High power, efficient drive units for maximum power with minimum consumption. Ram drives allow the Power Steer mode on the Pilot to be used in cases of manual steering failure Fully Integrated (T0, T1 and T2 units) hydraulic system, no external hoses, reservoirs etc. Always remember to use the fully laden displacement of your boat when selecting a pilot. Typically a yacht fully provisioned with the water and fuel tanks full can be as much as 20% above the designed displacement. If your boat falls between two pilot types, choose the larger pilot type - an under rated pilot may not be able to perform adequately when you need it most. If in doubt, please check with an authorised Simrad Dealer. If you are using a Ram, Rotary drive or existing drive unit from another manufacturer, these will, in most cases, be compatible with Simrad units. To check this however, please call your local Simrad Dealer or call us directly.