Zodiac Cadet 310 S 2008 vs Zodiac ProJet 350 TC4 2010 - Boat Spec Comparison

Q: Which is the larger boat — the Zodiac Cadet 310 S 2008 or the Zodiac ProJet 350 TC4 2010?

The Zodiac ProJet 350 TC4 2010 is the longer of the two at 11,5 feet overall. The Zodiac Cadet 310 S 2008 comes in at 1,0 feet, making it roughly 10,5 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: Which is easier to trailer — the Zodiac Cadet 310 S 2008 or the Zodiac ProJet 350 TC4 2010?

For trailering, the Zodiac Cadet 310 S 2008 has the edge at 93 lbs dry weight versus 661 lbs for the Zodiac ProJet 350 TC4 2010. 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.

Q: Which boat can handle a bigger outboard?

The Zodiac ProJet 350 TC4 2010 is rated to a maximum of 98 hp, giving it the larger power ceiling. The Zodiac Cadet 310 S 2008 tops out at 15 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.

Q: How many people can each boat hold?

The Zodiac Cadet 310 S 2008 is Coast Guard rated for 5 passengers, while the Zodiac ProJet 350 TC4 2010 is certified for 4. 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.

Q: Which is faster — the Zodiac Cadet 310 S 2008 or the Zodiac ProJet 350 TC4 2010?

The Zodiac ProJet 350 TC4 2010 has the higher rated top speed at 44 mph, versus 22 mph for the Zodiac Cadet 310 S 2008. Real-world speeds depend on motor choice, load, water conditions, and how you run the throttle — rated speeds are achieved under ideal test conditions.

Q: Which boat has the better power-to-weight ratio?

The Zodiac Cadet 310 S 2008 has a better power-to-weight ratio at 6 lbs per hp compared to 7 lbs per hp for the Zodiac ProJet 350 TC4 2010. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.

Q: Are the Zodiac Cadet 310 S 2008 and Zodiac ProJet 350 TC4 2010 from the same manufacturer?

Yes — both the Zodiac Cadet 310 S 2008 and the Zodiac ProJet 350 TC4 2010 are built by Zodiac. 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.

Boat Comparison

Zodiac Cadet 310 S 2008 vs Zodiac ProJet 350 TC4 2010

Zodiac

Zodiac Cadet 310 S 2008

2008

View full specs →

Zodiac

Zodiac ProJet 350 TC4 2010

2010

View full specs →

Detailed Evaluation & Buyer Recommendation

Zodiac Cadet 310 S 2008 vs Zodiac ProJet 350 TC4 2010 — Same Brand, Different Boat

Matching a inflatable non rigid Zodiac Cadet 310 S 2008 against a inflatable rigid Zodiac ProJet 350 TC4 2010 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.

Size is the most obvious dividing line here. The Zodiac ProJet 350 TC4 2010 measures 11,5 feet overall (2010), giving it roughly 10,5 additional feet of deck space compared to the Zodiac Cadet 310 S 2008 at 1,0 feet (2008). Weight tells a clearer story for trailering families: the Zodiac ProJet 350 TC4 2010 tips the scales at 661 lbs — 568 lbs less than the Zodiac Cadet 310 S 2008 at 93 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 98 hp, the Zodiac ProJet 350 TC4 2010 has a 83-hp advantage over the Zodiac Cadet 310 S 2008's 15-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 Zodiac Cadet 310 S 2008 is rated for 5 passengers, while the Zodiac ProJet 350 TC4 2010 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac Cadet 310 S 2008 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Zodiac Cadet 310 S 2008 comes in at 6 lbs per hp versus 7 lbs per hp for the Zodiac ProJet 350 TC4 2010. 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.

Top speed is rated at 44 mph for the Zodiac ProJet 350 TC4 2010 and 22 mph for the Zodiac Cadet 310 S 2008.

Bottom line: Choose the Zodiac Cadet 310 S 2008 if your priority is putting more people on the water — it handles 5 passengers and at 1,0 ft it has the deck room to back that rating up comfortably. The Zodiac ProJet 350 TC4 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.

