(nautical, aeronautics) A relatively flat surface located well forward of a vehicle's center of gravity used for stability and, when movable, used for steering and attitude control; common on submarines, also used on surface ships and aircraft.

plural of foreplane

A plan, device, or strategy created in advance.

(transitive, intransitive) To devise beforehand.

plural of foreplan

present participle of foreplan

simple past tense and past participle of foreplan