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Riviera Yachts 4600 Sport Yacht Platinum Edition (2024-)

2 x 600-hp Volvo Penta D8 IPS800



Brief Summary

The Riviera 4600 is a multi-faceted yacht designed and built in Australia. Its blue water heritage shows through as this yacht gobbles up rough seas while running quietly and smoothly.  She is as fine mechanically as any yacht in her class.

Test Results

RPM MPH Knots GPH MPG NMPG SM NM dBa
600 5.1 4.4 1.7 3.1 2.7 1533 1332 65
750 7.1 6.2 2.4 2.9 2.6 1473 1280 65
1000 8.7 7.6 4.4 2 1.7 998 867 62
1250 10.3 9 8.2 1.3 1.1 631 549 65
1500 11.6 10.1 14 0.8 0.7 415 360 66
1750 12.9 11.2 22.5 0.6 0.5 286 249 67
2000 14.7 12.8 32 0.5 0.4 230 200 69
2250 19.6 17.1 39 0.5 0.4 251 218 70
2500 24.7 21.5 47 0.5 0.5 263 228 71
2750 30.4 26.5 54 0.6 0.5 282 245 75
2990 35.1 30.5 63.5 0.6 0.5 276 240 74

Specifications

Length Overall 50' 3"
15.31 m
Beam 15' 5"
4.7 m
Dry Weight 42,329 lbs
19,200 kg
Tested Weight 48,537 lbs
22,016 kg
Draft 4' 3"
1.3 m
Bridge Clearance 15' 6"
4.73 m
Fuel Capacity 555 gal
2,100 L
Water Capacity 164 gal
620 L
Total Weight 48,537 lbs
22,016 kg

Acceleration Times & Conditions

Load Persons + Gear: 600 lbs/272 kg; Fuel: 555 gal diesel = 3,941 lbs/1,791 kg; Water: 80 gal = 667 lbs/303 kg; Total Load: 5,208 lbs/2,366 kg
Climate 84°; 70% humidity; wind 8-14 kts; waves 1-2'

Engine Options

Tested Engine 2 x 600-hp Volvo Penta D8 IPS800
Std. Power 2 x 600-hp Volvo Penta D8 IPS800

Captain's Report Riviera 4600 Sport Yacht Platinum Edition

by Capt. Gregg Clark

The Riviera 4600 underway off Fort Lauderdale in south Florida

The Riviera 4600 underway off Fort Lauderdale in south Florida

Mission

The 50’ 3” (15.31 m) LOA Riviera 4600 Sport Yacht (SY) Platinum Edition is designed to be a multi-purpose yacht serving cruising and entertaining intentions. Her design was inspired by a wish list from experienced Riviera offshore cruisers. She has a fuel capacity of 555 gallons (2,100 L) giving her a 245 nm range at a cruise speed of 26.5 knots and a 549 nm range at a displacement speed of 10.3 knots.   

Performance Review

Test Conditions

Test day brought light-to-moderate conditions with winds from the east between 8 and 14 knots and seas of 1 – 2 feet on the ocean. The test area was just offshore Fort Lauderdale, FL.

Performance Test Results

Once offshore, our first tests were a series of runs focused on getting the speed, fuel burn and noise level (measured in decibels, or dBA) at specific RPM.  

Riviera 4600 SY Platinum RPM and Decibels chart

Acceleration Times & Conditions*

The next tests were the acceleration runs.  Here, 3 tests were conducted and then averaged to get the time from 0 knots to select speeds.  With the Volvo Penta D8 IPS800s creating 600 horsepower each, the 4600 SY Platinum Edition had an acceleration time of 6.9 seconds from 0 knots to 10 knots, 14.2 seconds from 0 knots to 20 knots, 21.0 seconds from 0 to her cruise speed of 26.5 knots and 36.0 seconds from 0 to her top speed of 30.5 knots.