General Boat Info

MakeZodiac

ModelCadet 310 S

ModelProJet 350 TC4

Model Year2008

Model Year201

Measurements / Dimensions

Weight - Detail93 lbs. (42 kg)

Weight - Detail661 lbs. (350 kg)

Weight - kg42.18

Weight - kg299.82

Weight - lbs.93

Weight - lbs.661

Width [transom] - Detail5 ft. 3 in. (1.6 m) Inside Width: 2 ft. 4 in. (.7 m)

Width [transom] - Detailnot available

Length - Meters3.1

Length - Metersnot available

Length - Feet1

Length - Feet11.5

Length - Inches2

Length - Inchesnot available

Length overall - Detail10 ft. 2 in. (3.1 m) Inside Length: 7 ft. 1 in. (2.17 m)

Length overall - Detail11 ft. 6 in. (3.5 m)

Length overall - Meters3.1

Length overall - Meters3.51

Length overall - Inches122

Length overall - Inches138

Beamnot available

Beam6 ft. 1 in. (1.86 m)

Beam - Metersnot available

Beam - Meters1.85

Beam - Inchesnot available

Beam - Inches73

Deadrisenot available

Deadrise26°

Depth - Detailnot available

Depth - Detail2 ft. 9 in. (0.85 m)

Depth - Centimetersnot available

Depth - Centimeters83.82

Depth - Inchesnot available

Depth - Inches33

Length [deck]not available

Length [deck]8 ft. 3 in. (2.52 m)

Body / Hull

Hull materialInflatable

Hull materialFiberglass

Hull typeInflatable Non Rigid

Hull typeInflatable Rigid

Engine and Drivetrain

Engine/s standard4 hp (3 kW)

Engine/s standardHigh output 4-stroke

Fuel typeGas

Drive typeOutboard

Drive typeJet Drive

Engine max15 hp (12 kW) Recommended Maximum: 10 hp (8 kW)

Engine max98 hp (73 kW)

Fuel tank capacity - Detailnot available

Fuel tank capacity - Detail12 gal. (45 l)

Fuel tank capacity - Litersnot available

Fuel tank capacity - Liters45.42

Fuel tank capacity - Galnot available

Fuel tank capacity - Gal12

Performance

Maximum speed22 mph (36 km/h)

Maximum speed44 mph (70 km/h)

Operational Info

Maximum capacity992 lbs. (450 kg)

Maximum capacity992 lbs. (408 kg)

Maximum people5

Maximum people4

Pontoon and Inflatable Specific

Tube diameternot available

Tube diameter1 ft. 6 in. (0.455 m)

Zodiac Cadet 310 S 2008 vs Zodiac ProJet 350 TC4 2010 — Common Questions

Which is the larger boat — the Zodiac Cadet 310 S 2008 or the Zodiac ProJet 350 TC4 2010?

The Zodiac ProJet 350 TC4 2010 is the longer of the two at 11,5 feet overall. The Zodiac Cadet 310 S 2008 comes in at 1,0 feet, making it roughly 10,5 ft shorter — a meaningful difference in deck room and overall on-water presence.

Which is easier to trailer — the Zodiac Cadet 310 S 2008 or the Zodiac ProJet 350 TC4 2010?

For trailering, the Zodiac Cadet 310 S 2008 has the edge at 93 lbs dry weight versus 661 lbs for the Zodiac ProJet 350 TC4 2010. 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 Zodiac ProJet 350 TC4 2010 is rated to a maximum of 98 hp, giving it the larger power ceiling. The Zodiac Cadet 310 S 2008 tops out at 15 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 Zodiac Cadet 310 S 2008 is Coast Guard rated for 5 passengers, while the Zodiac ProJet 350 TC4 2010 is certified for 4. 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 is faster — the Zodiac Cadet 310 S 2008 or the Zodiac ProJet 350 TC4 2010?

The Zodiac ProJet 350 TC4 2010 has the higher rated top speed at 44 mph, versus 22 mph for the Zodiac Cadet 310 S 2008. Real-world speeds depend on motor choice, load, water conditions, and how you run the throttle — rated speeds are achieved under ideal test conditions.

Which boat has the better power-to-weight ratio?

The Zodiac Cadet 310 S 2008 has a better power-to-weight ratio at 6 lbs per hp compared to 7 lbs per hp for the Zodiac ProJet 350 TC4 2010. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.

Are the Zodiac Cadet 310 S 2008 and Zodiac ProJet 350 TC4 2010 from the same manufacturer?

Yes — both the Zodiac Cadet 310 S 2008 and the Zodiac ProJet 350 TC4 2010 are built by Zodiac. 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.

← Zodiac Cadet 310 S 2008 full specs ← Zodiac ProJet 350 TC4 2010 full specs