Duckworth 721 2011 boat specs
Duckworth
Duckworth 721 2011
2011
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VS
Duckworth Navigator 215 SE 2007 boat specs
Duckworth
Duckworth Navigator 215 SE 2007
2007
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Duckworth 721 2011 vs Duckworth Navigator 215 SE 2007 — Same Brand, Different Boat

Matching a modified vee Duckworth 721 2011 against a deep vee Duckworth Navigator 215 SE 2007 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Duckworth 721 2011 and Duckworth Navigator 215 SE 2007 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeDuckworth
MakeDuckworth
Model721
ModelNavigator 215 SE
Model Year2011
Model Year2007
Measurements / Dimensions
Beam102 in
Beam102 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
DeadriseTransom: 10° constant
Deadrise28℃ bow variable to 18℃ at transom
Weight - Detail1,600 lbs
Weight - Detailnot available
Weight - kg725.75
Weight - kgnot available
Weight - lbs.16
Weight - lbs.not available
Width [transom] - Detail84 in. (with full length Delta Pad)
Width [transom] - Detail84 in
Height - DetailSides: 31 in
Height - Detail36 in
Height - Meters0.79
Height - Meters0.91
Height - Inches31
Height - Inches36
Length - Feet21
Length - Feet21
Length overall - Detail21 ft
Length overall - Detail21 ft. 6 in
Length overall - Meters6.4
Length overall - Meters6.55
Length overall - Inches252
Length overall - Inches258
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessBottom: 0.190 in. Sides: 0.125 in
Hull thickness0.125 in
Hull typeModified Vee
Hull typeDeep vee
Engine and Drivetrain
Fuel tank capacity - Detail42 gal
Fuel tank capacity - Detail62 gal
Fuel tank capacity - Liters158.99
Fuel tank capacity - Liters234.7
Fuel tank capacity - Gal42
Fuel tank capacity - Gal62
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine/s standardnot available
Engine/s standardYamaha

Duckworth 721 2011 vs Duckworth Navigator 215 SE 2007 — Common Questions

Which is the larger boat — the Duckworth 721 2011 or the Duckworth Navigator 215 SE 2007?
The Duckworth Navigator 215 SE 2007 is the longer of the two at 21,0 feet overall. The Duckworth 721 2011 comes in at 21,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
How many people can each boat hold?
The Duckworth 721 2011 is Coast Guard rated for 6 passengers, while the Duckworth Navigator 215 SE 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Duckworth 721 2011 and Duckworth Navigator 215 SE 2007 share an 102 in beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Which boat has the larger fuel tank — the Duckworth 721 2011 or the Duckworth Navigator 215 SE 2007?
The Duckworth Navigator 215 SE 2007 has the bigger tank at 62 gallons, versus 42 gallons on the Duckworth 721 2011. That 20-gallon difference translates to roughly 60–100 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Duckworth 721 2011 and Duckworth Navigator 215 SE 2007 from the same manufacturer?
Yes — both the Duckworth 721 2011 and the Duckworth Navigator 215 SE 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.