Xpress HDB Series - H51DB 2008 boat specs
Xpress
Xpress HDB Series - H51DB 2008
2008
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VS
Xpress Tunnel Jon 2009 boat specs
Xpress
Xpress Tunnel Jon 2009
2009
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Xpress HDB Series - H51DB 2008 vs Xpress Tunnel Jon 2009 — Same Brand, Different Boat

Matching a modified vee Xpress HDB Series - H51DB 2008 against a tunnel Xpress Tunnel Jon 2009 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.

On paper these two are close siblings in the size department — Xpress HDB Series - H51DB 2008 at 17,0 ft versus Xpress Tunnel Jon 2009 at 16,0 ft. Weight tells a clearer story for trailering families: the Xpress HDB Series - H51DB 2008 tips the scales at 905 lbs — 478 lbs more than the Xpress Tunnel Jon 2009 at 427 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The power gap is worth calling out. Rated to 90 hp, the Xpress HDB Series - H51DB 2008 has a 60-hp advantage over the Xpress Tunnel Jon 2009's 30-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Xpress HDB Series - H51DB 2008 is rated for 4 passengers, while the Xpress Tunnel Jon 2009 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Xpress HDB Series - H51DB 2008 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Xpress HDB Series - H51DB 2008 comes in at 10 lbs per hp versus 14 lbs per hp for the Xpress Tunnel Jon 2009. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: Choose the Xpress HDB Series - H51DB 2008 if your priority is putting more people on the water — it handles 4 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Xpress Tunnel Jon 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.
General Boat Info
MakeXpress
MakeXpress
ModelHDB Series - H51DB
ModelTunnel Jon
Model Year2008
Model Year2009
Measurements / Dimensions
Beam85 in
Beam75 in
Beam - Meters2.16
Beam - Meters1.91
Beam - Inches85
Beam - Inches75
Weight - Detail905 lbs
Weight - Detail427 lbs
Weight - kg410.5
Weight - kg193.68
Weight - lbs.905
Weight - lbs.427
Height - Detail22 in
Height - Detail23 in
Height - Meters0.56
Height - Meters0.58
Height - Inches22
Height - Inches23
Height [transom]21 in
Height [transom]27 in
Length - Feet17
Length - Feet16
Length overall - Detail17 ft. 0 in
Length overall - Detail16 ft. 0 in
Length overall - Meters5.18
Length overall - Meters4.88
Length overall - Inches204
Length overall - Inches192
Width [transom] - Detailnot available
Width [transom] - Detail50 in
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.100 in
Hull thickness0.100 in
Hull typeModified Vee
Hull typeTunnel
Engine and Drivetrain
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max90 hp
Engine max30 - 50 hp
Operational Info
Maximum capacity1,200 lbs
Maximum capacity950 lbs
Maximum people4/600 lbs
Maximum people3 / 450 lbs
Trailer Info
Trailer - Length over allPK Length: 20 ft. 9 in. (includes trailer and engine)
Trailer - Length over allnot available

Xpress HDB Series - H51DB 2008 vs Xpress Tunnel Jon 2009 — Common Questions

Which is the larger boat — the Xpress HDB Series - H51DB 2008 or the Xpress Tunnel Jon 2009?
The Xpress HDB Series - H51DB 2008 is the longer of the two at 17,0 feet overall. The Xpress Tunnel Jon 2009 comes in at 16,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Xpress HDB Series - H51DB 2008 or the Xpress Tunnel Jon 2009?
For trailering, the Xpress Tunnel Jon 2009 has the edge at 427 lbs dry weight versus 905 lbs for the Xpress HDB Series - H51DB 2008. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Xpress HDB Series - H51DB 2008 is rated to a maximum of 90 hp, giving it the larger power ceiling. The Xpress Tunnel Jon 2009 tops out at 30 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Xpress HDB Series - H51DB 2008 is Coast Guard rated for 4 passengers, while the Xpress Tunnel Jon 2009 is certified for 3. 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 has the better power-to-weight ratio?
The Xpress HDB Series - H51DB 2008 has a better power-to-weight ratio at 10 lbs per hp compared to 14 lbs per hp for the Xpress Tunnel Jon 2009. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Xpress HDB Series - H51DB 2008 measures 85" wide, compared to 75" for the Xpress Tunnel Jon 2009. 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.
Are the Xpress HDB Series - H51DB 2008 and Xpress Tunnel Jon 2009 from the same manufacturer?
Yes — both the Xpress HDB Series - H51DB 2008 and the Xpress Tunnel Jon 2009 are built by Xpress. 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.