Want this question answered?
A tri-wing or tri-plane.
Bi-plane
a biplane is an aeroplane with two sets of wings, one above the other.
Biplane( bi-plane )
You call a plane with two set of wings a Biplane.A plane with one set of wings is called a monoplane.A plane with three set of wings is called a triplane.
An airplane with 2 sets of wings is known as a biplane.
triplane
A biplane
a biplane
Biplane
A Biplane.
Biplane