Sabreline 36 aft cabin real-world performance

[TJ Sprocket]

Lifelong sailor, racer, and cruiser looking to make the jump to power with wife, 2 kids, and boat dog. Been exploring the upper Chesapeake Bay for decades and looking forward to getting further afield with some more speed at our disposal. Flybridge is a must. Looked at many options but keep coming back to Sabre/EastBay and most recently was surprised to find the Sabreline 36 aft cabin surprisingly accommodating and quite nimble (on paper). The specs from Sabre for the 36 with Cat 3116s are as follows:
1600 rpm / 10.0 knots / 1.6 NMPG / 426 miles
2400 rpm / 20.6 knots / 1.4 NMPG / 384 miles
2884 rpm / 26.5 knots / 1.1 NMPG / 298 miles
These seem to be quite amazing numbers, achieving relatively high speeds at double the ~0.5 NMPG mileage seen on most twin engine vessels above displacement speed (the Sabreline 43 and 47 included).
My question for the group then is what speeds and mileage have owners actually seen in real world conditions?

[Boydski]

Originally Posted by TJ Sprocket

1600 rpm / 10.0 knots / 1.6 NMPG / 426 miles
2400 rpm / 20.6 knots / 1.4 NMPG / 384 miles
2884 rpm / 26.5 knots / 1.1 NMPG / 298 miles
These seem to be quite amazing numbers,

Quite amazing numbers indeed and I think someone did their math incorrectly. If you look up the fuel burn rate for a Cat 3116, it is 11.3 GPH (per engine) at 2400 RPM. For twin engines that would be 22.6 GPH, divide that by 20.6 knots and you get 0.9 NMPG, which is much more typical.

I have an Eastbay 39 (Cummins) which typically gets less than 1 NMPG at cruising speeds (16 - 20 knots).

Good Luck with your boat search.

[TJ Sprocket]

The Sabre uses the 300 HP 3116 so based on those numbers the boat data would look more like:
2800 rpm / 26.5 knots / 0.8 NMPG
2400 rpm / 20.6 knots / 1.1 NMPG
1600 rpm / 10.0 knots / 1.6 NMPG

Still pretty good, and still about half the fuel consumption of the 43 or 47. The question then is, does the boat really get to 20.6 knots at 2400 rpm? I anyone out there has owned or cruised one, I'd love to hear from you.

Thanks, Nick