foreplane

As nouns the difference between foreplane and foreplan

is that foreplane is 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 while foreplan is a plan, device, or strategy created in advance.

As a verb foreplan is

to devise beforehand.

Mainplane is a coordinate term of foreplane.

As nouns the difference between foreplane and mainplane

is that foreplane is 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 while mainplane is the wing of an airplane that provides most of the lift.

Tailplane is a coordinate term of foreplane.

As nouns the difference between foreplane and tailplane

is that foreplane is 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 while tailplane is a horizontal airfoil, at the rear of an aircraft, to which the elevator is attached; usually associated with the tailfin.