Contents of Report
The Stingray 212SC is the builder’s largest deckboat at just under 22’ (6.71 m) LOA and has a layout that’s focused on bringing family and friends out for a day on the water, with seating up to 12 and doing it all at a competitive price. The helm console is compact and has a dashboard that puts all the controls at hand yet opens up to offer a changing room that can be outfitted with an optional Porta-Potti to serve as a head.
The Mercury FourStroke 3.4L V-6 outboard that powered our test boat gave her the kind of performance that’s generated by a 4-valve-per-cylinder V-6 with a large 3.4-liter displacement. The outboard uses the latest technology to manage engine functions, making for efficient, simple operation.
Stingray uses its proprietary Z-plane hull design, which essentially builds the strakes into the molding of the hull’s running surface without adding wetted surface. According to Stingray, the benefits come at speed, where the Z-plane strakes serve as horizontal planing faces when they are submerged. When the hull gets on plane and the Z-plane strakes approach the surface of the water, the outboard edge of the strake releases the spray, and does not generate any turbulence or bubbles, says the builder. This smooth flow of water gives the propeller at the hull’s trailing edge more bite, according to Stingray, and is intended to provide better speed in a straight line and more responsive control during cornering.
Stingray has long been on the leading edge of trends in the industry, whether it was the use of CAD-driven CNC routers to produce high-quality production parts in 1985, the employment of robotics lamination in 1989, the use of multi-axis CNC routers to produce full-scale tooling in 1994, and the use of environmentally friendly low-VOC resins and gelcoat in construction. All of these techniques have since seen widespread adoption across the industry.
The boats are built using conventional FRP molding techniques and use polyester resin and e-glass in biaxial, woven roving and continuous strand mat. CNC routers and a waterjet machine make computer-controlled, precision cuts on parts such as bulkheads, doors, carpet, and upholstery.
Design Parameters – and Comparisons
The idea of a deckboat is to bring along a crowd of friends for an enjoyable day on the water. Outboard power today adds some exciting performance to the mix, while also freeing up space – there’s no sterndrive engine box. It’s what the builder does with that space that makes a difference.
The Stingray 212SC Deck Boat has a LOA of 21’11” (6.68 m) and a beam of 102” (2.59 m). With an empty weight of 3,100 lbs. (1,406 kg), 42.75 gallons (162 L) of fuel and two people onboard, we had an estimated test weight of 3,866 lbs. (1,754 kg). The boat was powered by a 200-hp Mercury FourStroke 3.4-liter V-6 outboard turning a 14 x 19 Enertia ss prop.
We reached a top speed of 53.2 mph at 5840 rpm. Best economic cruise came in at 3000 rpm and 23 mph. It was at that speed that the 4.4-gph fuel burn translated into 5.3 mpg and a range of 235.3 statute miles.
Our testing also revealed a fast cruise of 35.3 mph at 4000 rpm. At that speed she had a fuel burn of 8.0 gph, which translated into a fuel economy of 4.4 mpg and a range of 228 statute miles.
Comparison of Deckboat Tests
Other outboard-powered deckboats we’ve sea-trialed had test weights similar to that of the Stingray at 3,866 lb. (1,754 kg), which is based on a dry weight of 3,100 lbs. (1,406 kg). The dimensions of each boat were similar as well, within 13” (longer or shorter) of the Stingray 212SC’s LOA of 21’11” (6.68 m) and most sharing the 8’5” beam. Boats in our comparison set powered with 150- and 200-hp outboards topped out from 43.6 to 47.8 mph. One comparison boat was equipped with a previous-generation 225-hp Mercury Verado, and it topped out at 51 mph. But none had as fast a top end as the Stingray 212SC Deck Boat at 53.2 mph.
The Stingray 212SC Deck Boat benefits from the Mercury FourStroke 200 outboard. The Stingray gave us a good dry ride, but of course, we didn’t really see much in the way of challenging conditions on the lake – but in fact lake conditions are exactly what this boat is intended to encounter. She was well mannered and stable in turns with a comforting inboard lean, and her hull threw any spray low and to the side.
