See Full Captain's Report

Boat Test Videos
Text Size: AAA

The Sea Ray L550 Fly is a luxurious three stateroom, two head yacht powered by twin 850-hp CAT C12.9 inline 6s. Top speed during our tests was 30.3 knots. Best cruise was 2100 rpm where she had a range of 208 nautical miles. Fuel capacity is 580 gallons (568 L). Folding stairs rise automatically out of the hydraulic swim platform as it lowers into the water. She comes fully equipped right down to glassware and china with the Sea Ray logo.

Key Features

  • 12V Bluetooth stereo with 4 speakers and subwoofer
  • Fiberglass hardtop with electric opening canvas skylight
  • Seating with storage
  • Single helm seat with armrests, pedestal with slide, swivel and vertical adjustment
  • Sun pad forward of helm
  • Wet bar with sink, faucet, solid-surface countertop, stainless steel Handrail and trash receptacle
  • Forward stateroom with Queen-Size with Innerspring Mattress, Pillows, Sheets, Coordinated Spreads & Storage
Length Overall 56' 3''
17.14 m
Beam 15' 7''
4.75 m
Dry Weight 63,755 lbs.
28,918 kg
Tested Weight 69,595 lbs.
31,567 kg
Draft 54''
137 cm
- Draft Up N/A
- Draft Down N/A
- Air Draft N/A
Deadrise/Transom 17-deg.
Max Headroom N/A
Bridge Clearance N/A
Weight Capacity N/A
Person Capacity N/A
Fuel Capacity 580 gal.
2195 L
Water Capacity 150 gal.
568 L
Length on Trailer N/A
Height on Trailer N/A
Trailer Weight N/A
Total Weight
(Trailer, Boat, & Engine)

Prices, features, designs, and equipment are subject to change. Please see your local dealer or visit the builder's website for the latest information available on this boat model.

Std. Power 2 x 850-hp Caterpillar 850 C12.9L 4-stroke diesels
Tested Power 2 x 850-hp CAT C12.9 inline 6
Opt. Power Not Available
Sea Ray L550 Fly
The Sea Ray L550 Fly packs the luxury found in the larger models in Sea Ray’s L Series into an easier to handle 56’3” (17.15 m) boat that sleeps six.

Mission Statement

Sea Ray’s L Series is the manufacturer’s most luxurious line and the L550 Fly is designed to show what the builder is capable of. The L550 Fly has top-of-the line materials from upholstery to countertops and cabinetry. She also has a practical side with the galley, salon, and helm on the same level, creating an inviting environment for entertaining.

Distinguishing Features

  • The Right Angles. On the flybridge lounges, Sea Ray designers used new technology to develop more comfortable angles and padding for the lounge backrests.

  • Bow Seating Area. Other boats in this size range and class have seats in the bow, but the L550 Fly takes it to another level.

  • Digital Switching with Custom Sea Ray Interface and Tablet Control. Stay in charge of the boat from anywhere.

  • Bow and Stern Thrusters. Part of standard equipment list.

  • Hydraulic Swim Platform. Enhances the boat’s versatility.

  • Smart Galley Position. Makes it easy to serve the cockpit and salon.

Features Inspection

Flying Bridge

Stairs on the port side of the cockpit lead up to the L550’s flying bridge deck. This represents one of the many gatghering areas of the L550 and it has several key elements. It begins with a J-shaped settee to starboard and a table with leafs that open onto stainless-steel supports. Sea Ray engineers used new technology to design the padding for the backrests and paid close attention to the angle of the backrests for all the flybridge lounges to make them more comfortable.

The backrest at the front of this lounge converts to make the seat adjacent to the helm forward facing. Ahead of the helm, a large lounge is a great place to stretch out and soak up some rays abaft the acrylic windshield. It has convertible pads that allow the lounge to become a chaise, complete with elevated leg supports.

Sea Ray L550 Fly bridge plan
The flying bridge has spacious seating with plenty of capacity.

