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 |
1.17, 1.33, 1.53 1.76, 2.03, 2.48 2.92 |
969 kW (1300 hp) |
924 kW (1239 hp) |
720 kW (966 hp) |
600 kW (805 hp) |
600 kW (805 hp) |
3.48 |
800 kW (1073 hp) |
789 kW (1058 hp) |
* Ratings shown for use with standard right hand rotation engines.
The maximum allowable rated engine speed is 2750 rpm (2500 rpm for ratio 1.17:1).
C | 248 mm (9.75”) |
S | 222 mm (8.75”) |
F | 595 mm (23.41”) |
L | 375 mm (14.75”) |
R | 267 mm (10.50”) |
Weight | 580 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.