Princecraft Fish n' Promenade  SP 186 FNP I/O SE 2005 boat specs
Princecraft
Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005
2005
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VS
Princecraft Vectra 16 2008 boat specs
Princecraft
Princecraft Vectra 16 2008
2008
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Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 vs Princecraft Vectra 16 2008 — Same Brand, Different Boat

The Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 vs Princecraft Vectra 16 2008 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 Fish n' Promenade SP 186 FNP I/O SE 2005 at 18,0 ft versus Princecraft Vectra 16 2008 at 16,0 ft. Weight tells a clearer story for trailering families: the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 tips the scales at 2 445 lbs — 1 517 lbs more than the Princecraft Vectra 16 2008 at 928 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 220 hp, the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 has a 190-hp advantage over the Princecraft Vectra 16 2008'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 Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 is rated for 8 passengers, while the Princecraft Vectra 16 2008 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 comes in at 11 lbs per hp versus 31 lbs per hp for the Princecraft Vectra 16 2008. 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 Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 if your priority is putting more people on the water — it handles 8 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Princecraft Vectra 16 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakePrincecraft
MakePrincecraft
ModelFish n' Promenade SP 186 FNP I/O SE
ModelVectra 16
Model Year2005
Model Year2008
Measurements / Dimensions
Beam94 in. (2.4 m)
Beam6 ft. 0 in. (1.8 m)
Beam - Meters2.39
Beam - Meters1.83
Beam - Inches94
Beam - Inches72
Depth - Detail43 in. (1.1 m)
Depth - Detailnot available
Depth - Centimeters109.22
Depth - Centimetersnot available
Depth - Inches43
Depth - Inchesnot available
Draft [max] - Detail30 in. (0.8 m)
Draft [max] - Detailnot available
Draft [max] - Meters0.76
Draft [max] - Metersnot available
Draft [max] - Inches3
Draft [max] - Inchesnot available
Weight - Detail2,445 lbs. (1,018 kg)
Weight - Detail928 lbs. (421 kg)
Weight - kg1109.03
Weight - kg420.93
Weight - lbs.2445
Weight - lbs.928
Width [transom] - Detail76 in. (1.9 m)
Width [transom] - Detailnot available
Height [transom]32 in. (0.8 m)
Height [transom]not available
Length - Meters5.6
Length - Meters4.9
Length - Feet18
Length - Feet16
Length - Inches4
Length - Inches4
Length overall - Detail18 ft. 4 in. (5.6 m)
Length overall - Detail16 ft. 4 in. (4.9 m)
Length overall - Meters5.59
Length overall - Meters4.98
Length overall - Inches22
Length overall - Inches196
Length [at waterline]not available
Length [at waterline]Pontoon: 16 ft. 4 in. (4.9 m)
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 - Detail60 gal. Built-in (227 l) (Specifications based on boat equipped with 4.3 l engine)
Fuel tank capacity - DetailPortable
Fuel tank capacity - Liters227.12
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal6
Fuel tank capacity - Galnot available
Drive typeI/O
Drive typeOutboard
Engine max220 hp (164 kw)
Engine max30 hp (24 kW)
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity1,300 lbs. (589 kg)
Maximum capacityPerson: 885 lbs. (401 kg) Total: 1,303 lbs. (591 kg)
Maximum people8
Maximum people6
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 Fish n' Promenade SP 186 FNP I/O SE 2005 vs Princecraft Vectra 16 2008 — Common Questions

Which is the larger boat — the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 or the Princecraft Vectra 16 2008?
The Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 is the longer of the two at 18,0 feet overall. The Princecraft Vectra 16 2008 comes in at 16,0 feet, making it roughly 2,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 or the Princecraft Vectra 16 2008?
For trailering, the Princecraft Vectra 16 2008 has the edge at 928 lbs dry weight versus 2 445 lbs for the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005. 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 Fish n' Promenade SP 186 FNP I/O SE 2005 is rated to a maximum of 220 hp, giving it the larger power ceiling. The Princecraft Vectra 16 2008 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 Fish n' Promenade SP 186 FNP I/O SE 2005 is Coast Guard rated for 8 passengers, while the Princecraft Vectra 16 2008 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 Fish n' Promenade SP 186 FNP I/O SE 2005 has a better power-to-weight ratio at 11 lbs per hp compared to 31 lbs per hp for the Princecraft Vectra 16 2008. 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 Fish n' Promenade SP 186 FNP I/O SE 2005 measures 94" wide, compared to 72" for the Princecraft Vectra 16 2008. 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 Fish n' Promenade SP 186 FNP I/O SE 2005 and Princecraft Vectra 16 2008 from the same manufacturer?
Yes — both the Princecraft Fish n' Promenade SP 186 FNP I/O SE 2005 and the Princecraft Vectra 16 2008 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.