Chaparral 280 SSi Sportboat 2005 boat specs
Chaparral
Chaparral 280 SSi Sportboat 2005
2005
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VS
Chaparral Signature 310  2012 boat specs
Chaparral
Chaparral Signature 310 2012
2012
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Chaparral 280 SSi Sportboat 2005 vs Chaparral Signature 310 2012 — Same Brand, Different Boat

Matching a modified vee Chaparral 280 SSi Sportboat 2005 against a deep vee Chaparral Signature 310 2012 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.

The power gap is worth calling out. Rated to 540 hp, the Chaparral Signature 310 2012 has a 220-hp advantage over the Chaparral 280 SSi Sportboat 2005's 320-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Chaparral 280 SSi Sportboat 2005 carries 143 gallons versus 125 gallons in the Chaparral Signature 310 2012. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

The Chaparral 280 SSi Sportboat 2005 is rated for up to 8 people. Passenger data for the Chaparral Signature 310 2012 wasn't available.

Bottom line: Performance buyers should lean toward the Chaparral Signature 310 2012 and its 540-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Chaparral 280 SSi Sportboat 2005 with its 320-hp rating is the more economical daily driver.
General Boat Info
MakeChaparral
MakeChaparral
Model280 SSi Sportboat
ModelSignature 31
Model Year2005
Model Year2012
Measurements / Dimensions
Beam9 ft. 3 in. (2.82 m)
Beam10 ft. (3.05 m)
Beam - Meters2.82
Beam - Meters3.05
Beam - Inches111
Beam - Inches12
Bridge clearance - DetailWith Arch: 8 ft. 1 in. (2.46 m) Without Arch: 5 ft. 10 in. (1.78 m)
Bridge clearance - DetailWith Hardtop: 10 ft. 6 in. (3.2 m)
Bridge clearance - Meters2.46
Bridge clearance - Meters3.2
Bridge clearance - Inches97
Bridge clearance - Inches126
Deadrise22℃
Deadrise19℃
Draft [drive up] - Detail21 in. (53 cm)
Draft [drive up] - Detail23 in. (58 cm)
Draft [drive up] meters0.53
Draft [drive up] meters0.58
Draft [drive up] inches21
Draft [drive up] inches23
Draft [max] - Detail35 in. (89 cm)
Draft [max] - Detail39 in. (99 cm)
Draft [max] - Meters0.89
Draft [max] - Meters0.99
Draft [max] - Inches35
Draft [max] - Inches39
Weight - Detail6,800 lbs. (3,084 kg)
Weight - Detail10,600 lbs. (4,808 kg)
Weight - kg3084.43
Weight - kg4808.08
Weight - lbs.68
Weight - lbs.106
Length [over all with swim platform]29 ft. 6 in. (8.99 m)
Length [over all with swim platform]31 ft. (9.45 m)
Length overall - Detail27 ft. 6 in. (8.31 m)
Length overall - Detailnot available
Length overall - Meters8.38
Length overall - Metersnot available
Length overall - Inches33
Length overall - Inchesnot available
Length - Feetnot available
Length - Feet31
Body / Hull
Hull typeModified Vee
Hull typeDeep Vee
Hull materialnot available
Hull materialFiberglass
Engine and Drivetrain
Engine/s standard375 hp
Engine/s standardnot available
Fuel tank capacity - Detail143 gal. (541 l)
Fuel tank capacity - Detail125 gal. (473 l)
Fuel tank capacity - Liters541.31
Fuel tank capacity - Liters473.18
Fuel tank capacity - Gal143
Fuel tank capacity - Gal125
Engine maxTwin 320 hp (Twin 239 kw)
Engine max540 hp (403 kW)
Fuel typenot available
Fuel typeGas or Diesel
Drive typenot available
Drive typeI/O - Twin
Operational Info
HeadEnclosed Fiberglass
Headnot available
Water capacity30 gal. (114 l)
Water capacity40 gal. (151 l)
Maximum peopleYacht Certified
Maximum peopleYacht certified
Holding tank capacity - Detail9.5 gal. (36 l)
Holding tank capacity - Detail28 gal. (106 l)
Holding tank capacity - Liters37.85
Holding tank capacity - Liters105.99
Holding tank capacity - Gal9.5
Holding tank capacity - Gal28
Headroomnot available
Headroom6 ft. 3 in. (1.91 m)
Sleeping capacitynot available
Sleeping capacity6

Chaparral 280 SSi Sportboat 2005 vs Chaparral Signature 310 2012 — Common Questions

Which is easier to trailer — the Chaparral 280 SSi Sportboat 2005 or the Chaparral Signature 310 2012?
For trailering, the Chaparral 280 SSi Sportboat 2005 has the edge at 68 lbs dry weight versus 106 lbs for the Chaparral Signature 310 2012. 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 Chaparral Signature 310 2012 is rated to a maximum of 540 hp, giving it the larger power ceiling. The Chaparral 280 SSi Sportboat 2005 tops out at 320 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 passengers can the Chaparral 280 SSi Sportboat 2005 carry?
The Chaparral 280 SSi Sportboat 2005 has an official capacity rating of 8 people. Capacity data wasn't available for the other model in this comparison — verify directly with the dealer.
Which boat is wider, and does it affect trailering?
The Chaparral 280 SSi Sportboat 2005 measures 111" wide, compared to 12" for the Chaparral Signature 310 2012. 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.
Which boat has the larger fuel tank — the Chaparral 280 SSi Sportboat 2005 or the Chaparral Signature 310 2012?
The Chaparral 280 SSi Sportboat 2005 has the bigger tank at 143 gallons, versus 125 gallons on the Chaparral Signature 310 2012. That 18-gallon difference translates to roughly 54–90 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Chaparral 280 SSi Sportboat 2005 and Chaparral Signature 310 2012 from the same manufacturer?
Yes — both the Chaparral 280 SSi Sportboat 2005 and the Chaparral Signature 310 2012 are built by Chaparral. 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.