What is the operational draft with engines vertical (DIW)?

• A. 2 ft 9 in
• B. 1 ft 10 in
• C. 3 ft 0 in
• D. 2 ft 0 in

Answer: (A)

Operational draft with engines vertical means the depth of water needed when the engines are raised to the vertical position, so the drive units are tucked up and don’t extend deeply below the hull. This configuration reduces how much of the hull and gear sits below the waterline, which lowers the draft compared with having the engines down.

For the 29' RBS II, 2 ft 9 in is the draft when the engines are in that vertical, up position. It reflects the shallow-water capability you gain by lifting the engines, giving a smaller depth requirement than the deeper, engine-down condition. The other numbers would correspond to deeper or unrealistic configurations for the engine-up setup, so they aren’t the DIW value.