a biplane
An airplane with 2 sets of wings is known as a biplane.
Bi-plane
It's called a bi-plane
A biplane.
A bi-wing
a bi-planeA plane with two set of wings is a biplane.
Aircraft with two wings are called biplanes.
An airplane with two wings on either side is called a biplane.
an aeroplane with two pairs of wings is called a biplane
A biplane
Biplane
two sets of wings