Honda BF250DUCDA Outboard - 30" Shaft Remote Control Electric Start Power Tilt Counter Rotation Silver. Overview. The Honda BF250DUCDA is a counter-rotating, ultra-long shaft outboard built for offshore boats with extra-tall transoms running twin engines. With a 30" shaft, this model is designed to keep the prop fully submerged in offshore conditions where shorter shafts can ventilate, especially in following seas or heavy chop.. Counter-rotation plays a major role in twin installations by balancing steering forces and improving low-speed maneuverability when docking or backing down. Remote steering, electric start, and power tilt provide full helm integration, while power tilt allows precise trim adjustments as conditions change offshore.. Honda's four-stroke engineering delivers smooth acceleration, quiet cruising, and low vibration-qualities that matter on boats spending long days offshore. This configuration is intended as the counter-rotating partner in a dual-engine offshore setu