(1) Each of the following is a class of aircraft:
(a) single - engine aeroplane;
(b) multi - engine aeroplane;
(c) single - engine helicopter;
(ca) powered - lift aircraft;
(d) single - engine gyroplane;
(e) airship.
(2) For this Part, the single - engine aeroplane class includes:
(a) multi - engine centre - line thrust aeroplanes; and
(b) multi - engine aeroplanes that are prescribed by a legislative instrument under regulation 61.050 (Prescription of multi - engine aeroplanes included in single - engine aeroplane class).