To keep passengers entertained, the flybridge entertainment center comes standard with a grill (many competitors charge for the grill), and a stainless-steel drawer-style refrigerator. The countertop has space for serving the food and there’s a sink for quick cleanups.

Sea Ray L550 Fly rendering
The flybridge’s design creates an inviting social environment.

Total Control. Forward to port, the flybridge helm has a single captain’s chair. The dash is fully equipped with a Caterpillar 7” (17.78 cm) color display for the motors, digital switching with a custom Sea Ray interface and tablet control and Raymarine touchscreen displays that control all on board functions. The steering wheel is on a tilt helm and the shifts and throttles are electronic to give the captain more precise control. Redundant controls for the bow and stern thrusters and windlass are also on the upper station.

Sea Ray L550 Fly windscreen
The flybridge windscreen has an aggressive venturi design to deflect wind and spray.

The L550 Fly comes standard with a hardtop that has a power sunroof. Our test boat had an extendable awning at the aft end of the hardtop that brought the shade further back into the aft lounge seating. This can be swapped out for a full enclosure that includes air conditioning and heat.


From the flybridge we could see the L550 Fly’s clever and inviting bow seating area. There’s a forward-facing lounge plus V-shaped aft-facing cushions that can seat five comfortably around the table. In a clever design, the backrests for the aft-facing seats fold into what would normally be the storage areas beneath the hinged bottom cushions. This provides dedicated and protected storage for the backrests. The seating also has a remote for the stereo plus USB plug-ins. An optional bow sunshade that is erected on a stainless steel frame is available and stores under the forward facing seats.

Sea Ray L550 Fly bow seats
The bow seating area has space for five or six people to hang out comfortably.
Sea Ray L550 Fly folding bow seat
The backrests for the aft facing bow lounges fold into the seat base, a smart idea.

Private Beach. Passageways to the stern are 1’5” (43.18 cm) wide at hip level and 10” (25.4 cm) wide on deck have 2’8” (81.28 cm) high stainless rails. With luxury being the operative word (as is the case with all the “L” series yachts) the L550 Fly’s swim platform is finished in teak and the aft 4’6” (1.37 m) extension lowers into the water to make it easier to load a tender/PWC or to create a beach area for swimming and hanging out while at anchor. Stairs are flush to the deck to port and reveal when the platform is lowered. When swimming, a reboarding ladder is concealed under a deck hatch to starboard and a grab handle is molded into the closed hatch to aid in reboarding.

A large trunk-style locker on the boat’s transom has racks for fenders and docklines making it easy to keep the contents not only secured but organized. The opening is ringed in stainless steel and the hatch opens on twin stainless-steel gas struts.

Sea Ray L550 Fly lowering platform
This gap shows the aft 4’6” (1.37 m) of the swim platform being lowered into the water.
Sea Ray L550 Fly ladder locker
The reboarding ladder is housed in a locker on the starboard side of the swim platform.
Sea Ray L550 Fly trunk locker
The L550 Fly’s trunk locker on the stern has dedicated racks for a wide variety of accessories.


Three portside steps from the swim platform lead up to the L550 Fly’s cockpit. The passageway closes with a gate that has a stainless-steel rail and acrylic insert. The cockpit has an L-shaped lounge wrapping around a triangular table so passengers can enjoy the outdoors on a nice day. The table collapses for easier entry and egress to the seating. Forward in the base of the flybridge stairs, there’s a stainless steel refrigerator drawer and a storage locker above. Gates to both sides open to allow boarding from a fixed pier when the swim platform boarding becomes inappropriate.

Sea Ray L550 Fly cockpit steps
Three steps provide convenient passage to the cockpit and notice the clean fixtures for the shorepower cord.
Sea Ray L550 Fly lounge
The backrests for the cockpit lounge are angled for maximum comfort.
Sea Ray L550 Fly cockpit refrigerator
The cockpit refrigerator keeps cold drinks in reach.
Sea Ray L550 Fly salon layout
With the cockpit, galley and salon on the same level, the L550 Fly has plenty of space for entertaining.

