Princecraft SP 178 SC SE 2006 boat specs
Princecraft
Princecraft SP 178 SC SE 2006
2006
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VS
Princecraft Vectra 16 2007 boat specs
Princecraft
Princecraft Vectra 16 2007
2007
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Princecraft SP 178 SC SE 2006 vs Princecraft Vectra 16 2007 — Same Brand, Different Boat

The Princecraft SP 178 SC SE 2006 vs Princecraft Vectra 16 2007 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.

On paper these two are close siblings in the size department — Princecraft SP 178 SC SE 2006 at 17,0 ft versus Princecraft Vectra 16 2007 at 16,0 ft. Weight tells a clearer story for trailering families: the Princecraft Vectra 16 2007 tips the scales at 928 lbs — 811 lbs less than the Princecraft SP 178 SC SE 2006 at 117 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 150 hp, the Princecraft SP 178 SC SE 2006 has a 120-hp advantage over the Princecraft Vectra 16 2007's 30-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

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.

At this size, power-to-weight ratio matters more than outright horsepower. The Princecraft SP 178 SC SE 2006 comes in at 1 lbs per hp versus 31 lbs per hp for the Princecraft Vectra 16 2007. 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: Performance buyers should lean toward the Princecraft SP 178 SC SE 2006 and its 150-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Princecraft Vectra 16 2007 with its 30-hp rating is the more economical daily driver.
General Boat Info
MakePrincecraft
MakePrincecraft
ModelSP 178 SC SE
ModelVectra 16
Model Year2006
Model Year2007
Measurements / Dimensions
Beam92 in. (2.3 m)
Beam6 ft. 0 in. (1.8 m)
Beam - Meters2.34
Beam - Meters1.83
Beam - Inches92
Beam - Inches72
Depth - Detail40 in. (1.0 m)
Depth - Detailnot available
Depth - Centimeters101.6
Depth - Centimetersnot available
Depth - Inches4
Depth - Inchesnot available
Draft [max] - Detail31 in. (0.8 m)
Draft [max] - Detailnot available
Draft [max] - Meters0.79
Draft [max] - Metersnot available
Draft [max] - Inches31
Draft [max] - Inchesnot available
Weight - Detail1,170 lbs. (531 kg)
Weight - Detail928 lbs. (421 kg)
Weight - kg530.7
Weight - kg420.93
Weight - lbs.117
Weight - lbs.928
Width [transom] - Detail75 in. (1.9 m)
Width [transom] - Detailnot available
Height [transom]25 in. (0.6 m)
Height [transom]not available
Length - Meters5.3
Length - Meters4.9
Length - Feet17
Length - Feet16
Length - Inches5
Length - Inches4
Length overall - Detail17 ft. 5 in. (5.3 m)
Length overall - Detail16 ft. 4 in. (4.9 m)
Length overall - Meters5.31
Length overall - Meters4.98
Length overall - Inches209
Length overall - Inches196
Length [deck]not available
Length [deck]16 ft. 0 in. (4.8 m)
Body / Hull
Hull thicknessBottom: .100 in. (2.5 mm) Side: .072 in. (1.8 mm)
Hull thicknessnot available
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typePontoon
Engine and Drivetrain
Fuel tank capacity - Detail35 gal. (132 l)
Fuel tank capacity - DetailPortable
Fuel tank capacity - Liters132.49
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal35
Fuel tank capacity - Galnot available
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max150 hp (112 kw)
Engine max30 hp (24 kW)
Operational Info
Maximum capacity1,488 lbs. (675 kg)
Maximum capacityPerson: 885 lbs. (401 kg) Total: 1,303 lbs. (591 kg)
Maximum people6
Maximum people6
Trailer Info
Trailer - DetailStandard Black Painted Bunk Style Trailer
Trailer - Detailnot available
Trailer - Weight503 lbs. (228 kg)
Trailer - Weightnot available
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter21 in. (0.53 m)
Tube gaugenot available
Tube gauge0.080 in. (2 mm)
Number of tubesnot available
Number of tubes2

Princecraft SP 178 SC SE 2006 vs Princecraft Vectra 16 2007 — Common Questions

Which is the larger boat — the Princecraft SP 178 SC SE 2006 or the Princecraft Vectra 16 2007?
The Princecraft SP 178 SC SE 2006 is the longer of the two at 17,0 feet overall. The Princecraft Vectra 16 2007 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 Princecraft SP 178 SC SE 2006 or the Princecraft Vectra 16 2007?
For trailering, the Princecraft SP 178 SC SE 2006 has the edge at 117 lbs dry weight versus 928 lbs for the Princecraft Vectra 16 2007. 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 Princecraft SP 178 SC SE 2006 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Princecraft Vectra 16 2007 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 Princecraft SP 178 SC SE 2006 is Coast Guard rated for 6 passengers, while the Princecraft Vectra 16 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 has the better power-to-weight ratio?
The Princecraft SP 178 SC SE 2006 has a better power-to-weight ratio at 1 lbs per hp compared to 31 lbs per hp for the Princecraft Vectra 16 2007. 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 Princecraft SP 178 SC SE 2006 measures 92" wide, compared to 72" for the Princecraft Vectra 16 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.
Are the Princecraft SP 178 SC SE 2006 and Princecraft Vectra 16 2007 from the same manufacturer?
Yes — both the Princecraft SP 178 SC SE 2006 and the Princecraft Vectra 16 2007 are built by Princecraft. 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.