aircraft lift class

Deductions

• aircraft lift class is for example aerostat ⇐ (aerostat is a aircraft lift class), (is a is inverse of is for example)
• aircraft lift class is for example aerodyne ⇐ (aerodyne is a aircraft lift class), (is a is inverse of is for example)
• aircraft lift class is for example fixed-wing aircraft ⇐ (fixed-wing aircraft is a aircraft lift class), (is a is inverse of is for example)