If Jupiter built cars, they’d be Porsches. The 340LS would be the Cayenne, a luxury SUV with raw power, impressively nimble, and styled in luxury. It’s just that the 340LS can fish too.

First, the power. Triple Yamaha 300 hp outboards gave us rapid acceleration and a top speed that will eat the seas at nearly 60 mph and do it in smooth, wave-­slicing style. In corners, the power steering, thrust, and crisp V-bottom with a ­24-degree transom deadrise cornered like a Porsche. Yamaha’s full maneuverability captures that raw power, and it tangos sideways with the joystick.

The helm station makes easy business of managing this nimble performer. Navigation displays report engine functions while a Yamaha display offers compact redundancy. Digital switching ensures the reliable electrical systems and tactile buttons offer at-a-glance access to the most common functions. A tilt wheel and plenty of phone chargers add convenience.

Tall or short skippers are accommodated with a drop-down helm step and custom ladder-back, teak-trimmed ­bucket seats. Teak trim on the double lounge forward of the helm and the seatbacks of the bow lounges screams “largesse” loud enough, you don’t need to crank up the premium stereo with multiple amps and subs to show off. 

But the 340LS is set up to be ­lethal. A 60-gallon livewell, centered on the transom, features an aquarium front. For comfort, a double jump seat nests over it, with a bottom cushion held in place by a sail rail, allowing it to tilt forward to lift the livewell lid. Slide it out and stow it for more serious work. The seatback has rod holders to replace the rod holders that secure it. Fish boxes are pumped overboard. Rod holders abound, and the comfy mezzanine seating has ample tackle storage and rigging space revealed with the seatback tilted down. 

Below the console is a spacious lockable cabin with a head compartment and shower. Access to the helm station is generous, as is the convenient access to ­battery switches on deck.

The 340LS is as cool as the breeze over the bow and hotter than a pinch of cayenne.

High Points

• Dry storage beneath forward lounge seats doubles as fish boxes.
• Rod lockers in the deck stow tuna sticks securely.
• Hardware is yacht-quality, polished, and ­durable with hawse pipes to stop line chafing.

How We Tested

• Engines: Triple Yamaha 300 hp
• Drive/Prop: Outboard/SWS II 22″ x 17″ 3-blade stainless steel
• Gear Ratio: 1.75:1 Fuel Load: 160 gal. Water on Board: 0 gal. Crew Weight: 500 lb.

Pricing and Specs

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Overview

In a crowded field of 40-something center-console fishing boats, the Jupiter 40 stands out as one of the most impressive. It is also the first boat I’ve run with the new Yamaha 450 XTO V-8 outboards. Jupiter’s 40 features a conventional V-hull (meaning no steps) with a 39-foot-11-inch length overall, nearly 12-foot beam, 24 degrees of deadrise at the transom, and a Posi-Stern hull-pad design. Dry weight with engines is 16,000 pounds, yet we achieved a top speed of 57.3 mph while smoothly traversing tightly spaced 2- to 3-foot seas.

Interior and Accessories

Jupiter builds in durability with composite PVC coring (meaning no wood to rot), a fiberglass and foam-filled uni-grid stringer system, and vacuum-infused vinylester construction. Separating the transom bulkhead from the motors is a transom platform that lets you walk from one side of the boat to the other. 

Anglers will love the 60-gallon pressurized transom livewell with a viewing window (and a seating pad and backrest), twin 100-gallon insulated fish boxes under the aft cockpit sole, a 126-gallon forward insulated fish box, and the port-side door that lets you slide aboard a big fish. There was also a 48-gallon cooler/bait freezer under the aft-facing bench abaft the three-across helm seats on our test boat. 

An inviting lounger for two adorns the forward console, and the bow features a pair of lounges with integral backrests. Accessed from the port side, the roomy console interior offers over 6 ½ feet of headroom, a 7-foot-long berth, a mini galley, a hanging locker, and a separate head compartment with a shower, vanity, sink and electric marine toilet.

A curved acrylic windshield complements the hardtop, and the dash features three Garmin multifunction displays—a 24-inch MFD in the middle and 16-inch MFDs on each side. There is also a helm compartment to starboard that lifts open to reveal the Yamaha Helm Master EX joystick. Even in a crowded field of 40-somethings, the Jupiter 40 is hard to ignore. Check one out, and you’ll see why.

How We Tested

• Engines: Triple Yamaha 450 XTOs
• Drive/Prop: Outboard/Yamaha XTO EC 16 ³/₈” x 22″ (outside); 16 ³/₈” x 21″ (center) 3-blade stainless steel
• Gear Ratio: 1.79:1 Fuel Load: 500 gal. Crew Weight: 600 lb.

High Points

• This big, brawny, 40-foot deep-V center-console is built to take on the biggest seas.
• Composite materials (no wood) and resin-infused construction help ensure years of durability.
• Console cabin with a 7-foot-long berth, galley and head provides overnighting comfort.

Low Points

• Full-height acrylic windshield is nice, but we’d like the option of a three-sided glass windshield for more protection from spray-laden winds on the beam. 

Toughest Competitor

Regulator’s 41 (starting at $1,235,995 with quad Yamaha 425 XTOs) is another standout 40-something center-console. Like the Jupiter 40, it has a deluxe console cabin and a deep-V hull. 

Pricing and Specs

Speed, Efficiency, Operation

Jupiter Marine – Palmetto, Florida; 941-729-5000; jupitermarine.com

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Take the cushioned bow, for example. Comfortable backrests and numerous cupholders make it a great spot to hang out and enjoy the sunshine, but flip those seats to discover twin insulated overboard-draining fishboxes with room to stow enough tuna to feed the extended family. Then there’s the large macerated box in the deck, which could swallow up a 200-pound tuna. In the console you’ll find a roomy head with a vanity and freshwater sink, but that console also extends upward so it can accommodate twin 15″ displays. Every inch of the boat is exquisitely finished. Joints are blind, cushions are piped, the exterior is finished in Imron, and most of the hardware is blind-fastened. Pipework is curved and styled to match the boat’s lines, and you won’t find a rough edge or wavy fiberglass anywhere. A mahi-mahi just threw blood across the deck? No problem: Both fresh- and raw-water washdowns come standard.

Other features that will raise your temperature include twin lockable rodboxes in the deck that will hold up to eight rigs, a 45-gallon livewell behind the leaning post that’s rounded and painted in bait-calming blue gel coat, and a well-insulated drinkbox in front of the console.

What about performance? We pounced through Port Everglades Inlet and ran at three-quarter throttle into a 4′ head sea without any rattles, pounding, or excessive spray. The key lies in the Jupiter’s small pad in the stern along with a 24-degree deadrise; the combination helps the boat ride atop the seas. That deep-V bottom rolls a bit when drifting in a beam sea, a trait common to this hull design. Of course, real men will take that tradeoff, especially when they know that in the Jupiter 29 they’ll look and live like the hardcore angler they truly are.

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