Discover the Seadelta SD 600 Combining 45-Knot Speed With Comfort
The Seadelta SD 600 was among the Greek boatbuilder’s first RIBs and has become one of its bestsellers, according to the owner.
Designed to offer the comfort and handling of a larger boat, this 6-metre RIB combines performance with practicality.
Its specially developed variable-deadrise hull delivers a smooth, controlled ride, even in challenging sea conditions.
Engine options range from 130 to 200 hp, although the manufacturer considers 150 to 175 hp an excellent balance between performance and fuel efficiency.
Powered by a Honda 150 hp VTEC outboard (see specs below), the Seadelta SD 600 reportedly reaches 45 knots, with average fuel consumption of approximately 1 to 1.1 litres per nautical mile.
The spacious layout includes a protective console, generous storage, comfortable seating and a practical bow arrangement.
Attention to construction quality and detail makes this Greek RIB suitable for family cruising and professional use.
The Editor’s View
The Greek authorities officially list www.seadelta.gr as Seadelta’s website in their boatbuilders’ register, with the entry dating back to 2022. However, the website is not active, so I have been unable to verify and publish the official specifications at this time.
This video was published on the Boat & Fishing Magazine YouTube channel.
Proud to share that Honda Marine is a Friend of RIBs ONLY.
Related reading: What Is a Rigid Inflatable Boat? · Why Do RIBs Have Inflatable Tubes? · RIB Buying Guide · Buying a Used Rigid Inflatable Boat? Free Download!
Specs
| Model | Honda BF150 |
|---|---|
| Engine type | 4-stroke DOHC, 4-cylinder, 16 valves |
| Displacement | 2,354 cc / 144 cu in |
| Bore × stroke | 87 × 99 mm / 3.4 × 3.9 in |
| Full throttle RPM range | 5,000–6,000 rpm |
| Rated power | 150 hp at 5,500 rpm |
| Cooling system | Water-cooled |
| Fuel delivery | Programmed fuel injection |
| Ignition system | Microcomputer programmed |
| Starting system | Electric |
| Exhaust | Through hub |
| Lubrication | Wet sump |
| Trim range | -4° to +16° |
| Tilt range | 68° |
| Minimum octane rating | 86 |
| Gear ratio | 2.14:1 |
| Gear shift | F-N-R |
| Alternator output | 55 A |
| Battery charging power | 40 A |
| Propeller | Optional |
| Power tilt | Not specified |
| Power trim and tilt | Standard |
| Gas-assisted tilt | Not specified |
| Oil pressure alert | Standard |
| Temperature alert | Standard |
| Rev limiter | Standard |
| Speedometer pickup | Standard |
| Troll control | Standard |
| Trim support (iST) | Standard |
| Cruise control (iST) | Standard |
| Automatic tilt (iST) | Standard |
| Recreational warranty | 5 years |
| Commercial / rental warranty | 2 years |
| Optional extended warranty | Up to 36 months |
| Overall width | 618 mm / 24 in |
| Transom height (L) | 508 mm / 20 in |
| Transom height (X) | 635 mm / 25 in |
| Dry weight (L, mechanical) | 218 kg / 481 lb |
| Dry weight (X, mechanical) | 221 kg / 487 lb |
| Dry weight (L, iST) | 221 kg / 487 lb |
| Dry weight (X, iST) | 224 kg / 494 lb |
| CARB 2025 rating | 3 stars |
Karel, RIB Advocate
Karel Overlaet is owner, founder, and editor-in-chief of RIBsONLY.com, Home of the Rigid Inflatable Boat. A passionate RIB owner himself, he curates the web’s largest collection of RIB news and videos. What started as a passion project has grown into a knowledge hub with lots of news and 50+ in-depth guides for beginners and experts alike. He also created RIBManufacturerList, a unique global directory of all active RIB brands.
