The ULTIMA 77 is the boat in Sunreef's range I most want to see in person.
The Specification
Length: 23.5 m (77 ft). Beam: 8.2 m (27 ft). Guests: up to 10. Engines: Volvo Penta D11 with IPS 950 pods.
On a seventy-seven-foot boat in a range whose whole premise is shallow-water access, tankage and draft put more weight on the shipyard visit than a brochure ever would.
Who It's For
The concept is genuinely interesting. Eight point two metres of beam on twenty-three and a half metres of hull is a sleek proportion for a catamaran — this is not a wide cruising platform, it is a fast, narrow one that will take an ordinary berth.
IPS 950 is a substantial pod package, the largest in the ULTIMA range below the 88. And as on the 66, Sunreef offers a hydrofoil option and high-performance hybrid propulsion.
Buy it if you want ten guests on a performance catamaran that berths conventionally, and you are prepared to specify tankage and draft with the shipyard directly.
Against the 80 Sunreef Power
These two are close in length — 23.5 m against 23.8 m — and completely different boats.
The 80 Sunreef Power is 12.00 m wide, with a full-beam cockpit, a flybridge and a published 1.7 m draft. The ULTIMA 77 is 8.2 m wide, nearly four metres narrower. That is the difference between needing a specialist berth and taking an ordinary one, and between a big-volume cruising platform and a sleek performance one.
Choose on marina access versus deck area. Both are valid answers; they are just different questions.
Design and Layout
Ten guests inside 8.2 m of beam, on a 23.5 m hull. The proportions favour length over width, which is what preserves the berth footprint.
Standard range equipment includes folding bulwark platforms that extend the aft deck at anchor, custom sea-stairs and stowage designed for water toys, with ultralight flexible solar panels across the surfaces.
Sunreef publishes a guest count of up to 10; the cabin and head breakdown is drawn per owner. Every ULTIMA is built to order.
Settle These at Contract
Get fuel capacity, water capacity, draft, displacement and performance in writing before you sign a build contract, and record observed speed and consumption at your intended rpm at sea trial. If a broker or a listing hands you a precise Sunreef figure, ask which document it came from.
Where to Start
Do not sign anything on this boat without a written specification covering tankage and draft. Sunreef will provide it if you ask.
Step up to the ULTIMA 88 for more length, a bigger pod package and a published living-space figure. Step down to the 66 if you want 1.2 m of published draft and separate crew accommodation.