GORI 2-Blade Propeller
Suitable for sailing vessels fitted with engines up to 50HP.
The geared blade design ensures that both blades open and close together. This gives less vibration ahead and astern. Under sail, the blades close simultaneously removing the need for banding the blades together or worrying about one falling open causing an increase in drag.
The 2-blade propeller is available in diameters from 11.5” ~ 18” for shaft and saildrive installations. They are made for both LH and RH rotation installations.
Ahead: GORI efficiency is better than most 2 ~ 3 blade feathering and folding propellers
Astern: GORI has an efficiency equal to or better than most 2 ~ blade fixed, feathering & folding propellers
Sailing: Extremely low drag
Calculate Prop Size
Please read these instructions carefully before installing your new GORI propeller
Download the 2 Blade Saildrive Installation Instructions PDF
Download the 2 Blade Standard Shaft Installation Instructions PDF
2-Blade Standard Shaft
| Diameter | Pitch Range | Rotation | Max Shaft Dia. |
|---|---|---|---|
| 11.5 | 8 + 9.5 | RH ~ LH | 1.125 ~ 30mm |
| 12.5 | 8 | RH | 1.125 ~ 30mm |
| 13 | 9 | RH ~ LH | 1.125 ~ 30mm |
| 14 | 9.5 | RH ~ LH | 1.125 ~ 30mm |
| 15 | 10 + 12 | RH ~ LH | 1.125 ~ 30mm |
| 16.5 | 11 + 13 | RH ~ LH | 1.375 ~ 35mm |
| 18 | 13 + 15 | RH | 1.375 ~ 35mm |
2-Blade Saildrive
| Diameter | Pitch Range | Rotation | SD Unit |
|---|---|---|---|
| 11.5 | 8 | RH | DV8 / MB2A |
| 11.5 | 9.5 | RH | DV10 |
| 12.5 | 8 | RH | DV10 |
| 12.5 | 8 | RH | Bukh ~ Volvo ~ Yanmar |
| 13 | 9 | LH | Bukh ~ Volvo ~ Yanmar |
| 14 | 9.5 | LH | Bukh ~ Volvo ~ Yanmar |
| 15 | 10 + 11 + 12 | LH | Bukh ~ Volvo ~ Yanmar |
| 16.5 | 11 + 13 | LH | Bukh ~ Volvo ~ Yanmar |
| 18 | 11 + 12 + 14 | LH | Bukh ~ Volvo ~ Yanmar |
Propeller and Shaft Clearance Dimensions
A. Forward edge of propeller hub (start of taper) to aft edge of cutlass bearing
B. Shaft Diameter
C. Distance from shaft centerline to hull at forward edge of hub
D. Distance from shaft centerline to hull at end of shaft thread
E. Distance from rudder/skeg to end of shaft
F. Distance from rudder to start of taper/forward edge of hub
GORI 2-Blade Measurement Table
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