P = 1100 kW, n1 = 1500 rpm
Rainbowing:
P = 1040 kW, n1 = 1500 rpm
i = 4.3 : 1, n2 = 348 rpm
Hopper dredging:
P = 590 kW, n1 = 1500 rpm
i = 6 : 1, n2 = 247 rpm
The gearbox as originally mounted did not meet the strength calculations normally used for a dredge pump drive.
Since this gearbox had been repaired several times by the customer, they wanted a new gearbox with higher reliability.
Boone made a thorough calculation and new design based on the existing dimensions. Therefore, the new gearbox could be mounted in the dredge pump drive train without major changes.