For service classification definitions and important notes refer to the Twin Disc Marine Product Guide or contact Twin Disc directly.
Reduction Ratios | Pleasure Craft | Light Duty | Intermediate Duty | Medium Duty | Continuous Duty |
---|---|---|---|---|---|
:1 | @ 2300 RPM | @ 2300 RPM | @ 2100 RPM | @ 1800 RPM | @ 1800 RPM |
1.05, 1.23, 1.52, 1.80, 1.98 |
673 kW (902 hp) |
629 kW (843 hp) |
466 kW (625 hp) |
357 kW (479 hp) |
347 kW (465 hp) |
2.57 |
649 kW (870 hp) |
607 kW (814 hp) |
400 kW (536 hp) |
338 kW (453 hp) |
321 kW (430 hp) |
* Ratings shown for use with standard right hand rotation engines. The maximum allowable rated engine speed is 3000 rpm.
C | 413 mm (16.26”) |
S | 146 mm (5.75”) |
F | 62 mm (2.43”) |
F1 | 489 mm (19.26”) |
L | 292 mm (11.50”) |
R | 191 mm (7.50”) |
A | 14° |
Weight | 269 kg * |
* dry weight, including SAE #1 housing and SAE 355 flexible coupling
Specifications subject to change without prior notice in the interest of continual product improvement. Contact your local Twin Disc representative for engineering specifications, Survey Society Approvals and Classifications.