C3O1N1V4E1R1T1I1P3L1A1N1E1S1
21 points
CONVERTIPLANES is validvalid
CONVERTIPLANE,
CONVERTIPLANE, an aircraft that can land and take off vertically by temporarily directing its propulsive thrust downwards, also CONVERTAPLANE, CONVERTOPLANE
CONVERTIPLANE,
CONVERTIPLANE, an aircraft that can land and take off vertically by temporarily directing its propulsive thrust downwards, also CONVERTAPLANE, CONVERTOPLANE