Riviera 4600 SY Platinum acceleration times

*Average over 3 runs
**18.2 knots was the average planing speed, although this was hard to distinguish given her minimal bow drop at plane
***30.5 knots was the average maximum speed

Riviera 4600 SY Platinum time to various speeds chart

Range and Optimal Cruise

The Riviera 4600 has an effective range between 218 nm and 1,332 nm with a 10% fuel reserve.  At a cruise speed of 26.5 knots, she has a range of 245 nm.

Riviera 4600 SY Platinum speed and range chart

Handling

The 4600 SY Platinum Edition handled well helped by the IPS drive system.  She handled well at both low and high speeds.  She ate up the slight to moderate conditions experienced on test day and seemed to chomp at the bit to get into heavier sea conditions.  

The Riviera 4600 during a hard-over, high-speed turn

The Riviera 4600 during a hard-over, high-speed turn

Docking

The Volvo Penta Joystick system makes for easy docking and undocking.  Our test boat was very responsive to joystick inputs…almost two responsive so adjusting to the amount of thrust input required took a little bit of time.  When there was a reverse component in a maneuver, there was a small amount of “squat” given the power of the thrust. 

Captain Gregg preparing to dock the 4600 at Harbor Town Marina in Fort Lauderdale, FL

Captain Gregg preparing to dock the 4600 at Harbor Town Marina in Fort Lauderdale, FL

Highlights

•    Rugged construction designed for blue water cruising
•    Two levels of space
•    Well thought-out and functional design features
•    Best-of-the-best features based on Riviera owner feedback

Exterior

The Riviera 4600 SY at Cruise Speed

The Riviera 4600 SY at Cruise Speed

The Riviera 4600 Sport Yacht Platinum Edition is a sleek looking yacht with lines and visual characteristics showing her intended dual use as an offshore cruising and entertaining vessel.  She combines contrasting white fiberglass work with dark windows, support structures, and gray accents.  Her exterior proportions look natural and of appropriate scale.

The walkway is 20” wide at hip level, 11” between gunwale and the superstructure with a sturdy stainless-steel rail that is 29” high along the entirety of the hull.

The Riviera 4600 SMY walkway space

The Riviera 4600 SY Platinum Edition walkway space

Layout

The 4600 SY Platinum Edition has two levels of space. 

Exterior layout

Exterior

The main level features three distinct seating areas, The large wrap-around aft cockpit bench, a mezzanine just forward, and a single step up from the spacious galley as well as the large sun pad on the bow.

Salon layout

Salon

The accommodations feature three staterooms including a full-beam master with ensuite head, a forward VIP with ensuite head that doubles as a day head, and a double with a high-low bunk to port.  

Accommodations in a 3-stateroom configuration as our test yacht was equipped

Accommodations in a 3-stateroom configuration as our test yacht was equipped

Accommodations with optional 2-stateroom configuration

Accommodations with optional 2-stateroom configuration

Bow

Beginning with the deck forward, there is a 60-pound Ultra stainless-steel anchor.  There is an option for a 77-pound anchor as well.  There is 162 feet of 3/8” galvanized chain rode.  The windlass is by Muir.  There is storage and access to the rode to starboard and a locker with the windlass control, windlass winch handle, and fresh/salt water washdowns to port.

Windlass and anchor rode

Windlass and anchor rode

Port anchor locker – fresh/salt water washdowns, windlass handle and windlass control

Port anchor locker – fresh/salt water washdowns, windlass handle and windlass control

52” deep starboard anchor locker – access to anchor rode and fender/line storage

52” deep starboard anchor locker – access to anchor rode and fender/line storage

Next, there is a 52 SqFt (16 SqM) foredeck sun pad that easily accommodates 3 people. The backs rachet up and down without the aid of any form of gas strut or secondary support rods.

Sun pad

Sun pad

There are shallow bow storage lockers on both port and starboard outboard of the sun pad.  These are ideal for storing lines.

