable rudder, and mast-lowering gear
- Walk-through reverse transom and sliding outboard mount aid ramp launching
- Fractional sloop rig and sensible 336 sq ft upwind sail plan
Cons
- 4-foot-9-inch headroom limits livability beyond a few days aboard
- 10-gallon fuel and 19-gallon water capacity constrain range