3.4-Liter V-6 FourStroke Platform
Much of the innovative design of the 3.4-liter V-6 FourStroke comes from the mandate for the new line: It had to be powerful and lightweight, quiet, and efficient. Consider that the 3.4-liter displacement of the FourStroke 200 is double the 1.7-liter displacement of the inline-4 Mercury Verado 200, and yet it weighs 35 lbs. (16 kg) less.
More Torque. Displacement is one way to generate more torque in a 4-stroke engine, and this is a substantial jump in power-to-weight ratio that translates to better performance. The double-overhead cam design combines with an enlarged intake to deliver plenty of air and fuel when it’s needed.
Though the outboard can be rigged with mechanical controls, its throttle is managed electronically. Base calibration is properly set to minimize burn at each level, on the dyno. All engines are digitally throttled, and the digital control or mechanical cable both work through a potentiometer and a throttle body.
The outboard has been designed to be light, but also to keep its noise to itself. The design starts blocking noise with the cowl itself – the entire outboard is sealed to keep engine noise in. The engine uses an air intake that’s designed to be quieter – Mercury has been using a variant of this since it introduced the Verado line, but it works, so why stop now? All the lightweight parts used were designed to also keep sound in, masking the noise of the injectors. Does it work? Our test recorded a sound level of 84 decibels at a 5840 rpm WOT and 53.2 mph, which compares favorably with other tests of the Stingray 212SC that we’ve read with a smaller Yamaha outboard.
The exhaust is routed from the top of the engine, down the centerline, between the V formed by the cylinder banks the engine. This allowed Mercury to keep the cowl width slimmer, allowing the outboard to be installed on 26” (.66 m) centers.
The exhaust-system design uses two separate mufflers located beneath the “chaps,” as the manufacturer calls the panels on either side of the midsection.
Mercury looked closely at the mounting system on the midsection of the outboard and calculated where the vibration comes from on the engine. Engineers determined the vectors of vibrational force, i.e., whether the vibration is moving fore and aft, or athwartships, or some angle in between. The engineers then designed the mounts to offset that vibration at a suitable angle. Because of this analysis, the mounts can be engineered to be firmer, rather than just softening them up to damp any vibration – and in this way they are also designed to maximize engine performance.
Top Cowl Service Door
Perhaps one of the more noteworthy features of this line, Mercury placed a watertight hatch in the top of the cowl to provide access to the dipstick as well as the oil fill. There’s a decal outlining service requirements along with a QR code to allow a smartphone to link to additional service information.
Under the top cowl service door, there’s a handle that lifts with a red button. Lifting that handle releases the latches all around the cowl, so it can be lifted off easily.
The FourStroke outboard is designed to be rigged with either electronic or mechanical controls. This will make the outboard more adaptive to repowers. The outboard mounts on 26” (66.04 cm) centers, which makes it fit on a large variety of transoms, compared to the Yamaha F200, which mounts on 28.5” (72.39 cm) centers.
Idle Charge Battery Management
The alternator on the FourStroke 3.4-liter V-6 outboard has a maximum output of 85 amps, with 76 amps for boat systems. At idle the alternator provides 20 amps for the boat.
Simply put, the engine-management system detects when the batteries drop below acceptable levels due to increased power draw. Today’s boats have more electric and electronic devices on board than ever before, and they all require a flow of clean juice to keep operating properly. Whether the onboard systems are charging trolling-motor batteries, keeping the sound system thumping, or running big-screen helm electronics, including a chart plotter, CHIRP sounder, and radar, the system increases idle rpm to boost alternator output, to help charge batteries to compensate for power draw. It raises the idle level from 600 rpm to around 800, to get to the next level on the curve of the alternator, and in this mode, it delivers 30 amps of usable power. While the engine is revving slightly higher, it’s still at a speed where it’s able to shift.
The lower unit on the FourStroke outboards has been redesigned with a newly updated hydrodynamic running surface relative to the center of gravity of the engine. It’s designed to maximize handling while housing a proven 4.8” (1.22 m) gearcase.
Adaptive Speed Control
This proprietary system maintains engine speed regardless of condition, and Mercury has it patented. The idea is that the rpm remains constant even when seas are rough, the driver puts the boat into a hard turn, or a tow sport that requires steady power. Adaptive Speed Control is a function of the ECU, measuring operator demand and engine load and adjusting the throttle position electronically.