Bow storage lockers

Bow storage lockers

The walkways port and starboard are 20” (51 cm) wide even with the railing and 11” (28 cm) wide on the sole allowing ample room to traverse from the cockpit to the bow while facing fore or aft.

Walkways and bow rail

Walkways and bow rail

Cockpit

The cockpit of the 4600 SY Platinum Edition measures 74.4 SqFt (22.7 SqM) and encompasses seating, a teak and holly table, a grill with wet bar, under counter refrigerator and icemaker, and the access hatch to the engine room. 

Cockpit

Cockpit

Given the main helm is on the port side on Riviera’s, there is an optional docking station with the Volvo Penta joystick on the starboard side of the cockpit.  Our test vessel was equipped with a station to port as well.  

Starboard docking station

Starboard docking station

Port docking station

Port docking station

Port cabinet with sink and grill

Port cabinet with sink and grill

Icemaker (left) and refrigerator (right) under the grill and sink

Icemaker (left) and refrigerator (right) under the grill and sink

The cockpit seating area has 12’ (3.7 M) linear feet of seating, enough for up to 10 people.  This seating area surrounds a high gloss, triangular-shaped teak and holly table that folds in half for easy access to the seating.  There are six drink holders in a polished stainless-steel receptacle that is accessible in either table position.

Cockpit seating area and table

Cockpit seating area and table

Swim Platform

The swim platform measures 13’ 6” (4.1 M) wide at its widest point and extends 62” (1.6 M) abaft the door to the garage.  52” (1.3 m) of the swim platform drops into the water for easy access to water toys or for loading/unloading of a dingy.  There are stainless-steel side rails that are removable and store in the garage.

Three steps lead from the swim platform to the cockpit to starboard or to the walkway to port.  Lift up stainless-steel gates protect both entrances to the swim platform while underway.

Swim Platform

Swim Platform

Garage

There is a lifting door that provides access to a garage.  This is perfect for fender or line storage or for placing water toys in the 9’ long section to port.  Two speakers provide entertainment while using the swim platform.

Garage

Garage

Interior

Salon Deck

The interior salon deck has 3 distinct spaces.  These include: 1) the helm to port, 2) a seating area to starboard and 3) the galley area split between the port and starboard sides aft.  There is a minimum of 6’ 11” (2.1 M) of headroom throughout.

Riviera-4600-Sport-Yacht-Platinum-Edition

Salon deck

Helm

The helm of the 4600 is located on the port side of the flybridge.  While many boats targeting the US market have the helm on the starboard side, I didn’t find the port side location to be an issue at all.  There is great visibility to the safety zone to the starboard side given the large windshield.  The helm is outfitted with two Garmin 12” multi-function displays.

Given the yacht is IPS powered, it comes with the integrated throttle control and joystick system for easy maneuvering.  The throttles are inboard of the helm and the joystick located outboard in easy reach of the left hand.  There is also a Sidepower electric bow thruster.  There are two seats in faux leather and suede.  The suede has an attractive diamond pattern.

Helm Station of the Riviera 4600 Sport Yacht Platinum Edition

Helm station of the 4600 SY Platinum Edition

Riviera-4600-Sport-Yacht-Platinum-Edition

IPS Joystick with windshield wiper controls abaft

Riviera-4600-Sport-Yacht-Platinum-Edition

Ignition switches forward of the joystick

Riviera-4600-Sport-Yacht-Platinum-Edition

Helm and accompanying inboard seats

There is a skylight above the forward part of the salon area that allows for natural light and breezes while at anchor or underway.  There was minimal wind noise with the skylight open while underway.

Riviera 4600 Sport Yacht Platinum Edition

Skylight partially open

Seating Area

To starboard on the salon deck is a seating area for 6 to 8 people that surrounds a high-gloss teak table.  Forward of the seating area is a pop-up, flatscreen TV.  Powered sunshades lower outboard of the seating area.

