Test Result Highlights
- Top speed for the Bertram 31 (1981) - Yanmar Repower (Not Prod) is 37.4 mph (60.2 kph), burning 29.4 gallons per hour (gph) or 111.28 liters per hour (lph).
- Best cruise for the Bertram 31 (1981) - Yanmar Repower (Not Prod) is 20.1 mph (32.3 kph), and the boat gets 2.01 miles per gallon (mpg) or 0.85 kilometers per liter (kpl), giving the boat a cruising range of 397 miles (638.91 kilometers).
- Tested power is 2 x 315-hp Yanmar 6LPA-STP2 Diesel.
Standard and Optional Features
Full Warranty Information on this brand coming soon!