Advanced Range Optimization
Because the outboard uses a digital throttle control, it can also improve its own fuel economy. It begins when the system detects a steady-state mode, where the driver isn’t adjusting the throttle constantly. Once the operator variable appears to be set, the digital control tunes the throttle plate and the spark to lean out the fuel burn to maximize fuel economy, optimizing the boat’s range. The system works in conjunction with Active Trim, Mercury’s proprietary automatic engine trim system, which tunes the trim for optimal efficiency.
A Note About Active Trim
While expert drivers may sneer at the idea of active trim, it has been shown to work in our testing, and can even offer something to those who may think their feel for boat trim is more effective than that of a computer: Active trim synchs up the trim of the engines, letting the expert trimmer tune the rig more effectively, rather than dealing with trim motors that adjust the engines in a multiple-outboard installation at various rates.
Emissions—3-Star CARB Rating
The outboards have received a 3-star emission rating from CARB, and are compliant to the U.S. and E.U. regulations as well, all on one calibration.
The stern area of the Stingray 212SC Deck Boat consists of a pair of swim platforms flanking a triangular well where the Mercury FourStroke 200 outboard is mounted. The swim platforms each have a locker for stowing gear such as swim goggles, dive masks, and tow lines for water skiing.
To enter the cockpit from the swim platform, there’s a 19” wide pass-through to starboard. To get to the main deck, one coming aboard must make two steps down, a 6” step from the pass-through, and then a 7” step down to the cockpit sole.
The cockpit has an L-shaped settee that wraps around one side of the cockpit and also faces the swivel helm seat. There’s a receiver in the deck that accepts a table pedestal. Stereo speakers are situated around the interior of the boat to make the most of the helm-mounted stereo and the boat has four speakers and two additional optional remotes (starting at $338) to mount on the transom or other gathering spots.
The standard bucket-style helm seat has a curved back that helps keep the helmsman behind the wheel during high-speed maneuvers, yet has a large cutout to allow for ventilation. The seat also has a flip-up bolster and can swivel, putting the captain at the center of the party when the boat is stopped.
With a curved tinted-acrylic windscreen on top, the helm has an Italian-style black-wrapped tilt wheel. The Stingray uses the Mercury mechanical throttle control, which connects via cables to a digital throttle and shift module on the engine itself. The dashboard has a 5” Simrad Go5 touchscreen flanked by analog gauges, including a gauge showing engine trim, a combination speedometer and fuel gauge, and a tachometer with a voltmeter.
As part of the Convenience Package of included options, the dash has sealed receptacles for USB and media inputs on one side of a flat space lined with a synthetic cork material for holding a smartphone, and there’s a 12-volt plug (part of the Convenience package) on the other side. The USB plug is for media transfer only and is not used to charge devices, so boaters should plan on bringing a USB cigarette-lighter adapter.
On the helm’s lower dash panel is a Marine Audio 160-watt stereo with Bluetooth connectivity. Beneath that is the ignition and stereo power switch. On the starboard side of the wheel is a panel with switches.
With the Mercury VesselView functions integrated into the Simrad system, engine features such as the proprietary Active Trim and Adaptive Speed Control, as well as trolling-speed and tow-sports control systems can be controlled from this touchscreen.
Across from the helm on the port side, there is a sink and a wastebasket with lid. A dedicated spot beneath holds a fire extinguisher. Forward are a couple of steps that simplify boarding when tied up port side to. These steps are finished with a nonskid pattern for improved safety. Both steps have hinged lids that lift to reveal storage bins, the lower one is designed for a 25-quart (23-liter) Igloo ice chest. On a boat of this size, it’s a good idea to have dedicated cooler space, since everyone wants a cold drink at some point, but no one wants to trip over a big ice chest in the middle of the deck.
Inside the Console
From the inboard side of the console, a two-piece door gives access to a compartment that can be fitted out with an optional Porta-Potti inside ($338). A rack in the console provides dedicated storage for a cockpit table with an offset pedestal leg available as part of the Convenience Package, but a teak version is an option ($320). On smaller boats, it’s important to have places to stow things like coolers and tables, or else they are constantly in the way and may get left at home.
