Harris Flotebote Crowne 230 I/O 2006 boat specs
Harris Flotebote
Harris Flotebote Crowne 230 I/O 2006
2006
View full specs →
VS
Harris Flotebote Grand Mariner 250 SE 2009 boat specs
Harris Flotebote
Harris Flotebote Grand Mariner 250 SE 2009
2009
View full specs →

Harris Flotebote Crowne 230 I/O 2006 vs Harris Flotebote Grand Mariner 250 SE 2009 — Same Brand, Different Boat

The Harris Flotebote Crowne 230 I/O 2006 vs Harris Flotebote Grand Mariner 250 SE 2009 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

Size is the most obvious dividing line here. The Harris Flotebote Grand Mariner 250 SE 2009 measures 27,0 feet overall (2009), giving it roughly 4,0 additional feet of deck space compared to the Harris Flotebote Crowne 230 I/O 2006 at 23,0 feet (2006). Weight tells a clearer story for trailering families: the Harris Flotebote Grand Mariner 250 SE 2009 tips the scales at 4 459 lbs — 4 117 lbs less than the Harris Flotebote Crowne 230 I/O 2006 at 342 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 260 hp, the Harris Flotebote Grand Mariner 250 SE 2009 has a 35-hp advantage over the Harris Flotebote Crowne 230 I/O 2006's 225-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 Harris Flotebote Grand Mariner 250 SE 2009 is rated for 16 passengers, while the Harris Flotebote Crowne 230 I/O 2006 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Harris Flotebote Grand Mariner 250 SE 2009 could be the deciding factor.

Bottom line: Choose the Harris Flotebote Grand Mariner 250 SE 2009 if your priority is putting more people on the water — it handles 16 passengers and at 27,0 ft it has the deck room to back that rating up comfortably. The Harris Flotebote Crowne 230 I/O 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
MakeHarris Flotebote
MakeHarris Flotebote
ModelCrowne 230 I/O
ModelGrand Mariner 250 SE
Model Year2006
Model Year2009
Measurements / Dimensions
Beam8 ft. 6 in
Beam8 ft. 6 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Bridge clearance - Detail68 in. (Bimini/stern light down) 112 in. (Walk-on top w/ stern light down)
Bridge clearance - Detail62 in. bimini / stern light down
Bridge clearance - Meters2.84
Bridge clearance - Meters1.57
Bridge clearance - Inches112
Bridge clearance - Inches62
Draft [drive up] - Detail14 in
Draft [drive up] - Detail13 in
Draft [drive up] meters0.36
Draft [drive up] meters0.33
Draft [drive up] inches14
Draft [drive up] inches13
Draft [max] - Detail23 in
Draft [max] - Detail30 in
Draft [max] - Meters0.58
Draft [max] - Meters0.76
Draft [max] - Inches23
Draft [max] - Inches3
Weight - Detail3,420 lbs
Weight - Detail4,459 lbs
Weight - kg1551.28
Weight - kg2022.57
Weight - lbs.342
Weight - lbs.4459
Length - Feet23
Length - Feet27
Length overall - Detail23 ft. 0 in
Length overall - Detail27 ft. 4 in
Length overall - Meters7.01
Length overall - Meters8.33
Length overall - Inches276
Length overall - Inches328
Length - Inchesnot available
Length - Inches4
Pontoon and Inflatable Specific
Tube diameter25 in
Tube diameternot available
Engine and Drivetrain
Drive typeOutboard
Drive typeOutboard
Engine max225 hp w/ Performance-III Package: 225 hp
Engine max260 hp
Engine/s standardnot available
Engine/s standard5.0L MPI B3 Mercruiser
Fuel typenot available
Fuel typeGas
Body / Hull
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typePontoon
Operational Info
Maximum capacitynot available
Maximum capacity2,488 lbs
Maximum peoplenot available
Maximum people16

Harris Flotebote Crowne 230 I/O 2006 vs Harris Flotebote Grand Mariner 250 SE 2009 — Common Questions

Which is the larger boat — the Harris Flotebote Crowne 230 I/O 2006 or the Harris Flotebote Grand Mariner 250 SE 2009?
The Harris Flotebote Grand Mariner 250 SE 2009 is the longer of the two at 27,0 feet overall. The Harris Flotebote Crowne 230 I/O 2006 comes in at 23,0 feet, making it roughly 4,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Harris Flotebote Crowne 230 I/O 2006 or the Harris Flotebote Grand Mariner 250 SE 2009?
For trailering, the Harris Flotebote Crowne 230 I/O 2006 has the edge at 342 lbs dry weight versus 4 459 lbs for the Harris Flotebote Grand Mariner 250 SE 2009. 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 Harris Flotebote Grand Mariner 250 SE 2009 is rated to a maximum of 260 hp, giving it the larger power ceiling. The Harris Flotebote Crowne 230 I/O 2006 tops out at 225 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 Harris Flotebote Crowne 230 I/O 2006 is Coast Guard rated for 7 passengers, while the Harris Flotebote Grand Mariner 250 SE 2009 is certified for 16. 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 Harris Flotebote Crowne 230 I/O 2006 and Harris Flotebote Grand Mariner 250 SE 2009 share an 8 ft. 6 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.
Are the Harris Flotebote Crowne 230 I/O 2006 and Harris Flotebote Grand Mariner 250 SE 2009 from the same manufacturer?
Yes — both the Harris Flotebote Crowne 230 I/O 2006 and the Harris Flotebote Grand Mariner 250 SE 2009 are built by Harris Flotebote. 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.