Sunrise 9.9S Fuel Consumption by the Sea Team
Owning a Rigid Inflatable Boat (RIB) means enjoying performance, stability, and versatility.
However, fuel consumption is crucial to getting the most from every outing (more consumption by RIBs)
Efficient cruising starts with knowing your boat’s sweet spot.
For most RIBs, achieving optimal fuel economy requires maintaining a steady cruising speed as is the case with this Sunrise 9.9S.
This speed is typically between 20–30 knots depending on engine size and hull design.
Trim adjustment is essential. Properly trimmed engines reduce drag, letting the hull glide more efficiently and lowering fuel use.
Many modern outboards feature automatic trim assist—use it or learn to trim manually for best results.
Keep the weight balanced and avoid overloading by limiting passengers to half the maximum allowed (more articles about safety).
Even small changes in load distribution can impact performance and increase consumption.
Clean your hull regularly and service your engines as recommended—dirty hulls and neglected motors work harder and burn more fuel.
This video was published on the The Sea Team YouTube channel. Specs of this Sunrise 9.9S below as well.
By the way, this brand, Mirimare, today ranks 272nd on RIBsONLY.com!
Detailed Consumption per RPM
| RPM | Speed (knots) | Fuel Consumption (l / h) | Notes |
| 1000 | 6.3 | 12.1 | Trim fully down; Trim assist off |
| 1900 | 9.1 | 26.0 | Stable, efficient pre-planing |
| 2000 | Hull begins lifting (high torque) | ||
| 2400 | 15.1 | 35.2 | Planing starts |
| 2900 | Trim adjusted to reduce drag | ||
| 3000 | 23.7 | 47.2 | ~1 l / nm per engine; efficient cruise |
| 3500 | Smooth response; VVT active | ||
| 3900 | 32.7 | 84.3 | Smooth ride through waves |
| 4200 | 35.2 | 95.0 | Trim raised; less wetted surface |
| 4500 | 37.0 | Preparing for top-speed test | |
| 5700 | 47.0 | Acceleration phase | |
| 5900 | 49.0 | Near top speed | |
| 6000 | 50.2 | 200.0 | Peak speed; 20% hull in water |
| 3100 | 25.0 | 46.0 | Return cruise; steady & efficient |
| 2690* | 26.9 | Steer-by-wire test; tight turns (approximate) |
Specs
| Overall length | 10.4 m (34.1 ft) |
| Hull length (homol.) | 9.95 m (32.4 ft) |
| Overall width | 3.5 m (11.4 ft) |
| Internal Width | 2.07 m (6.5 ft) |
| Tubular diameter | 700 / 620 mm (27.5 / 24.4 inch) |
| Compartments | 6 |
| Installable power | 1 × 300/350 hp / 2 × 150/300 hp |
| Seating capacity | 16 |
| Stem motor | XXL / XL |
| Number of sun beds | 2 |
| Design category | B |
| Project | Cabes Yacht |
| Unloaded and dry boat weight | 2.350 kg |