The foredeck area has wraparound seating in benches to port and starboard. Each have lockers beneath as well as seatbacks on their aft ends to facilitate legs-up lounging while facing forward. The port-side seatback is removable, on stainless steel pedestals, while the starboard seatback is affixed to the forward side of the console). Padded bolsters all around mean these benches are ready to welcome guests in comfort. A receiver in the deck accepts a pedestal table and increases the entertainment value for the bow area. There are grabrails on the covering boards here, a good safety feature.
A livewell is beneath the removable centerline cushion. With the cushion removed, this is a convenient step to the bow where there’s a hatch covering a folding, telescoping, stainless steel boarding ladder and an anchor locker equipped with anchor keepers. We would prefer a centerline cleat on the bow to which the rode could be secured. The bow also has a pull-up shower to port, so reboarding beachgoers can rinse off the sand.
Price subject to change without notice.
Stingray has a list of standard equipment for the 212SC Deck Boat, including what the company calls a Convenience Package of no-charge add-ons valued at $1,661.
The Convenience Package includes:
- • Cockpit table with offset leg
- • Removable 25-quart Igloo cooler
- • 12-volt dash accessory plug
- • Electronic engine hour meter
- • Aft storage box
- • Freshwater sink
- • Italian steering wheel
- • Marine audio 160-watt stereo with Bluetooth and USB connections
- • SS spring line cleats
- • Tinted windscreen
Optional Equipment and Features
Available equipment options for the Stingray 212SC Deck Boat include:
- • Dual battery system with VSR and switch ($298)
- • Battery on/off switch with safety key ($109)
- • Porta-Potti with dockside pump-out ($338)
- • Battery charger (110 volt) ($217)
- • Dual battery system with VSR for CE option ($298)
- • LED docking lights - stainless steel ($326)
- • Porta-Potti with level indicator ($152)
- • Digital depth finder with depth alarm ($375)
- • Center front bow cushion ($126)
- • Stereo remote(s) marine audio ($338)
- • Polk stereo remote(s) ($449)
- • Bow and cabin filler Cushions ($525)
- • Blue LED underwater and speaker lghting ($563)
- • Polk 200W audio system ($725)
- • Seagrass flooring (Standard layout) ($692)
- • Pressurized water with bow and transom shower ($523)
- • Teak cockpit table (upgrade) ($320)
- • Folding wake tower with top ($3,838)
- • Stainless steel ski pole (removable) ($517)
- • Bow livewell and 2 SS rod holders ($525)
- • Sunbrella cockpit cover ($960)
- • Sunbrella Bimini top with SS Frame ($1,448)
- • Forward Bimini top ($840)
- • Optional canvas color ($152)
- • Sunbrella cockpit cover-wake tower ($960)
The Stingray 212SC Deck Boat also has option packages, including:
- • The Fishing Package ($642) has a removable trolling-motor mount, with wiring harness and plug, a bow fishing seat, stainless steel rod holders and an aft fishbox.
- • The Preferred Equipment Group ($1,855) has an upgraded bilge pump with 1,100 gph, a Sunbrella Bimini top with stainless steel frame, a deluxe bolster seat, LED cockpit lighting, the Marine Audio stereo, tilt steering, and a stainless steel multi-step bow ladder.
- • The Stainless Steel Hardware Package ($242) includes a stainless steel horn cover, cup holders, dash rail, Bimini top quick connects, and a frame on the window in the console changing room/head compartment.
Stingray Boat Company warrants the hull against structural defects in material and workmanship for a period of 10 years from the date of purchase. The remaining term of this hull warranty, up to 5 years, may be transferred to the second owner if, within 60 days of purchase, the new owner registers the transfer with an authorized Stingray dealer and pays a $75 transfer fee. Stingray warrants against hull blistering caused by osmosis that is discovered and reported to the builder during the first 3 years of ownership. Stingray boats are warranted to the original owner to be free of defects in materials or workmanship for a period of 1 year from the date of purchase, subject to limitations and conditions.
Test Result Highlights
- Top speed for the Stingray 212SC Deck Boat (2018-) is 53.2 mph (85.6 kph), burning 18.0 gallons per hour (gph) or 68.13 liters per hour (lph).
Standard and Optional Features
Full Warranty Information on this brand coming soon!
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