Riviera 4600 Sport Yacht Platinum Edition

Seating area to starboard in the salon deck

High gloss teak table

High gloss teak table

Pop-up flatscreen TV

Pop-up flatscreen TV

Powered sunshades outboard of the seating area

Powered sunshades outboard of the seating area

Galley

The aft section of the salon deck contains a two-part galley with 6’ 11” (2.1 M) of headroom throughout.  Our test yacht had walnut cabinetry with a high-gloss finish.  There is also the option for light oak or cherry cabinetry.  Any option is available in either high-gloss or satin finishes.

To port is 11 linear feet (3.4 M) of counterspace.  The countertops are Corian with a water-fall effect dropping the Corian all the way to sole.  There is a 2-burner Kenyan convection cooktop with PUPS (Pop-Up Potholder System).  There is a stainless-steel sink and an under-counter convection oven / microwave.  Under the microwave is a pull-out dishwasher drawer.

To starboard is another 3’ 6” (1.1 M) of linear counter space with additional storage and a refrigerator / freezer under the counter.

Wrap-around galley to port.  Note the waterfall design feature of the Corian countertops

Wrap-around galley to port. Note the waterfall design feature of the Corian countertops

Two-burner Kenyan convection cooktop with PUPS (Pop-Up Potholder System)

Two-burner Kenyan convection cooktop with PUPS (Pop-Up Potholder System)

Combination convection oven / microwave

Combination convection oven / microwave

Pull-out dishwasher drawer

Pull-out dishwasher drawer

Additional galley space to starboard

Additional galley space to starboard

Combination refrigerator / freezer

Combination refrigerator / freezer

AC / USB outlets, Dometic air conditioner controller and ergonomic switches

AC / USB outlets, Dometic air conditioner controller and ergonomic switches

Accommodations

Riviera’s 4600 Sport Yacht Platinum Edition comes in two- or three-stateroom configurations.  Our test yacht had the more common three-staterooms.  There is a full beam master amidship, a VIP in the bow, and a double berth stateroom to port.  The master and VIP have ensuite heads with the VIP head also serving as a day head.

Accommodations with standard 3-stateroom configuration

Accommodations with standard 3-stateroom configuration

Accommodations with optional 2-stateroom configuration

Accommodations with optional 2-stateroom configuration

Accommodations Atrium

Down five steps from the salon deck is a 12 SqFt (3.6 SqM) accommodations atrium that serves as the point of entrance to staterooms and the day head.  It also houses a full-sized, stacked washing machine and dryer.

Steps from salon deck to accommodations atrium

Steps from salon deck to accommodations atrium

Accommodations atrium

Accommodations atrium

Full-sized, stacked washer and dryer

Full-sized, stacked washer and dryer

Master

The master suite with ensuite is 111 SqFt (34 SqM) with 6’ 10” of headroom in the main section of the master.  The berth measures 76” L x 66” W with 3’ 7” of headroom above the berth. Our test yacht had wardrobe cabinets along the entire length of the master both port and starboard.  There is an option for a chaise lounge as well.

The ensuite head is 14 SqFt (4 SqM) with 6’ 9” of headroom throughout.  There is a 6.5 SqFt (2 SqM) shower that has 6’ 9” of headroom.

Master berth

Master berth

Wardrobe to port.  Portholes have sensors that alert the CZone system if they are open

Wardrobe to port. Portholes have sensors that alert the CZone system if they are open

Nightstand with induction charger, outlets, USB receptacles and light switches

Nightstand with induction charger, outlets, USB receptacles and light switches

32” Flat screen TV with sound bar

32” Flat screen TV with sound bar

Master ensuite

Master ensuite

Forward VIP

The 87 SqFt (27 SqM) forward VIP stateroom with ensuite has 6’ 8” of headroom throughout.   The island berth measures 76” L x 60” W with headroom over the mattress of 3’ 8”.  Recessed storage areas line the port and starboard hull and there are two hanging lockers each with 4’ 7” of height.

