Which are the classes of aircraft under airman certification?

• A. Single-engine land and sea, Multiengine land and sea
• B. Jet, Turboprop, Piston, Electric
• C. Fixed-wing, Rotary-wing, Seaplane, Balloon
• D. Light, Standard, Heavy, Ultra-light

Answer: (A)

In airman certification, the class for airplanes is defined by how many engines and whether the aircraft operates on land or water. The four recognized classes are single-engine land, single-engine sea, multiengine land, and multiengine sea. This structure reflects the specific combinations pilots must be certified to operate within the airplane category.

Why this fits best: it directly matches the FAA’s way of labeling airplane ratings—engine count (single vs multiengine) plus the operating surface (land vs sea). The other options point to engine types, broad categories, or weight designations, none of which are the class designations used for airplane certification.