Detailed Evaluation & Buyer Recommendation
Zodiac Mark I ST 2009 vs Zodiac Medline II 2012 — Same Brand, Different Boat
Matching a inflatable non rigid Zodiac Mark I ST 2009 against a deep vee Zodiac Medline II 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 150 hp, the Zodiac Medline II 2012 has a 125-hp advantage over the Zodiac Mark I ST 2009's 25-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 5 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.
The Zodiac Medline II 2012 has a documented top speed of 46 mph. Speed data wasn't available for the other model.
The Zodiac Medline II 2012 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Zodiac Mark I ST 2009 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: The Zodiac Medline II 2012 at 19,7 ft is the right call if deck space, comfort, and entertaining are top of your list. The Zodiac Mark I ST 2009 at 11,5 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.
General Boat Info
ModelMark I ST
ModelMedline II
Model Year2009
Model Year2012
Measurements / Dimensions
Length - Feet11.5
Length - Feet19.67
Length overall - Detail11 ft. 6 in. (3.5 m)
Length overall - Detail19 ft. 8 in. (5.98 m)
Length overall - Meters3.51
Length overall - Meters5.99
Length overall - Inches138
Length overall - Inches236
Beamnot available
Beam8 ft. 2 in. (2.5 m)
Beam - Metersnot available
Beam - Meters2.49
Beam - Inchesnot available
Beam - Inches98
Weight - Detailnot available
Weight - Detail1,521 lbs. (690 kg)
Weight - kgnot available
Weight - kg689.91
Weight - lbs.not available
Weight - lbs.1521
Width [transom] - Detailnot available
Width [transom] - Detail4 ft. 5 in. (1.35 m) inside width
Length [deck]not available
Length [deck]16 ft. 3 in. (4.95 m) inside length
Body / Hull
Hull materialInflatable
Hull materialFiberglass
Hull typeInflatable Non Rigid
Hull typeDeep Vee
Engine and Drivetrain
Drive typeOutboard
Drive typeOutboard
Engine max25 hp (19 kW)
Engine max150 hp (112 kW)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail58.1 gal. (220 l)
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters219.55
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal58.1
Operational Info
Maximum capacity1,300 lbs. (590 kg)
Maximum capacity2,425 - 3,417 lbs. (1,100 - 1,550 kg)
Maximum people5
Maximum people5 / 11
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter1 ft. 11 in. (0.575 m)
Number of tubesnot available
Number of tubesAirtight Compartments: 5
Performance
Maximum speednot available
Maximum speed46 mph (74 km/h)