The ensuite head is 18 SqFt (6 SqM) with 6’ 5” of headroom throughout.  There is an 8 SqFt (2 SqM) shower that has 6’ 5” of headroom.

Forward VIP berth

Forward VIP berth

Forward VIP hanging locker

Forward VIP hanging locker

Storage shelf

Storage shelf

Pull down blinds

Pull down blinds

Flatscreen TV with sound bar

Flatscreen TV with sound bar

Dual entrance to VIP ensuite / day head

Dual entrance to VIP ensuite / day head

VIP ensuite / day head

VIP ensuite / day head

Double Berth

The 37 SqFt (11 SqM) double berth has 6’ 7” of headroom throughout.  There is a nightstand inboard the berths. The berths are 81” L x 30” wide with 2’ 8” above both berths.

Over/under double berth

Over/under double berth

Engine Room

The engine room measures 173 SqFt (53 SqM) with 5’ 9” of headroom below the deck stringers and 5’ 10” of headroom in between the stringers.  There is 2’ 1” of clearance above the starboard engine, 8” of clearance above the port engine. and 2’ 6” of space between the engines.

Entrance to the engine room is through a 35” x 39” hatch in the cockpit floor.  The engine room ladder has wide, plastic treads; a nice feature that is easier on the feet than the narrow, steel treads seen on many boats.

Access around the engines and to the outboard systems is acceptable given the size of the yacht. Access to many systems such as the chillers and the Glendinning power cord mechanicals is well thought out.

There is a Kohler 14 kW generator and a Seakeeper 6 gyroscopic stabilizer to keep the boat stable in rolling seas.

Access to the engine room is via a 35” x 39” hatch in the cockpit sole

Access to the engine room is via a 35” x 39” hatch in the cockpit sole

Starboard engine looking outboard

Starboard engine looking outboard

Stainless-steel sight glass to see the level of the 555 US gallon (2,100 L) tank

Stainless-steel sight glass to see the level of the 555 US gallon (2,100 L) tank

Dual Racor filters for each engine

Dual Racor filters for each engine

AC distribution panels with the Dometic Vacuflush pumps for each of the two heads

AC distribution panels with the Dometic Vacuflush pumps for each of the two heads

Dometic chillers

Dometic chillers

Seakeeper 6 gyro stabilizer

Seakeeper 6 gyro stabilizer

Glenndinning power cord system.  Note the easy access to the mechanicals

Glenndinning power cord system. Note the easy access to the mechanicals

Kohler 14 kW generator

Kohler 14 kW generator

DC control and distribution panel

DC control and distribution panel

Sturdy raw water strainer with sight glass

Sturdy raw water strainer with sight glass

Engine mount bolts are clearly marked with torque points to easily determine if any are working loose

Engine mount bolts are clearly marked with torque points to easily determine if any are working loose

Observations

Riviera Yachts builds solid yachts designed to handle the tough ocean conditions that can prevail in Australia and beyond.  But they are far from utilitarian with interior design and fit and finish worthy of superyacht standards.  Many small details are well thought out and executed and the craftmanship is top-notch.

The 4600 Sport Yacht Platinum Edition is just that – a cross between an offshore capable cruiser and an excellent entertainment platform.  It is a blend of purposes rarely executed with the depth and quality of this yacht.  The Platinum edition brings the best of the best of the most sought-after customer features as standard.

The multitude of living and entertaining spaces across her two decks make her an excellent family or family plus friends cruiser.  Features like the Volvo Penta IPS drives with integrated joystick control combined with excellent external access from bow to stern make her easy to run as a couple, or even single-handed.

Any owner / operator who is looking for a yacht that performs well as an offshore capable cruiser and a day cruiser designed for entertainment should have a look at the Riviera 4600 Sports Yacht Platinum Edition.  She is well built, spacious, refined and ready to handle just about anything the ocean can throw at her.

Remember, life is better on a boat!

Captain Gregg
[email protected]