Detailed Evaluation & Buyer Recommendation
Zodiac Cadet 340 S 2008 vs Zodiac Pro Open 850 2011 — Same Brand, Different Boat
Matching a inflatable non rigid Zodiac Cadet 340 S 2008 against a inflatable rigid Zodiac Pro Open 850 2011 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 Pro Open 850 2011 measures 27,9 feet overall (2011), giving it roughly 16,9 additional feet of deck space compared to the Zodiac Cadet 340 S 2008 at 11,0 feet (2008). Weight tells a clearer story for trailering families: the Zodiac Pro Open 850 2011 tips the scales at 3 307 lbs — 3 192 lbs less than the Zodiac Cadet 340 S 2008 at 115 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 350 hp, the Zodiac Pro Open 850 2011 has a 330-hp advantage over the Zodiac Cadet 340 S 2008's 20-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 Pro Open 850 2011 is rated for 8 passengers, while the Zodiac Cadet 340 S 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac Pro Open 850 2011 could be the deciding factor.
Bottom line: Choose the Zodiac Pro Open 850 2011 if your priority is putting more people on the water — it handles 8 passengers and at 27,9 ft it has the deck room to back that rating up comfortably. The Zodiac Cadet 340 S 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
ModelCadet 340 S
ModelPro Open 85
Model Year2008
Model Year2011
Measurements / Dimensions
Weight - Detail115 lbs. (52 kg)
Weight - Detail3,307 lbs. (1,500 kg)
Weight - kg52.16
Weight - kg1500.03
Weight - lbs.115
Weight - lbs.3307
Width [transom] - Detail5 ft. 11. (1.79 m) Inside Width: 2 ft. 7 in. (.78 m)
Width [transom] - Detailnot available
Length - Meters3.4
Length - Metersnot available
Length - Feet11
Length - Feet27.92
Length - Inches2
Length - Inchesnot available
Length overall - Detail11 ft. 2 in. (3.4 m) Inside Length: 8 ft. 2 in. (2.48)
Length overall - Detail27 ft. 11 in. (8.5 m)
Length overall - Meters3.4
Length overall - Meters8.51
Length overall - Inches134
Length overall - Inches335
Beamnot available
Beam9 ft. 10 in. (3 m)
Beam - Metersnot available
Beam - Meters3
Beam - Inchesnot available
Beam - Inches118
Body / Hull
Hull materialInflatable
Hull materialFiberglass
Hull typeInflatable Non Rigid
Hull typeInflatable Rigid
Engine and Drivetrain
Engine/s standard6 hp (5 kW)
Engine/s standardnot available
Drive typeOutboard
Drive typeOutboard
Engine max20 hp (15 kW) Recommended Maximum: 15 hp (12 kW)
Engine max350 hp (262 kW)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail106 gal. (400 l)
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters401.25
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal106
Performance
Maximum speed28 mph (45 km/h)
Maximum speed57 mph (91 km/h)
Operational Info
Maximum capacity1,653 lbs. (750 kg)
Maximum capacity3,538 - 4,696 lbs. (1,605 - 2,130 kg)
Maximum people5+1
Maximum people8 / 15
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter2 ft. 0 in. (0.6 m)