Main Deck Interior

A three-section sliding Opacmare stainless-steel framed door opens completely to create open passage to L550 Fly’s interior deck. Following a current popular design trend, Sea Ray put the galley, salon, and helm on the same level, which gives the area a large, spacious feel. This is further enhanced by the 6’5” (1.96 m) of overhead clearance.


Aft to port, the galley is located squarely between the forward salon and aft cockpit, ensuring that the chef remains at the social hub of the yacht. It has a big Silestone Natural Quartz Surface countertop with a recessed sink that includes a single-lever faucet and a wood cutting board cover. There is a two-burner induction stove and under-counter refrigerator and freezer drawers available in any configuration of the two desired. The microwave oven is hidden in an overhead cabinet that is finished in the same walnut that we will see repeated throughout the boat. Below are two clever storage solutions, one being next to the refrigerated drawers for holding narrow items like cleaning supplies or bottles. Under the sink is a sliding rack holding the trash containers that releases with the touch of a foot. The sole is finished in a wide-plank wood flooring. For morning Java, there is a Keurig coffeemaker. Additional storage is behind the counters and overhead behind acrylic laminated doors.

There are two swiveling seats at the forward side of the counter and Sea Ray cleverly left the area at the foot of the stools open allowing a clear sightline to the salon deck. This further adds to the open feeling of the entire main deck rather than allowing the bulkhead to create more of a division between the galley and salon. To starboard, we found the optional wine chiller and storage drawers for the silverware, glasses and plates.

Sea Ray L550 Fly salon door
The Opacmare stainless-steel framed door opens fully to create flow from the cockpit to the salon deck.
Sea Ray L550 Fly galley
The galley on our test boat is finished in Walnut wood and Silestone Natural Quartz countertops.
Sea Ray L550 Fly cutting board
The sink cover comes in handy when it’s time to cut lemons and limes.
Sea Ray L550 Fly microwave
When not in use, the microwave oven is hidden in this cabinet.
Sea Ray L550 Fly bar stools
Two stools on the leading edge of the galley are a great place to enjoy a cup of coffee in the morning.
Sea Ray L550 Fly cups and glasses
Three drawers in the starboard cabinets have dedicated space for cups and glasses, plates, and silverware.


Moving forward, the L550 Fly’s salon has a Toscana upholstered sofa-sized lounge to port and a shorter one to starboard directly abaft the lower helm station. Two ultra suede ottomans have storage inside and reversible tops to convert to tray tables. A fixed pedestal table is an optional alternative, but stick with the ottomans if the convertible sofa is selected that converts the seating into a queen sized berth. The 50” (1.27 m) flatscreen TV rises out of the countertop directly abaft the starboard-side salon lounge and there’s a Bose SoundTouch entertainment system. Sea Ray L550 Fly salon lounge
In lieu of a big dinette table, Sea Ray puts small tables in the bottom of the ottomans for casual dining.
Sea Ray L550 Fly salon tv
The 50” (1.27 m) TV in the Sea Ray L550 Fly’s salon retracts into the countertop when not in use.
Sea Ray L550 Fly seamless grains
Notice the matched wood grains on this cabinet face. These are indicative of the small details that Sea Ray paid attention to throughout the boat.
Sea Ray L550 Fly overhead valance
The valance in the overhead in the salon hides air conditioning duct work so that the cooling air is distributed evenly.

Complete Control. The L550 Fly’s lower helm has twin individual captain’s chairs that have armrests, reclining backrests, fold-down footrests and adjustable height. They also move fore and aft. The boat has electronic controls, bow and stern thrusters and a Caterpillar 7” (17.78 cm) color display for the engines. Twin Raymarine screens have digital switching with a custom Sea Ray interface and tablet control. A captain can touch an on board system icon on the screen and control a given function throughout the boat. For example, tapping the air conditioning button brings up the various cabins on the L550 Fly. He can touch the icon for the V-berth and adjust the temperature without ever leaving the helm. And Sea Ray engineered this so that every desired function can be accessed and activated with no more than two button presses.

