Duckworth 235 2010 boat specs
Duckworth
Duckworth 235 2010
2010
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VS
Duckworth Silverwing Inboard 21 ft. 2007 boat specs
Duckworth
Duckworth Silverwing Inboard 21 ft. 2007
2007
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Duckworth 235 2010 vs Duckworth Silverwing Inboard 21 ft. 2007 — A Close Look at Two Deep Vees

When two boats share the same hull type — in this case both the Duckworth 235 2010 and the Duckworth Silverwing Inboard 21 ft. 2007 are deep vee designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

The Duckworth 235 2010 carries a rated maximum of 450 hp. Engine data for the Duckworth Silverwing Inboard 21 ft. 2007 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads — 62 gal and 62 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Duckworth 235 2010 is rated for 7 passengers, while the Duckworth Silverwing Inboard 21 ft. 2007 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Duckworth 235 2010 could be the deciding factor.

Bottom line: Choose the Duckworth 235 2010 if your priority is putting more people on the water — it handles 7 passengers and at 23,5 ft it has the deck room to back that rating up comfortably. The Duckworth Silverwing Inboard 21 ft. 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeDuckworth
MakeDuckworth
Model235
ModelSilverwing Inboard 21 ft
Model Year201
Model Year2007
Measurements / Dimensions
Beam102 in
Beam93.5 in
Beam - Meters2.59
Beam - Meters2.39
Beam - Inches102
Beam - Inches93.5
DeadriseBow Entry: 28° Transom: 18°
Deadrise14℃ at transom
Weight - Detail2,490 lbs
Weight - Detailnot available
Weight - kg1129.44
Weight - kgnot available
Weight - lbs.249
Weight - lbs.not available
Width [transom] - Detail84 x 0.190 in
Width [transom] - Detail72 in
Height - DetailSides: 36 x 0.125 in
Height - Detail32 in
Height - Meters0
Height - Meters0.81
Height - Inches0.125
Height - Inches32
Length - Feet23.5
Length - Feet21
Length overall - Detail23 ft. 6 in
Length overall - Detail21 ft. 0 in
Length overall - Meters7.16
Length overall - Meters6.4
Length overall - Inches282
Length overall - Inches252
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typeDeep Vee
Hull typeDeep vee
Hull thicknessnot available
Hull thickness0.125 in
Engine and Drivetrain
Engine/s standard25 in. shaft motor
Engine/s standardGM 350 V-8
Fuel tank capacity - Detail62 gal
Fuel tank capacity - Detail62 gal
Fuel tank capacity - Liters234.7
Fuel tank capacity - Liters234.7
Fuel tank capacity - Gal62
Fuel tank capacity - Gal62
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeInboard
Horsepower450 hp
Horsepowernot available

Duckworth 235 2010 vs Duckworth Silverwing Inboard 21 ft. 2007 — Common Questions

Which is the larger boat — the Duckworth 235 2010 or the Duckworth Silverwing Inboard 21 ft. 2007?
The Duckworth 235 2010 is the longer of the two at 23,5 feet overall. The Duckworth Silverwing Inboard 21 ft. 2007 comes in at 21,0 feet, making it roughly 2,5 ft shorter — a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The Duckworth 235 2010 has a documented max rating of 450 hp. Engine specifications for the Duckworth Silverwing Inboard 21 ft. 2007 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Duckworth 235 2010 is Coast Guard rated for 7 passengers, while the Duckworth Silverwing Inboard 21 ft. 2007 is certified for 6. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Duckworth 235 2010 measures 102" wide, compared to 94" for the Duckworth Silverwing Inboard 21 ft. 2007. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
How do the fuel tanks compare on the Duckworth 235 2010 and Duckworth Silverwing Inboard 21 ft. 2007?
Both boats carry similar fuel loads — 62 gallons and 62 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Duckworth 235 2010 and Duckworth Silverwing Inboard 21 ft. 2007 from the same manufacturer?
Yes — both the Duckworth 235 2010 and the Duckworth Silverwing Inboard 21 ft. 2007 are built by Duckworth. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.