Abstract: An evaporable foam pattern for use in casting a metal part, such as an engine block. The pattern includes a first evapoable foam section having an outer peripheral rim and an internal wall which is spaced from the rim. The pattern also includes a second pattern section having a rim disposed in abutting engagement with the rim of the first section and having an internal wall spaced from the rim and disposed in abutting engagement with the internal wall of the first section. A third pattern section is disposed outwardly of said second section and has a rim disposed in abutting engagement with the rim of the second section. A layer of adhesive or glue is disposed between the abutting rims and between the abutting internal walls.

Abstract: A marine drive has a high aspect ratio, counterbalanced vane on the propulsion unit for generating hydrodynamic torque when rotated. Control cables fastened to a bar on the vane post extend to the rear end of a lever mounted on the steering arm of the marine drive. The forward end of the lever receives the control rod of the boat steering mechanism. Movement of the control rod moves the lever, pulling one or the other control cable and rotating the vane. The lever is so mounted on the steering arm that movements of the control rod are magnified in operating the control cables. Vane rotation may be used to counteract propeller torque components causing course deviations to the boat and to provide torque for turning the marine drive.