Sea Ray L550 Fly home screen
Just by touching an icon on the screen, the captain can control virtually any on board operation.
Sea Ray L550 Fly switching modules
For easy access, all of the switching modules are in the base of the helm.

Below Decks

Sea Ray L550 Fly cabin plan
Below decks, the L550 Fly sleeps six but has only two heads.

Master Stateroom. The centrally positioned stairs lead to the L550 Fly’s cabin level. The master stateroom is aft and it has the queen berth angled from the aft starboard corner into the center of the stateroom. This saves space, but the cabin and a companion could feel more of the vessel’s movement than if the berth was on the centerline. To port, there’s an L-shaped settee and the hanging locker is to starboard behind a glass door. Just above is the 40” (1.02 m) flatscreen TV. There’s additional space in drawers in the base of the berth. Move the pillows and there’s a hidden storage compartment that also has an optional safe. The boat comes standard with a washer/dryer combo unit and separate units are an available option.

Sea Ray L550 Fly master stateroom
Outboard windows in the hullside let in natual light.
Sea Ray L550 Fly master berth
The edges of the master berth are beveled to make it more comfortable to sit on the side.

Guest Quarters. Working aft, the guest cabin to starboard has two individual berths that can slide together. These quarters have a hanging locker. In the bow, the VIP stateroom has a berth on the boat’s centerline with dual hanging lockers aft.

The Heads. The master head has private entry via a sliding pocket door to its head at the entry to the quarters. The countertop is the same Silestone Quartz as in the galley and there’s a vessel sink, a walk-in shower with an acrylic door and teak decking and the cabinets are lit on the sides. The day head is similarly equipped, albeit with a smaller shower stall. There is private entry to the day head from the bow VIP stateroom.


The Engines. The Sea Ray L550 Fly was powered by twin 850-hp CAT C12.9 inline-6 diesel inboards mated to transmissions with 1.964:1 gear ratios turning Veem 30” x 33.5” (76.2 cm x 85.09 cm) five-bladed propellers. Estimated weight of the test boat with two people, full fuel, and test equipment aboard was 69,595 lbs. (31,567 kg). We recorded a top speed at 34.9 (30.3 knots) mph at 2380 rpm. Best cruise came at 1700 rpm and 18.7 (16.3 knots) mph. The boat burned 39.7 gph (150.28 lph), which translated to .5 mpg, giving the L550 Fly a range of 246 statute miles with 10% of her 580-gallon (2,195 L) fuel capacity in reserve. In acceleration tests, she ran to 21 mph in 30 seconds.

Sea Ray L550 Fly running
The L550 fly’s bottom design has three lifting strakes per side and reversed chines.

The Engine Compartment. The L550 Fly’s engine compartment has an automatic fire-suppression system and Delta T 24-volt blowers. The engines are equipped with parallel start systems. Twin fuel filters protect each engine. The boat is equipped with an Onan 21.5 kW diesel generator with a sound shield and a dedicated fuel filter. The 240-volt water heater has a capacity of 20 gallons (76 L).

Sea Ray L550 Fly engines
The engine room is well laid out for routine maintenance.

Options to Consider

  • Electric Retractable awning on back of flybridge hardtop

  • Teck decking on flybridge

  • Extended hardtop with lighting and polycarbonate canvas enclosures and air conditioning

  • Flybridge icemaker in-lieu of refrigerator

  • Flybridge table

  • Raymarine electronics upgrades

  • Bidet/toilet combination upgrade in master head

  • Crew quarters (replaces lazarette)

  • Desalinator

  • Generator upgrade to 29 kW

  • Cockpit icemaker in-lieu of refrigerator

  • Joystick docking control for inboards

  • Refrigerator for master stateroom

  • Safe in master stateroom

  • Wine cellar

  • Seakeeper Gyroscopic Stabilizer (Requires generator upgrade)

  • table for bow seating area

  • table for cockpit

  • Side by side washer/dryer in lieu of standard combo unit


  • 3 years Bow to Stern

  • 5 years Pro-rated blister coverage, 100% first three years

  • 10 year Limited Structural Hull/Deck

  • 3 year engine/generator warranty

  • Haul out and travel coverage provided


The smallest entry in the L Series, the Sea Ray L550 Fly brings the luxury found in the larger models to a 56’3” (17.15 m) boat that an experienced captain can handle easily, especially with the standard bow and stern thrusters. The bow seating area is a big highlight as is the power swim platform. The single-level design for the galley and salon and the large flybridge make the boat well-suited for entertaining a crowd.

