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 )
biplane
two sets of wings
Two sets fo wings (four total) and three sets of legs (six total). The prothorax carries legs, metathorax legs and wings, and meosthorax legs and wings. Not all adult insects have two sets of wings, but they all have six legs. Other arthropods have different parts all toghether.
ladybugs have two sets of wings
A Dragonfly has 4 sets of wings
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.
fat white wings
a dog