Whittley Boats

SL 27 HT OB

The first of the next generation of SL performance deep-V hulls. Purpose-built for serious fishing families, it combines offshore capability with the comfort and luxury of a dedicated stand-up shower, onboard stove and lockable forward cabin.

The all-new V180W windscreen delivers exceptional visibility, strength and a bold sporting profile, complemented by a redesigned sports hard top with an electric rear sun awning for effortless protection from the elements.

Packed with innovative features, intelligent design and premium appointments, the SL 27 HT raises the bar for performance, versatility and family boating.

Driveaway from $379,990.00^

DOWNLOAD SPECS

OFF-SHORE COMFORT

The SL 27 HT is the flagship of the four-model SL range, bringing together more than 55 years of boat-design expertise from leading Australian designer Steven Whittley. The result is a next-generation offshore performer engineered to exceed expectations.

Purpose-designed for serious offshore conditions, the SL 27 HT combines a performance deep-V hull, foam-filled construction and the timber-free WBGRID stringer system for strength, stability and a confident ride. Its distinctive Australian-designed hybrid layout seamlessly blends offshore capability with a family-focused interior, delivering the space, comfort and versatility to make every adventure count. This is offshore performance without compromise — a boat built for serious fishing, extended adventures and unforgettable days on the water.

New SL 27 HT innovative features

New V180W windscreen design delivers a sporty profile, improved visibility, enhanced strength and a watertight seal, complemented by sliding side windows.
Ergonomically designed sports dashboard accommodates marine multifunction displays up to 19” and a standard advanced switching system.
18% increase in usable workspace and fishing cockpit area compared with the previous model, featuring a fold-away rear convenience seat, twin 200-litre removable underfloor fish kill tanks, additional twin 80-litre in-stringer kill tanks and a moulded, self-draining track rear deck.
Moulded live bait tank, freshwater rear sink and push-button over-side hand washer, complemented by a flat-back rear transom for increased fishing workspace.
Sliding electric WB180A rear awning provides protection from the harsh Australian sun at the touch of a button.
Standard starboard-side door for convenient access in and out of the boat.
Three versatile midship seating configurations, including optional stainless steel U-bar seats, back-to-back seats with fibreglass moulded bases, or a combination of both.
Foam-filled hull for a softer, quieter ride, combined with WBGRID timber-free stringer construction for strength and longevity.
Optional advanced lithium battery system incorporating integrated battery management technology and display.
Deep-V hull with 23-degree deadrise and increased reverse chine angle for confident offshore performance.
Dedicated standing freshwater shower area, with a lockable cabin and toilet door.
Newly designed Fish Master bait board, purpose-built to meet the demands of serious anglers.
Increased forward cabin space, with 15% more front cabin head height than the previous model, featuring a 24-volt electric stove, dedicated sink, larger cooking area and full-size sleeping accommodation.
Newly designed sports hard top featuring twin folding hatches for increased airflow, an extended rear profile for added weather protection and an innovative new pack rack system.
Automated boat levelling system with standard Humphree trim tabs for improved stability and ride control.

WHITTLEY SL 27 HT IN DEALERSHIP WALK-THROUGH VIDEO

Whittley Marine Group, Dealership General Manager, Brock Cohen takes you thru at Whittley WA the new release Whittley SL 27 HT powered by a V 10 400 Mercury engine. The new SL 27 HT OB is the most advanced maxi trailer fishing boat ever designed and built in Australia. Legally trailerable and designed to tow with a suitable tow vehicle nearly anywhere, anytime. Come and experience the new SL 27 HT OB in dealership to see what 70 years of Whittley craftsmanship and design looks like!

MARK ROTHFIELD TAKES THE SL 27 FOR A TEST.

Mark Rothfield Puts the Whittley SL 27 to the Test | On-Water Sea Trial and Performance Review

UNLIMITED ADVENTURE POTENTIAL

Because every boating journey is different, The SL 27 HT is versatile and ready for your next boating adventure! Be it fishing or an extended weekend offshore cruising to your favourite location off the Australian coastline. Built for the most serious of anglers, the SL 27 HT internal lay out can be configured around your needs, with three unique interior seat configurations available. The SL 27 HT also has more interior useable workspace in the rear fishing area along with front cabin, exactly where you need it. Don’t limit your fishing adventures to day light hours and start exploring Australia’s waterways today, in the style, comfort and safety that Whittley’s SL series is known for.

“The new Whittley SL 27 HT offers next generation SL series styling combined with many innovative new features, which are designed for the unique needs of Australian fishing families. It is the largest production SL model the company has ever produced and builds on the SL series ‘Australia’s Greatest Boats’ award winning 23 degree deep vee hull.”
Alan Whittley, Director of Sales and Marketing, Whittley Marine Group.

STANDARD FEATURES

DEDICATED GALLEY, SHOWER AND TOILET
SAVWINCH ELECTRIC ANCHOR WINCH
INCREASED SPACE IN REAR FISHING COCKPIT
MOULDED LIVE BAIT TANK
NEWLY DESIGNED SPORTS HARD TOP
NEW V180W WINDSCREEN DESIGN
SLIDE OUT ELECTRIC REAR FACING SUNSHADE
TIMBER FREE FOAM FILLED HULL

SL 27 HT OB Technical Specifications

Max People	8
Overall Length	7.70m
Length on Trailer	8.45m*
Height on Trailer Hard Top	3.30m*[rocket launcher]
Width on Trailer	2.49m
Beam	2.49m
Deadrise [at transom]	23°
Fuel Capacity	240L
Water Capacity	40L
Dry Towing Weight (base boat package)	2,800kg**[approximately]
Standard Engine	225 hp
Maximum Horsepower	350 hp
Twin Maximum Horsepower	Twin 150 hp
Maximum Weight On Transom	272kg Twin 432gk
Standard Mackay Trailer Model	AL-65T-14HD-HB
Trailer Weight Rating	3,500kg