Test Result Highlights

  • Top speed for the Sea Ray L550 Fly (2017-) is 34.9 mph (56.2 kph), burning 80.8 gallons per hour (gph) or 305.83 liters per hour (lph).
  • Best cruise for the Sea Ray L550 Fly (2017-) is 18.7 mph (30.1 kph), and the boat gets 0.5 miles per gallon (mpg) or 0.21 kilometers per liter (kpl), giving the boat a cruising range of 246 miles (395.9 kilometers).
  • Tested power is 2 x 850-hp CAT C12.9 inline 6.

Marine Electronics

Autopilot Standard
Fishfinder Optional
GPS/Chart Standard
Radar Standard
VHF Radio Standard


Air Cond./Heat Standard
Battery Charger/Converter Standard
CD Stereo Standard
Dripless Shaft Seals Standard
Head: Fixed Standard
Shore Power Standard
Trim Tabs Standard
TV/DVD Standard
Water Heater Standard
Windlass Optional


Coffeemaker Standard
Icemaker Standard
Microwave Standard
Refrigerator Standard
Stove Standard

Exterior Features

Carpet: Cockpit Standard
Outlet: 12-Volt Acc Standard
Swim Ladder Standard
Swim Platform Standard
Transom Door Standard
Transom Shower Standard
Wet bar Standard

Boats More Than 30 Feet

Bow Thruster Standard
Freezer Standard
Generator Standard
Oil Change System Optional
Vacuum Standard
Washer/Dryer Standard


Full Warranty Information on this brand coming soon!


Pricing Range: Pricing is available upon request.

Price as Tested: Price is available upon request

Prices, features, designs, and equipment are subject to change. Please see your local dealer or visit the builder's website for the latest information available on this boat model.

Test Results - Change Measurement Unit

RPM MPH Knots GPH MPG NMPG Stat. Mile NM dBa
600 7.0 6.1 2.3 3.0 2.6 1589 1381.5 65
1000 9.6 8.3 9.5 1.0 0.9 527 458.7 74
1500 11.3 9.8 32.7 0.3 0.3 180 156.9 70
1700 18.7 16.3 39.7 0.5 0.4 246 213.8 71
1900 23.6 20.5 52.0 0.5 0.4 237 206.0 74
2100 29.0 25.2 63.2 0.5 0.4 240 208.3 74
2300 33.4 29.0 75.3 0.4 0.4 232 201.3 79
2380 34.9 30.3 80.8 0.4 0.4 225 196.1 81
600 1381.5 2557 11.30 8.71 1.28 65
1000 458.7 848 15.40 35.96 0.43 74
1500 156.9 290 18.20 123.78 0.13 70
1700 213.8 396 30.10 150.28 0.21 71
1900 206.0 381 38.00 196.84 0.21 74
2100 208.3 386 46.70 239.24 0.21 74
2300 201.3 373 53.80 285.04 0.17 79
2380 196.1 362 56.20 305.86 0.17 81

All fuel consumption numbers are the total for all engines in the boat. Speeds are measured with Stalker ProSports radar gun or GPS. Fuel consumption (gallons per hour) measured with Floscan digital fuel-flow meter or by on-board factory-installed diagnostic instruments. Range is based on 90% of published fuel capacity. Sound levels determined using Radio Shack digital decibel meter on A scale. 68 dBA is the level of normal conversation. Time to plane is measured from start of acceleration to formation of rooster tail behind boat.